What Muscles Do Squats Work?
Squats are a leg-day favorite for a reason! Even if you curse your achy thighs the next day.
Squats work several muscle groups at once, helping you build strength and improve balance. Consistent practice can even make everyday movements easier.
But what muscles do squats work exactly? And can changing your squat technique help target different areas? Here's what you need to know.
Key Takeaways
- Squats primarily work your quadriceps, glutes, and adductors.
- Your hamstrings, calves, abs, and lower back provide additional support.
- Different squat variations can shift the emphasis between muscle groups.
- Proper form and progressive overload help build strength and muscle.
- Squats can improve lower-body power and everyday mobility.
See More: 7 Exercises That Will Give You Abs
What Muscles Do Squats Work?
Carriejune, founder of Minibeast, says:
"Squats are one of my favorite lower-body exercises because they work so many muscles together. Focus on getting stronger over time rather than a PB in the first session."
Squats are a compound exercise involving movement at your hips, knees, and ankles.
The main muscles doing the work are your quadriceps, glutes, and adductors, while other muscles help maintain balance and stability.
Let’s take a closer look at each muscle.
Quadriceps
Your quadriceps, or quads, are the muscles at the front of your thighs.
They produce knee extension, helping straighten your legs as you push up from a squat.
Glutes
The gluteus maximus is a powerful hip extensor, helping drive your hips forward as you stand.
A deep squat can increase the demands on your glutes, provided you have the mobility and control to reach that depth comfortably.
Adductors and Hamstrings
Your inner-thigh adductors help stabilize your hips, while the adductor magnus also contributes significantly to hip extension.
Your hamstrings assist with hip control and stability.
Although they're active during squats, they're generally less challenged than during exercises like deadlifts.
Core
Your core muscles include your abs, obliques, and spinal erectors.
These come together and brace your torso to support your spine.
Calves
Your calf muscles, including the gastrocnemius and soleus, contribute to ankle stability throughout the movement.
How Squat Form Changes Muscle Emphasis
Not all squats challenge your muscles in exactly the same way, which is why personal trainers recommend practicing a good mix of squats.
For instance, a deeper squat generally increases hip and knee movement, potentially increasing glute and quad demands.
A wider stance, as used in a sumo squat, changes hip positioning and can alter adductor involvement.
On the other hand, a more upright torso often increases knee-extension demands. With these, a greater forward lean changes the demands on your hip extensors.
Research published in 2024 confirms that changing your stance, torso angle, and squat depth can shift which muscles work hardest during a squat.
In general, slower squat repetitions and pauses increase time under tension without requiring heavier weights.
How to Perform a Back Squat With Proper Form
The back squat is a classic lower-body strength exercise, and one most trainers recommend.
Good form is everything. For a back squat, remember to:
- Position a barbell securely across your upper back, not directly on your neck.
- Stand with your feet around shoulder-width apart and toes slightly outward.
- Brace your core, keeping your spine stable and chest controlled.
- Bend your hips and knees together, lowering as far as you can comfortably maintain good technique.
- Push through your feet to stand, allowing your knees to track in line with your toes.
As with any new technique, start with a manageable load and gradually increase the weight.
Bonus: How To Build Your Own Workout Routine
Different Squat Variations and the Muscle Groups They Target
Different squat variations let you adjust resistance and muscle emphasis.
Your individual anatomy and mobility also influence which squat position feels most natural. Try out different exercises to find out what fits your body best.
Popular options for beginners and intermediate athletes include the following movements.
Goblet Squat
Hold a dumbbell or kettlebell against your chest while squatting.
The front-loaded position encourages an upright torso, making the goblet squat a beginner-friendly way to learn the movement pattern.
Make sure you learn how to do squats with dumbbells first to lower the risk of injury.
Split Squat
With one foot forward and the other behind, lower your body by bending both knees.
Split squats challenge your quadriceps and glutes while developing single-leg balance. Bulgarian split squats elevate the rear foot for an additional challenge.
Hack Squat
Using a hack squat machine provides external support, allowing you to focus on controlled knee flexion and extension.
This variation is especially useful for emphasizing quadriceps training.
Other Squat Variations
Want more variety? Alongside the above, you can try these popular workouts.
Front squats hold the barbell across the front of your shoulders, encouraging a more upright position.
Pause squats involve briefly stopping at the bottom, while 1½-rep squats add a partial repetition before standing fully.
Additional Benefits of Squats
Regular squat training can improve more than the shape of your legs and buttocks.
Additional benefits include:
- Stronger leg muscles help produce force for other athletic movements (e.g., sprinting or vertical jump force).
- Better core strength supports posture and torso stability.
- Moving through a comfortable range of motion can improve functional mobility.
- Stronger muscles and improved joint control may help reduce certain injury risks.
- Resistance training places beneficial demands on bones and tendons.
Challenging squats can temporarily increase hormones such as testosterone and growth hormone, but these short-term changes aren't the main reason muscles grow.
Think of them as a little bonus rather than the main reason to squat, though.
How to Get Better Results From Squats
Looking for better squat results?
Trainers suggest starting with a movement-specific warm-up, then choose a squat variation that suits your goals.
For muscle growth, train with enough resistance that your final repetitions feel challenging while maintaining proper form.
Gradually increase your weight or sets as you become stronger. Also, include adequate recovery between demanding lower-body workouts. Your muscles need time to recover.
And make sure you consider clothing. Light and breathable gym clothes that move with your body, such as scrunch leggings or loose gym shorts, can make squats much more comfortable.
Remember, the hardest muscle to grow varies between individuals. What works for your gym buddies might be slightly different for your body.
Conclusion
Squats primarily work your quads, glutes, and adductors, with your hamstrings, calves, and core providing support.
Experiment with squat variations and focus on controlled movement rather than completing a mega set. Your legs will thank you!
Frequently Asked Questions
Will 20 Squats a Day Make a Difference?
Yes, especially for beginners. Twenty bodyweight squats can improve movement confidence and muscular endurance, although you'll eventually need greater resistance for continued muscle growth.
Do Squats Actually Build Muscle?
Yes, absolutely! When performed with sufficient resistance and progressive overload, squats can build muscle mass in your quadriceps, glutes, and other lower-body muscles.
What Are the Downsides of Doing Squats?
Excessive loading and poor technique can contribute to discomfort and injury. Likewise, inadequate recovery can also cause issues. Choose a suitable variation for your body and maintain proper form.
Keep Reading: Does Lifting Weights Stunt Growth? What The Science Says
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