Christel Vanroy | University of Antwerp (original) (raw)

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Papers by Christel Vanroy

Journal of Cardiac Failure, 2016

International Journal of Cardiology, 2016

Archives of Physical Medicine and Rehabilitation, Feb 1, 2012

Acta Paediatrica, Dec 1, 2007

To assess the prevalence of metabolic syndrome (MetS) among students attending vocational seconda... more To assess the prevalence of metabolic syndrome (MetS) among students attending vocational secondary school (VSE). VSE provides practice-oriented education in which young people learn a specific occupation. Previously we reported VSE to be the type of education with the highest prevalence of overweight and obesity. All data were collected in a cross-sectional school-based survey. Subjects were recruited from a community sample of 869 adolescents in 14 secondary schools. In this total sample all components of the metabolic syndrome were assessed in a subgroup of 506 students. MetS was defined analogous to National Cholesterol Education Program: Adult Treatment Panel III criteria, with modifications for students under 19 years of age. In the subsample (n=506) 4.1% of the students had metabolic syndrome. There was a significant difference in the prevalence of metabolic syndrome among BMI categories (p<0.001). The prevalence of metabolic syndrome was higher in obese students (39.1%) than in overweight students (2.8%) and normal weight students (0.3%). Being overweight or obese substantially increases the risk for metabolic syndrome, even in an adolescent school population.

Topics in Stroke Rehabilitation, 2016

Despite confirmed reduced physical activity (PA) after stroke in various stages of recovery, the ... more Despite confirmed reduced physical activity (PA) after stroke in various stages of recovery, the type of activities stroke patients executed and the time spent at different activity levels have not been sufficiently verified with stroke-validated assessment tools. Observational study. To determine PA of sub-acute stroke patients hospitalized in a rehabilitation centre (HOS) compared to chronic home-living stroke patients (HOM) using objective and self-reported measures during 2 weekdays and 1 weekend day. Fifteen HOS and 15 HOM patients wore a Sense Wear Pro 2 accelerometer (METs*minutes/24 h) and a knee-worn pedometer Yamax Digi Walker SW 200 (steps) and filled in a coded activity diary (kcal/24 h; METs*minutes/24 h) during three consecutive days. In HOM significantly more steps (stepstotal HOM = 18722.6 ± 10063.6; stepstotal HOS = 7097.8 ± 5850.5) and higher energy expenditure (EE) levels (EEtotal HOM = 7759.34 ± 2243.04; EEtotal HOS = 5860.15 ± 1412.78) were measured. In this group less moderate activity (≥3-6 ≤ METs) was performed on a weekday (pday1 = 0.006; pday2 = 0.027) and in total (p = 0.037). Few therapy hours (physical, occupational and speech therapy, and psychological support) were provided in HOM compared to HOS (p < 0.001). Vigorous activities were only seen in HOM. In both groups few patients executed sport activities. In HOM significantly more steps were performed and higher EE values were measured. However, participation in moderate activities and time spent on therapy were less in HOM. Evaluating PA with quantitative measures is feasible in both chronic home-living and sub-acute hospitalized patients with stroke.

PLoS ONE, 2014

Objectives: to determine the concurrent validity of a physical activity diary for measuring physi... more Objectives: to determine the concurrent validity of a physical activity diary for measuring physical activity level and total energy expenditure in hospitalized stroke patients.

Parkinsonism & Related Disorders, 2007

e-SPEN, the European e-Journal of Clinical Nutrition and Metabolism, 2008

Annotation. Aim: To study the effect of a multidisciplinary school-based lifestyle intervention f... more Annotation. Aim: To study the effect of a multidisciplinary school-based lifestyle intervention for overweight and obese students attending vocational secondary school (VSE). VSE provides practice-oriented education in which young people learn a specific occupation.

