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How to Grow Your Glutes: Hip Thrust vs. Squat, the Sleepy-Glutes Myth, and What Actually Builds the Backside

By RightRep AI Assistant · · 13 min read

Ask the internet how to grow your glutes and you'll be handed one of two religions. Camp one treats the hip thrust as a sacrament — special bars, special programs, glute finishesers tacked onto the end of every session. Camp two hasn't changed a powerlifting template since 2015 and insists squats and deadlifts already cover everything south of the belt. Meanwhile this library has settled every general dose question — how many sets, how often, which rep range, how close to failure — but never the muscle-specific one: what does it actually take to grow a glute?

The research answers in three parts. First — the exercise menu barely matters when effort and volume are equal: the head-to-head trials found similar glute growth from squats and hip thrusts despite a two-to-three-fold EMG gap in the hip thrust's favor. Second — what does matter is range, effort, volume, and the muscles nobody trains: squat depth measurably changes glute growth, and the side-aisle glute muscles barely grow from big lifts alone. Third — glutes stall for predictable reasons: compressed ranges, junk volume, zero abduction work, and the "activation" rituals that feel like programming but aren't. Every number below was read directly from its source — each abstract checked against each claim before it shipped.

The muscle you're actually trying to grow

"Glutes" is three muscles doing different jobs. The gluteus maximus — the big slab you sit on and the one every hip-dominant exercise targets — extends the hip. The gluteus medius and the deeper minimus sit on the side of your pelvis and hold it level every time you stand on one leg. They are the muscles that stop the hip drop, not the ones that fill jeans.

Your glute maximus is also a loading gauge. When researchers scanned the hips of 91 female athletes and 20 active controls, the cross-sectional area of the gluteus maximus sorted itself by the demands of the sport: high-impact jumpers, odd-impact soccer and squash players, and high-magnitude powerlifters all carried more glute than the controls — while repetitive-impact runners and swimmers didn't stand out [9]. The glute grows to the hip-extension demands you actually impose on it, which is exactly why gym training works on it — and why "toning" it with nothing is a myth this library has already buried.

How EMG built the hip-thrust religion

The hip thrust's rise ran on electricity. When thirteen trained women did estimated 10RMs of both lifts, the barbell hip thrust lit the gluteus maximus up far beyond the back squat: mean upper-glute activity of 69.5% vs 29.4% of maximal voluntary contraction, peaks of 172% vs 84.9%, and the lower glute showing the same pattern at 86.8% vs 45.4% [4]. Hamstrings tripled their squat activity too (40.8% vs 14.9%), while the quadriceps stayed equal — the hip thrust really is a posterior-chain-focused lift, electrically speaking.

A systematic review of sixteen studies confirmed the broader menu: very high gluteus maximus activation (>60% MVIC) belongs to a long list — the step-up family at the top, then hex-bar deadlifts, every hip-thrust variant, belt squats, split squats, lunges, conventional deadlifts, band hip thrusts [5]. On paper, exercise selection looked like the whole game: pick the exercise with the biggest glute signal, get the biggest glute.

That's a reasonable hypothesis. It's just not what happened when anyone measured growth.

What happened when they actually measured growth

The definitive test came from Auburn University: 34 untrained participants randomized to nine weeks of volume-equated training — the same number of sets per session, hip thrusts only or back squats only — with glute growth measured by MRI at three sites along the muscle [1]. The result that ended the argument: glute growth was statistically indistinguishable between the groups. Point estimates at the lower, mid and upper glute all leaned toward the hip thrust by 0.5–1.6 cm², but every confidence interval crossed zero. The two-to-three-fold EMG advantage bought, at most, a fraction of a centimeter that the trial couldn't confirm.

Two details in that trial matter more than the headline. First, strength went where the practice went: the squat group added 14 kg to their squat 3RM, the hip-thrust group added 26 kg to their hip-thrust 3RM, and the deadlift — which nobody trained — improved identically in both groups [1]. You get transfer, just not magic. Second, and quieter: the gluteus medius and minimus grew little-to-none in both groups [1]. Neither big lift touches the side aisle. The squat group did win something the hip-thrust group didn't: quadriceps (+3.6 cm²) and adductors (+2.5 cm²) — the same glute stimulus plus a thigh's worth of extra muscle [1].

A 2025 meta-analysis of twelve trials closes the case: resistance training has a moderate effect on gluteus maximus hypertrophy (SMD 0.71), single-exercise and multi-exercise programs work about equally well (SMD 0.74 vs 0.68), and while the barbell hip thrust is the pick when the glute is the only muscle you care about, parallel- and full-depth squats, leg presses and even kneeling hip extensions all grow it too [2]. The honest summary: exercise selection is a tool for allocation, not a growth switch.

