How to Build Glutes Without Growing Legs

Look at a skeleton from behind and you will see the problem before anyone names it. The glute medius and minimus run almost vertically down the side of the hip. The glute max runs on a diagonal, lower and further back. Between them, where no muscle exists at all, is a hollow. That hollow is the "hip dip," the inward dent above the thigh that has launched a thousand Instagram workouts promising to smooth it away. According to Bret Contreras, the strength scientist who invented the barbell hip thrust and holds a PhD in sport science, there is no exercise that touches it, because there is nothing there to train (17:43).

"Hip dips are anatomical, an anatomical certainty." — Bret Contreras [17:43]

That single fact sets the tone for an hour of conversation between Contreras and Dr. Stephanie Estima, host of the podcast Better, that is really an argument against guesswork. Contreras has published more than 50 peer-reviewed studies on glute training (1:34), and the thread running through everything he says is that the body does not reward magical thinking. It rewards load, position, and time, applied in a sequence that respects what connective tissue can handle.

Take the hip thrust itself, the exercise that made Contreras famous. He lists three mistakes he sees constantly. The first is not the lifter's fault: many machines are built for tall frames, which forces shorter women into straighter legs and turns a glute exercise into a de facto hamstring exercise (6:29). On a barbell or Smith machine, where foot placement is adjustable, he wants the knees bent to roughly 90 degrees with the shins close to vertical at the top of the lift (6:48). The second mistake is stopping short of full hip extension. Some muscles grow best when they are worked in a stretched position, but Contreras says the glutes are the exception. Since other exercises already stretch them, the hip thrust should be reserved for training them in the shortened, locked-out position (7:05). The third mistake is sliding backward on the bench mid-set, which shortens the range of motion and quietly makes a heavy set easier than it looks (7:56).

The anatomy nobody can fix with effort

The glutes are also unusual in how much fat they store inside the muscle itself, not around it. Contreras says healthy people carry roughly 15 percent intramuscular fat in the glutes, but in unhealthy individuals that figure can run as high as 50 percent (19:06). That is fat inside the muscle tissue, not layered over it, and it partly explains why some people appear to have fuller glutes without much visible muscle definition. Contreras calls this phenomenon, when fat preferentially settles in the glutes during a weight gain, a "genetic BBL," something he has watched repeatedly in Latina clients in Florida whose waists stay narrow while weight goes straight to the hips (19:06).

None of this is incidental trivia. It sets up the episode's real argument, which is that a lot of women want a specific look, rounder glutes without bigger thighs, and that this is a legitimate training goal rather than a character flaw. Contreras wrote a blog post on the subject back in 2010 and has returned to it in videos and an e-book ever since, because, as he puts it, "it's a significant market" (32:09). He is also blunt about the backlash: "This pisses hardcore lifters off, and I don't know why, because we all have the right to train our body how we want" (32:32).

Training the glutes without the legs

The practical answer involves subtraction as much as addition. Contreras tells women who want this look to drop most vertical squat and hinge variations, the movements that load the quads, adductors, and hamstrings, and instead build real strength on horizontal lifts: barbell glute bridges, hip thrusts, and single-leg hip thrust variations (33:23). Layered on top of that is heavy volume of lateral work, cable kickbacks and hip abduction in both the frontal and transverse planes. Occasional light squats or Romanian deadlifts are fine, he says, as long as the lifter resists the urge to chase progressive overload on them (33:43).

This is where Contreras introduces a term worth remembering: "penalty-free volume." Heavy vertical lifts like squats and deadlifts are hardest in the stretched position, which is exactly where strain injuries and connective-tissue wear happen. Horizontal and lateral glute exercises work the muscle in its shortened, squeezed position instead, so they carry much less systemic cost.

"They tend to be easier on the body, easier to recover from at a muscular standpoint and on a systemic standpoint." — Bret Contreras [26:35]

Because of that lower cost, Contreras adds four to six sets of kickbacks and abduction onto the end of a session almost as a free bonus, extra stimulus without extra fatigue. It is also part of why he thinks women can train glutes three times a week without the burnout a man would experience doing three heavy squat days. He traces this recovery advantage to a mix of factors still being studied: estrogen's apparent protective effect against muscle damage, lower absolute strength producing less of the tissue "clamping" that worsens damage, and simple specialization, since women who skip dedicated arm, trap, and calf days free up recovery capacity for the glutes (53:42). In his own "Booty by Bret" program, a typical week nets nine sets each for the upper-body pressing and pulling muscles, the quads, and the hamstrings, against 36 sets for the glutes, a volume Contreras says his clients recover from without issue (55:37).

The structure that ties all of this together is a periodization system Contreras built after years of reading classic texts by Romanian-Canadian sport scientist Tudor Bompa and watching the rotating training cycles used by the late powerlifting coach Louie Simmons. Rather than chasing one lift year-round, which Contreras says is why so many powerlifters get hurt, he rotates the priority every four weeks across a five-month cycle: a strong-lifting month covering six main lifts, then dedicated months for squat and bench press, hip thrust and chin-up, deadlift and military press, and a final variety-focused glute month before the cycle starts over (68:04). Each month is designed so the joint or muscle group stressed in the previous block gets a break, knees recover during hip thrust month, the low back recovers during the glute variety month, and so on (68:24). Estima points out on air that this also suits connective tissue, which she notes takes roughly 12 to 21 weeks to adapt, far longer than the week or so muscle itself needs (71:52).

What makes the system sustainable, in Contreras's telling, is a simple asymmetry.

"It's hard to build, easy to maintain." — Bret Contreras [73:01]

That line is really the whole episode in miniature. Glutes, like most tissue, do not require constant maximal effort once they have been built. They require a plan that respects anatomy that cannot be changed, like the hollow behind a hip dip, and makes smart use of the anatomy that can, through load, position, and patience. Contreras adds one more plain warning against the social-media shortcuts that keep this subject so full of myths: "You can't just have a wimpy TheraBand and do light glute movements and develop glute mass" (12:23). The glutes, like everything else in the body, do not care how a post performs. They care what gets loaded, and for how long.