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People aged 68 and above who were physically active throughout their life have a healthier ageing muscle that has superior functionality and is more resistant to fatigue compared to inactive individuals, both young and old, according to a recent study led by The Physiological Society.The study was published in the journal, 'The Journal of Physiology'.This was the first study to investigate muscle, stem cell and nerve activity in humans. It has also been found that elderly individuals who keep physically active throughout their adult life, whether by taking part in resistance exercise, ball games, racket sports, swimming, cycling, running and/or rowing had a greater number of muscle stem cells, otherwise known as satellite cells in their muscle.These cells are important for muscle regeneration and long-term growth and protect against nerve decay.46 male participants took part in the study. They were divided into three groups:1. Young sedentary (15)2. Elderly lifelong exercise (16)3. Elderly sedentary (15)They performed a heavy resistance exercise, sitting in a mechanical chair performing a knee extension movement to evaluate muscle function. The amount of force produced was measured. Blood samples were taken, and muscle biopsies were analysed from both legs.The researchers found elderly lifelong exercisers outperformed both the elderly and young sedentary adults.Lead author, Casper Soendenbroe, University of Copenhagen, Denmark said, "This is the first study in humans to find that lifelong exercise at a recreational level could delay some detrimental effects of ageing. Using muscle tissue biopsies, we've found positive effects of exercise on the general ageing population. This has been missing from the literature as previous studies have mostly focused on master athletes, which is a minority group.""Our study is more representative of the general population aged 60 and above, as the average person is more likely to take part in a mixture of activities at a moderate level. That's why we wanted to explore the relation between satellite cell content and muscle health in recreationally active individuals. We can now use this as a biomarker to further investigate the link between exercise, ageing and muscle health," he added."The single most important message from this study is that even a little exercise seems to go a long way when it comes to protecting against the age-related decline in muscle function. This is an encouraging finding which can hopefully spur more people to engage in an activity that they enjoy. We still have much to learn about the mechanisms and interactions between nerves and muscles and how these change as we age. Our research takes us one step closer," he concluded.It was worth noting that the study was only carried out in males and the average age was 73. As the effects of ageing on muscle health become more pronounced at 80+ years, follow up studies are needed to see if the benefits of lifelong exercise are maintained later in life. Further, investigation on recreational activity and muscle health need to be carried out in females.( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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People aged 68 and above who were physically active throughout their life have a healthier ageing muscle that has superior functionality and is more resistant to fatigue compared to inactive individuals, both young and old, according to a recent stud ...