LI Diver
Contributor
Does anyone know exactly which muscles are the primary ones used in the common scuba kick (flutter kick?) ? I mean I know the quads are used to extend the lower legs and the femoral biceps (or hams) are used to bend the lower legs but how about the glutes and the abs for moving the upper legs? Which do the brunt of the work? Is there equal force on both the up and down stroke of the fin? And how about finning technique should I be bending my knees or kicking stiff legged?:06: