90/90 Hamstring

How to do it

1. 01Lie on your back, with one leg extended straight out.
2. 02With the other leg, bend the hip and knee to 90 degrees. You may brace your leg with your hands if necessary. This will be your starting position.
3. 03Extend your leg straight into the air, pausing briefly at the top. Return the leg to the starting position.
4. 04Repeat for 10-20 repetitions, and then switch to the other leg.

Alternatives & substitutions

Same movement pattern, same primary muscles — swap by what you have.