Hamstring Curl w/ stability ball
Often enough we do not focus on our hamstrings. Quads typically get the brunt of our leg workouts. Just because you can’t always see the hamstrings do not always avoid them. In fact, unbalanced leg training will certainly lead to injuries. This is one of my favorite hamstring exercises.
Start out by lying on your back. Place your heels directly on top of a stability ball (swiss ball). With your feet hip width apart and arms spread to the side for balance, pick your hips up off the floor. This should just leave your upper back, shoulders, and head rested on the floor with your body making a straight line from shoulders to heals with no sag.
Once you are balanced with hips in the air roll the stability ball towards your body with your heels until the bottom of your feet are on the ball and your knees are bent.
Squeeze the back of your thighs and roll the ball back out until the body is straight again. Do not drop the hips back to the floor. That is one completed repetition. Try 2-3 sets of 10-15 reps.
The hamstring curl also activates the glutes, calves, and core.