Objective:

To determine the effects of static stretching in hamstring musculature during warm-up on jumping power.

Materials and method:

80 indoor soccer players take part in this study, distributed in 2 groups. The first one warm-up and static stretching in hamstring musculature, and the second one did only precompetitive exercises. Squat Jump and Counter Movement Jump tests were used to evaluate power.

Results:

A descend in high, velocity, and fly time, at the end and after 5 minutes, were found after the static stretching. At 10 minutes (p < 0,05), there was a recovery at those values in the Counter Movement Jump test, while in Squad Jump test did not have statistically significant changes (p >= 0,05).

Conclusion:

Static stretching during warm-up produces a descend in jump power during the first minutes.

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