[JulieJ08]

Originally Posted by slimmingsi

you cannont burn the same amount of calories at the same heart rate if sat down than being stood up due to the amount of muslces being activated just to hold your body upright.

I don't think that makes sense. Sure, you don't use the same set of muscles. You might have to use the ones you do use harder. But if you get your heart up to 160 in both cases, then you've therefore managed to make the same metabolic demands on the heart and lungs.

Sitting up vs standing up doesn't determine how hard you work. How hard you work determines how hard you work.

[slimmingsi]

Originally Posted by Meg

Si, think about a heart rate monitor. It measures your heart rate and tells you how many calories you're burning, right? It doesn't ask you what equipment you're using to achieve that HR. It only translates HR into calories based on your age, gender, height, and weight. The type of equipment is not relevant to calorie burn. It might be relevant to muscle strength and balance issues, but not to calories expended.

I stand by my statement that if your HR is the same while doing different exercises, then you are burning the same amount of calories.

a heart rate monitor is not a good assessmen of calories burned its good for working out your heart rate and thats it. we will have to agree to disagree on this one i'm affraid as i'm not prepared to ignore 4 years of lectures in sports physiology.