Different Types of Squats and What Muscles They Target

Squats are one of the most effective lower-body movements you can do, but not all squats work the same muscles in the same way. Changing your foot width, your heel height, your body angle, or the load position shifts the emphasis from one muscle group to another. That is the short answer.

If you have ever wondered why your quads feel destroyed after one squat variation but barely worked after another, it is because small changes in setup change which muscles have to do the most work.

This guide covers the most useful squat variations, what each one targets, who each one suits, and how to put them together in a real training week at home.

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Table of Contents

• What muscles do squats actually target?
• How stance and setup change muscle emphasis
• The main types of squats and what they target
  • Bodyweight squat
  • Sumo squat
  • Goblet squat
  • Split squat
  • Bulgarian split squat
  • Pistol squat
  • Wall sit
  • Jump squat
  • Narrow stance squat
  • Box squat
• Which squat targets the most muscles?
• Are squats safe if you have osteoporosis?
• Do squats help lower A1c?
• How to build squats into a home training week
• Quick comparison: squat type vs. primary muscle emphasis

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What muscles do squats actually target?

Before looking at individual variations, it helps to know which muscles are in the picture.

Every squat variation works some combination of these:

Quadriceps (quads): The four muscles on the front of your thigh. They extend the knee, which means they straighten your leg as you stand up. Most squat variations load the quads heavily.

Glutes: The three muscles that make up your backside. The gluteus maximus is the largest and most powerful. It drives hip extension, which means pushing your hips forward as you rise out of the squat. Wider stances and deeper squats tend to load the glutes more.

Hamstrings: The muscles along the back of your thigh. They cross both the hip and the knee, so they work as stabilizers and assist in hip extension during squats. They are rarely the primary mover in most squat variations but they are always involved.

Adductors: The inner thigh muscles. Wider stances recruit these more directly, which is why a sumo squat tends to be felt in the inner thighs.

Calves (gastrocnemius and soleus): They stabilize the ankle during squats and take on more load when the heels are elevated or when you are working through a deep range.

Core: Your abs, obliques, and lower back all work to keep your torso upright and your spine stable through the movement. Some squat variations demand more core stability than others.

Hip flexors: Not primary movers in a squat, but they have to lengthen and allow depth, especially in narrow stance or upright squat positions.

So the base is always quads, glutes, and hamstrings, with supporting work from the adductors, calves, and core. The variation changes how much each one contributes.

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How stance and setup change muscle emphasis

Two things drive most of the difference between squat variations.

Foot width and toe angle. A wider stance with toes pointed out puts the hips in external rotation. That position loads the glutes and adductors more. A narrow stance with toes forward keeps more tension on the quads.

Torso angle. A more upright torso during the squat shifts work toward the quads. A more forward-leaning torso shifts it toward the glutes and lower back. This is why front-loaded squats like the goblet squat tend to feel more quad-dominant, while a bodyweight squat with a pronounced forward lean can feel more posterior.

Depth. Squatting deeper loads the glutes and hamstrings more. Partial squats keep more emphasis on the quads. For most people, aiming for thighs parallel to the floor or slightly below is the useful target.

Load position. Holding weight in front (like a goblet squat) encourages a more upright torso. Holding nothing, or holding weight behind you, changes the balance point and shifts muscle demand.

Understanding these levers helps you pick squats on purpose rather than just rotating through variations randomly.

1. Bodyweight squat

Primary muscles: Quads, glutes, hamstrings
Secondary muscles: Core, calves

The standard bodyweight squat is feet roughly shoulder-width apart, toes turned out slightly, lowering until the thighs are parallel to the floor, then pressing back up. It is the foundation that all other variations build on.

For beginners, this is the right place to start. It teaches the basic squat pattern, builds strength evenly across the quads and glutes, and lets you focus on depth and control before adding difficulty.

If 20 clean reps feel manageable, it is time to progress to something harder.

