Ingrid Hendriksen - Academia.edu (original) (raw)
Papers by Ingrid Hendriksen
International Journal of Behavioral Nutrition and Physical Activity, Jun 28, 2016
Background: Regular physical activity is associated with physical, social and mental health benef... more Background: Regular physical activity is associated with physical, social and mental health benefits, whilst insufficient physical activity is associated with several negative health outcomes (e.g. metabolic problems). Population monitoring of physical activity is important to gain insight into prevalence of compliance to physical activity recommendations, groups at risk and changes in physical activity patterns. This review aims to provide an overview of all existing studies that measure physical activity in youth, in cross-European studies, to describe the variation in population levels of physical activity and to describe and define challenges regarding assessment methods that are used. Methods: A systematic search was performed on six databases (PubMed, EMBASE, CINAHL, PsycINFO, SportDiscus and OpenGrey), supplemental forward-and backward tracking was done and authors' and experts' literature databases were searched to identify relevant articles. Journal articles or reports that reported levels of physical activity in the general population of youth from cross-European studies were included. Data were reviewed, extracted and assessed by two researchers, with disagreements being resolved by a third researcher. The review protocol of this review is published under registration number CRD42014010684 in the PROSPERO database. Results: The search resulted in 9756 identified records of which 30 articles were included in the current review. This review revealed large differences between countries in prevalence of compliance to physical activity recommendations (i.e. 60 min of daily moderate-to vigorous-intensity physical activity (MVPA)) measured subjectively (5-47 %) and accelerometer measured minutes of MVPA (23-200 min). Overall boys and children were more active than girls and adolescents. Different measurement methods (subjective n = 12, objective n = 18) and reported outcome variables (n = 17) were used in the included articles. Different accelerometer intensity thresholds used to define MVPA resulted in substantial differences in MVPA between studies conducted in the same countries when assessed objectively.
Translational behavioral medicine, Jun 6, 2019
The scandal of premature mortality in people with serious mental illness is well established. Des... more The scandal of premature mortality in people with serious mental illness is well established. Despite an increase in studies evaluating the efficacy of lifestyle interventions, translating this evidence into routine clinical care and policies is challenging, in part due to limited effectiveness or implementation research. We highlight the challenge of implementation that is increasingly recognized in clinical practice, advocate for adopting implementation science to study the implementation and systematic update of effective interventions in practice and policy, and provide directions for future research.
BMC Psychiatry, Mar 31, 2022
Tijdschrift voor psychiatrie, 2020
An unhealthy lifestyle plays an important role in the substantially reduced life-expectancy of in... more An unhealthy lifestyle plays an important role in the substantially reduced life-expectancy of inpatients with severe mental illness (SMI). However, there is a lack of evidence on the long-term effectiveness and implementation of lifestyle improvements in inpatient mental healthcare.
AIM: Increasing knowledge and understanding of (the implementation of) lifestyle changes in inpatients with SMI in longer-term clinical care.
METHOD: Cross-sectional research followed by an observational study to evaluate a multidisciplinary lifestyle enhancing treatment (MULTI) for both changes in health-related outcomes after 18 months compared to treatment as usual (TAU), and the implementation barriers and facilitators.
RESULTS: Patients were very sedentary and less physically active compared to people without SMI. After 18 months, MULTI showed significant improvements in total physical activity, cardiometabolic risk factors, psychosocial functioning and mediation use, compared to TAU. Physical health did not improve in TAU. The implementation of MULTI was hampered by organisational factors and facilitated by positive attitudes of healthcare professionals and patients towards MULTI and their own role in it.
CONCLUSION: Using a multidisciplinary integrated approach, it is possible to improve the lifestyle, and thus the health status, of SMI inpatients, within the current context of routine mental healthcare.
Background The mortality gap of 13-30 years between severe mentally ill (SMI) patients and the ge... more Background The mortality gap of 13-30 years between severe mentally ill (SMI) patients and the general population is mainly caused by cardiovascular disease. Especially long-term inpatients are characterized by an unhealthy lifestyle, whereby they are sedentary (sitting/lying) for 84% of the time. However, in this severely ill population, changing lifestyle-behaviour is challenging. Therefore, we started a multidisciplinary lifestyle-enhancing treatment, based on a ‘change-from-within-principle’, and evaluated improvements in both physical and mental health and functioning after 18 months. Methods Quasi-experimental design in long-term SMI inpatients whose baseline data (2013) was available and if they participated in no other lifestyle-related intervention (N=123). We collected: - Physical activity (PA); accelerometer-measured during 5 days [ActiGraph GT3X+] - Metabolic risk factors [weight, abdominal girth (cm), blood-pressure and –levels] - Psychotic symptoms [PANSS-r] - Psychosocial functioning [HoNOS] - Quality of life (QoL) [EQ-5D & WHOQoL-Bref] Analysis: hierarchical multilevel regression using change-scores, correcting for baseline outcome-value, age, diagnosis, baseline illness-severity and treatment-ward. Findings Sufficient data of intervention (N=65) and controls (N=49), who differed in age, diagnosis and baseline illness-severity (p<0.01). Results show significant improvements in PA (B=0.5, p=0.02), weight (B=-4.2, p=0.04), abdominal girth (B=-3.5, p=0.03), systolic blood pressure (B=-8.0, p=0.02), HDL-cholesterol (B=0.1, p=0.03) and psychosocial functioning (B=-3.6, p=0.03). QoL improved significantly in both groups. Discussion - Results confirm that using existing resources and a multidisciplinary lifestyle-enhancing treatment, sustainable improvements in PA, metabolic risk, functioning and QoL can be achieved in long-term SMI inpatients. - No lifestyle-enhancing treatment = non-significant improvement (or deterioration) in outcomes, except for QoL.