Depth is the glute variable you're controlling anyway

If exercise choice is overrated, range is the opposite. When one lab randomized lifters to ten weeks of squats at two depths — full squats to 140° of knee flexion versus half squats to 90° — the MRI told the story muscle by muscle: the gluteus maximus grew 6.7% on full squats versus 2.2% on half squats, and the hip adductors went 6.2% versus 2.7% [3]. The half-squat group even loaded the bar heavier; they still grew less where it counts. The glute is stretched hard at the bottom of a deep squat — a position a hip thrust never visits and a half squat rushes through — and the stretched-position advantage is the same pattern this library's range-of-motion evidence shows across muscles.

Practical translation: a full-depth squat is already a serious glute exercise. Cutting depth to move more weight is trading glute and adductor stimulus for ego kilograms. And if you can't currently reach depth, that's mobility to build, not a reason to permanently outsource your glutes to a shorter-range machine move — the machines-vs-free-weights verdict applies here too: both grow muscle when effort and range are real.

Don't forget the side aisle

Here's the part most glute programs get backwards. The muscle that shapes the upper-side of the hip — the gluteus medius — is trained best by exactly the exercises that look too easy to work: in a fine-wire EMG study of eleven exercises, the best gluteal-to-TFL ratios belonged to the clamshell (index 115), sidestep band walks (64), unilateral bridge (59) and quadruped hip extensions (50) [7]. And single-leg strength work pulls double duty: among the single-leg squat, forward lunge and lateral step-up, the single-leg (monopodal) squat activated every measured muscle the most, with the gluteus medius running above the maximus in all three drills [6].

The growth trials agree that this work earns its slot. In the Auburn trial, neither squats nor hip thrusts produced meaningful medius or minimus growth [1]. And when clinicians put hip-pain patients through twelve weeks of deliberately targeted gluteal training against a sham intervention, the deep gluteus minimus grew (+0.06 cm³/kg per body mass, both limbs) while it stayed flat in the sham arm — direct, focused work reaching the muscle the big lifts miss [10].

So the glute program writes itself in two halves: a loaded hip-extension pattern for the maximus — deep squat, hinge, hip thrust, lunge or step-up family, any of them [2][5] — plus a few hard sets of abduction/single-leg work for the medius nobody else is feeding. How many exercises to bolt on top is the container question the exercise-count guide already answered — the set count is the dose, the exercise count is the delivery.

The sleepy-glutes audit

"But my glutes are asleep from sitting — I need to wake them up first." This is the most expensive warm-up myth in the gym. The idea ("gluteal amnesia," "dead butt syndrome") holds that hours in a chair neurally switch the glute off, and that banded walks and glute bridges before training reactivate it, unlocking both growth and performance.

The term doesn't exist in the research literature — but the activation ritual itself has been tested. Seventeen professional rugby players performed heavy hang pulls after either a control warm-up or a gluteal-activation warm-up, with force plates and EMG watching: no difference in ground reaction forces, no difference in estimated gluteal force output, and peak gluteus maximus EMG actually slightly lower after the activation protocol [8]. Activation drills did not unlock anything.

What those drills genuinely do is what any warm-up cue does: raise temperature, rehearse the pattern, and direct attention to the working muscle — and attention does shift which muscles a compound emphasizes, as the mind-muscle evidence shows. Ten minutes of clams before squatting is a fine cue ritual. It is not a growth mechanism, and it doesn't need to be. If your glutes are "asleep," the cure is load and effort over months [9], not a wake-up call.

Why your glutes aren't growing

With the trials flat, the usual suspects for a stalled backside are all fixable:

  1. Compressed range. Half squats, mini-hinge deadlifts, quarter lunges. Depth is the free glute stimulus [3].
  2. Effort by vibes. Sets that stop when it burns are sets that under-stimulate every muscle, glutes included — the reps-in-reserve rule is the same here as anywhere.
  3. Volume below the floor. One glute-ish exercise per week is a maintenance dose, not a growth dose — the weekly-set arithmetic doesn't exempt the glute.
  4. Zero side-aisle work. If nothing ever abducts or balances, the medius and minimus stay untouched [1][7].
  5. Glutes every day. The Brazilian gym floor rule — treinar glúteo todo dia — is the same overreach as any daily muscle specialization: glutes recover like every other muscle, and the train-every-day verdict plus frequency evidence both point at roughly 2–3 hard exposures a week, not seven.

A week that actually builds glutes

Anchor: two lower-body days. Each day, one loaded hip-extension pattern taken deep and hard — a full-depth squat or lunge family on one day, a hinge or hip thrust on the other — in a rep range you can progress, adding load or reps per the overload rules. Then 2–4 sets of side-aisle work: heavy cable or band abduction, sidesteps, or single-leg strength. That's it. No daily sessions, no finisher rituals, no EMG-chasing — the trials say the growth is in the dose, the depth and the effort [1][2][3].

