Exercise Comparison
Ball Leg Curl vs Seated Leg Curl
Side-by-Side
Muscle Analysis
Shared
Only in Ball Leg Curl
Instructions
Ball Leg Curl
Begin on the floor laying on your back with your feet on top of the ball.
Position the ball so that when your legs are extended your ankles are on top of the ball. This will be your starting position.
Raise your hips off of the ground, keeping your weight on the shoulder blades and your feet.
Flex the knees, pulling the ball as close to you as you can, contracting the hamstrings.
After a brief pause, return to the starting position.
Seated Leg Curl
Adjust the machine lever to fit your height and sit on the machine with your back against the back support pad.
Place the back of lower leg on top of padded lever (just a few inches under the calves) and secure the lap pad against your thighs, just above the knees. Then grasp the side handles on the machine as you point your toes straight (or you can also use any of the other two stances) and ensure that the legs are fully straight right in front of you. This will be your starting position.
As you exhale, pull the machine lever as far as possible to the back of your thighs by flexing at the knees. Keep your torso stationary at all times. Hold the contracted position for a second.
Slowly return to the starting position as you breathe in.
Repeat for the recommended amount of repetitions.
Verdict
Both exercises target the hamstrings. Ball Leg Curl is a beginner exercise using exercise ball, while Seated Leg Curl is beginner and uses machine. Choose Ball Leg Curl if you have access to exercise ball, or Seated Leg Curl if you prefer machine.