These are one of the best exercises for training your quads / quadriceps. The equipment need for doing them is only a set of dumbbells. Also Care should be taken that you should not bend the knees too much. This is compound exercise that targets multiple muscles / a muscle groups. The secondary muscles affected by this exercise are Gluteus Maximus, Adductor Magnus, Soleus. Also care must to taken to maintain perfect form and now swinging side ways.

Video Demo 1

Video Demo 2

Tagged: quadriceps, quads