Question on strength training calories and circuit training

Troutstream

I work out at an MMA gym two days a week, we do a combination circuit one day where we alternate between the treadmill, weights and the airdyne bike, switching between cardio and weights every minute. These are very vigorous workouts and the treadmill is at 5mph and 15% incline, so we are really pushing it for an hour at this. What is the best way to accurately measure what we are burning in these kind of workouts? Apparently my strength training workouts are not burning a single calorie, which is ridiculous.

212019156

Why do you think your strength training is not burning a single calorie? That's sort of silly.

Also what are you trying to accomplish with a workout like that?