Creating felt awareness for hamstring activity in a position of length.

Since the hamstrings are a group of bi-articular muscles, biomechanically speaking they like to work at a particular length. This is apparent when analyzing joint position of hip and knee during the gait cycle. Furthermore, this muscle group shows a relatively high content of connective tissue.

These particularities account for the hamstrings to preferably work in an isometric fashion, especially in running. Max isometric strength then enables the surrounding fascia to better absorb, transmit and release kinetic energy.

To ensure proper execution of this exercise try to maintain a neutral spine. The lumbar portion in particular must not be overstrained into hyperextension. Trunk erection happens mainly due to lower limb activity and not via erector spinae contraction.

Hamstring activity could be triggered by gently pulling the towards the butt.