Article

The aim of this study was to test the hypothesis that vibration
treatment reduces delayed-onset muscle soreness and swelling and enhances
recovery of muscle function after eccentric exercise. DESIGN: : A randomized
crossover design was used. Fifteen young men performed ten sets of six maximal
eccentric contractions of the elbow flexors with the right arm for one occasion
and the left arm for the other occasion separated by 4 wks. One arm received a
30-min vibration treatment at 30 mins after and 1, 2, 3, and 4 days after the
exercise (treatment group), and the other arm did not receive any treatment
(control group). The order of the treatment and control conditions and the use of
the dominant and nondominant arms were counterbalanced among subjects. Changes in
indirect markers of muscle damage were compared between arms by a two-way
repeated-measures analysis of variance. RESULTS: : Compared with the control
group, the treatment group showed significantly (P < 0.05) less development and
faster reduction in delayed-onset muscle soreness at 2 to 5 days after exercise.
The recovery of range of motion was significantly (P < 0.05) faster for the
treatment than for the control group. However, no significant effects on the
recovery of muscle strength and serum creatine kinase activity were evident.
Immediately after the vibration treatment, a significant (P < 0.05) decrease in
the magnitude of delayed-onset muscle soreness and muscle strength and an
increase in pressure pain threshold and range of motion were found. CONCLUSIONS:
: These results showed that the vibration treatment was effective for attenuation
of delayed-onset muscle soreness and recovery of range of motion after strenuous
eccentric exercise but did not affect swelling, recovery of muscle strength, and
serum creatine kinase activity.

Langue : ANGLAIS