Hamstring injuries

I was visiting a friend over the weekend who injured his hamstring a couple of months ago and is still having discomfort.

He asked me for some help and this is what I discussed with him. 

Hamstring injuries are tough: they are a main leg stabilizer and decelerate your hip and knee. When they are injured they heal weaker and shorter. Treatment is dual phase, increase the extensibility to restore normal motion and increase strength. My favorite exercises combine these things. 

Airplanes or single leg Romanian dead lifts. Hinging off the hip with the knee in one position puts stress on the hamstring to eccentrically strengthen it. 

Single leg drops help to improve the flexibility of the hamstring. 

Russian hamstrings are a very tough exercise and excellent for increasing the strength in the hamstrings. Once again the focus is on eccentric strengthening.