When running the hamstrings act eccentrically to slow down the knee extension motion. Hamstring strains are common in individuals with chronically tight hamstrings or who do not warm-up thoroughly.
Origin : Ischial tuberosity.
Insertion : Upper medial surface of the tibia.
Actions : Hip extension.
Internal rotation of the hip when the knee is flexed.
Innervation : Tibial part of the sciatic nerve.
Daily uses : Bending the knee to step over something.
Example strengthening exercises : Knee curl with resistance band.
Example stretches : Sitting hamstring stretch.
Standing hamstring stretch.