Calories burnt in a BodyCombat class
Posted September 24, 2008on:
I get a lot of questions regarding the number of calories one can burn during a BodyCombat class (or BodyPump class for that matter). Whilst this is almost impossible to determine with 100% accuracy some of the more advanced heart rate monitors (HRM) have the ability to estimate your caloric expenditure using calculations based on your weight, gender, resting heart rate and of course your heart rate whilst exercising. I wore my heart rate monitor (a Polar F11) to every class I did for three straight months, so I’ve now got a pretty good idea of the approx amount of calories I personally burn in a class.
With a few exceptions I almost always track between 800-900 calories per Body Combat class – now that may seem high but there’s a couple of factors to bear in mind. First I’m not a small guy, I’m a dash under 6’1″, and weigh about 82 kg (about 182 lbs), and I’m one of those freaks that puts 110% effort into every movement, and then some (like jump knees at every opportunity!) I’ve also found you burn a lot more calories whilst instructing, not sure if it’s the extra adrenalin boost, nerves boosting your heart rate or the fact that you know you’re on display so always strive for perfect technique and maximum effort – but it’s definitely noticeable. In fact I’ve gotten as high as 1050 calories in a one hour class before!
In class this morning a member mentioned she only burns about 600 per class (she also wears an HRM), and that got me thinking. I weight about 80 kg and burn say, 800 in an average class (with no extra tracks thrown in). She’s about 60 kg and burns 600 on average (and she does train very hard). Could there be a simple direct relationship here? It does make sense that if you’re 25% larger you’ll exert 25% more energy moving that mass. Maybe for those without a HRM a basic calculation of 100 calories per 10kg of bodyweight could work? Food for thought anyway…