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A pretty straightforward study from researchers in Malaysia, just posted in Journal of Strength and Conditioning Research. They took 18 professional soccer players and analyzed their kick on three separate days, after a warm-up that incorporated static stretching, dynamic stretching, or no stretching. Their range of motion during the kick was 1.67 degrees worse after static stretching and 8.38 degrees better after dynamic stretching compared to the no-stretch condition, a difference that was significant with p<0.01. Since higher range of motion correlates with greater angular velocity in the kick, the researchers conclude that dynamic stretching is better than static stretching for soccer players.
Here’s how they describe the dynamic stretches used:
Subjects performed the dynamic stretches… for 30 seconds at a rate of approximately 1 stretch cycle per second… The dynamic stretches used involve the Quadriceps femoris (quadriceps); Lateral lunge (adductors); Hip extensors (gluteals); Hamstrings (hamstrings); and Plantar flexors (gastrocnemius) described in Yamaguchi and Ishii.
Err, thanks for that. Fortunately, Yamaguchi and Ishii actually have a pretty helpful description: