Leg strength, however, was still preserved at the same level in the heavy weights resistance training group, but fell in the moderate intensity training and comparison groups, possibly because of nervous system changes in response to resistance training, suggest the researchers. And this difference was statistically significant.
As to visceral fat-;the fat that is stored internally around the organs-;levels of this remained the same in the heavy weights resistance training and moderate intensity exercise groups, but increased in the comparison group.
This implies that some parameters may not depend on weight load or exercise intensity in the long term, suggest the researchers.
They acknowledge that the study participants were healthier and more active than average despite having at least one long term condition in 80% of cases, so aren't necessarily representative of the population as a whole.
But they conclude: "This study provides evidence that resistance training with heavy loads at retirement age can have long-term effects over several years. The results, therefore, provide means for practitioners and policy-makers to encourage older individuals to engage in heavy resistance training."
They followed up participants of the LIve active Successful Ageing (LISA) study, a large randomised controlled trial, the results of which showed that strength can be maintained over 12 months after 1 year of heavy resistance training.
At the time, participants who had recently retired and were healthy and active were stratified by sex, weight (BMI), and the ability to get up from a chair without assistance.
leg muscle strength is regarded as a strong predictor of death in older people, so is important to maintain, say the researchers.
Skeletal muscle mass and function naturally decline with advancing age, ultimately often interfering with mobility and autonomy in older people.
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