drtbear1967
Musclechemistry Board Certified Member
themusclephd
Today’s topic in The Muscle PhD Academy addresses variations of the leg extensions. Turning the toes in activates the tear drop / inner quads (vastus medialis) because this muscles job is to turn the toes in (internal rotation). The vastus medialis’ (outer quad sweep) muscle fibers run in a slanted / oblique orientation on the outer leg. Turning the toes in takes slack out of the muscle and automatically increases tension even before you contract the muscle; this elevates activation. The mid quads (rectus femoris) originates in the front of the hip, but it does so slightly towards the inner part of the thigh. Thus, by turning your toes out you take the slack out of the muscle and increase its ability to contract during leg extensions.
Today’s topic in The Muscle PhD Academy addresses variations of the leg extensions. Turning the toes in activates the tear drop / inner quads (vastus medialis) because this muscles job is to turn the toes in (internal rotation). The vastus medialis’ (outer quad sweep) muscle fibers run in a slanted / oblique orientation on the outer leg. Turning the toes in takes slack out of the muscle and automatically increases tension even before you contract the muscle; this elevates activation. The mid quads (rectus femoris) originates in the front of the hip, but it does so slightly towards the inner part of the thigh. Thus, by turning your toes out you take the slack out of the muscle and increase its ability to contract during leg extensions.
