The primary muscle group engaged during squats is the quadriceps. However, squats also effectively engage other muscle groups, including the hamstrings, glutes, and calves. This compound movement promotes overall leg strength and stability while also engaging the core for balance. Proper form is essential to maximize benefits and minimize injury risk, as improper technique can strain the knees or back. Incorporating squats into a fitness regimen can enhance functional strength, making it easier to perform daily activities and sports.