Exercise More Beneficial On An Empty Stomach, Study Finds

Posted: Apr 10 2017, 2:06pm CDT | by , Updated: Apr 10 2017, 2:12pm CDT, in News | Latest Science News

 
Exercise More Beneficial on an Empty Stomach, Study Finds
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For the first time, researchers have examined the effects of eating versus fasting on gene expression during exercise

Working out on an empty stomach appears to be the most preferable way among exercise enthusiasts. But many are still unsure whether it is better to fuel up before exercising or eat nothing before going to the gym

To find out, researches from Bath University in UK studied a group of overweight males. Participants were asked to walk for 60 minutes on an empty stomach and, on another occasion, two hours after having a high-calorie breakfast.

Researchers took multiple blood and fat tissue samples immediately before and after each process and found that exercise on empty stomach may produces better results. It helps burn more body fat and boosts metabolism, leading to faster weight loss. This study is the first to quantify the effects of both eating and fasting on gene expression and showed that each of them is leading to different consequences.

The expression of two genes, PDK4 and HSL, increased when participants fasted and exercised and decreased when they ate before exercising. Researchers explain that the rise in PDK4 is likely caused by the more use of stored fat during exercise instead of carbohydrates from the recent meal, while HSL typically increases when fat tissue taps into stored energy to support increased physical activity.

In that case, people with weight loss goals might find an advantage in walking up and exercising before the breakfast.

Eating before exercise complicates the role of fat tissue. After eating, fat tissues are busy responding to the meal, so an exercise at this time will not produce the same benefits as without eating. This means that exercise on empty stomach could offer more benefits to health in the longer term.

“This is the first study to show that feeding prior to acute exercise affects post-exercise adipose tissue gene expression and we propose that feeding is likely to blunt long-term adipose tissue adaptation to regular exercise.” Study concludes.

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Hira Bashir covers daily affairs around the world.

 

 

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