Glute Bridges Off Box
To do the Glute Bridge Off Box, place your heels up on the box or right on the edge. You want your knees bent to about 90 degrees or your butt to be even closer to the box. Do not let your butt get too far away from the box. You may need to play around with exact positioning so that you feel your glutes working and not your low back or hamstrings taking over.
Bend your arms to 90 degrees with just your upper arms on the ground.
Then driving through your heels on top of the box, press your hips up as high as you can. Squeeze your glutes and keep your core tight as you bridge up so that you don’t hyperextend your low back.
Also, do not let your knees fall in or out as you lift up. Keep your knees in line with your hips and ankles.
Hold for a second or two and then lower down.
This move can also be made harder by slowing down the tempo. You can also progress it by doing a Single Leg Variation.