http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. (Medical Xpress)—Athletes no longer ask whether beetroot juice improves sporting performance - they just want to know how much to drink, and when. http://medicalxpress.com/news/2013-05-beet.html Health Thu, 16 May 2013 08:40:01 EST news287911631 Trudging from place to place with heavy weights on our backs is an everyday reality, from schoolchildren toting textbooks in backpacks to firefighters and soldiers carrying occupational gear. Muscle and skeletal damage are very real concerns. Now Tel Aviv University researchers say that nerve damage, specifically to the nerves that travel through the neck and shoulders to animate our hands and fingers, is also a serious risk. http://medicalxpress.com/news/2013-02-heavy-burden.html Health Thu, 21 Feb 2013 12:47:55 EST news280673268 A study published in the Journal of Applied Physiology, Nutrition, and Metabolism presented compelling data showing the consumption of both high fructose corn syrup (HFCS) and sucrose (table sugar) at levels consistent with average daily consumption do not increase liver fat in humans, a leading cause of non-alcoholic fatty liver disease (NAFLD). The findings also add to an already well-established body of science that high fructose corn syrup and table sugar are metabolically equivalent. http://medicalxpress.com/news/2013-02-hfcs-table-sugar-liver-fat.html Diabetes Tue, 12 Feb 2013 12:40:01 EST news279894487 A new study led by North Carolina researchers has found that when it comes to weight- and fat loss, aerobic training is better than resistance training. The study is believed to the largest randomized trial to directly compare changes in body composition induced by comparable amounts of time spent doing aerobic and resistant training, or both in combination, among previously inactive overweight or obese non-diabetic adults. http://medicalxpress.com/news/2013-01-short-aerobic-resistance-weight-fat.html Health Wed, 02 Jan 2013 16:51:36 EST news276367890 Aerobic training is the best mode of exercise for burning fat, according to Duke researchers who compared aerobic training, resistance training, and a combination of the two. http://medicalxpress.com/news/2012-12-aerobic-trumps-resistance-weight-fat.html Health Sat, 15 Dec 2012 00:20:01 EST news274696051 As men and women age, increasing quantities of fat tissue inevitably take up residence in skeletal muscle. A small study of older and younger men conducted at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University suggests that a build-up of a fat molecule known as ceramide might play a leading role in muscle deterioration in older adults. The results of the study were published online this month by the Journal of Applied Physiology, a publication of the American Physiological Society. http://medicalxpress.com/news/2012-10-fat-molecule-ceramide-factor-muscle.html Medical research Wed, 31 Oct 2012 16:20:00 EST news270919182 A new study conducted by researchers at the University of Cordoba links moderate physical activity in males with better hormone levels and sperm characteristics that favour reproduction compared to sedentary men. http://medicalxpress.com/news/2012-10-men-quality-semen.html Medical research Wed, 31 Oct 2012 16:06:43 EST news270918268 New research from scientists at McMaster University reveals exercise-related testosterone and growth hormone do not play an influential role in building muscle after weightlifting, despite conventional wisdom suggesting otherwise. http://medicalxpress.com/news/2012-06-debunks-bodybuilding-myth-growth-promoting-hormones.html Medical research Thu, 14 Jun 2012 10:59:02 EST news258890328 Late gestation is a busy time for babies getting ready for life outside the womb, particularly for functions critical to life such as breathing and maintaining an adequate heartbeat. These two functions are connected in mature infants and healthy people throughout life, so measuring their level of connectedness can give doctors a cue about whether an infant is ready to head home or needs to remain in the care of the neonatal intensive care unit (NICU). Current methods to analyze this connection are not yet fully developed, leaving doctors and nurses without an optimal way to deal with periodically missing data or natural variations in breathing or heartbeat. Now, however, researchers in Virginia have found a way around this problem by using a new analytical method that looks for so-called cardiorespiratory interaction using individual breaths and heartbeats and relating the two in time. The findings shed light on which infants may be mature enough to leave the NICU, showing that postnatal age seems to be an indicator of maturity, but birth weight or gestational age at birth are not. http://medicalxpress.com/news/2012-03-analysis-premature-infants-heartbeats-cues.html Health Mon, 26 Mar 2012 16:25:03 EST news251997884 People with heart disease may not be able to compensate for their bodies' higher demand for oxygen when inhaling cold air, according to Penn State researchers, making snow shoveling and other activities dangerous for some. http://medicalxpress.com/news/2012-02-cold-air-chills-heart-oxygen.html Cardiology Tue, 28 Feb 2012 12:10:01 EST news249652104 Researchers at McMaster University have found that brief high intensity workouts, as little as six sessions over two weeks, rapidly lower blood sugar levels in type 2 diabetics, offering a potential fix for patients who struggle to meet exercise guidelines. http://medicalxpress.com/news/2011-12-high-intensity-workouts-diabetics-blood-sugar.html Health Mon, 12 Dec 2011 11:19:28 EST news242911159 Doctors should not only treat the heart muscle in chronic heart failure patients, but also their leg muscles through exercise, say researchers in a study published today in the Journal of Applied Physiology. http://medicalxpress.com/news/2011-10-leg-fatigue-heart-failure.html Cardiology Mon, 31 Oct 2011 10:48:45 EST news239276914 Coaches, physiologists and athletes alike will attest to the importance of warming up before athletic competition. Warming up increases muscle temperature, accelerates oxygen uptake kinetics and increases anaerobic metabolism, all of which enhance performance. However, the question of how long and strenuous a warm-up should be is more contentious, with some in the sports community advocating longer warm-ups and others espousing shorter ones. Now researchers at the University of Calgary Human Performance Laboratory in Calgary, Alberta, Canada have found evidence indicating that less is more. http://medicalxpress.com/news/2011-06-when-warming-up-for-the.html Health Thu, 16 Jun 2011 11:14:28 EST news227441659 New study in the Journal of Applied Physiology suggests that low intensity warm-ups enhance athletic performance. http://medicalxpress.com/news/2011-05-warm-up.html Other Fri, 27 May 2011 11:15:56 EST news225713738