Effectiveness of Two Stretching Techniques on Healthy Volunteers With Shortened Hamstrings

Electrotherapy equipment will be used, choosing an interferential current through bipolar application,with a frequency of 4 kHz and a frequency modulation amplitude of 100 Hz.

Hold-relax technique that involves lengthening the muscle to the point of limitation, at which point the individual performs an isometric contraction for up to 10 s, followed by a passive movement of the limb into the new end-range.