Some treadmills fold up for storage, making them a good choice for those with knee and hip concerns. Bodyweight calisthenics exercise is the Bicycle maneuver. Many of you are probably familiar with this fun exercise. We've been doing it since we were kids in gym class, and it turns out, the bicycle is one of the most versatile and effective pieces of fitness equipment relative to their cost. Another low cost equipment alternative is a stretch band. These are just what they sound like, a stretchy band made of lycra, nylon or sometimes rubber. Sometimes called resistance bands, they allow you to work one muscle group while the resistance of the band stabilizes the opposing muscles. It 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. The quest for six-pack abs and flat stomachs has intensified over the past few years. In response,