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Lower Death Risk : Why You Should Commit To Muscle Strengthening Activities | Details Inside | 2YODOINDIA

Lower Death Risk : Why You Should Commit To Muscle Strengthening Activities | Details Inside

Regular exercise has a lot of health benefits. But what is the minimum time of exercise require to ensure optimal health, considering everyone’s busy lifestyle?

A data analysis of the available evidence has found that 30 to 60 minutes of muscle-strengthening activity every week is link to a 10%-20% lower risk of death from all causes, and from cardiovascular disease, diabetes, and cancer, in particular.

The study was publish in the ‘British Journal of Sports Medicine’.

The findings are independent of aerobic exercise.

But the analysis points to a J-shape curve for most outcomes, with no conclusive evidence that more than an hour a week of muscle-strengthening activity reduces the risk further still.

Physical activity guidelines have recommended regular muscle-strengthening activities for adults, primarily because of the known benefits for skeletal muscle health.

Examples of these activities include lifting weights; working with resistance bands; push-ups, sit-ups, and squats; and heavy gardening, such as digging and shovelling.

Previous research indicate that muscle-strengthening activity is associate with a lower risk of death, but it’s not known what the optimal ‘dose’ might be.

The researchers scoured research databases for relevant prospective observational studies that include adults without major health issues who had monitor for at least 2 years.

The final analysis include 16 studies out of an initial cache of 29.

The earliest study was publish in 2012, and most studies were carry out in the USA, with the rest from England, Scotland, Australia, and Japan.

The maximum monitoring period last for 25 years.

Study participant numbers varied from nearly 4000 to almost 480,000, and range in age from 18 to 97.

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Twelve studies include both men and women; two include men only while three include women only.

All the studies consider aerobic or other types of physical activity as well as muscle-strengthening activities.

The data analysis show that muscle-strengthening activities were associate with a 10%-17% lower risk of death from any cause, as well as death from heart disease and stroke, cancer, diabetes, and lung cancer.

No association was found between muscle strengthening and a reduce risk of specific types of cancer, including those of the bowel, kidney, bladder, or pancreas.

A J-shape curve emerge, with a maximum risk reduction of between 10%-20% at approximately 30-60 minutes/week of muscle-strengthening activities for death from any cause, cardiovascular disease, and all cancer.

An L-shape association was observe for diabetes, with a large risk reduction up to 60 minutes/week of muscle-strengthening activities, after which there was a gradual tapering off.

Joint analysis of muscle strengthening and aerobic activities show that the reduction in risk of death from any cause, cardiovascular disease, and cancer was even greater when these two types of activities were combine, 40%, 46%, and 28% lower, respectively.

The researchers acknowledge certain limitations to their findings, the main one of which was that data from only a few studies were pool for each of the outcomes studied.

The include studies also relied on subjective assessment of muscle-strengthening activities.

Because most of the studies were carry out in the US, the results might not be more widely applicable, caution the researchers, who adds that the include studies were all observational rather than clinical trials.

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Given the J-shape associations, the potential of a higher volume of muscle-strengthening activities on the reduction in risk of death is unclear, they wrote.

But they concluded :

“The combination of muscle strengthening and aerobic activities may provide a greater benefit for reducing all-cause, [cardiovascular disease], and total cancer mortality. Given that the available data are limited, further studies–such as studies focusing on a more diverse population–are needed to increase the certainty of the evidence.”

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