1. Muscle Groups
Lower Body

2. Gluteus Maximus Location: Buttocks
Function: Climbing stairs, walking, standing up
Exercise to Strengthen it: Squat, leg press
Notes: Made up of several muscles. The largest muscle in the body is the gluteus maximus.
Daily uses
Extension phase of walking upstairs

3. Hamstring Location: Back of upper lower leg Function: Walking
Exercise to Strengthen it: Lunges, squats, leg press
Notes: The hamstrings are made up of three muscles. Don't squat below 90 degrees, otherwise you could damage your knees.
Daily uses
Bending the knee to step over something

4. Quadriceps Location: Thigh – front
Function: Climbing stairs, walking, standing up
Exercise to Strengthen it: Squats, lunges, leg presses
Notes: The quads are made up of four muscles.
Daily uses
Kicking

5. Gastrocnemius Location: Back of lower leg
Function: Push off for walking, standing on tiptoes
Exercise to Strengthen it: Lunges
Notes: The gastrocnemius give your legs a rounded shape.
Daily uses
Standing on tip toes