Analysis of the balancing ability during wheelie movements

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The purpose of this study was to analyze (1) the relationship between balancing ability during wheelie movements and static muscle strengths of upper arm, and (2) the effects of the postural reflexes (labyrinth reflex, asymmetric tonic neck reflex, lumbar reflex) and the stretch reflexes at biceps brachii muscles or triceps brachii muscles towards balancing ability during wheelie movements. Followings were found : (1) static muscle strengths of shoulder muscles were very important to keep the balance during wheelie movements ; (2) In order to control the extension of lower limbs, it was very important to utilize the effects of both labyrinth reflex and asymmetric tonic neck reflex.