A team of researchers analyzed data from the National Institute of Health’s Diet and Health Study, which tracked people aged between 50 and 71 from six states and metropolitan areas. After all necessary calculations were made, the scientists concluded that nearly 30% of the previously healthy participants reported difficulty walking or being unable to walk at all.
Lead author of the research Dr Loretta DiPietro, chair of the department of Exercise and Nutrition Sciences, says: “Sitting and watching TV for long periods – especially in the evening – has got to be one of the most dangerous things that older people can do because they are much more susceptible to the damages of physical inactivity.”
A team of researchers from the University of Liverpool in the United Kingdom found that switching from physically active regimen to physical inactivity for only 14 days led to metabolic changes in young healthy adults raising the risk of chronic diseases, such as type 2 diabetes, and heart disease, as well as the risk of premature death.
For their study, the researchers enrolled 28 young healthy adults with an average age of 25. Their mean BMI was 25, and they were physically active. During 14 days, they significantly reduce their physical activity and underwent extensive health checks before and after the study.
The scientists found that reducing physical activity for just 14 days led to a loss of skeletal muscle mass in the participants by an average of 0.36 kilograms and an increase of body fat. Additionally, they noticed a reduction in cardiorespiratory fitness and the function of mitochondria, which are the cells’ powerhouses.
A new study investigated the impact of a sedentary lifestyle on the biological age of senior women.
Modern science associates the telomere length with ageing and disease. With age, telomeres become shorter until the cells die or transform into oncogenic cells. Short telomeres are connected to cancer, heart diseases, and diabetes.
The team of researchers at the University of California-San Diego, led by Aladdin Shadyab, Ph.D., from the Department of Family Medicine and Public Health at UCSD School of Medicine, examined the effects of a sedentary lifestyle on the age of cells in senior women.
According to the findings of the study, women who exercised for under 40 minutes and spent sitting more than 10 hours per day had biologically older cells compared to women who had been sitting less and exercised more. As the scientists note, low physical activity seemed to account for an eight-year biological age gap between those who exercised and those who did not.
More information about the study you can find here.
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