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2. Sumo squat

Primary muscles: Glutes, adductors (inner thighs)
Secondary muscles: Quads, hamstrings

The sumo squat uses a wide stance, much wider than shoulder width, with toes turned out significantly, often 45 degrees or more. The wider position opens the hips and places more demand on the glutes and inner thighs compared to a standard squat.

People who find bodyweight squats easy but want more glute emphasis often find the sumo squat useful. It also tends to feel more comfortable for people with limited ankle mobility because the wider stance reduces how far forward the knees need to travel.

The trade-off is less quad emphasis. If building quad size is the goal, sumo is not the first choice.

Primary muscles: Quads, glutes
Secondary muscles: Core, upper back

The goblet squat involves holding a weight at chest height, elbows tucked in, and squatting with an upright torso. The front-loaded position forces the torso to stay tall, which shifts demand heavily onto the quads and core.

For beginners who want to add resistance at home, a heavy backpack, a water jug, or any weighted object held at the chest turns a bodyweight squat into a goblet squat.

It is also an excellent teaching tool. The front load acts as a counterbalance, which makes it easier to sit into depth without falling backward. Many coaches use goblet squats as the first weighted variation for exactly this reason.

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4. Split squat

Primary muscles: Quads, glutes
Secondary muscles: Hamstrings, core, hip flexors

A split squat is a stationary lunge position. One foot is forward, one is back, and you lower the back knee toward the floor. Both legs work but the front leg does most of the pushing.

What makes it different from a regular squat is that it trains each leg more independently. Strength imbalances between sides become obvious quickly. If one leg is noticeably weaker, split squats will surface that.

The split squat also provides more hip flexor stretch for the rear leg, making it useful for people who sit a lot and feel tight through the front of the hips.

For people who find both-leg squats limited by their current strength level, split squats are a useful step up because they load each leg more with the same bodyweight.

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5. Bulgarian split squat

Primary muscles: Quads, glutes
Secondary muscles: Hamstrings, core, hip flexors

This is the harder version of the split squat. The rear foot is elevated on a chair or bench, which increases the range of motion and places much more demand on the front leg.

The Bulgarian split squat is often called one of the hardest bodyweight leg exercises for good reason. With just bodyweight, it can challenge even people who find regular bodyweight squats very easy.

The front leg, specifically the quad and glute, works through a longer range at a higher load. The core has to work harder to keep the torso stable. And the hip flexor stretch on the rear leg is more intense.

If the goal is building leg strength and muscle at home without any equipment, the Bulgarian split squat is hard to beat. It is also a useful progression step on the way to pistol squats.

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6. Pistol squat

Primary muscles: Quads, glutes
Secondary muscles: Hamstrings, core, hip flexors, calves

The pistol squat is a single-leg squat where the non-working leg is held straight out in front. It is one of the most demanding bodyweight squat variations because it requires strength, balance, ankle mobility, and hip flexor control all at once.

Getting to a full pistol squat takes most beginners several months of progressive work. The path usually goes: assisted pistol holding a surface, negative pistol (slowly lowering), box pistol (squatting onto a low surface), then full pistol.

Once someone can do clean pistol squats, they have a strong, well-coordinated lower body. It is the kind of movement that signals genuine leg strength, not just the ability to move weight through a partial range.

The skill path finder tool at Guppy Calisthenics can map the exact progression steps between where someone is now and their first pistol squat.

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7. Wall sit

Primary muscles: Quads
Secondary muscles: Glutes, hamstrings, calves

The wall sit is an isometric hold rather than a movement. The back is flat against a wall, the thighs are parallel to the floor, and the position is held for time. No actual squatting happens.

It is quad-dominant and builds endurance capacity in the muscle rather than strength through a range of motion. Wall sits are a good addition when someone wants to add time under tension without the coordination demands of dynamic movements.

They are also useful for people managing knee discomfort, as the controlled, static position puts load on the quads without the impact or instability of dynamic squatting. If you are exploring how to train around discomfort, this guide on whether calisthenics can help with joint pain is worth reading.

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8. Jump squat

Primary muscles: Quads, glutes
Secondary muscles: Calves, core, hamstrings

The jump squat adds an explosive element to the basic squat. You lower into a squat and then drive through the floor hard enough to leave the ground, landing softly and flowing back into the next rep.

