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Skiing - One of those days. Have you ever seen a yo-yo performance this good. Debunking the 3 Biggest Exercise Myths. Loss of More than 2 Percent of Your Body Weight During Exercise Degrades Performance This debate, popular among exercise gurus and professional trainers, centers on how much water weight an athlete can lose without sacrificing performance.

Debunking the 3 Biggest Exercise Myths

Lab tests have suggested that a body-weight loss of more than 2 percent impairs athletic performance. This information has become accepted. But a study of marathon runners in France published late last year found exactly the opposite. The fastest finishers were the most dehydrated, having lost 3.1 percent of their body weight, while the slowest finishers lost only 1.8 percent. Bruce Lee and Chuck Norris. Huge Roof Gap Jump. Parkour and FreeRunning. Assassin's Creed Meets Parkour in Real Life.

Damien Walters 2010. Running Analysis of Heel Strike versus Forefoot Strike (Same runner, 2 weeks apart. Steps to Better Foot Health. 'Build up slowly' for barefoot runs. 12 September 2013Last updated at 17:32 GMT By Suzi Gage Reporter, BBC News, Newcastle Bare foot running - good or bad?

'Build up slowly' for barefoot runs

Careful readjustment is vital for anyone taking up barefoot running, sports scientists have warned. An overview of research was presented at the British Science Festival in Newcastle. Claims that running without footwear might improve technique and result in fewer injuries have led to many runners taking it up. Dr Mick Wilkinson, from Northumbria University, also claimed that it was best to start off on hard surfaces. He told a press conference that when he made the transition to barefoot running, he started on soft surfaces and gradually moved to harder ones such as concrete, but that if he could do it again, he would start off on hard concrete. Dr Wilkinson was one of the first people to run the Great North Run completely barefoot, which he did in 2011. Contact sport Continue reading the main story. Barefoot running injury concern. 16 May 2013Last updated at 02:20 ET By Helen Briggs BBC News Bare foot running - good or bad?

Barefoot running injury concern

The trend for barefoot running could lead to injuries in some runners, a small study suggests. The way you run is more important than whether you wear running shoes or not, say scientists in Taiwan. The rationale behind barefoot running is to move in a more natural way, with the front of the foot hitting the ground first. Run a Mile Race, Instead of a Marathon. Myths of Running: Forefoot, Barefoot and Otherwise. Incredible run at the 4 x 400 m relay. Sprinter vs. Marathoner. Secret of Usain Bolt's speed unveiled. 26 July 2013Last updated at 09:52 ET By Melissa Hogenboom Science reporter, BBC News Bolt's 2012 Olympic record of 9.63 seconds in the 100m final was not his fastest 100m sprint Scientists say they can explain Usain Bolt's extraordinary speed with a mathematical model.

Secret of Usain Bolt's speed unveiled

His 100m time of 9.58 seconds during the 2009 World Championships in Berlin is the current world record. They say their model explains the power and energy he had to expend to overcome drag caused by air resistance, made stronger by his frame of 6ft 5in. Writing in the European Journal of Physics, the team hope to discover what makes extraordinary athletes so fast.

According to the mathematical model proposed, Bolt's time of 9.58 seconds in Berlin was achieved by reaching a speed of 12.2 metres per second, equivalent to about 27mph. Long-distance running and evolution: Why humans can outrun horses but can’t jump higher than cats. By Chris McGrath/Getty Images.

Long-distance running and evolution: Why humans can outrun horses but can’t jump higher than cats

At first glance the annual Man vs. Horse Marathon, set for June 9 in Wales, seems like a joke sport brought to us by the same brilliant minds behind dwarf tossing and gravy wrestling. It was, after all, the product of a pints-fueled debate in a Welsh pub, and for years its official starter was rock musician Screaming Lord Sutch, founder of the Official Monster Raving Loony Party. But the jokiness is misleading: When viewed through science’s clarifying lens, the funny marathon is one of the few sports that isn’t a joke. Barefoot running vs running shoes. The rise of barefoot running. Kitty Corliss "Grinding the Crack" Flying an F-16 for the first time. Skydiving into the Blue Hole, Belize. Wingsuit Scotty-Bob - The Beehive Line. Unbelievable Wingsuit Cave Flight! Batman Cave, Alexander Polli.

