For a week Ms Gravina evaluated players from the first two Athletic teams (Superleague and National League), in order to observe their eating habits and where they could improve. The evaluation lasted a week and the studies were carried out on the days prior to the match, on the same day of the game and after the match. Using this data she wrote her PhD thesis: Estudio nutricional en mujeres futbolistas de √ lite y su relaci√ n con los cambios hematol√ gicos, de estr√ s oxidativo y da√ o muscular tras jugar un partido de f√ tbol (Nutritional study of top-class women footballers and the relation with changes in haematology, oxidative stress and muscular damage after playing a football match).
An international team of researchers suggests that running barefoot may be better for the feet and joints of the lower limbs because they found people who run barefoot or in minimal shoes strike their foot on the ground in such a way that they have almost no impact collision due to "heel-strike", unlike people who run in modern running shoes where the impact of the more prevalent heel-strike can be the equivalent of landing with two to three times of one's body weight. Dr Daniel E. Lieberman, a professor in Harvard University's new department of human evolutionary biology in Cambridge, Massachusetts, US, and colleagues, have written a paper about their findings the 28 January online issue of Nature.
Whiplash, or WAD (whiplash-associated disorders) refers to a series of neck injuries caused by or related to a sudden distortion of the neck - hyperextension (over-extension) injury to the neck. In many cases whiplash is the result of being struck from behind, for example, by a fast moving vehicle in an automobile accident. In a typical case the victim's body is initially pushed or accelerated forward while the head remains behind for an instant, making the head rock up and back, stretching and/or tearing some muscles, tendons and ligaments. The muscles react automatically (reflex motion) to bring the heard forward - sometimes this is overdone and the head may rock forward violently, further stretching and/or tearing muscles, tendons and ligaments.
Listening to an iPod while working out feels like second nature to many people, but University of Alberta researcher Bill Hodgetts says we need to consider the volume levels in our earphones while working up a sweat. Hodgetts, assistant professor in the Department of Speech Pathology and Audiology at the Faculty of Rehabilitation Medicine, says his research has found that exercising in a gym often prompts people to turn up the volume to potentially unsafe levels for the ear. The researcher found that the study participants, who were in a gym-like setting, listened at potentially dangerous levels while working out, likely due to the presence of background noise.
Jamaican sprinter Usain Bolt's record-setting performances have unleashed a wave of interest in the ultimate limits to human running speed. A new study published in the Journal of Applied Physiology offers intriguing insights into the biology and perhaps even the future of human running speed. The newly published evidence identifies the critical variable imposing the biological limit to running speed, and offers an enticing view of how the biological limits might be pushed back beyond the nearly 28 miles per hour speeds achieved by Bolt to speeds of perhaps 35 or even 40 miles per hour. The new paper, "The biological limits to running speed are imposed from the ground up, " was authored by Peter Weyand of Southern Methodist University;
Youth soccer is one of the most popular team sports in the world and is an effective form of exercise for many children. With the growing popularity of soccer (known as football outside the U.S.), comes a greater number of injuries, as detailed in a new clinical report from the American Academy of Pediatrics (AAP), "Injuries in Youth Soccer, " published in the February issue of Pediatrics (appearing online Jan. 25). Injury rates are highest among younger, preadolescent players. Young females tend to suffer more knee-related injuries, compared to male soccer players who tend to have more ankle injuries. Knee injury prevention programs can reduce the number of knee injuries and should be promoted in the soccer community.