Even if you are sitting still, in high temperatures, your heart rate will increase as it works harder to pump blood to the extremeties of the body to remove excess heat. This means that HRM's will not produce accurate calorie burn figures in conditions like hot yoga.
The truth is that hot yoga will not burn any more calories than doing the same poses in a room that is only 70F. And that is how you should track it.
And I am always skeptical of any reported figure over 800 calories per hour - a fit individual doing an intense cardio workout may burn this amount in an hour. But for a yoga workout where the emphasis is on flexibility and strength to some extent, rather than cardio intensity, figures anywhere near this level are extremely unlikely.
(I don't mean to dis hot yoga - it has many benefits. Just trying to put a more realistic figure on the calorie burn).
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.
| current weight: 178.0