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Too many calories burned?



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MOTIVATED@LAST
Posts: 13,906
5/3/13 9:01 P

JLOVEHIT,

Actually, your stated reasons are why HRM's are not 100% accurate either. Two people the same age and weight doing the same exercise are probably burning about the same number of calories, despite the difference in reported heart rates.

The true measure of energy burn is oxygen consumption, but obviously this is hard to measure outside a lab setting. There is often a predictable relationship between heart rate and oxygen consumption, as the heart works harder to pump oxygen around the body. So HRM's use heart rate as a proxy for oxygen and energy consumption.

But this relationship is not 100% reliable. They are based on statistical averages, and like most averages, they are a pretty good estimate for one third of the population, a somewhat useful estimate for another one third, and less useful for the remaining one third. Some people have a faster heart rate, and some a slower one, yet HRM's lumps everyone together.

High blood pressure and some medications can lead to an accelerated heart rate above what the exercise actually warrants. A flat battery, or poor contact between the skin and the device can also distort results.

Activities like walking and running are pretty well studied, and online estimates are normally reasonably accurate. Online estimates are less reliable for activities where intensity is harder to judge objectively, such as the elliptical or aerobics.

HRM's are probably more reliable than other methods for these hard-to-judge activities, but BLIND faith in HRM's is not justified.

M@L



2009GETINLINE
SparkPoints: (14,794)
Fitness Minutes: (8,630)
Posts: 969
5/3/13 3:32 P

I will invest in a heart rate monitor...I kept putting it off.
As for the calories 1500-1700? Heck I'm still trying to keep up with 1200.
Thanks for your input gals, I'll work on the calories. I'm in week 3 of the challenge for foods. It isn't easy trust me! emoticon emoticon So far today 3:32pm est 1010 calories.

emoticon



UNIDENT
Posts: 33,498
5/3/13 3:11 P

So increase your calories. You get that notice if you track more calories than your goal is. What you do is increase the goal so it more closely matches. You can specifiy how many calories to burn per week on the Fitness Goals setup page.



JLOVEHIIT
Posts: 17
5/3/13 11:54 A

The only way you can ever be 100% positive of your caloric burn is to invest in a heart rate monitor. Most machines / online calculators just don't hit it right on as heart rate is a definite factor. Someone could do one exercise and have their heart rate only hit 130BPM, and another could do the exact same exercise and have their heart rate hit 150BPM resulting in a larger calorie burn and your body working harder. Weight, age, etc all play a factor. The estimates you find online are just that, an estimate, a ballpark.



BARBANNA
SparkPoints: (96,615)
Fitness Minutes: (74,684)
Posts: 3,189
5/3/13 11:41 A

You can't burn too much but you can take in insufficient nutients to supply the necessary fuel. I day ot two is not a problem. I try not to micro-manage the trackers. Just do what the program recommends and you will win in the end. I have lost 26 lbs and thats a big % for my small frame.



2009GETINLINE
SparkPoints: (14,794)
Fitness Minutes: (8,630)
Posts: 969
5/3/13 11:21 A

Yesterday was cardio I walked an 1 hour 10 mins. (slow)
I danced for 15 mins. Then I did housework. Altogether I walked 11,122 steps. I keep getting the notice to increase my calories.



MOTIVATED@LAST
Posts: 13,906
5/3/13 10:03 A

2009Getinline,

I think it is best to look at this over a weekly average, rather than what happens on a single day. If you are about on the recommended range on average, then that is a pretty good place to be.

M@L



2009GETINLINE
SparkPoints: (14,794)
Fitness Minutes: (8,630)
Posts: 969
5/3/13 8:34 A

I'm burning too many calories walking. Even though I'm walking slow, snow blower walking, stopping less than a minute sometimes with my walker. I know I'm making the 10,000 steps per day.

I increased my calories on the tracker. Some days I'm over my caloric intake, some days I'm under...any suggestions?



KAB7801
SparkPoints: (72,093)
Fitness Minutes: (30,951)
Posts: 2,612
3/24/13 7:47 A

I am trying to intensify my workouts it's hard



MOTIVATED@LAST
Posts: 13,906
3/24/13 6:35 A

Actually, half an hour a day is probably period of time to work out.

Once you get to being able to work out for more than 30-40 minutes, you are better off adding more intensity to your exercise, than more time.

Unless they are training for an endurance event, people working out for 60 minutes plus probably aren't getting the most out of their workout efforts.

M@L



CALGIRL80
Posts: 362
3/23/13 12:00 P

Thank you for posting this as I also keep getting the same.message. Blessings to you on your journey.