Background There are serious metabolic health problems in especially long-term severe mentally il... more Background There are serious metabolic health problems in especially long-term severe mentally ill inpatients. After studying physical activity, quality of life and psychological determinants to understand the context of the challenge to change lifestyle behaviour, we developed a multidisciplinary lifestyle-enhancing treatment. Results after 18 months showed significant improvements in physical activity, metabolic health, quality of life and psychosocial functioning. Additionally, we wanted to perform a process-evaluation, to support further optimization and valorisation of the treatment. Methods Four categories of determinants (innovation, professional/user, organisational context and socio-political context) were assessed using a questionnaire based on the Dutch validated Measurement Instrument for Determinants of Innovations (questions scored on a 5-point Likert-scale). The questionnaire was sent digitally to 42 healthcare professionals (HP). A reduced version (e.g. excl. organisational context) was administered to patients (N=33) in a semi-structural interview. Preliminary findings Both groups were positive about determinants of the treatment (M=3.88 and M=3.89, respectively), although patients stated it wasn’t easy to participate in the treatment (M=2.18). Determinants of the HP and patients themselves scored positive (M=3.90 and M=3.76, respectively), while organisational context (e.g. staffing, facilities and financial recourses) scored low (M=2.80). Difficulties in getting patients involved, relapse after discharge and a lack of paramedical support and clear policy are main topics in open answers/suggestions. Discussion - Overall, determinants of the treatment and users seems to facilitate treatment-implementation. - Implementation strategies regarding organisational factors are needed. - Detailed analysis of scores and open answers/suggestions will be done to gain more insight into preliminary findings.
The European health psychologist, Dec 31, 2017
Background There are serious metabolic health problems in especially long-term severe mentally il... more Background There are serious metabolic health problems in especially long-term severe mentally ill inpatients. After studying physical activity, quality of life and psychological determinants to understand the context of the challenge to change lifestyle behaviour, we developed a multidisciplinary lifestyle-enhancing treatment. Results after 18 months showed significant improvements in physical activity, metabolic health, quality of life and psychosocial functioning. Additionally, we wanted to perform a process-evaluation, to support further optimization and valorisation of the treatment. Methods Four categories of determinants (innovation, professional/user, organisational context and socio-political context) were assessed using a questionnaire based on the Dutch validated Measurement Instrument for Determinants of Innovations (questions scored on a 5-point Likert-scale). The questionnaire was sent digitally to 42 healthcare professionals (HP). A reduced version (e.g. excl. organisational context) was administered to patients (N=33) in a semi-structural interview. Preliminary findings Both groups were positive about determinants of the treatment (M=3.88 and M=3.89, respectively), although patients stated it wasn’t easy to participate in the treatment (M=2.18). Determinants of the HP and patients themselves scored positive (M=3.90 and M=3.76, respectively), while organisational context (e.g. staffing, facilities and financial recourses) scored low (M=2.80). Difficulties in getting patients involved, relapse after discharge and a lack of paramedical support and clear policy are main topics in open answers/suggestions. Discussion - Overall, determinants of the treatment and users seems to facilitate treatment-implementation. - Implementation strategies regarding organisational factors are needed. - Detailed analysis of scores and open answers/suggestions will be done to gain more insight into preliminary findings.
Frontiers in Psychiatry, 2018
Background. In a systematic literature review, we investigated the effect on work performance and... more Background. In a systematic literature review, we investigated the effect on work performance and metabolic and physiological outcomes of interventions aimed at reducing sedentary behaviour (SB) an ...
Background. In a systematic literature review, we investigated the effect on work performance and... more Background. In a systematic literature review, we investigated the effect on work performance and metabolic and physiological outcomes of interventions aimed at reducing sedentary behaviour (SB) an ...
Dat onvoldoende lichaamsbeweging ernstige gezondheidsrisico’s met zich meebrengt, is al geruime t... more Dat onvoldoende lichaamsbeweging ernstige gezondheidsrisico’s met zich meebrengt, is al geruime tijd bekend. Nog vrijwel onbekend is dat lang zitten (sedentair gedrag) eveneens gezondheidsrisico’s kent, onafhankelijk of iemand voldoende sport of beweegt. Met name ons werk is een belangrijke bron van lang zitten, waardoor gesproken kan worden van een nieuw arbeidsrisico.
