How to do it
Roll the ball in slowly over three seconds to maximize hamstring tension.
- 1
Lie on your back with one foot on a stability ball and the other leg raised diagonally in the air.
- 2
Press down into the ball with your foot, lifting your hips off the ground.
- 3
Bend your knee and pull the ball towards your buttocks, keeping your hips elevated.
- 4
Extend your leg back to the starting position.
- 5
Repeat for the desired number of repetitions before switching legs.
Expert tip
Engage your core throughout the exercise to maintain balance and stability, maximizing the engagement of the target muscles.
Common mistakes
- ✕Hips sagging during the knee curl
- ✕Rolling the ball off-center to either side
- ✕Raised leg drifting toward the working leg