12/8/2023 0 Comments Bodybuilding basal metabolic rateThe highest calorie group had a daily energy intake of over 1500 kcal more than they needed to maintain their weight at the end of the starvation period. The lowest energy group had a diet with a slight surplus of a few hundred kilocalories more than they needed to maintain their starved bodies. Each group received a diet with a different energy content. Our results showed that subjects’ metabolism – body composition related RMR - was either the same or even higher after starvation (as I mentioned, we have done this analysis 3 times with different equations).Įnergy intake influences metabolism recoveryĪnother important point was that the subjects were divided into four groups during the recovery period. We compared the predicted RMR values with the RMR value that was actually measured for each subject. We used three different RMR prediction equations to obtain precise predictions. We compared subjects' basal metabolism (RMR in relation to each subject’s fat free mass and fat mass) before and after starvation. We analysed the entire recovery period of 20 weeks and we found no sign of metabolic damage. Previous studies haven’t considered the entire recovery period they examined only the 12-week controlled recovery. For this reason, they looked like this by the end of their diet.Ĭomparison of basal metabolism before starvation and after refeeding However, in contrast to bodybuilders, the participants of the Minnesota study didn’t have much muscle mass to start with. That’s the body fat level hard-core bodybuilders reach when they compete. That’s a lot! Their average body fat level at the end of the diet period was 5%. Their target was to lose 1 kg (2.2 lbs) per week. In this experiment, 32 normal-weight, young men were put on a drastic weight loss diet for 24 weeks ( It’s half a year!!!). The data from the Minnesota experiment was used in the past as a support for the metabolic damage hypothesis. If this is the case, it would be devastating, because if your energy expenditure stays low after dieting, but you increase your food intake to pre-dieting levels, then you will regain all the weight you lost.Ī big part of our study was devoted to the Minnesota experiment. Thus, your resting metabolic rate (RMR) decreases because your body doesn’t expend as much energy for all the basal tasks you need to live, such as making the heart beat, for example.ĭoes this metabolic slowing persist after you stop dieting and increase your energy intake? When you start eating less, your metabolism slows down. Metabolic damage is permanent metabolic slowing after dieting.
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