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Oct 17

Does High-Intensity Training Improve the Quality of Life in Older People? – Gilmore Health News

A recent five-year randomized study suggests that the intensity of physical activity has little impact on mortality risk, but that being active is better for quality of life.

High Intensity Exercise

Physical activity is one of the most important public health measures for maintaining good health. Its many benefits are immeasurable. Among other things, it helps to improve body composition and reduce chronic diseases, to adopt other healthy lifestyles, and to influence the expression of certain genes. All these interactions lead to the consensus that physical activity is the cornerstone of good health at any age and reduces the risk of death. A recent randomized study has just been published in the British Medical Journal. It was conducted over a period of five years by Norwegian and Australian researchers on older people and aimed to answer this question: besides the frequency of sport, does its intensity also play a role in increasing life expectancy?

Read Also: Study Establishes the Relationship Between Exercise and a Longer Life Span

In 2012, scientists launched an appeal to people between 70 and 77 years of age in the old Norwegian city of Trondheim, which was founded in 997 by Viking King Olaf Tryggvason. To be included in the study, one did not have to suffer:

Over 6,966 people volunteered. Of course, not all of them were admitted to the study. Exactly 285 people did not meet the criteria, and 5,114 finally decided not to participate. So only 1,567 people participated in the study. They were randomly divided into three groups:

Read Also: Exercise Can Prevent Macular Degeneration and Diabetic Retinopathy According to University of Virginia Researchers

Participants in the study were monitored every six weeks, and after one, three, and five years, key data and exercise compliance were collected. The researchers first wanted to know how these different types of training programs influence the mortality rate. This was their main goal. Secondly, they decided to record and measure changes in cardiorespiratory health and self-reported quality of life. They considered these two factors as important indicators for predicting longevity.

Finally, a comparison of the three groups at the end of the study showed that the effect on mortality between the groups is not significant. This suggests that intensity is not a decisive factor for longevity. In contrast, the respiratory condition was significantly better and the differences in the HIIT and MICT groups were statistically significant compared to the control group for this endpoint. Similarly, individuals in the HIIT group reported improved quality of life at the end of the study.

However, the study has major shortcomings that it does not hide. First, participants in the control group had a higher frequency of physical activity throughout the study and often performed their tasks by doing HIIT-type exercises. It is possible that this makes some of the differences insignificant if they could have been between groups. In addition, more than half of the people in the HIIT group were unable to follow the program requirements strictly and rigorously. There is also a suspicion of bias in the selection, as the recruited participants were all much healthier than those excluded from the protocol. Finally, the authors suggest that future physical activity guidelines, at least for older adults, should be more specific by requiring that at least part of the exercise be performed with high intensity.

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Effect of exercise training for five years on all cause mortality in older adultsthe Generation 100 study: randomised controlled trial

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Does High-Intensity Training Improve the Quality of Life in Older People? - Gilmore Health News

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