I am wondering how accurate exercise machines are at counting calories burned. I realize it is not an exact read, but is there any doubt in using the read on the treadmill to determine how many calories you have burned?
The Heart rate 220-age/70 are meaningless. If I followed them I could sing Opera BADLY when I was at 70%. I find on some cardio machines they do not let you get into the 80% range. When I do those ones I put in I am 35 not 50. otherwise I do not break a sweat
I read a study not too long ago about how accurate exercise machine calorie counters are and it mentioned they could be off as much as 15% variance... if I can find the article, I'll be glad to post the link here.