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The Biomechanics Of Usain Bolt

The Biomechanics Of Usain Bolt

How does Usain Bolt run so fast? Usain Bolt showed his dominance of men's sprinting at the athletics World Championship in Beijing this week with wins in the 100m and 200m. What's his secret? Is the way to win at sprinting to move your legs faster than your rivals do? Since the Beijing Olympics in 2008 Bolt has won every race he's entered at a World Championship or the Olympics, with the exception of one, where he was disqualified for making a false start. When non-athletes want to run fast they set about moving their legs as fast as they can, so you might assume that Bolt has achieved this exceptional record by making his legs move faster than everyone else has. "Elite sprinters don't swing their legs any faster than recreational runners," says Dr Sam Allen of Loughborough University. Instead, the difference is that a top sprinter takes longer and more powerful strides. Research shows that an amateur runner often takes between 50 and 55 steps to complete 100m, while an elite sprinter takes in the region of 45.

The Physics of Olympic Bodies Yes, it is that time of the season that the olympics are ending. Being one of the most fascinating events to observe around the world, the Olympics is able to capture the imaginations of countries around the world. Though sometimes due to, in no small part, how freaking buff these people are. Every historical trend in world record performances has been positive, meaning that we (a very subjective word) as Olympians have only been getting harder/better/faster/stronger every year! It boggles the mind to think that every year someone one-ups the past by just enough to progress the world record. What I find even more fascinating though, is how each event in the Olympic event defines the physique of the athlete in question. ps sorry for the double-day-Olympics-Whammy Share This Infographic Get Free Infographics Delivered to your Inbox

Supplements Vitamin and mineral supplementation continues to be a contentious issue amongst health professionals. The common catch-cry of the medical community is that vitamins and minerals are adequately available from our food. It’s hard to appreciate the credibility of this advice, when it is delivered from a profession that receives negligible nutrition training. In Australia, this claim contrasts in stark hypocrisy against laws prescribing the mandatory fortification of bread with thiamine and salt with iodine. In addition, folic acid supplementation in pregnant women is a recommended requirement to protect an unborn child from developing spina bifida. But we’re meant to be getting that from our foods, right? The inconvenient reality is that food ‘ain’t what it used to be. Whilst sustainable agricultural practices such as biodynamic farming aim to restore our soils to health, we have considerable work to do before this option is universally adopted and available to everyone. Vitamin C

Respiratory System by Ben Leonard on Prezi Muscular System: Facts, Functions & Diseases While most people associate muscles with strength, they do more than assist in lifting heavy objects. The 650 muscles in the body not only support movement — controlling walking, talking, sitting, standing, eating and other daily functions that people consciously perform — but also help to maintain posture and circulate blood and other substances throughout the body, among other functions. Muscles are often associated with activities of the legs, arms and other appendages, but muscles also produce more subtle movements, such as facial expressions, eye movements and respiration, according to the National Institutes of Health (NIH). [Image Gallery: The BioDigital Human] Prehistoric Van Goghs: Artists Used Pointillism 38,000 Years Ago Nineteenth-century artists, such as Georges Seurat and Vincent van Gogh, weren't the first to use pointillism, according to a discovery of 38,000-year-old decorated limestone tablets in France. Muscles also can be identified by their function.

ARC :: Assessment Resource Centre Skill Acquisition in Sport – The Journey to Expertise Skill Acquisition in Sport This article attempts to provide simplistic insight into the concept of Skill Acquisition in sport, and specifically what actions coaches and teachers need to be conscious of to help ensure their athletes are presented with the best possible chance of achieving excellence. In an effort to effectively develop talent and impart learning, coaches need to be aware of the proposition offered by Sports scientists that denotes the journey any young performer passes through on their route to expertise, consists of three distinct stages. Simplistically, these are referred to as the Cognitive Stage, Associative Stage and Autonomous Stage of Skill Acquisition. Skill Acquisition is the science that underpins movement learning and execution and is more commonly termed motor learning and control (Williams & Ford, 2009). Cognitive Stage The duration for which a performer stays embedded within the Cognitive Stage is dependent upon a multitude of factors. Associative Stage

ACHPER NSW - Professional association for health, physical education and recreation professionals Lance Armstrong holds lengthy talks with doping investigators 18 July 2014 Last updated at 07:33 GMT Disgraced former cyclist Lance Armstrong has talked with investigators about doping in the sport's past, said his lawyer Elliot Peters. The American, 42, met the Cycling Independent Reform Commission for seven hours in Washington DC in May. "It was a very good meeting," claimed Peters. Armstrong was stripped of his seven Tour de France titles from 1999 to 2005 and handed a lifetime ban over his use of performance-enhancing drugs in 2012. Peters added: "If you made a list of all the questions people would want to ask about Lance and his activities in cycling and everything else, those were the questions that were asked and answered." The Commission's investigation has been expected to centre on the International Cycling Union's handling of doping in the late 1990s and early 2000s, especially its links with Armstrong. The Commission has the authority to cut deals with cheaters who provide valuable information.

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