Disability and Rehabilitation, 2013

Determine validity and reliability of SenseWear Pro2 Armband (SWP2A) and Yamax Digi-Walker SW-200... more Determine validity and reliability of SenseWear Pro2 Armband (SWP2A) and Yamax Digi-Walker SW-200 Pedometer (YDWP) in stroke and healthy adults. Fifteen stroke patients and 15 healthy participants wore SWP2A on upper arm and YDWP at hip/knee. Different activities were performed: treadmill walking, walking up/down a step, cycling and walking on an even surface. Steps and Energy Expenditure (EE) were measured and compared to steps counted manually and indirect calorimetry. Repeated measurements were compared to determine reliability of both devices. Spearman correlation coefficients between knee-worn YDWP and counted steps while walking on an even surface was ≥0.89 in healthy and ≥0.95 in stroke. Treadmill walking revealed high Spearman correlation coefficients in healthy individuals (rs ≥ 0.90) and at 1.5 km/h in stroke (rs = 0.69). During other activities YDWP often underestimated steps. SWP2A data revealed inconsistent results in EE and steps. Reliability tested by repeated measurements varied between 0.66 and 0.98 for YDWP and 0.61 and 0.97 for SWP2A. YDWP and SWP2A are both reliable. Only knee-worn YDWP is a valid device to measure steps except high intensity walking in stroke. YDWP systematically undercounts steps during other activities of short duration. This study could not demonstrate valid measurement of steps/EE in stroke using SWP2A. Implications for Rehabilitation Stroke is a disabling disease with residual neurologic deficits, which impairs mobility and predisposes them to sedentary behavior. A Yamax Digi-Walker SW-200 knee-worn pedometer showed to be a valid and reliable technique to measure ambulatory activity in stroke. A valid instrument to measure energy expenditure in stroke needs to be explored.

Archives of Physical Medicine and Rehabilitation, 2010

The user has requested enhancement of the downloaded file. All in-text references underlined in b... more The user has requested enhancement of the downloaded file. All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately.

Archives of Physical Medicine and Rehabilitation, 2012

Acta Paediatrica, 2007

To assess the prevalence of metabolic syndrome (MetS) among students attending vocational seconda... more To assess the prevalence of metabolic syndrome (MetS) among students attending vocational secondary school (VSE). VSE provides practice-oriented education in which young people learn a specific occupation. Previously we reported VSE to be the type of education with the highest prevalence of overweight and obesity. All data were collected in a cross-sectional school-based survey. Subjects were recruited from a community sample of 869 adolescents in 14 secondary schools. In this total sample all components of the metabolic syndrome were assessed in a subgroup of 506 students. MetS was defined analogous to National Cholesterol Education Program: Adult Treatment Panel III criteria, with modifications for students under 19 years of age. In the subsample (n=506) 4.1% of the students had metabolic syndrome. There was a significant difference in the prevalence of metabolic syndrome among BMI categories (p<0.001). The prevalence of metabolic syndrome was higher in obese students (39.1%) than in overweight students (2.8%) and normal weight students (0.3%). Being overweight or obese substantially increases the risk for metabolic syndrome, even in an adolescent school population.

International Journal of Cardiology, 2015

The variable &amp... more The variable "exercise oscillatory ventilation" (EOV), assessed during cardiopulmonary exercise test (CPET), recently became a fundamental prognostic parameter in patients with heart failure. In literature, various definitions are suggested, but an uniformly accepted description to identify EOV still lacks. We performed a systematic review of the literature in order to determine the different definitions and diagnostic techniques to assess EOV. A systematic search strategy was established and executed in seven databases (PubMed, Google Scholar, Cochrane Clinical Trials, Science Direct, Pedro, Web Of Science library and Medline (Ovid)) resulting in 605 citations after de-duplication. Full-text articles (n=124) were assessed for eligibility, resulting in 75 citations. The review accounted 17,440 patients of whom 4,638 subjects presented EOV. Seven studies described EOV in a non-heart failure population accounting 168 EOV subjects. The definitions could be categorized in nine subdivisions of which four (n=43) referred to an original description. The other subdivisions were combinations of the original definitions (n=11), quantifications (n=4), computational (n=3), vaguely described (n=8) or not defined (n=6). Symptom limited maximal exercise tests were conducted to assess EOV, however the modes, protocols, software and data sampling were divers. Heterogeneity in the numerous definitions to identify EOV and the vaguely described assessment methods are hindering the evolution to a standardized uniformly accepted definition and technique to identify this abnormal breathing pattern. Unity in definition and international adopted assessment is warranted to strengthen its validity as a prognostic marker and could promote communication. It may facilitate clinical trials on pathophysiology and origin of EOV.

