There are plenty of exercises that you can do to challenge yourself. Even without weights, you can make things much tougher by incorporating single leg movements, slowing your tempo and reducing your rest periods. While your legs and glutes contain the biggest muscle groups in the body, you don’t have to go to a gym and lift massive weights in order to give them a good workout. With the right set of exercises you can use bodyweight alone to create a leg-shaking workout. ~ Berceste