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  • calories burned??

    what is a rough avg of cals burned for just regular digestion etc without factoring in exercise and activity for sci ppl??
    Bike-on.com rep
    John@bike-on.com
    c4/5 inc funtioning c6. 28 yrs post.
    sponsored handcycle racer

  • #2
    I've read that the process of digestion, by itself, burns roughly 10% of the total daily calories - that figure is subject to modification by the type of food that's consumed, as digesting fat burns the least number of calories, and protein the most.
    MS with cervical and thoracic cord lesions

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    • #3
      This is an excerpt from a Livestrong article: https://www.livestrong.com/article/5...hermic-effect/

      The thermic effect of food refers to the amount of energy used by your body to digest, absorb and dispose of the food you ingest. Consider this the operating cost of working your digestive system; one of the few costs in life you may be happy to pay. You burn off some of the calories you consume in order to digest and eliminate the food.

      The overall thermic effect of food is estimated to be, on average, about 10 percent of your overall calories, according to WorldFitnessNetwork.com. If you consume 2,000 calories over the course of the day, about 10 percent, or about 200 calories, will be expended on digesting, absorbing, metabolizing and eliminating that food.

      Different types of food require different amounts of energy to process, according to WorldFitnessNetwork.com. Fats have a thermic effect of about 3 percent. If you consume 100 fat calories, only 3 calories will be spent digesting the fat. Fibrous vegetables and fruit have a thermic effect of about 20 percent, while proteins have a thermic effect of about 30 percent. If you eat 300 protein calories, you’ll burn off 90 calories digesting the protein.

      The number of calories you expend in digestion depends on your body composition. Those with greater muscle mass burn off more calories digesting food than those who have more fat, according to ShapeSense.com.

      Following this article is a discussion of Highly Thermogenic Foods and a list of foods that burn calories to digest.

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      • #4
        thx all.
        so what does a quad/para burn on rough avg, cal wise, in just daily life not factoring in activity.
        Bike-on.com rep
        John@bike-on.com
        c4/5 inc funtioning c6. 28 yrs post.
        sponsored handcycle racer

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        • #5
          QUOTE=fuentejps;1847258]thx all.
          so what does a quad/para burn on rough avg, cal wise, in just daily life not factoring in activity.[/QUOTE]

          This goes back to basal metabolic rate (BMR) that we have discussed in other threads. Basal Metabolic Rate is the calories you would burn if you stayed in bed all day. Of course the BMR is affected by muscle mass, but it is doubtful it makes a great deal of difference.

          BMR Calculator:
          http://www.myfitnesspal.com/tools/bmr-calculator

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          • #6
            Originally posted by gjnl View Post
            QUOTE=fuentejps;1847258]thx all.
            so what does a quad/para burn on rough avg, cal wise, in just daily life not factoring in activity.
            This goes back to basal metabolic rate (BMR) that we have discussed in other threads. Basal Metabolic Rate is the calories you would burn if you stayed in bed all day. Of course the BMR is affected by muscle mass, but it is doubtful it makes a great deal of difference.

            BMR Calculator:
            http://www.myfitnesspal.com/tools/bmr-calculator[/QUOTE]
            I found that on avg
            male 2200 sedentary
            woman 1800 sedentary
            I would think it would be much lower in sci??
            Bike-on.com rep
            John@bike-on.com
            c4/5 inc funtioning c6. 28 yrs post.
            sponsored handcycle racer

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            • #7
              http://sci.washington.edu/info/forum...ition_2011.asp has useful info but I found over estimates the number of calories a high level tetraplegic can eat, 1500 keeps me at the same weight, 1200 and I slowly lose weight.

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              • #8
                Originally posted by fuentejps View Post
                I found that on avg
                male 2200 sedentary
                woman 1800 sedentary
                I would think it would be much lower in sci??
                It might be lower, due to differences in muscle mass between SCI and non-SCI people - but other factors might enter in, like spasticity (which is akin to isometric exercise, and can be pretty constant - even at rest).
                MS with cervical and thoracic cord lesions

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                • #9
                  I've searched the internet for scholarly articles on this subject. There are really quite a few, although the population sample in each study is very small. This article really gets into the weeds of this subject. American Journal of Clinical Nutrition, "Difference in resting metabolic rate between paraplegic and able-bodied subjects are explained by differences in body composition." http://ajcn.nutrition.org/content/77/2/371.full

                  In addition to body composition and muscle mass, age seems to play a role as well. Take NL. I ran her numbers through a basal metabolic rate (BMR) calculator. At her current age her estimated BMR is 1.013 calories per day. At half her age, with all other factors, weight and height the same, her BMR is 1,183 calories per day. Does this indicate that metabolism slows as we age, assume that we become less active as we age, a bit of both, hormonal changes, etc.?

