Abstract
Objective
To test the safety, feasibility, and effectiveness of reducing sitting time in stroke
survivors.
Design
Randomized controlled trial with attention-matched controls and blinded assessments.
Setting
Community.
Participants
Stroke survivors (N=35; 22 men; mean age, 66.9±12.7y).
Interventions
Four counseling sessions over 7 weeks with a message of sit less and move more (intervention
group) or calcium for bone health (attention-matched control group).
Main Outcome Measures
Measures included safety (adverse events, increases in pain, spasticity, or fatigue)
and feasibility (adherence to trial protocol). Secondary measures included time spent
sitting (including in prolonged bouts ≥30min), standing, and stepping as measured
by the thigh-worn inclinometer (7d, 24h/d protocol) and time spent in physical activity
of at least moderate intensity as measured by a triaxial accelerometer. The Multimedia
Activity Recall for Children and Adults was used to describe changes in use of time.
Results
Thirty-three participants completed the full protocol. Four participants reported
falls during the intervention period with no other adverse events. From a baseline
average of 640.7±99.6min/d, daily sitting time reduced on average by 30±50.6min/d
(95% confidence interval [CI], 5.8–54.6) in the intervention group and 40.4±92.5min/d
in the control group (95% CI, 13.0–93.8). Participants in both groups also reduced
their time spent in prolonged sitting bouts (≥30min) and increased time spent standing
and stepping.
Conclusions
Our protocol was both safe and feasible. Participants in both groups spent less time
sitting and more time standing and stepping postintervention, but outcomes were not
superior for intervention participants. Attention matching is desirable in clinical
trials and may have contributed to the positive outcomes for control participants.
Keywords
List of abbreviations:
CI (confidence interval), MARCA (Multimedia Activity Recall for Children and Adults), MVPA (moderate-to-vigorous physical activity)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: October 31, 2015
Footnotes
Current affiliation for English, School of Health Sciences, University of Newcastle, Newcastle, NSW, Australia.
Supported by the National Stroke Foundation Nancy and Vic Meyers Prevention Grant; a National Health and Medical Research Council Training Fellowship (no. 610312); a National Health and Medical Research Council Career Development Fellowship (no. 108029); a Heart Foundation Postdoctoral Fellowship (no. PH 12B 7054); a National Health and Medical Research Council Established Research Fellowship (no. 1058635); infrastructure support from the Victorian State Government; and the Australian Government's Collaborative Research Networks program.
Australian and New Zealand Trial Registry No.: ACTRN12612000958886.
Disclosures: none.
Identification
Copyright
© 2016 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.
