How to do: Lying Bent Leg Groin

Step-by-step instructions

1. 1Lie on your back with your knees bent and the soles of the feet pressed together. Have your partner hold your knees. This will be your starting position.
2. 2Attempt to squeeze your knees together, while your partner prevents any movement from occurring.
3. 3After 10-20 seconds, relax your muscles as your partner gently pushes your knees towards the floor. Be sure to inform your helper when the stretch is adequate to prevent injury or overstretching.

Photos & base instructions from the open-source Free Exercise DB (public domain).