3 ms·
What about standing versus sitting on a ball? Also how do they figure out how many calories you burn while doing something? I've always wondered that.
by thinkbohemian 15y ago
What about standing versus sitting on a ball? Also how do they figure out how many calories you burn while doing something? I've always wondered that.
- hugh3 15y agoAs I understand it (and hopefully an expert will correct me if I'm wrong) they measure the composition of the air you breathe in and the air you breathe out. From that they figure out how much O2 you're converting into CO2 and hence how much energy you've consumed.