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                  • #10
                    GREAT POINT
                    Originally posted by Bonnette View Post
                    It might be lower, due to differences in muscle mass between SCI and non-SCI people - but other factors might enter in, like spasticity (which is akin to isometric exercise, and can be pretty constant - even at rest).
                    THX GJ. i'll read this.
                    Originally posted by gjnl View Post
                    I've searched the internet for scholarly articles on this subject. There are really quite a few, although the population sample in each study is very small. This article really gets into the weeds of this subject. American Journal of Clinical Nutrition, "Difference in resting metabolic rate between paraplegic and able-bodied subjects are explained by differences in body composition." http://ajcn.nutrition.org/content/77/2/371.full

                    In addition to body composition and muscle mass, age seems to play a role as well. Take NL. I ran her numbers through a basal metabolic rate (BMR) calculator. At her current age her estimated BMR is 1.013 calories per day. At half her age, with all other factors, weight and height the same, her BMR is 1,183 calories per day. Does this indicate that metabolism slows as we age, assume that we become less active as we age, a bit of both, hormonal changes, etc.?
                    Bike-on.com rep
                    John@bike-on.com
                    c4/5 inc funtioning c6. 28 yrs post.
                    sponsored handcycle racer

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                    • #11
                      I found this one too and agree seems on high side.
                      Originally posted by mrb View Post
                      http://sci.washington.edu/info/forum...ition_2011.asp has useful info but I found over estimates the number of calories a high level tetraplegic can eat, 1500 keeps me at the same weight, 1200 and I slowly lose weight.
                      Bike-on.com rep
                      John@bike-on.com
                      c4/5 inc funtioning c6. 28 yrs post.
                      sponsored handcycle racer

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                      • #12
                        shee 1000 for me but I have always burned cal slow

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                        • #13
                          I looked into this stuff right after my injury. Unfortunately, at that point I was focused on my hope of recovery so the last thing I wanted to do to my badly-damaged body was calorie restriction. One of my doctors (a personal friend) dug into the literature and came up with a diet that he felt was suited to axon growth (higher cholesterol, fish oil and folate to mimic embryonic nutrition). Between that diet and the voracious appetite of a competitive cyclist body that didn't adjust its hunger signals, I put on about 35 lbs (165-200). It's less alarming than it sounds as 165 was my racing weight while 180 is my winter weight so really more like 20 lbs.

                          As an athlete I knew a bunch about general and sports nutrition. I actually would get "bod pod" bodyfat measurements every year as part of setting my nutrition plan every Spring. Another part of that evaluation was to measure my metabolic rate at rest using a breathing test. I think it measures ammonia which is a byproduct of basic metabolism. I guess I should do that evaluation again.

                          Anyway, I'm a spastic T3 Para (complete) and I have to keep my kcals under 1700 to keep my girth in check.
                          T3 complete since Sept 2015.

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                          • #14
                            Well this thread got me motivated so I set up an appointment with the sports nutritionist and did the metabolism study again. It's not pretty.
                            I went from a daily calorie allowance of around 2400 kcals to 1571 kcals on today's test. Actually my resting metabolic rate is only 1107 kcals but she's estimating 464 kcals for daily moving around, etc.

                            Of course any exercise adds to this but getting accurate estimates of calorie burn for "accessible" exercise is very difficult. Like, how many calories are burned by an EasyStand Glider? Even handcylces are likely estimating wrong if you use a bicycle setting since bicycling engages both back and abdomen while an SCI handcyclist might have neither.
                            T3 complete since Sept 2015.

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                            • #15
                              why the big drop in kcals? just aging? how is this test done??
                              Bike-on.com rep
                              John@bike-on.com
                              c4/5 inc funtioning c6. 28 yrs post.
                              sponsored handcycle racer

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