Do you lose calories while weight training?

You have to log it as cardiovascular. It doesn't burn much calories though. I dont log my lifting.

Yes. Add exercise, cardiovascular, search strength training. I log it at least twice per week. It's there, but it won't give you a high calorie burn like running.

Search for the word "train" in Cardiovascular and log the time as "Strength training (weight lifting, weight training)" to get an estimate for Calories.

I don't think of it as losing Calories when I exercise, I like to think of it as earning Calories that get added to my daily goal - and on the mobile app extra Calories from exercise are added to your goal in the equation on the Home page. Before I had a Fitbit, I would only eat back about 50 to 75% of the earned Calories to account for the overestimation of Calories from the MFP exercise database. With the Fitbit, I eat back all of my earned Fitbit adjustments and have been maintaining for a while now.

BlueHorse8 wrote: »

How accurate is the Fitbit when doing strength training? This week I lifted for 51 minutes and my fitbit showed I burned 465 calories in 53 minutes. Seems high. I did do 6 sets of each muscle group; chest, shoulders, back, biceps and triceps.

Not at all accurate as it uses an accelorometer.

My Fitbit is wildly inaccurate when it comes to strength training. I frequently get burns of 1000+ and half of my workouts are rest periods. On average I'm eating 500+ calories less to maintain my weight than Fitbit suggests when I track lifting several times a week.

dniania wrote: »

When I log strength exercises it never shows how many calories I've burned

i would use a heart rate monitor to see how much kcal i was burning while lifting.

Strength training builds muscle, which increases your "base" metabolism. It's not intended to burn lots of calories right then and there.

It is very hard to accurately determine how many calories you burn during weight training, so in general, a low burn rate is calculated under Cardio, not strength training "Strength training". Just remember its extremely hard to accurately calculate caloric burn for weight training without a large amount of data, there are big differences between people. For example I benched sets with 265lbs, a friend benched 175lbs for same sets, and we are approximately the same weight so the burn is recorded as the same...of course its not the same. Or even for the same person between workouts its hard to calculate: one day I worked arms with 90lb weights, another strength training day I moved 875lbs on the leg press for sets...but it still logs the same burn rate...nowhere near the same burn in reality.

BlueHorse8 wrote: »

How accurate is the Fitbit when doing strength training? This week I lifted for 51 minutes and my fitbit showed I burned 465 calories in 53 minutes. Seems high. I did do 6 sets of each muscle group; chest, shoulders, back, biceps and triceps.

Fitbit isn't really very accurate and is extremely inaccurate for strength training, it can move, be bumped, only really notes HR anyways... For me, I get 297 for 53 minutes of strength training by MFP, nowhere near 465 you got. You need to consider your size, what weight you are pushing, and what frequency of sets and exercises matters a ton. For example I generally I did maintenance workouts with 800-900lb leg press, 300-400lb deads/back machine, 275lbs bench press, but recently since I am coming back I have increased the time between exercises and reduced reps and in a few cases some weight. So while it was once a tad low, I am probably burning less calories now, and MFP calc is more on target. If you are doing more weight and weigh more than me, and have short rests between sets, maybe it is close to correct. If you are doing less weight or have long rests between sets, it is even more extremely off...

queencoombs wrote: »

Lifting is amazing for burning calories for hours after you've finished! And it gives you shape like no other exercise!!

#1: Not really--"afterburn" is often wildly overstated
#2: Correct

Weight training is mostly to preserve muscle and shape things around, I don't even try and log it anymore.

Not much for calories but it does unreal things for some. DW was 130 and a size 8. After several months she'd lost 6 pounds, had to buy size four.