The optimal duration of high-intensity static stretching in hamstrings.
Kosuke TakeuchiMasatoshi NakamuraPublished in: PloS one (2020)
The results suggested that muscle-tendon unit stiffness decreased regardless of duration of high-intensity static stretching. However, peak torque of isokinetic knee flexion decreased after 10 seconds of high-intensity static stretching, though it was no change after for more than 15 seconds of stretching.