The power demand is what makes jump squats different. Regular squats build strength. Jump squats build power, which is the ability to produce force quickly. The calves also take on significantly more load compared to a regular squat because of the push-off and landing absorption.

Jump squats work well as a conditioning tool in circuit training. They raise the heart rate fast and add cardiovascular demand to a leg session.

They are not suitable for people with knee pain, early-stage osteoporosis, or anyone who cannot absorb impact well. For those people, the loaded variations without jumping are a better fit.

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9. Narrow stance squat

Primary muscles: Quads
Secondary muscles: Glutes, calves

Bringing the feet closer together, inside shoulder width with toes pointing mostly forward, shifts more work onto the outer quads. The glutes are still involved but the narrow stance reduces the hip external rotation that brings them into dominant play.

Narrow stance squats also challenge ankle mobility more because the knee travels further over the foot without the wide base for support. People with limited ankle flexibility often find this variation uncomfortable at first.

They are a useful variation for people who specifically want to develop the outer quad sweep that creates a more athletic-looking thigh.

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10. Box squat

Primary muscles: Glutes, hamstrings
Secondary muscles: Quads, core

A box squat involves squatting down to sit lightly on a surface behind you and then pressing back up. The difference from a regular squat is the brief pause at the bottom and the forward shin angle, which keeps the knees back and loads the posterior chain more.

Box squats are particularly useful for beginners who struggle with squat depth or form. The target gives a concrete endpoint. They are also used in rehabilitation because they teach the hip hinge pattern and reduce the demand on the knee.

As home training tools, a couch or low chair works fine for most people.

If the goal is hitting the most muscles at once, the Bulgarian split squat and the pistol squat are strong candidates.

Both involve the quads, glutes, hamstrings, adductors, calves, and core working simultaneously. The single-leg nature also adds a balance and stabilization demand that recruits smaller muscles around the hip and knee that bilateral squats can ignore.

For a bilateral (both-leg) variation, a deep bodyweight squat or goblet squat done to full depth with a controlled tempo hits nearly the entire lower body plus the core.

But the honest answer is that the "most muscles" question is less useful than the "right muscles for my goal" question. Someone who wants to build bigger glutes should train sumo squats, Bulgarian split squats, and deep bodyweight squats. Someone who wants quad development should focus on goblet squats, narrow stance squats, and split squats. Someone training for power should include jump squats.

More muscle recruitment is not always better. Specificity matters more. Picking variations that target what you actually want to develop will produce faster visible results than always chasing the hardest or most complex option.

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Are squats safe if you have osteoporosis?

This is a reasonable concern and the answer is generally yes, with conditions.

Bone density benefits from load-bearing exercise. Squatting is a load-bearing movement, which means it stimulates bone remodeling in the legs, hips, and spine. Research supports resistance training and bodyweight exercise as useful tools for people managing or trying to prevent osteoporosis.

The important considerations are:

Impact should match current bone health. Jump squats and other high-impact variations are riskier for people with significant bone loss. A fall or excessive spinal compression can cause problems. Starting with slow, controlled bodyweight squats or wall sits is safer.

Form matters more. A squat done with a rounded back under load puts stress on the vertebrae. A squat done with a neutral spine and controlled descent does not. Learning good form before adding difficulty is especially important here.

Get clearance from a health provider. Anyone with a diagnosed condition like osteoporosis should talk to their doctor or a physio before starting a new training program. A physio in particular can advise on which variations are appropriate for individual bone density levels.

For most people with mild-to-moderate osteoporosis, bodyweight squats, split squats, wall sits, and box squats done with good form are reasonable starting points.

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Do squats help lower A1c?

A1c is a measure of average blood sugar over roughly three months. Lowering it is a meaningful health goal for people managing type 2 diabetes or pre-diabetes.

