Glutes are another great example of a muscle people don't know how to use. Ask your average Joe to squat, and you will see him squat with his knees waaaaaaaay over his toes, and rely almost solely on his quads. Ask him to sit back on his heels, and he'll probably fall over.Glute bridges and variation can allow trainees to activate a muscle group to create a desired movement (hop extension) without the complexity or stress of a compound movement such as a squat. When I came to India I noticed all the weight lifters, and track and field athletes had HUGE quads. As soon as I watched them squat it was no surprise that it was a completely quad dominant movement. First line of business was bridges, and box squats; 2 great glute activation and training exercises. I'm about to rant about box squats being improperly executed in 99% of all the vides I have ever seen, but... another post maybe. Isolation training should not be the primary function of your training. It should compliment your training, and serve as an "accessory" to your superior compound and kinetic chain movements.You're not a bodybuilder so remember your reason for isolation muscle groups; to make the entire chain more explosive. You always need to include the exact movement in your training. If you do more isolation work then the actual movement your coordination may suffer, and performance may drop. So although you will hear on forums everywhere that anything other than a compound or kinetic chain movement makes you a loser, you can rest assured that proper inclusion of isolation movements can aid in creating a stronger kinetic chain and more explosive and injury resistant athlete.This is a classic core exercise. To begin, sit on the yoga ball with your feet flat on the floor about hip width apart. Tighten your abdominal muscles and start leaning backwards until you feel them working. Take between several deep breaths while holding this position. Return to starting position. Do 2-3 sets of 12-16 reps. https://wedoreviewforyou.com/mzf-group-review/