Navigation Links
Exercise counters the physiological effects of Christmas excess
Date:12/14/2013

Daily exercise lessens many of the harmful physiological effects of short-term overeating and inactivity, shows a new study [published 15 December] in The Journal of Physiology, which is well timed with the Christmas holiday approaching.

Earlier studies have found that even a few days of energy surplus where you consume more calories than you burn brings detrimental health impacts. This new study shows that a daily bout of exercise generates vast physiological benefits even when you consume thousands of calories more than you are burning. Exercise clearly does a lot more than simply reduce the energy surplus.

James Betts, one of the researchers from The University of Bath, says: "This new research shows that the picture is more sophisticated than 'energy' alone: exercise has positive effects even when we are actively storing energy and gaining weight."

After just one week of overeating, people being monitored showed poor blood sugar control and their fat cells were expressing genes that lead to unhealthy metabolic changes and disrupted nutritional balance. However, these negative effects were markedly less in those who were exercising.

Jean-Philippe Walhin, a researcher on the study, says: "Our research demonstrates that a short period of overconsumption and reduced physical activity leads to very profound negative changes in a variety of physiological systems but that a daily bout of exercise stops most of these negative changes from taking place."

In the study, 26 healthy young men were asked to be generally inactive in their daily activities. Half of the group then exercised daily on a treadmill for 45 minutes. Everyone was asked to overeat: the non-exercising group increased their caloric intake by 50 per cent, whilst the exercising group increased by 75 per cent, so everyone's net daily energy surplus was the same.

Dr Dylan Thompson, senior author on the paper, says: "A critical feature of our experiment is that we matched the energy surplus between groups so the exercise group consumed even more energy and were still better off at the end of the week."

After one week, the groups had blood insulin measurements and biopsies of fat tissue taken, with striking results. The non-exercising group showed a significant and unhealthy decline in their blood sugar control, and their fat cells were overexpressing genes linked to unhealthy metabolic changes and were under-expressing genes involved in well-functioning metabolism. However, the exercising group had stable blood sugar levels and their fat cells showed less 'undesirable' genetic expression.

Jean-Philippe Walhin, a researcher on the study, says, "Short-term overfeeding and reduced physical activity had a dramatic impact on the overall metabolic health of the participants and on various key genes within fat tissue and exercise prevented these negative changes even though energy was still being stored."

Dr Dylan Thompson says: "If you are facing a period of overconsumption and inactivity, which is probably quite common around Christmas time, then our study shows that a daily bout of exercise will prevent many of the negative changes from taking place even though you are gaining weight."

The effects are obvious, but the underlying causes will need further study to be determined. The findings are likely to apply to other groups, like older adults and women, and perhaps to lesser amounts of training.


'/>"/>

Contact: Lucy Holmes
LHolmes@physoc.org
44-020-726-95727
Wiley
Source:Eurekalert

Related biology news :

1. Regular exercise in middle age protects against muscle weakness later in life
2. Exercise during pregnancy gives newborn brain development a head start
3. Research reveals roles for exercise and diet in aging, depression
4. For obese teen girls, aerobic exercise may trump resistance training in health benefits
5. Moderate exercise not only treats, but prevents depression
6. Biomedical Advanced Research and Development Authority (BARDA) Exercises Option with Pfenex Inc. To Extend Contract and Increase Funding for the Development of a Recombinant Protective Antigen (rPA) Based Anthrax Vaccine
7. Doubling the daily allowance of protein intake with diet and exercise protects muscle loss
8. MARC travel awards announced for the Grant Writing Seminar & Practical Exercises Workshop
9. Watermelon juice relieves post-exercise muscle soreness
10. UEA research shows moderate exercise could be good for your tendons
11. Exercise rescues mutated neural stem cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... 11, 2017 Research and Markets has announced ... report to their offering. ... global eye tracking market to grow at a CAGR of 30.37% ... Tracking Market 2017-2021, has been prepared based on an in-depth market ... landscape and its growth prospects over the coming years. The report ...
(Date:4/6/2017)... Forecasts by Product Type (EAC), Biometrics, Card-Based ... & Logistics, Government & Public Sector, Utilities / Energy ... Nuclear Power), Industrial, Retail, Business Organisation (BFSI), Hospitality & ... for a definitive report on the $27.9bn Access Control ... ...
(Date:4/5/2017)... KEY FINDINGS The global market ... CAGR of 25.76% during the forecast period of 2017-2025. ... for the growth of the stem cell market. ... MARKET INSIGHTS The global stem cell market is segmented ... The stem cell market of the product is segmented ...
Breaking Biology News(10 mins):
(Date:8/15/2017)... ... , ... Kapstone Medical is proud to announce that it has ... and inventors develop and safeguard their latest innovations. The company has grown from ... of clients in the United States and around the world. , Company Founder ...
(Date:8/15/2017)... Pittsburgh, PA (PRWEB) , ... August 15, 2017 ... ... JASIS, one of the largest Asian exhibitions for analytical and scientific instruments. This ... Pittsburgh), will be “New Approaches in Mass Spectrometry for Bioanalytical Applications.” This dynamic ...
(Date:8/15/2017)... ... August 15, 2017 , ... Kenall, a ... downlights designed to stay tightly sealed and perform efficiently for years. The downlights ... location listings just aren't enough, such as: hospitals; behavioral health facilities; cleanrooms; containment ...
(Date:8/15/2017)... (PRWEB) , ... August 15, 2017 , ... ... and is threatened by various biotic and abiotic factors. During this educational webinar, ... history of coffee, as well as gain a better understanding of how genomics ...
Breaking Biology Technology: