Group exercise classes come in all types and intensities, so an hour of Pilates will definitively not burn the same as one hour of step aerobics. Also, the more you weigh, the more calories you’ll burn doing the same activity. For example, a 155-pound person will burn 422 calories in an hour of aerobics, while a 130-pound person will burn 354 calories. Several other factors come into play.
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Low-intensity classes feature steady activity. They usually don’t have bursts of intense activity and aim to maintain the same heart rate throughout the class. Low-intensity classes usually have less effect on joints and bones. They’re a good choice for people with health problems that need to take it easy. Low-impact aerobics burns an average of 352 calories per hour, while a dancing class can burn up to 422 calories.
High-impact aerobics can burn up to 500 calories an hour. And indoor cycling can burn up to 500 calories in 45 minutes. In high-intensity classes, the amount of calories can vary greatly depending on how much effort you put into the workout. For example, you can burn anywhere from 211 and 739 calories an hour using a stationary bike, depending on the intensity of the workout. Kickboxing is another high burner, with 350 to 450 calories burned during a standard 55-minute class.
Yoga, Pilates and strength-training classes might not be your idea of high-calorie burning choices, but depending on the intensity used, they can burn lots of calories. Thirty minutes of Pilates will burn about 140 calories. The calorie burn comes primarily from the repetition of moves, which increases muscle burn and strength intensity, even though the cardio workout doesn’t feel as intense. Depending on what type of yoga you choose, you can also burn lots of calories. Thirty minutes of power yoga will burn up to 300 calories.