Ankles become loose from
the repetitive flexion and extension of kicking, hips gain greater range of motion from the undulations in butterfly and breastroke, and shoulders hyper - rotate from the repetitive circling of the arm in every stroke.
(Callaghan, J.P., and McGill, S.M. (2001) Intervertebral disc herniation: Studies on a porcine model exposed to highly
repetitive flexion / extension motion with compressive force.
Not exact matches
Spine - sparing techniques: hip hinge, rise from the floor, core strength, avoid rotation of rapid or
repetitive forward
flexion with load
The numerous ab crunches involved
repetitive lumbar
flexion.