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supreme
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Well that's a trick question
Yes & no for the answer:
yes that a lower HR zone of 60-70% uses a higher % of fat. - all activity uses a mix of carbs & fat for energy, the lower the intensity, the more oxygen usually available to the body, the higher the % of fat stores used for energy - but since the activity is lower in intensity the lower the overall calorie requirement.
As intensity increases, the more the body needs a faster acting source of energy so it increases the % of carbs used for energy, for as you approach your anaerobic threshold you can not utilize the oxygen you consume (especially if poor CV fitness)
What counts most ofall in dropping bodyfat is total calories expended. So here's an example why high intensity interval is the way to go. (Note I am going to use very simple, unrealistic #'s to demonstrate)
Subject A: Big Bertha waddles on the treadmill reading a magazine, drooling at the dunkin donuts commercial on the tv.
After 1 hour of 60% CV work she has expended 1000 total calories of which 600 (60% of 1000) are from fat stores. Since the duration was greater than 30 min, if she does this often or long enough she will also use muslce for energy for once the carb stores run low, gluconeogenesis will provide some energy for remember we always burn a mix of fat & carbs- this is why you never see a 250 pound competitve marathoner, during sustained activity (>30 min) the body breaks down muscle to provide some carbs.
Subject B: Hot blonde in tight shorts with visible thong line does jogging / sprinting intervals on the treadmill for 30 minutes. Due to higher intensity only 50% cal from fat. total cal. expenditure = 2000 cal ; 50% from fat is 1000 cal Also her duration was only 30 min and not sustained high intensity so she probably burned no muscle which in turn keeps her metabolism elevated for muscle is a metabolically active tissue that requires calories.
So we see that the hottie in the thong did more work in 1/2 the time and burned up more fat calories every though pig queen worked out longer and burned a higehr % of fat calories. i.e 50% of 2000 is greater than 60% of 1000.
so now you know why intensity and total cal. expenditure is the key to effecient cardio for fat los NOTE: I am talking about healthy individuals with no medical problems and NOT endurance athletes who need long duration training.
Side note: competitive bodybuilders do long duration low intensity cardio to preserve every bit of muscle and not tap into energy stores for weight training the addition of: Steroids, GH, clen, T3 etc allow long duration training without loss of muscle mass.
S
Yes & no for the answer:
yes that a lower HR zone of 60-70% uses a higher % of fat. - all activity uses a mix of carbs & fat for energy, the lower the intensity, the more oxygen usually available to the body, the higher the % of fat stores used for energy - but since the activity is lower in intensity the lower the overall calorie requirement.
As intensity increases, the more the body needs a faster acting source of energy so it increases the % of carbs used for energy, for as you approach your anaerobic threshold you can not utilize the oxygen you consume (especially if poor CV fitness)
What counts most ofall in dropping bodyfat is total calories expended. So here's an example why high intensity interval is the way to go. (Note I am going to use very simple, unrealistic #'s to demonstrate)
Subject A: Big Bertha waddles on the treadmill reading a magazine, drooling at the dunkin donuts commercial on the tv.
After 1 hour of 60% CV work she has expended 1000 total calories of which 600 (60% of 1000) are from fat stores. Since the duration was greater than 30 min, if she does this often or long enough she will also use muslce for energy for once the carb stores run low, gluconeogenesis will provide some energy for remember we always burn a mix of fat & carbs- this is why you never see a 250 pound competitve marathoner, during sustained activity (>30 min) the body breaks down muscle to provide some carbs.
Subject B: Hot blonde in tight shorts with visible thong line does jogging / sprinting intervals on the treadmill for 30 minutes. Due to higher intensity only 50% cal from fat. total cal. expenditure = 2000 cal ; 50% from fat is 1000 cal Also her duration was only 30 min and not sustained high intensity so she probably burned no muscle which in turn keeps her metabolism elevated for muscle is a metabolically active tissue that requires calories.
So we see that the hottie in the thong did more work in 1/2 the time and burned up more fat calories every though pig queen worked out longer and burned a higehr % of fat calories. i.e 50% of 2000 is greater than 60% of 1000.
so now you know why intensity and total cal. expenditure is the key to effecient cardio for fat los NOTE: I am talking about healthy individuals with no medical problems and NOT endurance athletes who need long duration training.
Side note: competitive bodybuilders do long duration low intensity cardio to preserve every bit of muscle and not tap into energy stores for weight training the addition of: Steroids, GH, clen, T3 etc allow long duration training without loss of muscle mass.
S
