Quadriceps wall stretch. From a standing
position near a wall for support, subjects bent
one knee and brought heel towards buttocks,
holding the foot with one hand.
Calf stretch. From a standing position facing
a wall, subjects placed their hands on the
wall at chest level. They put the left foot
slightly behind them, keeping heel on the
floor. Then they leaned forward bending
slightly the right knee and keeping the left
leg straight with the heel on the floor.