As a fitness expert with a background in sports science, I can provide you with an estimation of the calories burned during sit-ups. However, it's important to note that the actual number can vary greatly depending on several factors, including your body weight, the intensity of the exercise, and your personal metabolic rate.

Sit-ups are considered a form of anaerobic exercise, which primarily targets the abdominal muscles. The calorie burn for anaerobic exercises is generally lower than that of aerobic exercises, but it can still contribute to overall calorie expenditure.

On average, a person might burn around 5 to 10 calories per minute while doing sit-ups, depending on the intensity. If you're doing 100 sit-ups and it takes you about 10 minutes, you could potentially burn around 50 to 100 calories. Again, this is a rough estimate and individual results will vary.

To improve the calorie burn and make your workout more effective, you can increase the intensity by doing the sit-ups faster or incorporating other abdominal exercises in a circuit.

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If you weigh 150 pounds and do 100 sit-ups in 10 minutes, you'll burn 57 calories. If you do the sit-ups in five minutes, you'll burn 28 calories, according to the online fitness site FitClick.read more >>