Properly done... bodyweight calisthenics exercise into your lifestyle, you will most likely fail to use the equipment you have at your disposal... but rather by your desire to improve and incorporate physical activity into your lifestyle. Traditional home gyms may have free weights and barbells, or be machine-type gyms with several stations and functions attached to a single steel frame. A free weight system is good for exercise enthusiasts of varying fitness and skill levels. The most expensive models are extremely durable and can handle a great deal of intense use by serious runners. More mid-range models are not quite as durable, and the low-end models are generally best suited for walking and light uses. Treadmills There are many other types of fitness equipment, and different budgets available to spend. Exercise equipment is costly, so you must consider your finances before you buy. 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