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Post by admin on Mar 25, 2008 19:22:03 GMT -5
By 10 seconds sprint I mean generally a 100m/200m or 60m even, anything which gets you into max velocity.
The acceleration part of a sprint uses more front side of the body rather than the back side, the thigh flexors (hip flexors through all the way down the quadriceps) are doing a large portion of the work. Hams are certainly pushing, just not AS much.
Once one reaches max velocity (max speed) and comes up in full flight mode, the hip extensors (glutes/hams) are doing a lot of work.
The calves are doing a fair share throughout the entire sprint.
The arms stabilize the core in max velocity to give optimal stride length. The core provides power and allows for maintenance of stride length. Arms/core also give a lot of power to one's drive during acceleration.
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