how much energy you use when you workout?
If you are using a rowing machine or something similar, about 600 kilocalories/hr
600*10^3 cal (25 Joules/6 calories) = 2,500,000 Joules per hour
this is 694 Joules per second or Watts
600*10^3 cal (25 Joules/6 calories) = 2,500,000 Joules per hour
this is 694 Joules per second or Watts