Strong inner thighs are important for providing support and stability to the hips and the knees joints. I love this exercise because it allows for isolating and strengthening the inner thigh muscles without the added weight of a standing exercise (which may put extra strain on the hips and/or low-back). If you do have any injuries, strain or weaknesses ( hips, knees, low back) this is a great option for a modification for thigh work. This move can also be done without a resistance band, just focusing on engaging (moving) the inner thigh muscles.
Lie down on the floor with knees bent and feet flat. Wrap the band around the ball of your right foot; extend the right leg straight up and about 2 inches out to the side (to the right of the right hip); flex the right foot. Slightly externally rotate the right leg so that the right inner thigh is facing you.
With your left hand, grab firmly onto both sides of the band, pulling the band across the body toward the left hip. Hold firmly onto the band to create your desired level of resistance.
Move the right leg out to the side (to the right) an inch and then back toward the midline an inch. You should feel the right inner thigh engage. Repeat 10-20 times.
Take a slight bend to the right knee and then re-straighten the right leg pressing into the right heel. Repeat 10 to 20 times.
Repeat the entire sequence on the left leg.