One Leg Extension (on stability ball)
Expert Advice
Maintain a neutral spine and avoid arching your back by engaging your core throughout the movement.
How-to-do Steps
- Lie on your back with your calves on top of a stability ball.
- Extend one leg towards the ceiling.
- Press down into the ball with your other leg, lifting your hips off the floor.
- Hold for a moment at the top, then slowly lower your hips back down.
- Repeat for the desired number of reps before switching legs.
Details
Primary
Hamstrings60%
Secondary
Calves20%
Quads20%
Equipment
Stability ball
Exercise Type
Strength
