Validity and reliability of lower limb isokinetic unilateral muscle performance measures
作者： Thomas W. Jones , Glyn Howatson , Mark Russell , Duncan N. French
DOI: 10.3233/IES-130502
关键词: Physical therapy 、 Lower limb 、 Voluntary contraction 、 Isokinetic dynamometer 、 Time to exhaustion 、 Reproducibility 、 Medicine 、 Validity 、 Leg extension 、 Physical medicine and rehabilitation 、 Repeatability
摘要: BACKGROUND: There are few standardised assessments of unilateral muscular endurance and little data examining the validity reproducibility isokinetic performance measures. OBJECTIVE: To examine an assessment lower limb performance. METHODS: Thirty individuals (15 trained 15 non-endurance trained) repeated a time to exhaustion (TTE) based protocol on separate days. Procedures were conducted dynamometer involved leg extension through 135° dominant leg. The TTE required participants perform extensions at 60% individual maximal voluntary contraction (MVC) until specified intensity frequency could not be maintained. RESULTS: reached significantly greater than their counterparts (P< 0.001). Systemic bias was small (< 5%) measures similar between trials. Test-retest statistics as follows; CV: 6.9%; LOA −170.1 139.5; RLOA: −0.320 ×/÷ 0.257. Relative tight trials (significant correlation P< 0.001). CONCLUSIONS: Data demonstrate test-retest aforementioned performance.
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