4. Sliding Knee Tucks
This exercise is should not be used on carpets, you are likely to injure yourself. It is best to exercise on a hard surface while using a cloth beneath each foot which slides freely. Sliding knee tucks exercises your core and arms. It is also a fantastic exercise for your lower back muscles. You will notice that sliding knee tucks need a lot of upper body strength. But if you can manage it, sliding knee tucks are excellent for your core. Begin in push up position and then slide your feet to beneath your buttocks. You then bend your knees towards your chest, while keeping your abs tight.