Squats are a compound exercise that primarily target the quadriceps, hamstrings, glutes, and calves. It also works on the core and lower back muscles. Squats are considered a functional exercise, as they mimic the movement of sitting down and standing up, which are movements we do in our daily life.

The Leg Press is a compound exercise that primarily targets the quadriceps, hamstrings, and glutes. It's typically performed using a leg press machine, which allows for constant resistance on the legs throughout the movement.

The Leg Extension exercise is an isolation exercise that targets the quadriceps muscles, which are located in the front of the thigh. It's typically performed using a leg extension machine, which allows for constant resistance on the legs throughout the movement.

The Bulgarian Split Squat, also known as the Rear-Foot-Elevated Split Squat, is a single-leg exercise that primarily targets the quadriceps, hamstrings, and glutes. It's a variation of the traditional lunge exercise, but with the back leg elevated on a bench or step behind the person.

Walking Lunges are a compound exercise that primarily targets the quadriceps, hamstrings, and glutes. It's a variation of the traditional lunge exercise, but instead of staying in one spot, you take a step forward with one foot and then step forward with the other foot.

Jump squats, also known as plyometric squats, are a high-intensity, explosive exercise that targets the quadriceps, hamstrings, and glutes. They also work on the core, lower back, and calves. They are a variation of the traditional squat exercise, but involve an explosive jump at the top of the movement.

The Stiff-Leg Deadlift (SLDL) is a variation of the traditional Deadlift that targets the muscles of the posterior chain, including the glutes, hamstrings, and lower back. It is called "stiff leg" because the legs are kept straight throughout the exercise.