Sedentary Behavior Is an Independent Predictor of Mortality in Subjects With COPD (original) (raw)
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Revista Brasileira De Fisioterapia, 2020
BackgroundFew studies have examined sedentary behaviour in chronic respiratory disease. The limited evidence suggests that increased levels of sedentary behaviour are associated with increased mortality.ObjectivesThis study aimed to compare the level of self-reported sedentary behaviour in people with chronic obstructive pulmonary disease (COPD) and bronchiectasis as well as to identify associations between sedentary time with functional performance measures and health-related quality of life in the chronic respiratory disease group.MethodsAn observational study design was used. Participants completed the Sedentary Behaviour Questionnaire from which average sedentary time (hours/day) was determined. Functional performance was measured using the six-minute walk test, the four-metre gait speed test and the five sit-to-stand test. Health-related quality of life was measured using the St George's Respiratory Questionnaire. Sedentary time was compared between groups using an unpaired t-test. Univariate analysis explored relationships amongst variables.ResultsThe convenience sample consisted of 103 people with COPD [52% male; mean ± SD age: 73 ± 9 years, FEV1% predicted: 56 ± 23] and 33 people with bronchiectasis [52% male; 74 ± 8 years, FEV1% predicted: 69 ± 25]. Average self-reported sedentary time in COPD was 7.6 ± 2.7 hours/day and in bronchiectasis was 8.0 ± 4.1 hours/day, with no between-group difference (−0.4, 95% CI −1.7, 0.8). No associations were found between sedentary time and any functional performance outcome or with health-related quality of life.ConclusionThere was no difference in the high sedentary time between people with COPD and bronchiectasis. Sedentary behaviour was not associated with functional performance or disease-related health-related quality of life in people with chronic respiratory disease.
Chronic Respiratory Disease, 2021
Objective: To describe and compare energy expenditure (EE)/minute walking and in different body postures in individuals with COPD; and to investigate if EE/minute walking is a predictor of their classification as physically active or inactive. Methods: Physical activity (PA) in daily life was objectively assessed using two PA monitors for 7 days and data were analyzed on a minute-by-minute basis. Predominant minutes were separated into walking, standing, sitting, and reclined, and EE/minute (a reflection of PA intensity) was then calculated in each of these four activities and postures. Participants were classified as active and inactive according to the criteria proposed by the American College of Sports Medicine (ACSM). Results: 43 individuals were evaluated (65±8 years; FEV1 50±14% predicted). A binary logistic regression model yielded that, regardless of the time spent walking/day, EE/minute walking was a significant predictor of the classification as physically active (OR=18.2 ...
Heart & Lung: The Journal of Acute and Critical Care, 2013
Background-People with chronic obstructive pulmonary disease (COPD) are sedentary but the extent of the problem is not fully understood. Purposes-This study examines sedentary time and physical activity (PA) and the relative effects of demographic and clinical characteristics on sedentary time and PA in a population-based sample of people with COPD and a comparison group from the general population. Methods-Subjects were drawn from the National Health and Nutrition Examination Survey dataset (2003-2006). Physical activity was measured by accelerometry. Results-People with COPD were sedentary and spent less time in most levels of PA. Age, gender, race, level of education, working status, shortness of breath, self-reported health, and body mass index were significantly associated with sedentary time or level of PA. Conclusion-Findings emphasize the need to decrease sedentary time and increase PA in people with COPD.
Levels of physical activity and predictors of mortality in COPD
Jornal Brasileiro de Pneumologia, 2013
OBJECTIVE: To compare the Body mass index, airway Obstruction, Dyspnea, andExercise capacity (BODE) index scores and its individual components between COPD patients with and without severe physical inactivity, as well as to correlate the number of steps/day with scores of physical activity questionnaires, age, and the BODE index (including its components).METHODS: We included 30 patients, who were evaluated for body composition, pulmonary function (FEV1), perception of dyspnea (modified Medical Research Council scale), and exercise capacity (six-minute walk distance [6MWD]). The patients also completed the International Physical Activity Questionnaire (IPAQ), short version, and the modified Baecke questionnaire (mBQ). The level of physical activity was assessed by the number of steps/day (as determined by pedometer), using the cut-off of 4,580 steps/day to form two groups: no severe physical inactivity (SPI−) and severe physical inactivity (SPI+). We used the Mann-Whitney test or t-...