Journal of Cardiac Failure, 2016

International Journal of Cardiology, 2016

Archives of Physical Medicine and Rehabilitation, Feb 1, 2012

Acta Paediatrica, Dec 1, 2007

To assess the prevalence of metabolic syndrome (MetS) among students attending vocational seconda... more To assess the prevalence of metabolic syndrome (MetS) among students attending vocational secondary school (VSE). VSE provides practice-oriented education in which young people learn a specific occupation. Previously we reported VSE to be the type of education with the highest prevalence of overweight and obesity. All data were collected in a cross-sectional school-based survey. Subjects were recruited from a community sample of 869 adolescents in 14 secondary schools. In this total sample all components of the metabolic syndrome were assessed in a subgroup of 506 students. MetS was defined analogous to National Cholesterol Education Program: Adult Treatment Panel III criteria, with modifications for students under 19 years of age. In the subsample (n=506) 4.1% of the students had metabolic syndrome. There was a significant difference in the prevalence of metabolic syndrome among BMI categories (p<0.001). The prevalence of metabolic syndrome was higher in obese students (39.1%) than in overweight students (2.8%) and normal weight students (0.3%). Being overweight or obese substantially increases the risk for metabolic syndrome, even in an adolescent school population.

Topics in Stroke Rehabilitation, 2016

Despite confirmed reduced physical activity (PA) after stroke in various stages of recovery, the ... more Despite confirmed reduced physical activity (PA) after stroke in various stages of recovery, the type of activities stroke patients executed and the time spent at different activity levels have not been sufficiently verified with stroke-validated assessment tools. Observational study. To determine PA of sub-acute stroke patients hospitalized in a rehabilitation centre (HOS) compared to chronic home-living stroke patients (HOM) using objective and self-reported measures during 2 weekdays and 1 weekend day. Fifteen HOS and 15 HOM patients wore a Sense Wear Pro 2 accelerometer (METs*minutes/24 h) and a knee-worn pedometer Yamax Digi Walker SW 200 (steps) and filled in a coded activity diary (kcal/24 h; METs*minutes/24 h) during three consecutive days. In HOM significantly more steps (stepstotal HOM = 18722.6 ± 10063.6; stepstotal HOS = 7097.8 ± 5850.5) and higher energy expenditure (EE) levels (EEtotal HOM = 7759.34 ± 2243.04; EEtotal HOS = 5860.15 ± 1412.78) were measured. In this group less moderate activity (≥3-6 ≤ METs) was performed on a weekday (pday1 = 0.006; pday2 = 0.027) and in total (p = 0.037). Few therapy hours (physical, occupational and speech therapy, and psychological support) were provided in HOM compared to HOS (p < 0.001). Vigorous activities were only seen in HOM. In both groups few patients executed sport activities. In HOM significantly more steps were performed and higher EE values were measured. However, participation in moderate activities and time spent on therapy were less in HOM. Evaluating PA with quantitative measures is feasible in both chronic home-living and sub-acute hospitalized patients with stroke.

PLoS ONE, 2014

Objectives: to determine the concurrent validity of a physical activity diary for measuring physi... more Objectives: to determine the concurrent validity of a physical activity diary for measuring physical activity level and total energy expenditure in hospitalized stroke patients.

Parkinsonism & Related Disorders, 2007

e-SPEN, the European e-Journal of Clinical Nutrition and Metabolism, 2008

Annotation. Aim: To study the effect of a multidisciplinary school-based lifestyle intervention f... more Annotation. Aim: To study the effect of a multidisciplinary school-based lifestyle intervention for overweight and obese students attending vocational secondary school (VSE). VSE provides practice-oriented education in which young people learn a specific occupation.

