Within-day and between-days reproducibility of isokinetic parameters of knee, trunk and shoulder movements

Sam D. Blacker, Joanne L. Fallowfield, James L.J. Bilzon, Mark E.T. Willems
2010 Isokinetics and exercise science  
The purpose of this study was to examine the within-day and between-days reproducibility of isokinetic parameters of knee, shoulder and trunk movements. Ten healthy males (age 30 ± 8 years, height 1.79 ± 0.05 m, body mass 79.4 ± 8.3 kg) performed isokinetic concentric contractions (knee: 60 and 180 • /s; shoulder: 60 and 180 • /s: and; trunk: 15 and 60 • /s) at 0 (baseline), 2, 24, 48 and 72 hours. Reproducibility of the baseline peak moment, mean peak moment and maximum work was assessed using
more » ... was assessed using Bland and Altman limits of agreement and pre-planned paired t-tests (P < 0.05). Peak moment of knee, trunk and shoulder extensors at low velocities had highest reproducibility within and between days over a time period of 3 days. Peak moment at high and low velocities of knee extensors was consistently the most reliable parameter over a 3 day period. It is concluded that isokinetic parameters can be reproducibly measured in a combined session of knee, shoulder and trunk movements in healthy male subjects over a 3-day time period.
doi:10.3233/ies-2010-0367 fatcat:23ydlv77gzeqjmgubnltqymgra