Skydiving. Daredevil dies in rope swing stunt popularized by YouTube. SALT LAKE CITY (AP) — A 22-year-old Utah man was killed trying to swing through the opening of a 110-foot-tall sandstone arch in a stunt made so popular on YouTube that state authorities recently banned the daredevil activity by commercial outfitters.

Daredevil dies in rope swing stunt popularized by YouTube

Kyle Lee Stocking, of West Jordan, left too much slack in the rope he was using, and it sent him crashing into the sandstone base of Corona Arch near Moab, Grand County sheriff's officials said. He died Sunday afternoon. World's Most Insane Rope Swing Ever!!! - Canyon Cliff Jump. Urban wingsuit flying into Rio de Janeiro - Ludovic Woerth & Jokke Sommer (Full HD) Jeb Corliss " Grinding The Crack". Guillaume Nery base jumping at Dean's Blue Hole, filmed on breath hold by Julie Gautier.

Mitchie Brusco- 1080. Guys jumping into huge waves. Water skiing. Flyboard - Coolest Water Jet Pack EVER!!! GoPro: Backflip Over 72ft Canyon - Kelly McGarry Red Bull Rampage 2013. Biking. Trampoline wall action with Oli Lemieux. Quadruple Kick Bad Ass. Tracy McGrady 13 Points Vs The Spurs In 33 Seconds HD. Manute and Spud. Craziest Buzzer Beater!? New Rochelle vs Mount Vernon. Table Tennis -Spectacular!! Project Snooker: Real Game Detection - Testing. How To SQUAT. DC SHOES: Ken Block's Gymkhana THREE, Part 2; Ultimate Playground; l'Autodrome, France.

Bugatti Veyron vs Lamborghini Aventador vs Lexus LFA vs McLaren MP4-12C - Head 2 Head Episode 8. Ferrari F12 vs Lamborghini Aventador vs Aston Martin Vanquish - evo review. Motorcycles tangled during race. How To Drift, BMW M235i - /Chris Harris On Cars. Drifting. Patrese & Wife - circuit lap. Lamborghini Veneno $4.5 million supercar. Introducing the most powerful Lamborghini ever: the Veneno LP740-4 (pics from all sides) We have known for quite some time now that Lamborghini was planning to introduce a production model that would be the most powerful supercar that they have ever sold to help celebrate the company’s 50th birthday but thanks to information leaked on the internet last night, we know that this historic car is the Lamborghini Veneno LP740-4.

Introducing the most powerful Lamborghini ever: the Veneno LP740-4 (pics from all sides)

Details are limited on the Veneno but thanks to the bit of information included in the early leaked magazine image – we know the details that matter most to both buyers and dreamers. Dead bodies on Mount Everest. BBC Science - Everest: how science conquered the world's highest mountain. 28 May 2013Last updated at 01:57 By Christopher Brooks BBC Scotland Mount Everest was once the domain of elite mountaineers.

BBC Science - Everest: how science conquered the world's highest mountain

In the week of the 60th anniversary of the first ascent, the world's highest peak was climbed by 80 year old Yuichiro Miura of Japan. The peak has also been climbed by a 13 year old and a blind athlete. Technical advancements, increased safety and decreased cost have seen growing numbers attempt to scale the world's highest mountain. Everest climbing rules 'to be tightened' 2 August 2013Last updated at 02:15 ET By Navin Singh Khadka Environment reporter, BBC News Expeditions on Mount Everest will be more closely monitored than before from next year, the BBC has learned.

Everest climbing rules 'to be tightened'

Nepalese officials say that for the first time, a government team will be located at the base camp. They will monitor and help expedition teams, coordinate rescues and protect the environment. The move follows embarrassing incidents on the slopes of the world's tallest peak, including a fight between sherpas and mountaineers. Everest crowds: The world's highest traffic jam. 28 May 2013 Last updated at 05:35 ET By Jon Kelly BBC News Magazine A "traffic jam" of climbers en route to the summit Six decades after it was conquered, mountaineers complain that the summit of Mount Everest has become virtually gridlocked with climbers.

Everest Maxed Out. An hour above high camp on the Southeast Ridge of Everest, Panuru Sherpa and I passed the first body.

Everest Maxed Out

The dead climber was on his side, as if napping in the snow, his head half covered by the hood of his parka, goose down blowing from holes torn in his insulated pants. Ten minutes later we stepped around another body, her torso shrouded in a Canadian flag, an abandoned oxygen bottle holding down the flapping fabric. Trudging nose to butt up the ropes that had been fixed to the steep slope, Panuru and I were wedged between strangers above us and below us.

