Good Position For Abs

Action on lumbar curvature of the psoas muscle Psoas muscles have other functions than to be powerful flexors of hip. They put the lumbar spine in lordosis, which increases the arch. I read a Frederic Delavier’s book « Strength Training Anatomy »…

Knee Instability

I read a Frederic Delavier’s book « Strength Training Anatomy » and I learned good stuff. When the knee extended, external and internal lateral ligaments stretched and prevent rotation of the joint. Standing on one foot, knee wedged in extension, which means…

Seated Calf Raises

I read a Frederic Delavier’s book « Strength Training Anatomy » and I learned good stuff. Sitting on the machine with the bottom of your thighs under the pads. Your forefoot on the step with your ankles in passive flexion : Do an…

One Leg Toe Raises

I read a Frederic Delavier’s book « Strength Training Anatomy » and I learned good stuff. Standing on one leg with your forefeet on a step. One hand holds a dumbbell and the other is placed on a support to have a…