6. Leg Extention
Done using a machine called, surprisingly, the leg press machine! This is a great exercise for your quadriceps muscles. Sit on the chair of this machine and adjust it so that your back is straight and has complete support. Bend your legs at the knees to fit behind the cushioned rod. Slowly straighten your knees to lift the rod up until your legs are completely straight; then slowly bring them back. Quite easy, eh? Beginners can start with 2 sets of 8-12 reps and adjust weight according to your strength.