Article

The 8-repetition maximum test has the potential to be a feasible, cost-effective
method of measuring muscle strength for clinicians.
The purpose of this study was
to investigate the concurrent validity of the 8-repetition maximum test in the
measurement of muscle strength by comparing the 8-repetition maximum test to the
gold standard of isokinetic dynamometry. Thirty participants (15 males and 15
females, mean age = 23.2 years [standard deviation = 1.0]) underwent 8-repetition
maximum testing and isokinetic dynamometry testing of the knee extensors (at 60,
120, and 240 degrees per second) on two separate sessions with 2-3 days between
each mode of testing. Linear regression was used to assess the validity by
comparing the findings between 8-repetition maximum testing and isokinetic
dynamometry testing. Significant correlations were found between the 8-repetition
maximum and isokinetic dynamometry peak torque at each testing velocity (r =
0.71-0.85). The highest correlations were between the 8-repetition maximum and
isokinetic dynamometry peak torques at 60 (r = 0.85) and 120 (r = 0.85) degrees
per second. The findings of this study provide supportive evidence for the use of
8-repetition maximum testing as a valid, alternative method for measuring muscle strength.

Langue : ANGLAIS