http://mobile.journals.lww.com/jnpt/_layouts/15/oaks.journals.mobile/articleviewer.aspx?year=2016&issue=10000&article=00004
Danks, Kelly A. PT, DPT; Pohlig, Ryan T. PhD; Roos, Margie PT, DPT, PhD; Wright, Tamara R. PT, DPT; Reisman, Darcy S. PT, PhD
Journal of Neurologic Physical Therapy
October 2016
Vol. 40 - Issue 4: p 232–238
October 2016
Vol. 40 - Issue 4: p 232–238
Abstract
Background/Purpose:
Many factors appear to be related to physical activity after stroke,
yet it is unclear how these factors interact and which ones might be the
best predictors. Therefore, the purpose of this study was twofold: (1)
to examine the relationship between walking capacity and walking
activity, and (2) to investigate how biopsychosocial factors and
self-efficacy relate to walking activity, above and beyond walking
capacity impairment poststroke.
Methods: Individuals
greater than 3 months poststroke (n = 55) completed the Yesavage
Geriatric Depression Scale (GDS), Fatigue Severity Scale (FSS), Modified
Cumulative Illness Rating (MCIR) Scale, Walk 12, Activities-Specific
Balance Confidence (ABC) Scale, Functional Gait Assessment (FGA), and
oxygen consumption testing. Walking activity data were collected via a
StepWatch Activity Monitor. Predictors were grouped into 3 constructs:
(1) walking capacity: oxygen consumption and FGA; (2) biopsychosocial:
GDS, FSS, and MCIR; (3) self-efficacy: Walk 12 and ABC. Moderated
sequential regression models were used to examine what factors best
predicted walking activity.
Results: Walking capacity explained 35.9% (P < 0.001) of the variance in walking activity. Self-efficacy (ΔR2 = 0.15, P < 0.001) and the interaction between the FGA×ABC (ΔR2 = 0.047, P < 0.001) significantly increased the variability explained. The FGA (β = 0.37, P = 0.01), MCIR (β = -0.26, P = 0.01), and Walk 12 (β = −0.45, P = 0.00) were each individually significantly associated with walking activity.
Discussion
and Conclusion: Although measures of walking capacity and self-efficacy
significantly contributed to “real-world” walking activity, balance
self-efficacy moderated the relationship between walking capacity and
walking activity. Improving balance self-efficacy may augment walking
capacity and translate to improved walking activity poststroke.
Video Abstract available for more insights from the authors (see Supplemental Digital Content 1, http://links.lww.com/JNPT/A139).
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