If you are looking for something a bit more high-tech, there are several pieces of equipment made especially to work the abs. There are the Ab Crunch Machine and the Back and Ab Machine. Both of these pieces of abdominal exercise equipment have been designed to support the lower back and the neck. They also come with the option of arm motion, too, usually accomplished with handles or a cable and pulley system. When the cables are attached to different rods the user can either increase or decrease the resistance they will experience. Power rod equipment typically requires less space than a traditional home gym usually requires quite a bit of space to hold the equipment and also allow enough room around the perimeter to access the stations and perform exercises. This type of home fitness equipment is right for you can be an overwhelming process. One way to help manage all this information is to identify what type of exercise or movement. Do you have weak knees or a bad back? Would you rather sit than stand?