How RightRep fits into this

The glute question that actually decides your results isn't "which exercise" — it's "did this week's sets get harder than last week's," and that's a tracking question. RightRep logs every session and scores every set — the rep score tells you whether your squats and thrusts are genuinely progressive or just present — and the exercise library already covers the whole glute menu from hip thrusts to step-ups to abductions. The people whose glutes grow are the ones whose training log proves the depth, the effort and the weekly dose. Open the web app, log two honest weeks, and let the trendline — not the finisher — tell you what your training is doing.

The bottom line

How do you grow your glutes? With volume-equated effort, squats and hip thrusts grow the gluteus maximus about the same [1][2] — the 2–3× EMG gap [4] never converted into extra muscle. What moves the needle: full range [3], real effort [2], enough weekly sets, and side-aisle work for a medius the big lifts measurably skip [1][7]. Sleepy-glute wake-ups don't unlock performance [8], glutes respond to the loading you actually impose [9], and "every day" is a folk rule, not a program. Pick one hard hip-extension pattern, go deep, add a few abduction sets, and let the log do the arguing. Start at rightrep.app — and may the trendline be ever in your favor.

This post was written by the RightRep AI Assistant — the same AI that counts and scores your reps at rightrep.app.

Sources

  1. Plotkin DL, Rodas MA, Vigotsky AD, McIntosh MC, Breeze E, Ubrik R, Robitzsch C, Agyin-Birikorang A, Mattingly ML, Michel JM, Kontos NJ, Lennon S, Frugé AD, Wilburn CM, Weimar WH, Bashir A, Beyers RJ, Henselmans M, Contreras BM, Roberts MD. Hip thrust and back squat training elicit similar gluteus muscle hypertrophy and transfer similarly to the deadlift. Frontiers in Physiology, 2023;14:1279170. pubmed.ncbi.nlm.nih.gov
  2. Krause Neto W, Krause TLV, Gama EF. The impact of resistance training on gluteus maximus hypertrophy: a systematic review and meta-analysis. Frontiers in Physiology, 2025;16:1542334. pubmed.ncbi.nlm.nih.gov
  3. Kubo K, Ikebukuro T, Yata H. Effects of squat training with different depths on lower limb muscle volumes. European Journal of Applied Physiology, 2019;119:1933–1942. pubmed.ncbi.nlm.nih.gov
  4. Contreras B, Vigotsky AD, Schoenfeld BJ, Beardsley C, Cronin J. A Comparison of Gluteus Maximus, Biceps Femoris, and Vastus Lateralis Electromyographic Activity in the Back Squat and Barbell Hip Thrust Exercises. Journal of Applied Biomechanics, 2015;31(6):452–458. pubmed.ncbi.nlm.nih.gov
  5. Neto WK, Soares EG, Vieira TL, Aguiar R, Chola TA, Sampaio VL, Gama EF. Gluteus Maximus Activation during Common Strength and Hypertrophy Exercises: A Systematic Review. Journal of Sports Science and Medicine, 2020;19(1):195–203. pubmed.ncbi.nlm.nih.gov
  6. Muyor JM, Martín-Fuentes I, Rodríguez-Ridao D, Antequera-Vique JA. Electromyographic activity in the gluteus medius, gluteus maximus, biceps femoris, vastus lateralis, vastus medialis and rectus femoris during the Monopodal Squat, Forward Lunge and Lateral Step-Up exercises. PLoS One, 2020;15(4):e0230841. pubmed.ncbi.nlm.nih.gov
  7. Selkowitz DM, Beneck GJ, Powers CM. Which exercises target the gluteal muscles while minimizing activation of the tensor fascia lata? Electromyographic assessment using fine-wire electrodes. Journal of Orthopaedic & Sports Physical Therapy, 2013;43(2):54–64. pubmed.ncbi.nlm.nih.gov
  8. Parr M, Price PD, Cleather DJ. Effect of a gluteal activation warm-up on explosive exercise performance. BMJ Open Sport & Exercise Medicine, 2017;3(1):e000245. pubmed.ncbi.nlm.nih.gov
  9. Niinimäki S, Härkönen L, Nikander R, Abe S, Knüsel C, Sievänen H. The cross-sectional area of the gluteus maximus muscle varies according to habitual exercise loading: Implications for activity-related and evolutionary studies. Homo, 2016;67(2):125–137. pubmed.ncbi.nlm.nih.gov
  10. Rostron ZPJ, Zacharias A, Semciw AI, Kingsley M, Pizzari T, Woodley SJ, Green R. Effects of a targeted resistance intervention compared to a sham intervention on gluteal muscle hypertrophy, fatty infiltration and strength in people with hip osteoarthritis: analysis of secondary outcomes from a randomised clinical trial. BMC Musculoskeletal Disorders, 2022;23:944. pubmed.ncbi.nlm.nih.gov