That's because squats strengthen your glute muscles

glute muscles

The gluteal muscles, often called glutes are a group of three muscles which make up the gluteal region commonly known as the buttocks: the gluteus maximus, gluteus medius and gluteus minimus. The three muscles originate from the ilium and sacrum and insert on the femur.

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particularly, and the glute muscles are the biggest, strongest muscles in the body — they're your biggest power generator. Done properly, squats take the pain out of your hips: The glute muscles are external rotators and they take the pressure off the hip joint.

Do squats make your hips bigger or smaller?

More often than not, squatting will really just shape up your glutes, making them firmer instead of bigger or smaller. If you are losing body fat on top of performing squats, then your butt will likely shrink. If your glutes are building muscle, however, then your butt will appear larger.

Do squats make your hips bigger?

Squats work all of the glute muscles in one movement. When you strategically recruit and tax these muscles, you can trigger hypertrophy (or muscle size growth). So, yes, squats can help you build bigger glutes.