Knee extensor muscles strength indicates global lower-limb strength in individuals who have suffered a stroke: A cross-sectional study.

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  • Additional Information
    • Source:
      Publisher: Elsevier B.V Country of Publication: Brazil NLM ID: 101615124 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1809-9246 (Electronic) Linking ISSN: 14133555 NLM ISO Abbreviation: Braz J Phys Ther Subsets: MEDLINE
    • Publication Information:
      Publication: 2017-: Amsterdam, The Netherlands : Elsevier B.V.
      Original Publication: São Carlos, SP - Brasil : Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterpia, 2013.
    • Subject Terms:
      Ankle Joint/*physiopathology ; Knee/*physiopathology ; Lower Extremity/*physiopathology ; Range of Motion, Articular/*physiology ; Stroke/*physiopathology; Cross-Sectional Studies ; Humans ; Muscle Strength/physiology
    • Abstract:
      Objectives: This study had three aims: (1) to evaluate the relationships between the paretic knee extensor muscle strength and global lower-limb strength in individuals who had suffered a sub-acute/chronic stroke, (2) to determine whether global lower-limb strength, sex, body mass index, or age could predict knee extensor muscle strength, and 3) to investigate whether the results obtained via a Modified Sphygmomanometer Test (MST) would be similar to those obtained using a hand-held dynamometer.
      Methods: This was a cross-sectional study, performed at a research laboratory, at participants' homes, or at outpatient clinics. Forty-two individuals with a sub-acute stroke and 45 individuals with a chronic stroke participated. Maximum isometric strength of the paretic lower-limb muscles (i.e. hip, knee, and ankle flexors/extensors, hip abductors) was measured using the MST and a hand-held dynamometer.
      Results: Significant and high correlation coefficients were found between knee extensor muscle strength and global lower-limb strength as measured by the combined strength values of 6 lower limb muscle groups in individuals with sub-acute (0.81≤r≤0.88; p<0.05) and chronic (0.82≤r≤0.85; p<0.05) stroke. Step-wise multiple regression analysis revealed that only global lower-limb strength was retained in the model and accounted for 66-78% and 67-72% (p<0.001) of the variance in knee extensor muscle strength at the sub-acute and chronic phases post-stroke, respectively. The results obtained via the MST were similar to those obtained using the hand-held dynamometer.
      Conclusion: Paretic knee extensor muscles strength, assessed using a MST or a hand-held dynamometer, indicates global lower-limb strength in individuals with a sub-acute or chronic stroke.
      (Copyright © 2018 Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia. Publicado por Elsevier Editora Ltda. All rights reserved.)
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    • Contributed Indexing:
      Keywords: Knee; Lower extremity; Muscle strength; Physical therapy; Rehabilitation; Stroke
    • Publication Date:
      Date Created: 20180826 Date Completed: 20191105 Latest Revision: 20200225
    • Publication Date:
      20240829
    • Accession Number:
      PMC6531629
    • Accession Number:
      10.1016/j.bjpt.2018.08.001
    • Accession Number:
      30143356