Natalie A Fini1, Julie Bernhardt2, Anne E Holland3. 1. Physiotherapy Department, Alfred Health, Melbourne, Australia; Physiotherapy Department, La Trobe University, Melbourne, Australia; Physiotherapy Department, The University of Melbourne, Parkville, Australia. Electronic address: natalie.fini@unimelb.edu.au. 2. Stroke Division, Florey Institute of Neurosciences and Mental Health, Heidelberg, Australia. 3. Physiotherapy Department, Alfred Health, Melbourne, Australia; Physiotherapy Department, La Trobe University, Melbourne, Australia; Department of Allergy, Immunology and Respiratory Medicine, Monash University, Melbourne, Australia.
Abstract
BACKGROUND: The relationship between pre- and post-stroke physical activity levels is underexplored. OBJECTIVE: To determine whether self-reported physical activity changes from pre-stroke to two years post-stroke; and to explore the relationship between self-reported and objectively measured physical activity post-stroke. METHODS: Stroke survivors admitted to rehabilitation were included in this observational study. Participants were assessed at rehabilitation discharge (five months post-stroke) and two years later. Participants were asked about their pre-stroke and current activity levels. The Sensewear Armband was worn for one week to measure physical activity at each timepoint. The relationship between self-reported and objectively measured physical activity was explored with Spearman correlation coefficients and multiple regression models. RESULTS: Sixty-eight stroke survivors (65% male, mean age 64) participated at baseline. Fifty participants reported undertaking physical activity pre-stroke, and 48 of these active participants reported undertaking physical activity two years post-stroke. At two years one third of the active participants reported doing the same type of activity (primarily walking). Approximately one third reported doing the same type of activity and more and approximately one third had to modify the type of activity undertaken. Self-reporting of physical activity time was positively correlated with objective measures of physical activity at two years (r = 0.61, p<0.001). Objectively measured physical activity, age, and sex predicted 26.5% of the variance in self-reported physical activity (p<0.001). CONCLUSION: In this single-site study of relatively able participants, stroke survivors frequently returned to their pre-stroke types of physical activity. A positive correlation between self-reported and objective measures of physical activity was demonstrated, but self-reported activity overestimates objective physical activity post-stroke.
BACKGROUND: The relationship between pre- and post-stroke physical activity levels is underexplored. OBJECTIVE: To determine whether self-reported physical activity changes from pre-stroke to two years post-stroke; and to explore the relationship between self-reported and objectively measured physical activity post-stroke. METHODS: Stroke survivors admitted to rehabilitation were included in this observational study. Participants were assessed at rehabilitation discharge (five months post-stroke) and two years later. Participants were asked about their pre-stroke and current activity levels. The Sensewear Armband was worn for one week to measure physical activity at each timepoint. The relationship between self-reported and objectively measured physical activity was explored with Spearman correlation coefficients and multiple regression models. RESULTS: Sixty-eight stroke survivors (65% male, mean age 64) participated at baseline. Fifty participants reported undertaking physical activity pre-stroke, and 48 of these active participants reported undertaking physical activity two years post-stroke. At two years one third of the active participants reported doing the same type of activity (primarily walking). Approximately one third reported doing the same type of activity and more and approximately one third had to modify the type of activity undertaken. Self-reporting of physical activity time was positively correlated with objective measures of physical activity at two years (r = 0.61, p<0.001). Objectively measured physical activity, age, and sex predicted 26.5% of the variance in self-reported physical activity (p<0.001). CONCLUSION: In this single-site study of relatively able participants, stroke survivors frequently returned to their pre-stroke types of physical activity. A positive correlation between self-reported and objective measures of physical activity was demonstrated, but self-reported activity overestimates objective physical activity post-stroke.
Authors: Sarah A Moore; Kate Hallsworth; Les J C Bluck; Gary A Ford; Lynn Rochester; Michael I Trenell Journal: Stroke Date: 2012-04-12 Impact factor: 7.914