Offset the negative impact of sitting by doing 22-minute exercise daily

  • Living
  • Thursday, 30 Nov 2023

A new research suggests that just 22 minutes per day of brisk walking, housework or jogging can offset the health effects of too much sitting down. — dpa

JUST 22 minutes per day of brisk walking, housework or jogging can offset the negative health effects of too much sitting down, research has suggested.

Experts found that people who sit for long periods – such as in an office job or watching TV – are more likely to die earlier, but moderate-to-vigorous physical activity (MVPA) eliminates this risk.

Examples of moderate activity include very brisk walking (6.5km/h or faster), heavy cleaning such as washing windows or mopping, cycling at 16-19km/h, or badminton.

Vigorous activity includes hiking, jogging at 9.5 km/h or faster, shovelling, fast cycling, a football game, basketball or tennis.

In the new study, published online in the British Journal of Sports Medicine, experts examined data for 11,989 people aged over 50, half of whom where women, from Norway, Sweden and the US.

People in the study had worn activity trackers which measured their MPVA.

In all, 5,943 people spent fewer than 10.5 hours sitting down every day while 6,042 spent 10.5 or more hours being sedentary. Over a five-year follow-up, 6.7% (805) of the people died.

Offsetting negative effects

The research showed MPVA for 22 minutes each day offset the negative effects of being sedentary and eliminated the risk of dying early due to prolonged sitting down.

Author Edvard Sagelv, from the Arctic University of Norway, told the PA news agency: “In our study, we found that only those people doing more than 12 hours per day sitting had a higher risk of death.

“We are talking about any sitting behaviour – such as being in the office or watching TV for long periods of time.

“In our study, every minute higher MVPA showed a lower risk of death – meaning if people were doing less than 22 minutes (such as 10 minutes) there was still a lower risk of death.

“However, doing 22 minutes eliminated the higher risk of death from sedentary time.

“This means that if doing 22 minutes or more per day, there was no excess risk from sedentary time.

“And, if doing more than 22 minutes per day, there was a lower risk of death overall. Basically, the more the better.”

The overall research team concluded: “Efforts to promote physical activity may have substantial health benefits for individuals and small amounts of MVPA may be an effective strategy to ameliorate mortality risk associated with high sedentary time.”

Regina Giblin, senior cardiac nurse at the British Heart Foundation, said: “This research supports previous findings that show the negative effects of long periods sitting down and the positive impact of exercise.

“It’s previously been shown that being sedentary for long periods increases the risk of heart and circulatory disease.

“There are some simple tips that can help to spend less time sitting down.

“Walking away from your computer screen at regular intervals, going for a walk or cooking a healthy meal from scratch are ways to incorporate active time into your day.

“Being active can help you control your weight, reduce your blood pressure and improve your mental health.” – dpa

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