Lie on your back and bend the knees to bring the feet flat on the floor close to the glutes. Squeeze a medicine ball between the knees throughout the exercise.
 
Push the heels through the floor and keep the abs tight to lift the hips as high as possible while squeezing the ball between the knees maximally. Lower under control and repeat, or hold in the top position for 10-30 seconds.
 
Purpose
The iso adduction glute bridge is simple exercise to address multiple aspects of hip stability and include the often neglected adductors.
 
Programming
Iso adduction glute bridges can be done for 1-3 sets of 8-15 reps or 10-30 second isometric holds as part of a warm-up.

Variations
The iso adduction glute bridge can be done with either the upper back or feet elevated on a bench to increase range of motion and difficulty.