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The secret to staying strong even in your old age? Exercise regularly

In a study, people who exercised regularly as youth showed much healthier muscles at the cellular level in old age.

By: IANS | Toronto |
March 31, 2016 2:18:09 pm
old age, fitness, strength, strong at old age, muscle mass, motor units, regular exercise, benefits of regular exercise Regular exercise over long period of time counters negative effects of ageing, helping one retain muscle mass and remain strong even at old age. (Source: Thinkstock Images)

The ‘secret’ to staying strong as we age is superb fitness — that can be achieved by regular exercise — suggests new research. The study found that people who were elite athletes in their youth or later in life have much healthier muscles at the cellular level compared to those of non-athletes.


The study — published in the Journal of Applied Physiology — compared world-class track and field athletes in their 80s with people of the same age who are living independently. “One of the most unique and novel aspects of this study is the exceptional participants,” said researcher Geoff Power, professor at University of Guelph in Ontario, Canada. “These are individuals in their 80s and 90s who actively compete in world masters track and field championships. We have seven world champions. These individuals are the creme de la creme of ageing,” Power noted.

The study found that athletes’ legs were 25 per cent stronger on average and had about 14 per cent more total muscle mass. In addition, the athletes had nearly one-third more motor units in their leg muscles than non-athletes. More motor units — consisting of nerve and muscle fibres — mean more muscle mass and subsequently greater strength.

With normal ageing, the nervous system loses motor neurons — leading to a loss of motor units, reduced muscle mass, less strength, speed and power. That process speeds up substantially past age 60. “Therefore, identifying opportunities to intervene and delay the loss of motor units in old age is of critical importance,” Power said.

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