Tsg - Tijdschrift Voor Gezondheidswetenschappen, 2014
Actief transport (zoals lopen of fietsen) kan een belangrijke bijdrage leveren aan de dagelijkse ... more Actief transport (zoals lopen of fietsen) kan een belangrijke bijdrage leveren aan de dagelijkse lichaamsbeweging. De beschikbaarheid van een auto van de zaak maakt de keuze voor de auto makkelijker. De gegevens voor deze studie zijn afkomstig uit de enquête Ongevallen en Bewegen in Nederland. Van juli tot september 2011 hebben 1404 personen via internet de voor dit onderzoek relevante vragen omtrent autobezit, de beschikbaarheid van een auto van de zaak en toestemming voor privégebruik volledig beantwoord. Hoofdgebruikers van een auto van de zaak halen minder vaak de combinorm (37%) dan hoofdgebruikers van een privéauto (54%), niet-hoofdgebruikers van een auto van de zaak (52%, niet significant), niet-hoofdgebruikers van een privéauto (54%), hoofdgebruikers van een privéauto met tevens een auto van de zaak in het huishouden (56%) en respondenten zonder auto (52%). Geconcludeerd wordt dat hoofdgebruikers van een auto van de zaak een risicogroep vormen voor bewegingsarmoede. Aanbevolen wordt werknemers en werkgevers te attenderen op dit risico, adviezen te geven over voldoende lichaamsbeweging-waaronder actieve vervoersmogelijkhedenen bedrijfsvervoerplannen te ontwikkelen en toe te passen die actief transport stimuleren.
PLOS ONE, Dec 26, 2014
Objective: To investigate the effectiveness of a worksite social and physical environment interve... more Objective: To investigate the effectiveness of a worksite social and physical environment intervention on need for recovery (i.e., early symptoms of work-related mental and physical fatigue), physical activity and relaxation. Also, the effectiveness of the separate interventions was investigated. Methods: In this 262 factorial design study, 412 office employees from a financial service provider participated. Participants were allocated to the combined social and physical intervention, to the social intervention only, to the physical intervention only or to the control group. The primary outcome measure was need for recovery. Secondary outcomes were work-related stress (i.e., exhaustion, detachment and relaxation), small breaks, physical activity (i.e., stair climbing, active commuting, sport activities, light/moderate/vigorous physical activity) and sedentary behavior. Outcomes were measured by questionnaires at baseline, 6 and 12 months followup. Multilevel analyses were performed to investigate the effects of the three interventions. Results: In all intervention groups, a non-significant reduction was found in need for recovery. In the combined intervention (n592), exhaustion and vigorous physical activities decreased significantly, and small breaks at work and active commuting increased significantly compared to the control group. The social intervention (n5118) showed a significant reduction in exhaustion, sedentary
BMC Public Health, Jan 9, 2009
Background: The work setting provides an opportunity to introduce overweight (i.e., Body Mass Ind... more Background: The work setting provides an opportunity to introduce overweight (i.e., Body Mass Index ≥ 25 kg/ m 2) adults to a weight management programme, but new approaches are needed in this setting. The main purpose of this study was to investigate the effectiveness of lifestyle counselling by phone or e-mail on body weight, in an overweight working population. Secondary purposes were to establish effects on waist circumference and lifestyle behaviours, and to assess which communication method is the most effective. Methods: A randomized controlled trial with three treatments: intervention materials with phone counselling (phone group); a web-based intervention with e-mail counselling (internet group); and usual care, i.e. lifestyle brochures (control group). The interventions used lifestyle modification and lasted a maximum of six months. Subjects were 1386 employees, recruited from seven companies (67% male; mean age 43 (SD 8.6) y; mean BMI 29.6 (SD 3.5) kg/m 2). Body weight was measured by research personnel and by questionnaire. Secondary outcomes fat, fruit and vegetable intake, physical activity and waist circumference were assessed by questionnaire. Measurements were done at baseline and after six months. Missing body weight was multiply imputed. Results: Body weight reduced 1.5 kg (95% CI-2.2;-0.8, p < 0.001) in the phone group and 0.6 kg (95% CI-1.3;-0.01, p = 0.045) in the internet group, compared with controls. In completers analyses, weight and waist circumference in the phone group were reduced with 1.6 kg (95% CI-2.2;-1.0, p < 0.001) and 1.9 cm (95% CI-2.7;-1.0, p < 0.001) respectively, fat intake decreased with 1 fatpoint (1 to 4 grams)/day (95% CI-1.7;-0.2, p = 0.01) and physical activity increased with 866 METminutes/week (95% CI 203;1530, p = 0.01), compared with controls. The internet intervention resulted in a weight loss of 1.1 kg (95% CI-1.7;-0.5, p < 0.001) and a reduction in waist circumference of 1.2 cm (95% CI-2.1;-0.4, p = 0.01), in comparison with usual care. The phone group appeared to have more and larger changes than the internet group, but comparisons revealed no significant differences. Conclusion: Lifestyle counselling by phone and e-mail is effective for weight management in overweight employees and shows potential for use in the work setting.
