High levels of physical activity can counteract the serious health damage caused by poor sleep


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Levels of physical activity above or above the recommended weekly amounts may counteract the serious health damage associated with poor sleep quality, suggests a comprehensive long-term study, published online in the British Journal of Sports Medicine.

Those with poorer sleep quality and less exercise had a higher risk of death from heart disease, stroke, and , indicate the findings, which prompted researchers to suggest a likely synergy between the two activities.

Both of us and sleep deprivation are independently associated with an increased risk of death and / or cardiovascular disease and cancer. But it is unclear if they could exert a combined effect on .

To delve deeper into this, the researchers obtained information provided by 380,055 middle-aged men and women (55 years of average age) who participated in the UK Biobank study. The UK Biobank tracks the of more than half a million between the ages of 37 and 73, who were recruited from across the UK between 2006 and 2010.

Participants provided information about their normal weekly , which were measured in equivalent metabolic task minutes (MET). They are roughly equivalent to the amount of energy (calories) spent per minute of physical activity.

For example, 600 minutes of MET per week is the equivalent of 150 minutes of moderate-intensity activity, or more than 75 minutes of vigorous-intensity physical activity per week.

Physical activity levels were classified into: high (1200 or more minutes of MET / week); medium (from 600 to less than 1200); or low (from 1 to less than 600); and no moderate to vigorous physical activity, according to World Health Organization guidelines.

Sleep quality was classified by a sleep score of 0 to 5 derived from chronotype (preference for “night owl” or “morning lark”), sleep duration, insomnia, snoring, and daytime sleepiness: healthy 4+); intermediate (2-3); or poor (0-1).

A dozen combinations of physical activity and sleep patterns were derived from the information provided.

Participants ’health was then monitored for an average of 11 years until May 2020 or even death, whichever came first, to assess the risk of dying from any cause and everything. types of cardiovascular disease; coronary heart disease; ictus; all kinds of cancer; and lung cancer.

During the surveillance period, 15,503: 4095 died from any type of cardiovascular disease and 9064 were from all types of cancer.

Of these, 1932 people died because of the coronary , 359 for a stroke (hemorrhagic), 450 for a blood clot stroke (ischemic) and 1595 for lung cancer.

About 223,445 (59%) participants were part of the high physical activity group; 57,771 (15%) in the middle group; 39,298 (10%) in the low group; and 59, 541 (16%) in the non-moderate to vigorous physical activity group.

More than half (56%) of participants had a healthy sleep pattern; 42% were classified as intermediate quality sleep; and 3% were classified as sleeping poor. (The figures are rounded up.)

The youngest, the women, the thinnest, the luckiest economists, ate more fruits and vegetables, spent less of the day sitting, had no mental health problems, never smoked, did no shifts, drank less alcohol and had more physical care have healthier sleep scores.

The lower the sleep score, the higher the risk of death from any cause, from all types of cardiovascular disease and from ischemic stroke.

Compared with those with a high combination of physical activity + healthy sleep score, those at the other end of the scale, without moderate to vigorous physical activity + poor sleep combination, had the highest risks of death from any cause (57% higher).

They also had the highest risk of death from any type of disease (67% higher), of any type of cancer (45% higher), and of (91% higher).

Lower levels of physical activity amplified the unfavorable associations between poor sleep and all health outcomes, with the exception of stroke.

It is an observational study and, as such, cannot establish causality, the researchers acknowledge. The study was also based on self-reported data and key information on sleep patterns and physical activity was collected only at a given time and excluded potentially influential factors, such as type of work and size of sleep. home.

However, the researchers conclude: “Physical activity levels equal to or greater than the WHO guideline (600 metabolic equivalent work / week minutes) eliminated most of the harmful associations of bad sleep and mortality.” .

The findings give weight to efforts to target both physical activity and sleep quality in order to improve health, they say.

“As emerging evidence supports a synergistic effect of sleep and sleep [physical activity] on health outcomes, future trials aimed at both behaviors simultaneously are warranted, ”they add.

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More information:
Sleep and physical activity in relation to mortality from all causes, cardiovascular disease and cancer, British Journal of Sports Medicine (2021). DOI: 10.1136 / bjsports-2021-104046

Citation: High levels of physical activity can counteract the serious damage to health resulting from sleep deprivation (2021, June 29) recovered on June 29, 2021 at https://medicalxpress.com/news/2021-06- high-physical-counter-health-poor.html

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