CHRISEMBREE
SparkPoints: (1,368)
Fitness Minutes: (1,638)
Posts: 29
3/22/13 5:26 P

Thanks Everyone! I went ahead and upped my estimated calories burned and it didn't change my calories so I guess I'll keep chugging ahead. I realize that compared to many, my half hour/day isn't much but I'm thrilled to be getting that in! Cannot wait for it to warm up so we can start walking. I appreciate all the feedback!



BARBANNA
SparkPoints: (96,615)
Fitness Minutes: (74,684)
Posts: 3,189
3/22/13 3:11 P

It's hard to do too much as far as I am concerned unless you are exhasted and feel really weak. I am 57 soon to be 58 with 100-120 min on the elliptical every day, 60 min strengthening and 10 stretching. I feel great but everyone is different. That's in addition to working with rehab patients for 5-8 hrs.



UNIDENT
Posts: 33,498
3/22/13 2:21 P

Christina, most exercise is between about 6 and 10 calories per minute.

So in 25 minutes one could expect to burn between 150 and 250 calories. So the estimate of 197 is probably bang on.

100 would be extremely low and I cannot think of anything that actually qualifies as "exercise" that would burn that little in that time. Even walking would burn more.

I think your own perception of what exercise does/should burn is perhaps not matching the reality of it.

Given that, and your statements about others telling you you're not eating enough, yes I'd definitely try doing it "the spark way" for at least 8 weeks and see if this helps you to kick back into losing.



WENDIBUGG
Posts: 655
3/22/13 12:50 P

I always get that message so I just changed the settings. Not sure how accurate their calories burned calculator is though.



RENATARUNS
SparkPoints: (3,523)
Fitness Minutes: (2,155)
Posts: 1,094
3/22/13 10:01 A

Did you just get that message that's something like "you're burning a lot more calories than you said you were", sort of thing? They're just prompting you to change your settings to more accurately reflect what you're doing. SP's default setting for exercise is very low, just several hundred calories burned per week (or so -- can't remember exactly), so if you're doing anything remotely serious there will be a large discrepancy and it will throw off your recommended calorie intake numbers. It's definitely possible you're eating too little -- just set it to an approximation of what you actually do in order to get a more realistic calorie range.



CHRISEMBREE
SparkPoints: (1,368)
Fitness Minutes: (1,638)
Posts: 29
3/22/13 8:35 A

Thanks! I guess I will adjust my goals then. So many times in the past I've been told I don't eat enough for calories burned because of my weight but I've always felt that was off. But as my DH pointed out to me this morning, my doing it my way certainly hasn't led to more weight loss so I guess I'll let SparkPeople guide me.



JENNILACEY
SparkPoints: (71,939)
Fitness Minutes: (53,834)
Posts: 2,482
3/22/13 7:55 A

Spark tends to underestimate calories burned to ensure you will lose weight. You can use a heart rate monitor for a slightly more personalized, accurate calorie burn.

I also find they overestimate your calories burned for their own videos. For example, I apparently burn more calories doing Coach Nicole's Jump Rope video even though I could fall asleep during it, than they estimate I would doing P90X or Insanity.

It also depends on how much you weigh. You burn more calories the more you weigh. According to Spark, I burn less than 300 cals for an hour of high impact aerobics (p90x, insanity). When I was at my starting weight, I'd likely burn around 500-600 cals.

So your best bet is to get a heart rate monitor use an average between Spark and the monitor.

Adjust your weekly calories burned. If anything, Spark tends to underestimate how much you burn to ensure weight loss. Most active women lose weight eating around 1500 cals. And you have to be burning an excessive amount more than Spark estimates for your calorie range to go up. Burning an extra 300-500 cals a week or so, you may still be in the same range.

I burn 2000 cals per week (low/moderate amount) and am 5'2 and under 110 lbs and I eat an average of 1400-1500 and lose weight.

Edited by: JENNILACEY at: 3/22/2013 (08:09)


CHRISEMBREE
SparkPoints: (1,368)
Fitness Minutes: (1,638)
Posts: 29
3/22/13 6:43 A

How accurate do you all think the calorie burn counter is for SparkPeople? According to it, I've burned more calories than recommended and in the past I've been told that I don't eat enough for my workouts. But honestly, can a 25 minute moderate calisthnic workout really burn 197 calories? That seems super high to me. I'm thinking I barely hit 100 in 25 minutes. SparkPeople wants me to eat more (adjust my fitness levels so that my calorie goal increases). Right now I've averaging about 1300/day. My range is 1200-1550. Thoughts?



 
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