to think surely I must have burnt more calories than this?

[DrHarleenFrancesQuinzel]

I got a fitbit HR Charge for Christmas.

I do Metafit on a saturday morning. Today was my third week in a row wearing my fitbit. Ive not burned over 200 calories in any week. Today I only burned 151 calories. I dont believe that.

For anyone who is not sure, metafit is a high intense exercise class that lasts for 30 mins inc warm up/cool down. Today we did 25 secs squat jumps, 10 secs rest, 25 secs up and downs (lying on the floor and jumping up again) 10 secs rest, 25 secs lunge jumps. Repeated 3 times before the high knees finisher. That was round one. There were 3 rounds in total with different exercises in each one and finally finished by doing the 3 finishers for 30 secs each back to back. It certainly gets you out of breath and hot & sweaty.

Surely I would have burned more than 150 calories. Instead I could have gone to Parkrun and exercised at half the intensity for an extra 5 minutes and burned twice as many calories.

Is this right?

one legged burpees are the work of Satan - fact

Satan is my instructor

Higge my charge HR does.

It doesn't record the steps if you aren't taking them, but records the rise in heart rate. And more calories are burned. During my weights sessions my calorie burn definitely increases, even though I am not stepping.

My flex didn't, that's why I got the charge HR. The Charge doesn't have a heart monitor either. So I went for charge HR.

One legged burpees

One legged burpees?

Yep say an. I thought the single leg pistol squat was awful...but that sounds like hell

Just counted my PT session - 260kcal for an hour - I burn more on a one hour walk with the dog. I am not convinced about the accuracy of my Charge HR when it comes to energy burn or distance - I don't trust it to give me the right number but it doesn't affect how I use it - I enjoy the motivating aspect of the steps, it gets me out walking while I can't run due to injury - there's no way I'd eat to the calories it suggests.

It used to be 1500 for a woman and 1000 for a diet. When did it go up to 2000 for a woman?

Grid class (basically metafit) registered as 181 calories via my Apple watch this morning so that sounds about right.

gleam I remember 1000 for a diet too.

Not sure where 2000 came from either. It seems way too much. I put on weight at about 1500. That's with an inactive lifestyle.

On mfp, I used to lose about 1lb a MONTH on 1200.

Bloody hard work.

I've been surprised how few calories my fitbit says I burn during Body Attack, which is touted as able to burn something crazy like 700! After a class, it will usually consider the first 20 Cardio minutes as a 'run', with around 200 burnt, normal during the toning (just lunges and tricep presses) and then another simular 'run' for the last four tracks.

However, I do seem to burn more for the rest of the evening once I'm home.

Also fitbit says I spent 9 minutes at Peak yesterday morning - all I did was listen to the Archers Omnibus, and whilst Rob does get me annoyed, I'm not sure my heart was pounding more than after track 9 in Body Attack!

I would eat 2000kcal a day of I kept my exercise level what it is and wanted to maintain my weight.

One of the reasons given for the massive calorie burn after HIIT classes is that you tear muscles (tiny tears) when you exercise hard - and your body requires energy to repair and build muscle afterwards.

I think if I ate to 2000 cals a day I'd become very overweight.

The Archers as a workout! Could this be the key to exercise and weightloss?

My last (but not present) personal trainer had me on 2,000 cals a day and I was definitely gaining lean mass but not losing weight. It was actually difficult to eat that much.

Wouldn't that be good!

Just thinking about how easy it would be for someone to consume 2000cals:

Muffin plus Starbucks for breakfast: 5-600?

Couple of biscuits at breaktime: 150

Canteen lunch plus sweet: 7-800.

Another couple biscuits: 150.

Snack on getting home: 150

Pasta dinner plus large glass wine: 8-900.

Not so hard, at least for some. Add in a sedentary lifestyle and you're buggered.

The only way to accurately measure energy expenditure is my measuring gaseous exchange... What you breath in and out
It needs to be done in a lab
Hr monitoring infers calorie burn...not especially accurate and is best suited to endurance exercise, the relationship between hr and energy burn with strength training will probably not be the same as for steady state cardio

Metabolic rate is raised for a while after exercise for various reasons

Even the most intense exercise say running will only burn 600 to 800 cals per hour and you need a high level of cardiovascular fitness to run continuously for an hour.
The fact that you are hot sweaty and out of breath with a pounding heart doesn't always mean that you are burning a lot of calories
More likely you just don't yet have the level of fitness required to work at a very high intensity

I do HIIT sessions which last 45-60 minutes and rarely burn less than 350 cals - it varies depending on the structure of the workout, but it's generally around 450. I go to a chain which uses MyZone belts which display everyone's calorie burns, heart rate and exertion on a huge screen during the class. I've noticed that men generally burn 600-900 calories in a session, women 300-600.

I do a 45 min spin class with the belt on too and that usually comes in somewhere round 400 cals. For me personally, I know if I'm burning around 10 calories a minute, I'm performing at my max.

Mackerel, do you know what information they use to work out calorie burn, aside from measuring heart rate?
Do they also ask for body weight for example, age, gender?

Suzanne, yes they have a body scanner thingy that you get on in your induction and it spews out all your stats, which is then linked up to the account for your monitor. You do have to pay for the belt and body scan though and it's not obligatory.

Appreciate it probably isn't totally accurate calorie-wise. I think the general idea behind it is to measure exertion (your name shows up as either blue, green, yellow, orange or red on the screen depending on your effort - orange being the target zone) but it's helpful to get a general idea of what that equates to un terms of calories.

The fact that you are hot sweaty and out of breath with a pounding heart doesn't always mean that you are burning a lot of calories

The hot bit is energy burn - it takes calories to create heat.. The better you get at running the more efficient you are and the less energy you burn - you don't get anywhere near as hot. If you watch a new runner run - they move in a very inefficient manner, it's hard work but when an experienced runner runs, they move almost effortlessly - it can be very easy, almost relaxing - unless they are running at race pace of course!

I like to train with a hr monitor too
And having it up on a big screen must be a big motivator to work hard in the class!

Bear in mind that the fitter you are the lower your heart rate will be at any given level of exertion

Better running economy will lower the energy cost of exertion to an extent Higge but several other factors influence how hot you feel, eg
Clothing
Ambient temperature
Humidity
Surface area to volume ratio \ body size and shape
How efficient you are at dispelling excess heat, blood volume, sweating ect

I haven't been tracking calorie burn for individual exercises/sessions, but looking at it overall, it says I'm burning about 2750 a day, which I think is surprisingly high. Too high, in fact. I'm walking around 16K-17K steps a day (so nothing extraordinary), though do live in a very hilly town and go up and down a lot of step. I have a charge HR.

Dowager is that ALL calories during the day?

How long does it take you to do the steps?