BMC Public Health, Aug 24, 2016
Background: To recover from work stress, a worksite health program aimed at improving physical ac... more Background: To recover from work stress, a worksite health program aimed at improving physical activity and relaxation may be valuable. However, not every program is effective for all participants, as would be expected within a "one size fits all" approach. The effectiveness of how the program is delivered may differ across individuals. The aim of this study was to identify subgroups for whom one intervention may be better suited than another by using a new method called QUalitative INteraction Trees (QUINT). Methods: Data were used from the "Be Active & Relax" study, in which 329 office workers participated. Two delivery modes of a worksite health program were given, a social environmental intervention (group motivational interviewing delivered by team leaders) and a physical environmental intervention (environmental modifications). The main outcome was change in Need for Recovery (NFR) from baseline to 12 month follow-up. The QUINT method was used to identify subgroups that benefitted more from either type of delivery mode, by incorporating moderator variables concerning sociodemographic, health, home, and work-related characteristics of the participants. Results: The mean improvement in NFR of younger office workers in the social environmental intervention group was significantly higher than younger office workers who did not receive the social environmental intervention (10.52; 95 % CI: 4.12, 16.92). Furthermore, the mean improvement in NFR of older office workers in the social environmental intervention group was significantly lower than older office workers who did not receive the social environmental intervention (−10.65; 95 % CI: −19.35, −1.96). The results for the physical environmental intervention indicated that the mean improvement in NFR of office workers (regardless of age) who worked fewer hours overtime was significantly higher when they had received the physical environmental intervention than when they had not received this type of intervention (7.40; 95 % CI: 0.99, 13.81). Finally, for office workers who worked more hours overtime there was no effect of the physical environmental intervention. Conclusions: The results suggest that a social environmental intervention might be more beneficial for younger workers, and a physical environmental intervention might be more beneficial for employees with a few hours overtime to reduce the NFR.
PubMed, Nov 1, 1999
Hypothesis: The aim of this study was to examine whether F-16 pilots are at an increased risk of ... more Hypothesis: The aim of this study was to examine whether F-16 pilots are at an increased risk of (cervical) spine degeneration. Method: Retrospectively, X-ray slides were examined of pilots of the Royal Netherlands Air Force who were systematically radiographed (at least twice). In total, 316 pilots were evaluated: 188 F-16 pilots and 128 pilots in the control group. Two radiologists, who were blinded as to whether the X-ray films were of F-16 pilots or the control group, examined these X-rays separately. In both groups, the time between the two X-rays was on average 6 yr. Results: Though the inter-rater agreement of the X-rays was rather low, both radiologists found comparable statistically significant differences between the two groups. In the F-16 group, an increased osteophytic spurring was found at levels C4-C5 and C6-C7, and increased arthrosis deformans was found in the cervical spine. Further analysis of the data of a selected group of pilots, whereby the difference in age between both groups was minimized, showed that the higher mean age of the F-16 pilots was possibly correlated with the increased degeneration in this group. No consistent relationship was found between spinal degeneration and initial radiological status. Also, a clear relationship between spinal degeneration and flying hours could not be demonstrated. Conclusion: These findings suggest that frequent exposure to high +Gz forces might cause premature degeneration of the spine of F-16 pilots. Future research must demonstrate to what extent age, mission, and number of flying hours have influenced the results. An uniform international classification and coding system in combination with establishing an international database is recommended.
Journal of Psychosomatic Research, Nov 1, 2014
The aim of this study was to investigate which prepartum determinants contribute to the developme... more The aim of this study was to investigate which prepartum determinants contribute to the development of postpartum (PP) fatigue among working women in the Netherlands. Methods: A prospective cohort study in 15 Dutch companies was conducted to measure different potential predictors using self-administrated questionnaires at baseline and at 30 weeks of pregnancy. Fatigue was measured at 12 (N = 523) and 52 weeks (N = 436) PP using the Checklist Individual Strength (CIS). A CIS score N 76 was defined as fatigue. Results: The prevalence of fatigue at 12 and 52 weeks PP was 24.5% and 18.1%, respectively. Fourteen predictive factors were found for fatigue (R 2 = 0.37) at 12 weeks PP. Ten predictive factors were found for fatigue at 52 weeks PP (R 2 = 0.36). In general, less favourable work relationships and characteristics, poorer mental health, more passive coping styles, more sleeping problems, more fatigue during pregnancy, and beliefs about child care arrangements were related to PP fatigue. At 30 weeks of pregnancy, only more fatigue (OR = 3.69, p b 0.001; OR = 2.68, p = 0.02) and poorer mental health (OR = 0.50, p = 0.02; OR = 0.90, p = 0.78) predicted fatigue both at 12 and 52 weeks PP. Conclusions: A large number of predictive factors for PP fatigue were found. These findings indicate that different aspects can contribute to being fatigued after pregnancy. Further research is needed to investigate the effect of possible interventions by employers and/or occupational physicians.
