Abstract
Using the Kin-Com (Chattecx Corp, Hixson, TN) isokinetic dynamometer, 20 university females (age = 21.6 ± 1.4 years, wt = 61.73 ± 7.3 kg, ht = 162.81 ± 5.8 cm) performed concentric and eccentric isokinetic contractions at nine different velocities. At each velocity, subjects performed two submaximal and one maximal concentric and eccentric familiarization contractions. Three alternating concentric and eccentric maximal contractions followed a 1-min rest between the familiarization and maximal contractions. One minute of rest was also provided between the test contractions and the next set of familiarization contractions. The peak torque (PT) and average torque (AT) for the first and ninth set of contractions were analyzed with separate repeated measures ANOVAs. The results demonstrated no significant differences for the interaction or for the test main effect for either PT or AT. This suggests that with appropriate rest intervals, as many as 96 submaximal and maximal concentric and eccentric contractions can be performed without fatigue affecting assessment of PT and AT.
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