Objective: This study aimed to investigate the acute effects of a short-duration isolated static stretching or combined with dynamic plyometric exercises on the performance of some anaerobic parameters (strength, jumping and sprinting). Methods: During three distinct sessions and after a standardized warm-up, 15 participants randomly performed static stretching exercises alone, static stretching combined with plyometric exercises and no stretch. Total stretch duration was 20 seconds long per muscle group (quadriceps, hamstrings and calf muscles). Tests included maximal quadriceps muscle strength, countermovement jumps and 15 m sprints. Results: Whatever the condition, maximal strength and sprints were unaltered whereas the vertical jump height significantly decreased (P < 0.05). We conclude that isolated static stretching or combined with plyometric exercises, even with short-duration, were not efficient for strength, jump ability and sprint improvements and should be excluded from warm-up sessions.
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