International Journal of Behavioral Nutrition and Physical Activity, Jun 28, 2016
Background: Regular physical activity is associated with physical, social and mental health benef... more Background: Regular physical activity is associated with physical, social and mental health benefits, whilst insufficient physical activity is associated with several negative health outcomes (e.g. metabolic problems). Population monitoring of physical activity is important to gain insight into prevalence of compliance to physical activity recommendations, groups at risk and changes in physical activity patterns. This review aims to provide an overview of all existing studies that measure physical activity in youth, in cross-European studies, to describe the variation in population levels of physical activity and to describe and define challenges regarding assessment methods that are used. Methods: A systematic search was performed on six databases (PubMed, EMBASE, CINAHL, PsycINFO, SportDiscus and OpenGrey), supplemental forward-and backward tracking was done and authors' and experts' literature databases were searched to identify relevant articles. Journal articles or reports that reported levels of physical activity in the general population of youth from cross-European studies were included. Data were reviewed, extracted and assessed by two researchers, with disagreements being resolved by a third researcher. The review protocol of this review is published under registration number CRD42014010684 in the PROSPERO database. Results: The search resulted in 9756 identified records of which 30 articles were included in the current review. This review revealed large differences between countries in prevalence of compliance to physical activity recommendations (i.e. 60 min of daily moderate-to vigorous-intensity physical activity (MVPA)) measured subjectively (5-47 %) and accelerometer measured minutes of MVPA (23-200 min). Overall boys and children were more active than girls and adolescents. Different measurement methods (subjective n = 12, objective n = 18) and reported outcome variables (n = 17) were used in the included articles. Different accelerometer intensity thresholds used to define MVPA resulted in substantial differences in MVPA between studies conducted in the same countries when assessed objectively.
Translational behavioral medicine, Jun 6, 2019
The scandal of premature mortality in people with serious mental illness is well established. Des... more The scandal of premature mortality in people with serious mental illness is well established. Despite an increase in studies evaluating the efficacy of lifestyle interventions, translating this evidence into routine clinical care and policies is challenging, in part due to limited effectiveness or implementation research. We highlight the challenge of implementation that is increasingly recognized in clinical practice, advocate for adopting implementation science to study the implementation and systematic update of effective interventions in practice and policy, and provide directions for future research.
BMC Psychiatry, Mar 31, 2022
Tijdschrift voor psychiatrie, 2020
An unhealthy lifestyle plays an important role in the substantially reduced life-expectancy of in... more An unhealthy lifestyle plays an important role in the substantially reduced life-expectancy of inpatients with severe mental illness (SMI). However, there is a lack of evidence on the long-term effectiveness and implementation of lifestyle improvements in inpatient mental healthcare.
AIM: Increasing knowledge and understanding of (the implementation of) lifestyle changes in inpatients with SMI in longer-term clinical care.
METHOD: Cross-sectional research followed by an observational study to evaluate a multidisciplinary lifestyle enhancing treatment (MULTI) for both changes in health-related outcomes after 18 months compared to treatment as usual (TAU), and the implementation barriers and facilitators.
RESULTS: Patients were very sedentary and less physically active compared to people without SMI. After 18 months, MULTI showed significant improvements in total physical activity, cardiometabolic risk factors, psychosocial functioning and mediation use, compared to TAU. Physical health did not improve in TAU. The implementation of MULTI was hampered by organisational factors and facilitated by positive attitudes of healthcare professionals and patients towards MULTI and their own role in it.
CONCLUSION: Using a multidisciplinary integrated approach, it is possible to improve the lifestyle, and thus the health status, of SMI inpatients, within the current context of routine mental healthcare.
Background The mortality gap of 13-30 years between severe mentally ill (SMI) patients and the ge... more Background The mortality gap of 13-30 years between severe mentally ill (SMI) patients and the general population is mainly caused by cardiovascular disease. Especially long-term inpatients are characterized by an unhealthy lifestyle, whereby they are sedentary (sitting/lying) for 84% of the time. However, in this severely ill population, changing lifestyle-behaviour is challenging. Therefore, we started a multidisciplinary lifestyle-enhancing treatment, based on a ‘change-from-within-principle’, and evaluated improvements in both physical and mental health and functioning after 18 months. Methods Quasi-experimental design in long-term SMI inpatients whose baseline data (2013) was available and if they participated in no other lifestyle-related intervention (N=123). We collected: - Physical activity (PA); accelerometer-measured during 5 days [ActiGraph GT3X+] - Metabolic risk factors [weight, abdominal girth (cm), blood-pressure and –levels] - Psychotic symptoms [PANSS-r] - Psychosocial functioning [HoNOS] - Quality of life (QoL) [EQ-5D & WHOQoL-Bref] Analysis: hierarchical multilevel regression using change-scores, correcting for baseline outcome-value, age, diagnosis, baseline illness-severity and treatment-ward. Findings Sufficient data of intervention (N=65) and controls (N=49), who differed in age, diagnosis and baseline illness-severity (p<0.01). Results show significant improvements in PA (B=0.5, p=0.02), weight (B=-4.2, p=0.04), abdominal girth (B=-3.5, p=0.03), systolic blood pressure (B=-8.0, p=0.02), HDL-cholesterol (B=0.1, p=0.03) and psychosocial functioning (B=-3.6, p=0.03). QoL improved significantly in both groups. Discussion - Results confirm that using existing resources and a multidisciplinary lifestyle-enhancing treatment, sustainable improvements in PA, metabolic risk, functioning and QoL can be achieved in long-term SMI inpatients. - No lifestyle-enhancing treatment = non-significant improvement (or deterioration) in outcomes, except for QoL.
