Step aerobics routines are even more efficient at burning calories. As the name implies, this routine makes use of a step to perform aerobics. The major reason for the effectiveness of these routines is the increase in heart rate which results in more oxygen needed by the body, and the working of the largest muscles in the body. These include the thigh muscles, glut muscles and the hamstring muscles. Because of the large size of these muscles, more energy is required for their movement, which comes from the calories stored in the form of fat. Hence, more calories are burned in these routines.
Obesity is fast becoming a pressing concern in the United States and this has lead to the development of many health-related diseases. There are several reasons due to which people gain weight. The basic contributory factor is that when we consume more calories than our body requires, the excess amount is stored in our body as fat. If we keep up with the same caloric consumption on a regular basis, it will eventually lead to overweight and obesity. The only way to prevent this is to control your diet or exercise regularly. However, the concern here is that most people who become obese do not get enough exercise, meaning that none of the fat stored is burned as they spend the entire day sitting in front of the television or computer screen.
One of the best exercise routines to lose weight is aerobics. As the name suggests, aerobics basically involves the air and it has the ability to increase your heartbeat for about 20 to 25 minutes. There are several advantages of doing aerobics to lose weight, such as burning a lot of calories in a short period of time, an increase in metabolic rate and better ability to burn body fat during inactivity.
Another positive thing about step aerobics routines is that it is a lot fun to do, since you can put on your favorite music and develop new dance routines. These aerobics routines also improve your balance significantly as well as your level of endurance. The best part is that you can do them easily within the comfort of your home. All you need to do is buy a few step aerobics DVDs or video tapes which do not even cost a lot, and work out with their help within 
your home where you can have all the required privacy and convenience.
Many people are afraid of step aerobics routines as they feel it can damage their knees because of the strong impact. However, with the availability of specialized shoes and a proper workout routine, you can perform this exercise with minimal chances of affecting your knees. Even if you take all these precautions, you must be extremely particular about stretching and warming up before beginning an aerobics routine. Once you know these routines, you can lose weight just within six weeks with only 45 minutes a day.