Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Exercise after meals may aid weight loss

Main messages:
1.New research has found that exercise after meals may be effective in promoting weight loss
2.This is because exercise causes a short-term increase in the levels of hormones that reduce appetite

Exercise after meals may help you lose weight. Research in this month’s Journal of Endocrinology shows that exercise after meals reduces appetite in the short-term by increasing the level of hormones that tell our brain when our stomach is full. When the energy sweated off through exercise is taken into account, at the next mealtime people who have exercised consume less calories overall than people who haven’t.

Researchers at the University of Surrey and Imperial College London, led by Dr Denise Robertson, studied how exercise after a meal affects hunger levels, the amount of food eaten at the next meal and the level of hormones produced by the gut. These ‘hunger’ hormones, called PYY, GLP-1 and PP tell your brain when your stomach is full. Twelve volunteers were fed a standardised breakfast. Half of them then exercised for an hour while the other half sat quietly. Both groups were left for another hour and then allowed to eat as much as they liked.

Levels of ‘hunger’ hormones increased during and immediately after exercise with volunteers also reporting feeling less hungry during this time. Unsurprisingly, people who exercised burned more calories (492 kcal) than those who sat quietly (197 kcal). When given the chance to eat afterwards, people who had exercised ate more (913 kcal) than people who hadn’t (762 kcal). However, when the amount of energy burned during exercise was taken into account, people who had exercised took in less calories overall than people who didn’t (421 kcal for exercise group vs. 565 kcal for non-exercise group).

Approximately 60% of people in the UK are now overweight. A major cause of this is suspected to be the huge decrease in our physical activity over the last 20 years. Obesity is linked to many health problems including heart disease, stroke, diabetes and cancer and is responsible for 9000 premature deaths each year in England alone. This study provides further evidence that exercise may aid weight loss and weight maintenance as part of a healthy balanced lifestyle.

Researcher Dr Denise Robertson said:

“In the past we have been concerned that, although exercise burns energy, people subsequently ate more after working out. This would cancel out any possible weight reduction effects of exercise. Our research found that moderate exercise after a meal may decrease hunger during the exercise itself by increasing the amount of hormones that tell the brain our stomach is full. At the next mealtime, when the amount of energy burned through exercise is taken into account, people who had exercised consume fewer calories than those who hadn’t. This is an initial study where we only examined a small number of people. We now need to carry out a larger study to confirm this effect, and the mechanisms of how it occurs.

Obesity is one of the major health problems facing people in the UK today. It can lead to many serious medical conditions such as diabetes and heart disease. Our research shows that exercise may alter people’s appetite to help them lose weight and prevent further weight gain as part of a healthy, balanced lifestyle.”

Jennie Evans | alfa
Further information:

More articles from Health and Medicine:

nachricht New potential cancer treatment using microwaves to target deep tumors
12.10.2016 | University of Texas at Arlington

nachricht Breakthrough in Mapping Nicotine Addiction Could Help Researchers Improve Treatment
04.10.2016 | UT Southwestern Medical Center

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Innovative technique for shaping light could solve bandwidth crunch

20.10.2016 | Physics and Astronomy

Finding the lightest superdeformed triaxial atomic nucleus

20.10.2016 | Physics and Astronomy

NASA's MAVEN mission observes ups and downs of water escape from Mars

20.10.2016 | Physics and Astronomy

More VideoLinks >>>