Moderate-intensity exercise such as brisk walking burns off fat in the muscles, relieving their block of glucose uptake, say researchers.(Shutterstock)
Moderate-intensity exercise such as brisk walking burns off fat in the muscles, relieving their block of glucose uptake, say researchers.(Shutterstock)

Want to fight prediabetes? Choose brisk walking over jogging

According to a new study, regular brisk walking can be more effective than vigorous jogging in bettering
By HT Correspondent | IANS, New York
PUBLISHED ON JUL 19, 2016 01:57 PM IST

According to a new study, regular brisk walking can be more effective than vigorous jogging in bettering glucose control among people with prediabetes.

“When deciding the way to lose weight — by a combination of dieting and exercise or by just exercising alone, chose the latter as a high amount of moderate-intensity exercise is extremely effective,” said lead author William Kraus, Professor at Duke University School of Medicine in the US.

“We believe that one benefit of moderate-intensity exercise is that it burns off fat in the muscles, which relieves the block of glucose uptake by the muscles. That’s important because muscle is the major place to store glucose after a meal,” Kraus explained.

Read: All there’s to know about diabetes and how to beat it

The study appeared online in the journal Diabetologia.

The findings are based on a randomised, six-month study of 150 participants, each of whom was designated as having pre-diabetes based on elevated fasting glucose levels.

Study participants were randomised into four groups.

The first group followed an intervention modelled after the Diabetes Prevention Programme (DPP), considered a gold standard that aims to achieve a 7% body weight reduction over six months.

Moderate-intensity exercise in high amounts is as effective in keeping prediabetes at bay as other vigorous forms of exercises. (Shutterstock)
Moderate-intensity exercise in high amounts is as effective in keeping prediabetes at bay as other vigorous forms of exercises. (Shutterstock)

The programme requires cutting calories, eating a low-fat diet, and exercising. Study participants in this group adopted the diet changes, and performed moderate-intensity exercise equivalent to 7.5 miles of brisk walking in a week.

Other study participants were randomly assigned to receive exercise only, using different amounts and intensities: low-amount at moderate intensity (equivalent to walking briskly for 7.5 miles per week); high-amount at moderate intensity (equivalent to walking briskly for 11.5 miles per week); and high-amount at vigorous intensity (equivalent to jogging for 11.5 miles per week).

“We wanted to know how much of the effect of the DPP (Diabetes Prevention Programme) could be accomplished with exercise alone,” Kraus said.

“And which intensity of exercise is better for controlling metabolism in individuals at risk for diabetes,” Kraus noted.

Read: Adult diabetics four times more since 1980, says WHO

On average, participants in the DPP group had the greatest benefit, with a nine percent improvement in oral glucose tolerance — a key measure of how readily the body processes sugar and an indicator used to predict progression to diabetes.

One of the exercise-only groups came in a close second. Participants in the moderate-intensity, 11.5-mile group saw a 7% improvement in glucose tolerance on average.

The moderate-intensity, 7.5-mile group had a 5% improvement on average.

The lowest improvement was seen among those in the vigorous-intensity, 11.5-mile group, with only a 2% average improvement.

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