کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2713853 1145188 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reproducibility of isokinetic knee eccentric and concentric strength indices in asymptomatic young adults
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی طب مکمل و جایگزین
پیش نمایش صفحه اول مقاله
Reproducibility of isokinetic knee eccentric and concentric strength indices in asymptomatic young adults
چکیده انگلیسی

ObjectiveTo assess the reproducibility of isokinetic eccentric and concentric knee extension and flexion strength indices obtained at two different angular velocities.DesignCohort study.SettingUniversity human performance laboratory.Participants45 healthy physically active young adults (25 males).Main outcome measuresA non reciprocal protocol of concentric and eccentric contractions of the knee extensors and flexors was performed at 30 and 120°/s. Strength indices evaluated included peak moment; dynamic control ratios; and the difference between eccentric and concentric ratio at the two angular velocities.ResultsNo evidence for inter-test bias in any of the strength indices was noted. Measurement precision for peak moment, as quantified using ratio limits of agreement, suggest that scores may be expected to vary up to 15% for the knee extensors in both eccentric and concentric contraction modes. An error of up to 19% was calculated for the peak moment scores of the knee flexors. Intraclass correlation coefficients revealed fairly robust preservation of participants’ rank order for the majority of strength indices (>0.85).ConclusionIsokinetic-related indices of knee muscles performance enable an acceptable level of detection of expected changes in muscular strength parameters as a result of planned interventions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physical Therapy in Sport - Volume 13, Issue 3, August 2012, Pages 156–162
نویسندگان
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