Background There are serious metabolic health problems in especially long-term severe mentally il... more Background There are serious metabolic health problems in especially long-term severe mentally ill inpatients. After studying physical activity, quality of life and psychological determinants to understand the context of the challenge to change lifestyle behaviour, we developed a multidisciplinary lifestyle-enhancing treatment. Results after 18 months showed significant improvements in physical activity, metabolic health, quality of life and psychosocial functioning. Additionally, we wanted to perform a process-evaluation, to support further optimization and valorisation of the treatment. Methods Four categories of determinants (innovation, professional/user, organisational context and socio-political context) were assessed using a questionnaire based on the Dutch validated Measurement Instrument for Determinants of Innovations (questions scored on a 5-point Likert-scale). The questionnaire was sent digitally to 42 healthcare professionals (HP). A reduced version (e.g. excl. organisational context) was administered to patients (N=33) in a semi-structural interview. Preliminary findings Both groups were positive about determinants of the treatment (M=3.88 and M=3.89, respectively), although patients stated it wasn’t easy to participate in the treatment (M=2.18). Determinants of the HP and patients themselves scored positive (M=3.90 and M=3.76, respectively), while organisational context (e.g. staffing, facilities and financial recourses) scored low (M=2.80). Difficulties in getting patients involved, relapse after discharge and a lack of paramedical support and clear policy are main topics in open answers/suggestions. Discussion - Overall, determinants of the treatment and users seems to facilitate treatment-implementation. - Implementation strategies regarding organisational factors are needed. - Detailed analysis of scores and open answers/suggestions will be done to gain more insight into preliminary findings.
The European health psychologist, Dec 31, 2017
Background There are serious metabolic health problems in especially long-term severe mentally il... more Background There are serious metabolic health problems in especially long-term severe mentally ill inpatients. After studying physical activity, quality of life and psychological determinants to understand the context of the challenge to change lifestyle behaviour, we developed a multidisciplinary lifestyle-enhancing treatment. Results after 18 months showed significant improvements in physical activity, metabolic health, quality of life and psychosocial functioning. Additionally, we wanted to perform a process-evaluation, to support further optimization and valorisation of the treatment. Methods Four categories of determinants (innovation, professional/user, organisational context and socio-political context) were assessed using a questionnaire based on the Dutch validated Measurement Instrument for Determinants of Innovations (questions scored on a 5-point Likert-scale). The questionnaire was sent digitally to 42 healthcare professionals (HP). A reduced version (e.g. excl. organisational context) was administered to patients (N=33) in a semi-structural interview. Preliminary findings Both groups were positive about determinants of the treatment (M=3.88 and M=3.89, respectively), although patients stated it wasn’t easy to participate in the treatment (M=2.18). Determinants of the HP and patients themselves scored positive (M=3.90 and M=3.76, respectively), while organisational context (e.g. staffing, facilities and financial recourses) scored low (M=2.80). Difficulties in getting patients involved, relapse after discharge and a lack of paramedical support and clear policy are main topics in open answers/suggestions. Discussion - Overall, determinants of the treatment and users seems to facilitate treatment-implementation. - Implementation strategies regarding organisational factors are needed. - Detailed analysis of scores and open answers/suggestions will be done to gain more insight into preliminary findings.
Frontiers in Psychiatry, 2018
Background. In a systematic literature review, we investigated the effect on work performance and... more Background. In a systematic literature review, we investigated the effect on work performance and metabolic and physiological outcomes of interventions aimed at reducing sedentary behaviour (SB) an ...
Background. In a systematic literature review, we investigated the effect on work performance and... more Background. In a systematic literature review, we investigated the effect on work performance and metabolic and physiological outcomes of interventions aimed at reducing sedentary behaviour (SB) an ...
Dat onvoldoende lichaamsbeweging ernstige gezondheidsrisico’s met zich meebrengt, is al geruime t... more Dat onvoldoende lichaamsbeweging ernstige gezondheidsrisico’s met zich meebrengt, is al geruime tijd bekend. Nog vrijwel onbekend is dat lang zitten (sedentair gedrag) eveneens gezondheidsrisico’s kent, onafhankelijk of iemand voldoende sport of beweegt. Met name ons werk is een belangrijke bron van lang zitten, waardoor gesproken kan worden van een nieuw arbeidsrisico.
