Rolling directly over the back of the knee
Avoid the popliteal fossa; stop an inch above the knee crease.
Overactive muscles
HamstringsGastrocnemius
Corrective work
Foam RollHamstrings↗StretchHamstring stretch with strap↗Avoid the popliteal fossa; stop an inch above the knee crease.
Sit tall; spinal collapse reduces the hamstring contact with the roller.