Man Lands on Water Without Parachute (WORLD'S FIRST) The Art Of Flight. Ice Climbing Fall caught by helmet cam. Let's Get Physical: The Psychology of Effective Workout Music. “I dare them to find the iPod on me,” Richie Sais told the New York Times in 2007, when he was preparing to run the Marine Corps Marathon. USA Track & Field, the national governing body for distance racing, had just decided to ban athletes from using portable music players in order "to ensure safety and to prevent runners from having a competitive edge. " Rais resolved to hide his iPod shuffle under his shirt. Many fellow runners protested the new rule, which remains in effect today in an amended form: It now applies only to people vying for awards and money. For some athletes and for many people who run, jog, cycle, lift weights and otherwise exercise, music is not superfluous—it is essential to peak performance and a satisfying workout.

Although some people prefer audio books, podcasts or ambient sounds, many others depend on bumpin' beats and stirring lyrics to keep themselves motivated when exercising. Music also increases endurance by keeping people awash in strong emotions. The Mechanics of the Pull-Up (and Why Women Can Absolutely Do Them) As a former rock climbing instructor, I have seen many contorted struggles to raise a chin over a bar. The pull-up for many is a sort of “test piece” of fitness—an indicator of athletic prowess—that is a cornerstone of a good workout (or a good showing-off). Most either never try a pull-up after they leave high school gym class, or fail, but many succeed, especially women.

Living Well Medical: Lacrosse Ball use for Upper Back and Neck Pain. Babies swimming. Kayakers at Victoria Falls. BEST High bar routine ever - Epke Zonderland. Gymnastics Artistic Men's Floor Exercise Final Full Replay. Someone should tell this girl that this can't be done. The Hardest Skills in Men's Gymnastics. Crazy Catch by Ball Girl. Roberto Carlos The Impossible Goal. GERMANY IN THE WORLD CUP - REAL VERSION. Who, what, why: Could Tourette's syndrome make a goalkeeper better? 2 July 2014Last updated at 08:38 ET Who, What, Why The Magazine answers the questions behind the news Tim Howard's World Cup goalkeeping has been universally acclaimed.

Might his Tourette's syndrome explain some element of his superb reactions? It was a remarkable display - 15 saves in a single World Cup match. Although it wasn't enough to prevent his team losing to Belgium, USA keeper Tim Howard's fine performance has been one of the highlights of the tournament. Carlos '97 free kick no fluke, say French physicists. Roberto Carlos' free kick goal against France in 1997's Tournoi de France is thought by many to have been the most skilful free kick goal -- from 35m with a powerful curling banana trajectory -- ever scored; but by others to have been an incredible fluke.

Taken in 1997, a year before the French won the World Cup, Brazilian Carlos's goal held France to a frustrating draw but, now, a group of French physicists -- perhaps with a nostalgic eye to a happier time for French football -- have computed the trajectory and shown that Carlos' goal was no fluke. The research published Sept. 2, 2010 in New Journal of Physics, explains why French goalkeeper Fabien Barthez made no move for the ball (but why a ball-boy ten metres from the goal did duck to safety) as the ball made a last moment sweep left and landed in the back of the net. _48950562_impossible_goal_464. Roberto Carlos Best Goal - Free Kick Goal vs France (Tournoi de France 1997) Zinedine Zidane - The Maestro Of The Decade HD. Rugby player scores a try while unconscious.

Josh Turnbull - Sign Him Up! Watford scores in last seconds after Leics missed penalty shot. De'Anthony Thomas (The Black Mamba) 1080p HD. Most Badass 10-Year-Old Quarterback In America Takes On Entire Team. Insane Football skills - World Freestyle champion Andrew Henderson. AHL referee wears helmet cam. Pro armwrestler vs Pro bodybuilder. Rays hidden ball trick vs Dodgers 8/10/13. Overtaking with style. Formula 1 racecar evolution. Well Workouts. Michael Jordan. Scottie Pippen: The Ewing Dunk. Not even a blink. Body Workout Quick Guide. The Most Comprehensive Handstand Tutorial. Lars Andersen: a new level of archery. Bedtime 'has huge impact on sport'

Sportsmanship at its finest by Dortmund.