Muscle impairments and behavioral factors mediate functional limitations and disability following stroke

Nathan K LeBrasseur, Stephen P. Sayers, Michelle M. Ouellette, Roger A. Fielding

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Background and Purpose. Stroke remains the leading cause of disability in the United States. The purposes of this study were to examine whether quantitative measures of muscle strength and power in the involved lower extremity predict functional limitations and to evaluate the contributions of behavioral factors to mediating disability and quality of life in people who have survived a stroke. Subjects and Methods. A cross-sectional study design was used, and measurements of muscle impairment, lower-body function, disability, quality of life, and behavioral factors were obtained for 31 community-dwelling volunteers who had experienced a single ischemic stroke in the past 6 to 24 months. Results. Stepwise regression models including impairment and behavioral measures were strong predictors of function, disability, and quality of life. Involved-extremity muscle strength and power and self-efficacy were independently associated with function, whereas depression and self-efficacy were strong predictors of disability and quality of life. Discussion and Conclusion. The findings warrant future studies to determine whether interventions that address muscle strength and power, depressive symptoms, and low self-efficacy effectively improve function, reduce disability, and enhance quality of life in people who have survived a stroke.

Original languageEnglish (US)
Pages (from-to)1342-1350
Number of pages9
JournalPhysical Therapy
Volume86
Issue number10
DOIs
StatePublished - Oct 2006
Externally publishedYes

Fingerprint

Stroke
Quality of Life
Muscle Strength
Self Efficacy
Muscles
Depression
Independent Living
Volunteers
Lower Extremity
Extremities
Cross-Sectional Studies
Power (Psychology)

Keywords

  • Cerebrovascular accident
  • Power
  • Quality of life
  • Self-efficacy
  • Strength

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Health Professions(all)
  • Orthopedics and Sports Medicine

Cite this

Muscle impairments and behavioral factors mediate functional limitations and disability following stroke. / LeBrasseur, Nathan K; Sayers, Stephen P.; Ouellette, Michelle M.; Fielding, Roger A.

In: Physical Therapy, Vol. 86, No. 10, 10.2006, p. 1342-1350.

Research output: Contribution to journalArticle

LeBrasseur, Nathan K ; Sayers, Stephen P. ; Ouellette, Michelle M. ; Fielding, Roger A. / Muscle impairments and behavioral factors mediate functional limitations and disability following stroke. In: Physical Therapy. 2006 ; Vol. 86, No. 10. pp. 1342-1350.
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