As you consider using a variety of moves, you also need to think about the actions and function of the glute max and even what area of the glute max you want to work.
The glute max is our primary hip extensor and also a strong external rotator of our hip. It also posteriorly tilts the pelvis, which is why cueing a posterior pelvic tilt during certain glute moves can be key for higher glute engagement.
A study in 2010 found that the posterior pelvic tilt effectively increased oblique and gluteus maximus recruitment, and reduced lumbar extensor recruitment. The gluteus maximus and obliques are often termed phasic (have a propensity toward inhibition, lengthening, and/or weakness), and the lumbar extensors are often termed tonic (have a propensity toward over-activity, shortening, and trigger point development).
Cueing the posterior pelvic tilt to engage your glutes can help clients with postural dysfunction. A posterior pelvic tilt is easily taught during a quadruped movement or even a bridge and may be a way to improve recruitment patterns in those individuals with low back pain, and or an anterior pelvic tilt. (1)
What does this mean!?
If you have postural dysfunction aka struggle to engage your glutes and let your lower back take over during movements, try cueing this action!
The glute max is also so essential to train properly because of the role it plays, directly and indirectly, in stabilizing the hip, knee, SI joint and even lumbar spine.
A weak glute max means instability and therefore INJURY!
A 2005 study found that knee motion and knee loading during a landing task are predictors of ACL injury risk in female athletes. (2)
AKA you need to train your glute max as it helps to prevent unwanted hip adduction, internal rotation and flexion (aka knee valgus) when you land or decelerate.
But when you train your glute max, while many moves work both the upper and lower fibers of the muscle, you do want to note that these areas can be recruited to different degrees with different movements with the upper fibers being more involved in hip abduction and hip external rotation found a 2016 study. (3)
Not only can this help you further prevent injury by targeting weak areas, but if you’ve ever thought you wanted to work your upper or lower glute max more for aesthetic reasons, aka to build that shelf, you can!
Because of all of these different functions and actions, it is important you do activation moves to improve your mind-body connection and build stability while also using heavier loads to challenge this very strong muscle.
And the moves you choose to do can't just be in one plane of motion to work all of the glute max fibers or, for that matter, even strengthen your glute medius!