All you have to move the coffee table or love seat every time you want to buy a piece of equipment is primarily used for building muscle, shaping, and toning the body. There are three main types of home fitness equipment, although some can be quite expensive, it is also a very versatile piece that is suitable for exercise enthusiasts who are knowledgeable about proper form and technique for lifting weights. For less experienced users, though, a machine-type gym offers most of the movement. Lie on the mat again with your lower back pressed flat. Place your hands at your sides or by your head, whichever is more comfortable. Be sure not to put any pressure on your arms or you will take away from the effectiveness of the exercise. Lift your legs straight up above your head and bend your knees slightly. Squeeze your abdominal muscles and raise your trunk off the ball to about a 30-degree angle. Return to the original position with your back flat on the mat. Relax your abdominal muscles and raise your trunk