Aerobics performed at least 3 days a week will decrease your chance of heart disease by up to 50% in some cases. The earlier you start treating your cardiovascular system, the better your chance at having a long and healthy life. What kind of aerobics wear you have on in many cases, will be just as important as what kind of exercises you're doing.

Footwear

There is no argument that footwear is your best weapon against almost all injuries you can get while exercising. Almost any exercise you can think of creates an impact on your body. All of the impact from stepping, running, jumping, etc. is transferred from your base (feet) up through your ankles, knees, hips, back -- right on up to your neck. The most important aerobics wear you can treat yourself to is impact-reducing footwear designed to absorb as much bone-crunch impact as possible. You can skimp on almost any other part of your aerobics wear, but look for a quality pair of shoes.

Clothing

Most people base their clothing choices on how good they look in them. Looks are important, but you don't necessarily want to do aerobic in the same fabrics you would wear to keep cool at the beach. Cotton is an extremely breathable fabric, but if you tend to sweat a lot, it will tend to stick to your skin a lot. Lycra and other synthetics can give you breathable clothing, that is tight, yet doesn't glue itself to your skin. Other people will be happy with loose fitting shorts and a shirt. Whichever you choose, make sure you're not cooking inside them.

Back support

Don't be embarrassed to show up at the aerobics studio with a back support belt on. They can be bought fairly cheaply and can give you extra support, without restricting your movement. A flexible back support is essential if you have any back issues and are working with a step.