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Category

Injury prevention

Document Type

Paper

Abstract

The purpose of this study was to determine the relationship between hamstring flexibility and maximal strain in sprinting. Ten male and 10 female reactional athletes participated this study. Hamstring flexibility, isokinetic strength data, three-dimensional kinematic data in a hamstring isokinetic test, and kinematic data in a sprinting test were collected for each participant. The optimal hamstring muscle lengths and maximal strains of hamstring muscle-tendon units in sprinting were determined for each participant. Maximal strains of hamstring muscle-tendon units were negatively correlated to hamstring flexibility. Maximal strains of biceps long head and semitendinosus muscle-tendon units were significantly greater than that of semimembranosus. Hamstring flexibility is a factor that significantly affect maximal strain of hamstring muscle-tendon units in sprinting.

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