This exercise works your gluteus medius and minimus.
- Start seated on a low bench, chair, or sturdy stool with your feet flat on the floor and your knees bent. If you have a resistance band, place it above your knees or, for the most resistance, around your upper shins and just below your knees. (To make it easier, put the band closer to your hips. You can also do this move without a band.) Place your hands on either side of your hips for balance.
- Pull your knees apart, moving slowly and with control and pulling against the resistance from the band. Keep your core braced and back flat as you move, squeezing your glutes.
- Slowly bring your legs back together to return to the starting position. Again, move with control and resist the band so it's not snapping your legs back for you.
- This counts as one rep.