I had no idea that those were the burns reported from the test group. The most calories Ive burned was with MMX - 365cals - and that was the third time I did it. I havent experienced a 400cal burn yet. Currently in the recovery week of block 2. I think block 3 is going to bring in the burns though. There are alot more cardio days than in previous blocks and now that you are more familiar with the moves you can give more and ultimately burn more. We'll see what happens...

I agree, tracking calories after the workout seems silly to me. once you're back to resting HR what's the point?

I'll be honest and say that I wouldnt' have thought to keep it monitoring after the workout until I saw the test group do so in a few youtube videos. I've just done some reading and found in fact they aren't designed to be accurate outside of the workout...that said for me it will be an accurate indication of how intense my workout was. I know that my normal resting HR is between 50-5 bpm so seeing it remain over 80 for that long after a workout speaks to the intensity of the workout which does corelate to caloric expenditure even if the number itself is not 100% accurate. I'm not basing my diet off of the number i see so it's going to be a guide. It will also be interesting to see over time as my fitness improves how these results change.

Also normal resting rate hare rate as the name suggest is for RESTING. Even if you are just walking around a bit/standing , cooking etc , your hear rate is higher than the resting.
There is a tremendous amount of individual variation on how fast or slow your heartrate goes back to normal. The more fit you are the faster it goes back to normal.

Anyway, the whole method of wearing HRM after the workout is bro-science at the best, totally inaccurate. The only thing we can conclude that strength training do increases calorie burning after the workout, which is a common knowledge.

I have not seen those youtube video claims , but I generally try to avoid beachbody infometials. They need to do make flashy claims like that because that sells more copies. When P90X come out, it has no competition on the homeworkout market. Now there are many to choose from, so they need to come out some tangible quantifible hing to show why do you need to buy this ONE and not the others. Tony and beachbody makes good workouts, but people do not want to hear that his is a good /hard workout, and if you put the effort you will get some results. People want to hear that everybody lost 10% body weigh, people burned upto a 1000 calories etc. Big flashy number sells.

Very interesting. I am starting Block 3 on Saturday and I was wondering what the actual burn would be for P90X3. I am currently using a different approach to my eating which seems to be working for me. I might start using my Polar FT4 when I start my second set just to see what my burns are

Also normal resting rate hare rate as the name suggest is for RESTING. Even if you are just walking around a bit/standing , cooking etc , your hear rate is higher than the resting.

I was going to mention the same thing.

Your HRM may not necessary bad, but large boobs/ sportsbras get in the way of the HRM straps. I have similar a problem with my new top of the line Garmin HRM not I getting the signal. Sometimes I look at it and it shows heartrate like 100 and I am swimming in my sweat. I check my strap and it moved around and the sensor part is not near chest anymore or it moved up and the bottom of my bra is between my body and the straps, so it is not getting the signal. I adjust the straps and voila it goes up to 140 in 5 seconds later.
One day I may buy one of those sports bras which has HRM strap mbuilt in them, but they are rather pricey, plus often do not come in a large enough cupsize.

I definitely don't have a large boob problem hahaha, but I guess it could be shifting. It's weird because sometimes it flat out doesn't pick up my HR, then other times it's no problem, then other times it's fine until the last 10 minutes or so of my workout and no amount of shifting or re-wetting will make it work again. Because the problem is so sporadic I can't figure out how to solve it and I swear the satisfaction of seeing my total calorie burn is about 70% of the enjoyment I get out of working out!

I have experience a pretty high calorie burn from p90x3... I have a lifetrak c300 HRM. These are just from my personal experience, but cals burned has been pretty consistent. I am on block 2, week 5. I am doing the lean schedule. Here are some of my cals burnt for the tougher programs. Didn't list them all..

Accelerator:476+ cals
MMX: 465+
CVX: 450-460+

If you have time, please list them. I would be curios of the others. You listed the cardio workouts, which obviously would be the highest burn can be achieved. Total synergistic and similar ones probably will be lower and the flexibility ones like Dynamix are probably much lower.

I didn't see where they made a claim regarding 500 average burn per workout? I did see a video where the test group did CVX with HRMS and they burned between 300-600 calories depending on the person.

I would be interested to see what I burn, but I feel mostly dead at the end of each work out any ways. LOL. MMX destroys me.

I'm 5 days in on my first round of Block 1.

Syngergistics: 231
Agility X: 332
Yoga: 118 (wore it the first time just to see)
The Challenge: 231
CVX: 375

I expect these to increase the second time around as I was just trying to get used to the moves.