Without a diet, exercise cannot contribute to weight loss
Generally, overweight physicians and nutritionists advise exercising to lose excess pounds. However, a study by Arizona State University in Phoenix showed that more body fat can also be seen at the end of an exercise program. We will tell you why in the following.
Regular exercise and repeated exercise a week are considered by most weight loss people to be a good approach to reducing body fat. They torture themselves in the gym, go jogging and exercise at home. But when in doubt, the body fat percentage is higher than before the start of the training, according to the surprising result of the research team led by Glenn Gaesser from the School of Nutrition & Health Promotion at Arizona State University. Her study was published in the journal "Journal of Strength and Conditioning Research".
Body fat build-up after 12 weeks of training As part of the study, the researchers had 81 overweight women who had previously not exercised any sporting activity undergone a 12-week training program. There were no plans to change the diet. Prior to the program, the participants underwent a health check, which also determined their body mass index and body fat percentage. The scientists also determined the physical performance of the test subjects. The women trained on the treadmill for 30 minutes three times a week. According to the scientists, the physical performance of all participants has improved in the twelve weeks of training. For many women, however, this was not accompanied by a reduction, but by an increase in body fat. "About 70 percent of women had built up at least some fat during the program," said Arizona State University. Therefore, only through sport can no reliable weight reduction be achieved.
Sport works differently individually The study authors come to the conclusion that sport individually has an extremely different effect. This was also reflected, for example, in the fact that the women who had lost weight after four weeks of exercise program tended to lose more weight afterwards. The researchers assume that the women who gained weight probably reduced their exercise alongside the sports program and ate more. Study leader Gaesser explains that given the results of the study, people who start training to lose weight should step on the scales at the latest after one month for checking. "If your weight remains stubbornly unchanged or has increased, you should check your diet and other activities," explains Gaesser.
Diet must be taken into account when losing weight The study clearly shows that exercise can only help you lose weight if the diet is completely hidden. If more calories are added to the body than it burns during exercise, weight gain can be expected. For example, a runner weighing around 70 kilograms burns around 350 calories in half an hour while jogging, which corresponds to the amount of a chocolate bar, reports the news portal "Spiegel Online" and quotes the sports scientist of the Institute for Sports Medicine at the Nuremberg Clinic, Michael Tuttor, with the Statement that "the burn effect of sport is often overestimated". "If you want to lose weight permanently, you have to tweak several settings - this includes nutrition," continues Tuttor.
Improved performance through sport In view of the improved physical performance, which was found in all subjects, sport is generally recommended for both overweight and normal weight despite a possible onset of weight gain. Sports scientist Tuttor also comes to this conclusion in the article by "Spiegel Online" and explains that "the women in the study certainly did something good for their body and their cardiovascular system". (fp)