Resistance exercise, including squats, helps because skeletal muscle is one of the primary sites for glucose uptake. When muscles contract repeatedly, they absorb glucose from the blood, which reduces blood sugar levels. Over time, regular strength training improves insulin sensitivity, meaning the body needs less insulin to manage the same amount of glucose.

Squats specifically work the largest muscles in the body, the quads, glutes, and hamstrings. Exercises that use large muscle groups tend to have a stronger effect on blood sugar compared to exercises using smaller muscles.

The evidence suggests that consistent resistance training, combined with other lifestyle changes, can contribute meaningfully to A1c reduction. It is not a substitute for medication or medical advice, but it is a useful part of the picture.

For people in this situation, the key is consistency rather than intensity. Three squat sessions a week using manageable variations is more useful than one brutal session followed by days of soreness and inactivity. The goal is sustained stimulus to large muscles over time.

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How to build squats into a home training week

Knowing the variations is only useful if they end up in an actual training structure.

For most beginners training at home, a three-day-per-week full-body routine is a sensible framework. Each session includes a squat variation as the primary lower-body movement. The variation can stay the same for several weeks while reps and difficulty progress, or it can rotate between sessions.

A simple example for someone at a beginner level:

Session 1: Bodyweight squats (3 sets of 15-20 reps), progressing depth and control
Session 2: Split squats (3 sets of 8-10 per side), focusing on quad and glute loading
Session 3: Sumo squats or wall sit (depending on energy), targeting glutes and adductors

Once bodyweight squats feel easy, the natural progression is goblet squats, then split squats, then Bulgarian split squats, then pistol squat progressions.

This kind of structured approach is exactly what makes calisthenics effective for beginners. If you want to understand why focusing on a few key movements consistently beats rotating through dozens of exercises, this piece on the 80/20 rule in calisthenics explains the logic clearly.

Pairing squats with push-ups and pulling movements like rows or pull-up progressions gives a complete home training session. The best calisthenic workouts for beginners shows how to combine these patterns into a full routine.

Core work also matters for squat performance. A stable trunk allows better depth, more upright posture, and better force transfer. The guide on core strength exercises covers which movements are most useful at the beginner stage.

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Quick comparison: squat type vs. primary muscle emphasis

Here is a simple reference for choosing between variations:

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A note on building visible leg muscle with squats

Squats can build noticeable muscle. That is not in question. But the rate of progress depends on progressive overload, meaning the training needs to get harder over time in some way, whether that is more reps, more difficult variations, or more load.

Doing 20 bodyweight squats three times a week for six months without ever making it harder will not continue producing change after the first few weeks. The body adapts and then stops adapting.

This is why progression matters more than variety. Picking one or two squat variations and getting genuinely stronger at them over months will build more visible leg muscle than rotating through ten variations without tracking progress.

If that idea is useful and you want the broader case for bodyweight muscle building, this post on whether you can build muscle with calisthenics covers the evidence and practical expectations.

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Where to start if this feels like a lot

Squat variations are worth understanding, but decision paralysis is a real thing. Here is the short version for someone who just wants to begin.

Start with the bodyweight squat. Do three sets. Focus on keeping your chest up, your knees tracking over your toes, and getting your thighs close to parallel. Do that two or three times a week until 15 clean reps feel easy.

Then move to split squats. Same idea. Build up, progress the reps, then add difficulty.

The rest of the variations on this list are tools you can reach for when you have a specific reason, more glute focus, more quad challenge, more power, or a progression toward something harder like the pistol squat.

For absolute beginners who want a structured plan that tells them exactly what to do, rather than making all these decisions alone, the Guppy Calisthenics app places users at their current level and gives daily workouts with clear progressions for push, pull, legs, and core. There is no gym required, and the leg training progresses through exactly the kind of squat variations covered here, starting where it makes sense for the individual and building from there.

The calisthenics level test is also free and takes about two minutes. It tells you where your leg strength sits right now and gives a realistic first-week plan based on your current squat baseline.

Squats are simple in concept and endlessly scalable in practice. Pick a starting point, do it consistently, and progress when the current variation stops challenging you. That is genuinely all it takes to build stronger legs at home.