Correlations between knee extensor strength measured by a hand-held dynamometer and functional performance in patients with chronic stroke

Toshiki Kobayashi, Kam Lun Leung, Stephen W. Hutchins

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)


The aim of this study was to investigate the correlations between knee extensor strength of the affected lower limb in patients with chronic stroke and other functional performance tests. Ten subjects with post-stroke hemiparesis (10 males; 54.3 ± 8.4 years old), who suffered from stroke for more than three years (duration of 8.7 ± 4.5 years) participated in this study. Knee extensor strength was measured using a hand-held dynamometer. Gait velocity was assessed when performing a 5-metre walk (5MWV), and additional parameters [the 5-minute walking distance (5MWD), the functional reach test (FRT), a timed up-and-go test (TUG) and Berg balance scale (BBS)] were also assessed as parameters of functional performance in each subject. It was demonstrated that knee extensor strength had significant Pearson's r correlation with 5MV (r = 0.459, p< 0.05), FRT (r = 0.781, p< 0.01), TUG (r = -0.538, p< 0.01) and BBS (r = 0.758, p< 0.05). Therefore, knee extensor strength may be a moderate to good predictor of functional performance in patients with chronic stroke hemiparesis.
Original languageEnglish
Pages (from-to)33-37
Number of pages5
JournalIsokinetics and Exercise Science
Issue number1
Publication statusPublished - 24 Jan 2011


  • Function
  • gait
  • hand-held dynamometer
  • knee strength
  • stroke

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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