P90X - Core Synergistics
Hi to all myfitnesspals, Last night I did Core Synergistics. I have a HRM but it doesn't calculate calories burned (I'm getting a new one). Trying to calculate what my approximate burn was. I know it won't be accurate, just looking for a range. Anyone have any idea? I'm 33, 195 lbs. My max heart rate was 161 and I stayed…
