The leg extension isolates and builds your quadriceps. However, it should not be your primary quad exercise. The barbell squat is a much better option.
day 1 week 1,3,5,7 quads and calves
Sitting Leg Extension Deals
Sitting Leg Extension Deals
9 Vastus medialis ideas exercise, leg workout, fitness
Leg extension exercise instructions and video
Leg extension exercise instructions and video
35 Leg and glutes ideas leg workout, fitness body, lower body workout
35 Leg and glutes ideas leg workout, fitness body, lower body workout
Leg extension exercise instructions and video
day 1 week 1,3,5,7 quads and calves
35 Leg and glutes ideas leg workout, fitness body, lower body workout
Leg extension exercise instructions and video