Disability and Rehabilitation, 2013

Determine validity and reliability of SenseWear Pro2 Armband (SWP2A) and Yamax Digi-Walker SW-200... more Determine validity and reliability of SenseWear Pro2 Armband (SWP2A) and Yamax Digi-Walker SW-200 Pedometer (YDWP) in stroke and healthy adults. Fifteen stroke patients and 15 healthy participants wore SWP2A on upper arm and YDWP at hip/knee. Different activities were performed: treadmill walking, walking up/down a step, cycling and walking on an even surface. Steps and Energy Expenditure (EE) were measured and compared to steps counted manually and indirect calorimetry. Repeated measurements were compared to determine reliability of both devices. Spearman correlation coefficients between knee-worn YDWP and counted steps while walking on an even surface was ≥0.89 in healthy and ≥0.95 in stroke. Treadmill walking revealed high Spearman correlation coefficients in healthy individuals (rs ≥ 0.90) and at 1.5 km/h in stroke (rs = 0.69). During other activities YDWP often underestimated steps. SWP2A data revealed inconsistent results in EE and steps. Reliability tested by repeated measurements varied between 0.66 and 0.98 for YDWP and 0.61 and 0.97 for SWP2A. YDWP and SWP2A are both reliable. Only knee-worn YDWP is a valid device to measure steps except high intensity walking in stroke. YDWP systematically undercounts steps during other activities of short duration. This study could not demonstrate valid measurement of steps/EE in stroke using SWP2A. Implications for Rehabilitation Stroke is a disabling disease with residual neurologic deficits, which impairs mobility and predisposes them to sedentary behavior. A Yamax Digi-Walker SW-200 knee-worn pedometer showed to be a valid and reliable technique to measure ambulatory activity in stroke. A valid instrument to measure energy expenditure in stroke needs to be explored.

Archives of Physical Medicine and Rehabilitation, 2010

The user has requested enhancement of the downloaded file. All in-text references underlined in b... more The user has requested enhancement of the downloaded file. All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately.

Archives of Physical Medicine and Rehabilitation, 2012

Acta Paediatrica, 2007

To assess the prevalence of metabolic syndrome (MetS) among students attending vocational seconda... more To assess the prevalence of metabolic syndrome (MetS) among students attending vocational secondary school (VSE). VSE provides practice-oriented education in which young people learn a specific occupation. Previously we reported VSE to be the type of education with the highest prevalence of overweight and obesity. All data were collected in a cross-sectional school-based survey. Subjects were recruited from a community sample of 869 adolescents in 14 secondary schools. In this total sample all components of the metabolic syndrome were assessed in a subgroup of 506 students. MetS was defined analogous to National Cholesterol Education Program: Adult Treatment Panel III criteria, with modifications for students under 19 years of age. In the subsample (n=506) 4.1% of the students had metabolic syndrome. There was a significant difference in the prevalence of metabolic syndrome among BMI categories (p<0.001). The prevalence of metabolic syndrome was higher in obese students (39.1%) than in overweight students (2.8%) and normal weight students (0.3%). Being overweight or obese substantially increases the risk for metabolic syndrome, even in an adolescent school population.

International Journal of Cardiology, 2015

The variable &amp... more The variable "exercise oscillatory ventilation" (EOV), assessed during cardiopulmonary exercise test (CPET), recently became a fundamental prognostic parameter in patients with heart failure. In literature, various definitions are suggested, but an uniformly accepted description to identify EOV still lacks. We performed a systematic review of the literature in order to determine the different definitions and diagnostic techniques to assess EOV. A systematic search strategy was established and executed in seven databases (PubMed, Google Scholar, Cochrane Clinical Trials, Science Direct, Pedro, Web Of Science library and Medline (Ovid)) resulting in 605 citations after de-duplication. Full-text articles (n=124) were assessed for eligibility, resulting in 75 citations. The review accounted 17,440 patients of whom 4,638 subjects presented EOV. Seven studies described EOV in a non-heart failure population accounting 168 EOV subjects. The definitions could be categorized in nine subdivisions of which four (n=43) referred to an original description. The other subdivisions were combinations of the original definitions (n=11), quantifications (n=4), computational (n=3), vaguely described (n=8) or not defined (n=6). Symptom limited maximal exercise tests were conducted to assess EOV, however the modes, protocols, software and data sampling were divers. Heterogeneity in the numerous definitions to identify EOV and the vaguely described assessment methods are hindering the evolution to a standardized uniformly accepted definition and technique to identify this abnormal breathing pattern. Unity in definition and international adopted assessment is warranted to strengthen its validity as a prognostic marker and could promote communication. It may facilitate clinical trials on pathophysiology and origin of EOV.