Squats work the muscles in your lower body and core. Squats primarily target the lower body, specifically the quadriceps and glutes. Your knee posture, in particular, bending them to a 90-degree angle, aids in the proper activation of certain muscle groups... The main muscle group targeted by squat exercises is the quadriceps. These are the muscles on the front of your thigh that control your knee movement. They also play a role in extending your leg when walking or running. The second major group of muscles targeted by squat exercises is the gluteus maximus. These are the largest and most powerful muscle in your body. They are located along your hip bone and sit deep within your torso. The gluteus maximus extends your spine and brings your shoulder blades together, aiding in protecting your spinal cord. It also assists with balance when standing up after sitting for a long time. Other muscles that are worked by squat exercises include the hamstring muscles. These are the thin, rope-like muscles that run down the back of your thigh and connect to your foot. They play an important role in maintaining good posture and helping you stand up straight. Last, but not least, squats exercise the adductor muscles. These are the large muscles located behind your knee that act to pull your leg toward your chest. They are important for climbing stairs and other activities where you need to bring your leg forward.