Predictors of Physical Inactivity in Elderly Patients with Chronic Obstructive Pulmonary Disease
International Journal of Gerontology, 2014
Background: Aging may contribute to decreased physical activity in chronic obstructive pulmonary disease (COPD). We explored the predictors of physical inactivity in older patients with COPD. Methods: Thirty male patients with clinically stable COPD participated in the study (age 66.9 AE 4.3 years, forced expiratory volume in 1 second [FEV 1 , % of predicted] 52.6 AE 24.6%). Patient characteristics were recorded. Pulmonary function testing was performed and disease stage was determined using the Global Initiative for Chronic Obstructive Pulmonary Disease (GOLD) classification system. Maximal inspiratory and expiratory muscle strength and quadriceps muscle strength were determined using a hand-held device. Dyspnea perception was assessed using the modified Medical Research Council (MMRC) scale. Functional capacity was evaluated using a 6-minute walk test (6MWT). Heart rate and oxygen saturation were recorded before and after 6MWT. Physical activity was assessed using the International Physical Activity Questionnaire (IPAQ). Results: In elderly COPD patients, the IPAQ sitting score was significantly related to 6MWT distance (r ¼ À0.51), GOLD stage (r ¼ 0.52), paroxysmal nocturnal dyspnea (r ¼ À0.42) and orthopnea (r ¼ À0.50), MMRC score (r ¼ 0.40), FEV 1 (r ¼ À0.48), FEV 1 /forced vital capacity (FVC) (r ¼ À0.47), forced expiratory flow between 25% and 75% of FVC (r ¼ À0.43), peak expiratory flow (r ¼ À0.43), baseline heart rate (r ¼ 0.40), change in heart rate (r ¼ À0.46), and baseline oxygen saturation (r ¼ À0.43, p < 0.05). GOLD stage, change in heart rate, and orthopnea independently predicted the IPAQ sitting score (R ¼ 0.732, R 2 ¼ 0.536, F (1,24) ¼ 4.769, p ¼ 0.039). Conclusion: Disease severity, heart rate response to exercise, and orthopnea are determinants of physical inactivity in elderly COPD.
Physical activity, sedentary behaviour and sleep in COPD guidelines: A systematic review
Chronic Respiratory Disease, 2017
Objectives: Physical activity, sedentary and sleep behaviours have strong associations with health. This systematic review aimed to identify how clinical practice guidelines (CPGs) for the management of chronic obstructive pulmonary disease (COPD) report specific recommendations and strategies for these movement behaviours. Methods: A systematic search of databases (Medline, Scopus, CiNAHL, EMbase, Clinical Guideline), reference lists and websites identified current versions of CPGs published since 2005. Specific recommendations and strategies concerning physical activity, sedentary behaviour and sleep were extracted verbatim. The proportions of CPGs providing specific recommendations and strategies were reported. Results: From 2370 citations identified, 35 CPGs were eligible for inclusion. Of these, 21 (60%) provided specific recommendations for physical activity, while none provided specific recommendations for sedentary behaviour or sleep. The most commonly suggested strategies t...
Physical activity assessed in routine care predicts mortality after a COPD hospitalisation
ERJ open research, 2016
The independent relationship between physical inactivity and risk of death after an index chronic obstructive pulmonary disease (COPD) hospitalisation is unknown. We conducted a retrospective cohort study in a large integrated healthcare system. Patients were included if they were hospitalised for COPD between January 1, 2011 and December 31, 2011. All-cause mortality in the 12 months after discharge was the primary outcome. Physical activity, expressed as self-reported minutes of moderate to vigorous physical activity (MVPA), was routinely assessed at outpatient visits prior to hospitalisation. 1727 (73%) patients were inactive (0 min of MVPA per week), 412 (17%) were insufficiently active (1-149 min of MVPA per week) and 231 (10%) were active (≥150 min of MVPA per week). Adjusted Cox regression models assessed risk of death across the MVPA categories. Among 2370 patients (55% females and mean age 73±11 years), there were 464 (20%) deaths. Patients who were insufficiently active or...
Journal of Clinical Medicine, 2019
This study applies a cluster analysis to identify typical physical activity (PA) and sedentary behaviour (SB) patterns in people with chronic obstructive pulmonary disease (COPD) before starting pulmonary rehabilitation (PR). We implemented an observational design which assessed baseline data of objectively measured PA and SB from the STAR (Stay Active after Rehabilitation) study. A total of 355 persons wore an accelerometer (Actigraph wGT3X) for seven days before the start of their PR. Sociodemographic and disease-related parameters were assessed at the start of PR. We applied cluster analysis and compared clusters applying univariate variance analyses. Data was available for 326 persons (31.6% women; age ø = 58 years). Cluster analysis revealed four movement clusters with distinct PA and SB patterns: Sedentary non-movers (28.5%), sedentary occasional movers (41.7%), sedentary movers (19.6%), and sedentary exercisers (10.1%). The four clusters displayed varying levels of moderate P...
Physical activity in COPD patients: patterns and bouts
European Respiratory Journal, 2013
The present study aims to describe the pattern of physical activity and the frequency, duration and intensity of physical activity bouts in patients with chronic obstructive pulmonary disease (COPD), to assess how these patterns differ according to COPD severity, and to explore whether these patients meet the general guidelines for physical activity for older adults. 177 patients (94% male, mean¡SD age 71¡8 years and forced expiratory volume in 1 s 52¡16% predicted) wore the SenseWear Pro 2 Armband accelerometer for eight consecutive days. Physical activity bouts were defined as periods of o10 min above 1.5 metabolic equivalent tasks and classified according to their median intensity. Patients engaged in activity a median of 153 min?day-1 and 57% of that time was spent in bouts. Median frequencies of bouts per day were four and three for all and moderate-to-vigorous intensities, respectively. With increasing COPD severity, time in physical activity, proportion of time in bouts and frequency of bouts decreased. 61% of patients fulfilled the recommended physical activity guidelines. In conclusion, COPD patients of all spirometric severity stages engage in physical activity bouts of moderate-to-vigorous intensities. Patients with severe and very severe COPD perform their daily activities in fewer and shorter bouts than those in mild and moderate stages. @ERSpublications Patients with severe COPD perform their daily activities in fewer, shorter bouts than those in mild and moderate stages http://ow.ly/nug7k