Tsg - Tijdschrift Voor Gezondheidswetenschappen, 2014
Actief transport (zoals lopen of fietsen) kan een belangrijke bijdrage leveren aan de dagelijkse ... more Actief transport (zoals lopen of fietsen) kan een belangrijke bijdrage leveren aan de dagelijkse lichaamsbeweging. De beschikbaarheid van een auto van de zaak maakt de keuze voor de auto makkelijker. De gegevens voor deze studie zijn afkomstig uit de enquête Ongevallen en Bewegen in Nederland. Van juli tot september 2011 hebben 1404 personen via internet de voor dit onderzoek relevante vragen omtrent autobezit, de beschikbaarheid van een auto van de zaak en toestemming voor privégebruik volledig beantwoord. Hoofdgebruikers van een auto van de zaak halen minder vaak de combinorm (37%) dan hoofdgebruikers van een privéauto (54%), niet-hoofdgebruikers van een auto van de zaak (52%, niet significant), niet-hoofdgebruikers van een privéauto (54%), hoofdgebruikers van een privéauto met tevens een auto van de zaak in het huishouden (56%) en respondenten zonder auto (52%). Geconcludeerd wordt dat hoofdgebruikers van een auto van de zaak een risicogroep vormen voor bewegingsarmoede. Aanbevolen wordt werknemers en werkgevers te attenderen op dit risico, adviezen te geven over voldoende lichaamsbeweging-waaronder actieve vervoersmogelijkhedenen bedrijfsvervoerplannen te ontwikkelen en toe te passen die actief transport stimuleren.
PLOS ONE, Dec 26, 2014
Objective: To investigate the effectiveness of a worksite social and physical environment interve... more Objective: To investigate the effectiveness of a worksite social and physical environment intervention on need for recovery (i.e., early symptoms of work-related mental and physical fatigue), physical activity and relaxation. Also, the effectiveness of the separate interventions was investigated. Methods: In this 262 factorial design study, 412 office employees from a financial service provider participated. Participants were allocated to the combined social and physical intervention, to the social intervention only, to the physical intervention only or to the control group. The primary outcome measure was need for recovery. Secondary outcomes were work-related stress (i.e., exhaustion, detachment and relaxation), small breaks, physical activity (i.e., stair climbing, active commuting, sport activities, light/moderate/vigorous physical activity) and sedentary behavior. Outcomes were measured by questionnaires at baseline, 6 and 12 months followup. Multilevel analyses were performed to investigate the effects of the three interventions. Results: In all intervention groups, a non-significant reduction was found in need for recovery. In the combined intervention (n592), exhaustion and vigorous physical activities decreased significantly, and small breaks at work and active commuting increased significantly compared to the control group. The social intervention (n5118) showed a significant reduction in exhaustion, sedentary
BMC Public Health, Jan 9, 2009
Background: The work setting provides an opportunity to introduce overweight (i.e., Body Mass Ind... more Background: The work setting provides an opportunity to introduce overweight (i.e., Body Mass Index ≥ 25 kg/ m 2) adults to a weight management programme, but new approaches are needed in this setting. The main purpose of this study was to investigate the effectiveness of lifestyle counselling by phone or e-mail on body weight, in an overweight working population. Secondary purposes were to establish effects on waist circumference and lifestyle behaviours, and to assess which communication method is the most effective. Methods: A randomized controlled trial with three treatments: intervention materials with phone counselling (phone group); a web-based intervention with e-mail counselling (internet group); and usual care, i.e. lifestyle brochures (control group). The interventions used lifestyle modification and lasted a maximum of six months. Subjects were 1386 employees, recruited from seven companies (67% male; mean age 43 (SD 8.6) y; mean BMI 29.6 (SD 3.5) kg/m 2). Body weight was measured by research personnel and by questionnaire. Secondary outcomes fat, fruit and vegetable intake, physical activity and waist circumference were assessed by questionnaire. Measurements were done at baseline and after six months. Missing body weight was multiply imputed. Results: Body weight reduced 1.5 kg (95% CI-2.2;-0.8, p < 0.001) in the phone group and 0.6 kg (95% CI-1.3;-0.01, p = 0.045) in the internet group, compared with controls. In completers analyses, weight and waist circumference in the phone group were reduced with 1.6 kg (95% CI-2.2;-1.0, p < 0.001) and 1.9 cm (95% CI-2.7;-1.0, p < 0.001) respectively, fat intake decreased with 1 fatpoint (1 to 4 grams)/day (95% CI-1.7;-0.2, p = 0.01) and physical activity increased with 866 METminutes/week (95% CI 203;1530, p = 0.01), compared with controls. The internet intervention resulted in a weight loss of 1.1 kg (95% CI-1.7;-0.5, p < 0.001) and a reduction in waist circumference of 1.2 cm (95% CI-2.1;-0.4, p = 0.01), in comparison with usual care. The phone group appeared to have more and larger changes than the internet group, but comparisons revealed no significant differences. Conclusion: Lifestyle counselling by phone and e-mail is effective for weight management in overweight employees and shows potential for use in the work setting.
