Navigation Links
Large Fluid Intake Won’t Help to Keep Cool for Marathon Runner

Gulping down several litres of water to keep oneself cool may not be a best option, as large fluid intake won’t make much difference, warns scientists for marathon runners//.

With today's temperatures expected to reach 19 degrees, the average runner will potentially lose almost a litre of sweat every hour and reach a body temperature of over 39 degrees, two degrees above normal. The sporting community has long assumed that drinking large amounts of water helps to keep the body's temperature down, which improves performance. A recent study led by Dr Chris Byrne of the University of Exeter shows that the level of fluid intake has absolutely no effect on body temperature or performance.

Dr Chris Byrne, sport scientist from the University of Exeter said: 'We'll see many of today's Marathon runners clutching bottles of water. The conventional view among both scientists and the fitness media is that fully replacing sweat losses by fluid intake during exercise will reduce an athlete's body temperature and improve performance. Our research, which for the first time measured internal body temperature continuously during an actual race, revealed no evidence that fluid intake makes runners cooler or improves performance.'

Dr Byrne and his team monitored a group of male runners taking part in the Singapore Army Half-Marathon, a 21km race that took place in temperatures between 26 and 29 degrees Celsius and 75-90% relative humidity. The night before the race, the runners ingested telemetric temperature sensors, which contain temperature-sensitive quartz crystal oscillators that vibrate at a frequency relative to its surrounding temperature and communicate the temperature by radio wave to a recording device worn by the runner. For previous studies, body temperatures have been taken after races, but this was the first time that researchers have monitored body temperatures continuously throughout a race.

Over half the runners reached body te mperatures exceeding 40 degrees and all lost an average of 1.5 litres of sweat per hour. Runners replaced between 6% and 73% of their sweat losses during the race. There was no relationship between the amount of fluid each runner consumed, his body temperature and overall performance in the race. The highest body temperature observed (41.7°C) was recorded from a runner replacing the greatest amount of his sweat losses (73%) and therefore being the least dehydrated of the study sample.

Dr Byrne concludes: 'I would encourage those people taking part in today's Marathon to be well hydrated before the race, but not to feel they need to drink water throughout the event. Listen to your body and drink if you feel thirsty, but drinking several litres of water will not help you run any faster.'

Source-Eurekalert/
'"/>




Related medicine news :

1. The Link Between Larger Birth Weight And Cancer Risk
2. Worlds Largest Cord Blood Bank to be started in India
3. India Has The Oldest And Largest Collection Of Preserved Mosquitoes – Mosquito Museu
4. Fear Of Dengue Epidemic Looms Large: Fever Kills Five in Pakistan
5. Visualization Found To Be Largely Dependent On The Brain
6. Large Scale Study On H5N1 Conducted
7. Large Scale Multiple Sclerosis Vaccine Trial to Be Initiated By PharmaFrontiers
8. Pre-eclampsia Pronounced With Intake of Vitamins in Large Doses
9. Large Ambulances To Handle Obese patients In Vegas
10. Heart Related Problems-The Largest Killers In Andhra Pradesh
11. Large scale culling of poultry effected at Cote dIvoire following bird flu outbreak.
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... Ky. (PRWEB) , ... October 13, 2017 , ... The ... MPH to become its next President and Chief Executive Officer, succeeding Dr. James C. ... CEO Elect beginning July 1, 2018 until Dr. Puffer’s retirement at the end of ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... alumni Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, along with ... for the primary prevention of cardiovascular diseases during the 15th Annual Women’s ...
(Date:10/13/2017)... OBISPO, Calif. (PRWEB) , ... October 13, 2017 , ... ... or dementia. However, many long-term care insurance companies have a waiver for care if ... the 90-day elimination period, when the family pays for care, is often waived, so ...
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th Annual ... in Milford, NJ. This free event, sponsored by Global Healthcare Management’s CEO, Jon ... fun run is geared towards children of all ages; it is a non-competitive, non-timed ...
(Date:10/13/2017)... ... October 13, 2017 , ... Coveros, ... Development, has been awarded a contract by the Center for Medicare and Medicaid ... to accelerate the enterprise use of Agile methodologies in a consistent and high ...
Breaking Medicine News(10 mins):
(Date:10/4/2017)... Mass. , Oct. 4, 2017  According to the Centers for ... the end of October . PhysicianOne Urgent Care is helping communities across ... Westchester, NY , by offering no-cost* flu shots through the ... as mandated by certain health insurance regulations. ... The best time to get a flu shot is by the ...
(Date:10/2/2017)... PHILADELPHIA , Oct. 2, 2017 Halo Labs announces ... particle analysis system called the HORIZON at MIBio 2017 in ... analyzes subvisible and visible particulate matter in biopharmaceutical samples with unprecedented ... use of the novel technique Backgrounded Membrane Imaging. ... The HORIZON subvisible particle analysis system ...
(Date:9/27/2017)... NEW YORK , Sept. 27, 2017  DarioHealth Corp. (NASDAQ: DRIO), ... solutions, today announced that its MyDario product is expected to appear on ... for when The Dr. Oz Show airs in your area: http://www.doctoroz.com/page/where-watch-dr-oz-show ... The nine-time Emmy award-winning, The Dr. ... ...
Breaking Medicine Technology: