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According to a US study, maintaining moderate muscle strength can help adults reduce their risk of developing type 2 diabetes.
The researchers asked 4681 people without diabetes, whose average age was 43, to put pressure on the legs and the bench to measure their muscle strength and to perform treadmill tests to badess their condition. cardiorespiratory form. During an average follow-up period of more than 8 years, 229 participants, or nearly 5%, developed diabetes.
Compared with people whose muscle strength tests had the lowest scores at the beginning of the study period, those with moderate muscle strength had a 32% lower risk of developing diabetes. Higher levels of muscle strength, however, do not seem to have an impact on the risk of future diabetes.
"You do not have to be Hulk to help reduce your risk of diabetes," said Dr. Angélique Brellenthin, co-author of the Iowa State University study. to Ames.
"Performing even a small amount of resistance training, which contributes significantly to muscle strength, can bring great benefits," Brellenthin said via e-mail. "Squats, lunges, push-ups and boards are perfect for beginners."
Moderate muscle strength was badociated with a reduced risk of diabetes even after the researchers had considered a person's aerobic fitness levels as well as risk factors that could contribute to the risk of diabetes, such as antecedents family, smoking, alcohol consumption, obesity and high blood pressure report in Mayo Clinic Acts, online March 11th.
Before considering these other factors, people with high muscle strength had a slightly lower risk of diabetes than the lowest participants. But after taking into account these factors, this advantage has disappeared. "The muscles are very metabolically active and consume a lot of glucose," said Dr. Tahseen Chowdhury of Royal London Hospital in the UK.
"Greater muscle mbad and volume will tend to use more glucose, but will also tend to be more sensitive to the effects of insulin, which increases[s] glucose uptake, "said email Chowdhury, who did not participate in the study.
The study was not a controlled experiment designed to prove whether or how muscle strength could have a direct impact on the development of diabetes. Nor has it been designed to determine the most appropriate types of training for diabetes prevention.
"The best way to prevent diabetes is to avoid a high-calorie diet and to regularly engage in moderate-to-high aerobic physical activity for at least 30 minutes 5 to 6 days a week," said Dr. Stefano Volpato of the University of Washington. Ferrara in Italy.
"Resistance training exercises are useful for increasing muscle mbad, but the results of this study are too preliminary to recommend this type of intervention to prevent diabetes," Volpato said, not involved in the treatment. Study, by e-mail.
As the risk of diabetes increases with age, it is possible that the results will be different for adults over 65, said Dr. Alan Sinclair, Director of the Foundation for Diabetes Research in People Diabetes Frail Ltd and Diabetes Chair at Kings. College London.
"The study would have been more interesting and relevant if the average age of the subjects was greater than 65 years, where reduced muscle strength meant more than the risk of diabetes – it also involved the ability to walk, the risk of falling , the risk of frailty and the loss of independence, "said Sinclair, who did not participate in the study, by e-mail.
Even in this case, "the study emphasizes the importance that maintaining a moderate degree of muscle strength can confer some protective value against the development of diabetes," Sinclair said.
-Lisa Rapaport
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