Solely training the glutes has an interesting effect on maximal strength retention. Nine years ago, strength coach Charles Poliquin relayed an anecdote where an Olympic lifter with knee problems increased his snatch strength by only performing lumberjacks (a glute exercise that is similar to a kettlebell swing, shown below) in THIS T-Nation article.
Last year, I mentioned HERE how my client Sammie hadn’t touched a weight in six months except for regularly performing 185-lb hip thrusts (fairly light for her), and upon her first workout back she managed to set PRs in her squat and deadlift (175 lb squat and 225 lb deadlift). Last year, I also mentioned HERE how hip thrusts led to the maintenance of glute size with my girlfriend Diana despite dropping out squats, deadlifts, and other movements. Recently, I wrote about daily glute activation workouts HERE. Over the past few months, my girlfriend Diana has relied on high rep, high density glute training multiple times per week since she hasn’t had access to a gym.