JC's Musings

Arm Loading and Sprinting

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Note the wearable resistance (WR) on the arms. Do you think just putting it on can make you faster? What about longitudinal training adaptations? Is it better for acceleration or max velocity adaptation?

Whoa, we are getting ahead of ourselves and first it might be smart to establish how important the arms are during sprint running. This is a contentious topic among sprint coaches and in the published literature, with general agreement that the arms do counterbalance the rotary momentum of the legs during sprint running, however, after that the debate begins due to the purported cancelling effects of simultaneous forward-backward action of the contralateral arms whilst sprinting upright.

However, the relative momentum of the horizontal component of both arms may not be cancelled during the start and early acceleration phase, and moreover, the arms may contribute up to 10% of the total vertical propulsive forces an athlete is capable of applying to the ground highlighting the importance of an efficient arm action ( https://lnkd.in/dtEzKNc)

So back to the start. Is arm loaded WR of any utility for speed development? More to come.