Tuesday March 26, 2019

Why Exercise on Empty Stomach May be Better for Your Health

This is the first study to show that feeding prior to acute exercise affects post-exercise adipose tissue gene expression

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Exercise
Exercise may cut the risk of stroke in menopausal women. Pixabay

If you have been wondering whether it is better to eat or fast before a workout, researchers now have an answer. A new study has found that exercise on empty stomach is better for your health in the long term.

The study analysed effects of eating versus fasting on gene expression in adipose (fat) tissue in response to exercise.

After eating, adipose tissue “is busy responding to the meal and a bout of exercise at this time will not stimulate the same (beneficial) changes in adipose tissue”, explained corresponding author of the study Dylan Thompson from University of Bath in Britain.

“This means that exercise in a fasted state might provoke more favourable changes in adipose tissue, and this could be beneficial for health in the long term,” Thompson added.

“We propose that feeding is likely to blunt long-term adipose tissue adaptation to regular exercise,” the researchers noted in the study published in the American Journal of Physiology — Endocrinology and Metabolism.

The study participants were a group of overweight males who walked for 60 minutes at 60 per cent maximum oxygen consumption on an empty stomach and, on another occasion, two hours after consuming a high-calorie carbohydrate-rich breakfast.

The research team took multiple blood samples after eating or fasting and after exercising.

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Representational image. Pixabay

The researchers also collected fat tissue samples immediately before and one hour after walking.

Gene expression in the adipose tissue differed significantly in the two trials.

The expression of two genes, PDK4 and HSL, increased when the men fasted and exercised and decreased when they ate before exercising.

The rise in PDK4 likely indicates that stored fat was used to fuel metabolism during exercise instead of carbohydrates from the recent meal.

Also Read: Even Light Exercises Have Health Benefits

HSL typically increases when adipose tissue uses stored energy to support increased activity, such as during exercise, Thompson said.

These results reinforce the view that “adipose tissue often faces competing challenges,” Thompson wrote.

“This is the first study to show that feeding prior to acute exercise affects post-exercise adipose tissue gene expression,” the study said. (Bollywood Country)

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13 Million in Congo Suffer from ‘Hunger’ and ‘Malnutrition’: UN

U.N. is appealing for $1.65 billion in humanitarian aid for the country this year - more than double the $700 million plus that it raised last year to help 8.5 million people

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FILE - A Congolese boy has his arm measured for malnutrition in a clinic run by medical charity Medecins Sans Frontieres in the remote town of Dubie in Congo's southeastern Katanga province, March 18, 2006. VOA

The number of people needing humanitarian aid in Congo has increased dramatically in the past year to 13 million and “hunger and malnutrition have reached the highest level on record,” the head of the U.N. children’s agency said Monday.

UNICEF’s Executive Director Henrietta Fore told a news conference that 7.5 million of those needing aid are children, including 4 million suffering from acute malnutrition and over 1.4 million from severe acute malnutrition “which means that they are in imminent risk of death.”

U.N. humanitarian chief Mark Lowcock, who just returned from a visit to Congo with Fore, said the U.N. is appealing for $1.65 billion in humanitarian aid for the country this year – more than double the $700 million plus that it raised last year to help 8.5 million people.

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U.N. is appealing for $1.65 billion in humanitarian aid for the country this year. Pixabay

He said the worsening humanitarian situation is the result of economic stresses including volatility in commodity prices and the turbulent political situation surrounding December’s elections, compounded by violence, increased displacement and the world’s second-largest Ebola outbreak. Fore added that farmers fleeing with their families and drought in some areas also contributed.

She said the difficulty is that last year’s U.N. appeal was only half funded, and if that same amount is contributed this year it will only be a quarter of this year’s appeal, “and the needs are immense.”

Fore cited more grim statistics: 2 million people were newly displaced last year; 7.3 million children are out of school; 300,000 children die each year before their fifth birthday; 3 in 10 women are reported to be victims of sexual violence; and in January alone there were 7,000 cases of measles and 3,500 cases of cholera.

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UNICEF and its partners are providing psycho-social support, food and material assistance to the children, she said. Pixabay

Congo’s Health Ministry said Monday that the Ebola epidemic has now exceeded 1,000 cases, with a death toll of 629.

Fore said about 30 percent of the cases are children, and UNICEF has identified about 1,000 children who have been orphaned or left unaccompanied while their parents are isolated in Ebola treatment wards.

UNICEF and its partners are providing psycho-social support, food and material assistance to the children, she said.

In the major city of Bunia close to the epidemic’s center, Fore said U.N. and Red Cross officials visited a kindergarten where Ebola survivors who cannot get the virus were caring for orphaned and unaccompanied children.

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Congo’s Health Ministry said Monday that the Ebola epidemic has now exceeded 1,000 cases, with a death toll of 629. Pixabay

The U.N. officials also visited Goma, Beni and Butembo and the capital Kinshasa where Lowcock said they had “extremely constructive talks” with Congo’s new president, Felix Tshisekedi.

ALSO READ: Military-Backed Party in Lead in Thailand’s Election

“We were encouraged by the new president” who said he would like to work closely with the U.N. on humanitarian issues and problems related to the millions of displaced people, the undersecretary-general for humanitarian affairs said.

“Congo is a country where progress is possible,” Lowcock said, pointing to lower infant mortality, more children in school and Kinshasa becoming a modern African capital. (VOA)