BMC Public Health, Aug 24, 2016
Background: To recover from work stress, a worksite health program aimed at improving physical ac... more Background: To recover from work stress, a worksite health program aimed at improving physical activity and relaxation may be valuable. However, not every program is effective for all participants, as would be expected within a "one size fits all" approach. The effectiveness of how the program is delivered may differ across individuals. The aim of this study was to identify subgroups for whom one intervention may be better suited than another by using a new method called QUalitative INteraction Trees (QUINT). Methods: Data were used from the "Be Active & Relax" study, in which 329 office workers participated. Two delivery modes of a worksite health program were given, a social environmental intervention (group motivational interviewing delivered by team leaders) and a physical environmental intervention (environmental modifications). The main outcome was change in Need for Recovery (NFR) from baseline to 12 month follow-up. The QUINT method was used to identify subgroups that benefitted more from either type of delivery mode, by incorporating moderator variables concerning sociodemographic, health, home, and work-related characteristics of the participants. Results: The mean improvement in NFR of younger office workers in the social environmental intervention group was significantly higher than younger office workers who did not receive the social environmental intervention (10.52; 95 % CI: 4.12, 16.92). Furthermore, the mean improvement in NFR of older office workers in the social environmental intervention group was significantly lower than older office workers who did not receive the social environmental intervention (−10.65; 95 % CI: −19.35, −1.96). The results for the physical environmental intervention indicated that the mean improvement in NFR of office workers (regardless of age) who worked fewer hours overtime was significantly higher when they had received the physical environmental intervention than when they had not received this type of intervention (7.40; 95 % CI: 0.99, 13.81). Finally, for office workers who worked more hours overtime there was no effect of the physical environmental intervention. Conclusions: The results suggest that a social environmental intervention might be more beneficial for younger workers, and a physical environmental intervention might be more beneficial for employees with a few hours overtime to reduce the NFR.
PubMed, Nov 1, 1999
Hypothesis: The aim of this study was to examine whether F-16 pilots are at an increased risk of ... more Hypothesis: The aim of this study was to examine whether F-16 pilots are at an increased risk of (cervical) spine degeneration. Method: Retrospectively, X-ray slides were examined of pilots of the Royal Netherlands Air Force who were systematically radiographed (at least twice). In total, 316 pilots were evaluated: 188 F-16 pilots and 128 pilots in the control group. Two radiologists, who were blinded as to whether the X-ray films were of F-16 pilots or the control group, examined these X-rays separately. In both groups, the time between the two X-rays was on average 6 yr. Results: Though the inter-rater agreement of the X-rays was rather low, both radiologists found comparable statistically significant differences between the two groups. In the F-16 group, an increased osteophytic spurring was found at levels C4-C5 and C6-C7, and increased arthrosis deformans was found in the cervical spine. Further analysis of the data of a selected group of pilots, whereby the difference in age between both groups was minimized, showed that the higher mean age of the F-16 pilots was possibly correlated with the increased degeneration in this group. No consistent relationship was found between spinal degeneration and initial radiological status. Also, a clear relationship between spinal degeneration and flying hours could not be demonstrated. Conclusion: These findings suggest that frequent exposure to high +Gz forces might cause premature degeneration of the spine of F-16 pilots. Future research must demonstrate to what extent age, mission, and number of flying hours have influenced the results. An uniform international classification and coding system in combination with establishing an international database is recommended.
Journal of Psychosomatic Research, Nov 1, 2014
The aim of this study was to investigate which prepartum determinants contribute to the developme... more The aim of this study was to investigate which prepartum determinants contribute to the development of postpartum (PP) fatigue among working women in the Netherlands. Methods: A prospective cohort study in 15 Dutch companies was conducted to measure different potential predictors using self-administrated questionnaires at baseline and at 30 weeks of pregnancy. Fatigue was measured at 12 (N = 523) and 52 weeks (N = 436) PP using the Checklist Individual Strength (CIS). A CIS score N 76 was defined as fatigue. Results: The prevalence of fatigue at 12 and 52 weeks PP was 24.5% and 18.1%, respectively. Fourteen predictive factors were found for fatigue (R 2 = 0.37) at 12 weeks PP. Ten predictive factors were found for fatigue at 52 weeks PP (R 2 = 0.36). In general, less favourable work relationships and characteristics, poorer mental health, more passive coping styles, more sleeping problems, more fatigue during pregnancy, and beliefs about child care arrangements were related to PP fatigue. At 30 weeks of pregnancy, only more fatigue (OR = 3.69, p b 0.001; OR = 2.68, p = 0.02) and poorer mental health (OR = 0.50, p = 0.02; OR = 0.90, p = 0.78) predicted fatigue both at 12 and 52 weeks PP. Conclusions: A large number of predictive factors for PP fatigue were found. These findings indicate that different aspects can contribute to being fatigued after pregnancy. Further research is needed to investigate the effect of possible interventions by employers and/or occupational physicians.