The supplement, which will be commercially available within the year, works by temporarily switching the primary source of cellular energy from glucose or fat to ketones — molecules derived from fat that are known to be elevated in people consuming a low-carb, Atkins-like diet.

In a study of 39 cyclists, including some former Olympians, they found that the muscles use ketones when provided in the diet, and that this uptake increased in proportion to the intensity of exercise.

In one experiment, the researchers gave the cyclists ‘energy drinks,’ each containing a different source of fuel — carbohydrates, fats, or ketones — and found that cyclists who had the ketone drink had the lowest levels of lactate, a byproduct of the body’s breakdown of glucose, which is often associated with muscular stress, or the achy, tired feeling felt after a strenuous workout. The observation could help explain why the high-performing cyclists on the ketone drink travelled an average of 400 metres farther over a half hour than those consuming the carbohydrate or fat drink.

 “It’s really interesting; with a single drink of nutritional ketone you can do the same exercise with completely different metabolism,” says study author Dr. Pete Cox from the University of Oxford. “Given the findings of this study, which challenges our fundamental understanding of human physiology, it will be tempting for many to focus on pursuing the endurance and sport-related avenues, but it would be a great shame if the metabolic basis of this work was not further explored.”

Ketosis is a way for humans to deal with starvation. Ketones are made in the liver from mobilised body fat, so when the body doesn’t get enough fuel from food, internal fat stores are broken down to make ketones that feed the brain. Normal metabolism is driven by the burning of carbs and fat obtained in a balanced diet.

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“The ketone itself is inhibiting glycolysis, so that with the same exercise you’re preserving glycogen and producing much less lactic acid — this hasn’t been seen before,” University of Oxford biochemist Professor Kieran Clarke says. “What may be happening is if you are doing something that isn’t a sprint, like going on a 26-mile run, you won’t hit the wall as quickly. Not only that, but it stops you from aching afterwards.”

While a good fit for endurance athletes, the ketone drink is unlikely to help sprinters and those whose exercise is primarily anaerobic, as the body needs oxygen to burn ketones. A University of Oxford spinout company, T?S® Ltd, will now develop and commercialise the ketone drink and  aim to have the ketone food available for purchase by the end of the year.

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“The multisport world continues to grow at an incredible rate,” said ITU President and IOC Member Marisol Casado. “Offering multisport races like Aquabike promotes the growth of triathlon worldwide, as it makes the sport accessible to everyone of all ages and abilities no matter where they are.” 

“We are thrilled to be adding Aquabike World Championships to the docket at ITU Multisport World Championships in Penticton next August. The addition of aquabike means the Multisport World Championships is truly complete, with five world championship events,” said race executive director Michael Brown.

Aquabike joins duathlon, aquathlon, cross triathlon, and long distance triathlon at the champs. The race will see athletes swim 3km followed by 120 km bike, mirroring the length of the Long Distance Triathlon. The finish line will be right after the second transition, with athletes racking their bikes at a second transition, and then sprinting to cross the finish line. 

The 10-day Multisport World Championships is expected to see more than 7,000 age groupers race in the heart of the city, with the epicentre being along the beachfront of Okanagan Lake and Okanagan Lake Park. The spectator friendly courses will feature a variety of terrain and include some of the area’s many vistas, wineries and landmarks, as well as the downtown area.

All participants and visitors will enjoy a full week of triathlon action, as well as concerts, street dance, race expo, parade of nations, kids races and awards presentations.

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For more information on ITU Multisport World Championship Festival here, #Penticton2017

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“Congratulations to all of the athletes that have worked so hard for so long to make it to the Olympics,” said ITU President and IOC Member Marisol Casado. “The men’s and women’s start list reflect deep fields riddled with talent from all over the world. Come August 18 and 20, the word will be inspired and entertained by these 110 men and women.”

A record number of 42 nations have qualified spots for the triathlon at Rio , the highest number ever for triathlon at an Olympic Games. In London 2012, there were 39 nations, with 37 represented in Beijing 2008, 33 in Athens and 34 in Sydney.

These include six that have qualified a spot for the first time in the history of Olympic triathlon including Azerbaijan, Barbados, Israel, Jordan, Norway and Puerto Rico.
Seven nations will see the maximum allowance of three women compete are Australia, Canada, Great Britain, Japan, Spain, Russia, and the United States.

In the men’s race, eight nations have qualified the maximum of three men including Australia, France, Great Britain, Mexico, Portugal, Russia, Spain and the United States.

Start numbers are drawn at random and assigned in groupings to National Olympic Committees, determining where athletes rack their bikes in transition. However, athletes will select their start position based in order of their Olympic rankings at the athlete briefing in Rio. The first ten athletes’ selections will not be revealed until all 55 athletes have chosen their spot.

The GB men’s team (Brownlees and Gordon Benson) are numbered 4,5 & 6 while the women’s team (Helen Jenkins, Vicky Holland and Non Stanford) are numbered 14, 15 & 16.

Start numbers 30-39 hold good omens as to who might podium at Rio. So far five gold medals have come from start numbers between 30 and 39. These included Emma Snowsill (34), Brigitte McMahon (35), Kate Allen (39), Jan Frodeno (32) and Alistair Brownlee (30).

However the number with the most success is 34. It was worn by Emma Snowsill (Gold in Beijing), Magali di Marco Messmer (Bronze in Sydney), and Susan Williams (Bronze in Athens). Start number 27 has also been a successful number, with Bevan Docherty claiming both his medals, silver in Athens and bronze in Beijing, in that start number.

Women’s start list
Men’s start list

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Lee will be joined by current British Champions Sophie Coldwell and Morgan Davies who together won silver at the U23 European championships in the mixed relay team.

Over the course of the season, the team will compete for Team Pedalcover across the world.

As part of Team Pedalcover, triathletes will get kit, clothing and branded merchandise, in addition to insurance cover.

Pedalcover also sponsors GB triathletes Vicky Holland and Tom Bishop, partners with Welsh Triathlon, and have launched an affiliate scheme to donate money to grassroots development.

Pedalcover’s founder Darren Thomas said: “As a former semi-professional cyclist and Ironman I know how hard it is at the start of your career. Through Pedalcover, I wanted to be in a position to support the next generation of GB triathletes.

“Through Team Pedalcover we aim to nurture the talent we have in triathlon in the UK and give something back to the sport we love.

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“We’ve got an exceptional bunch of elite athletes who are great ambassadors for us and we’re looking forward to following their success over the course of the season.”

Martin Jolly, Chief Executive Officer of Sports Media and Entertainment 360, owners and operators of the event, said: “We are super excited to announce that Challenge Melbourne has moved venues in 2017 and will be held at the iconic Catani Gardens in St Kilda. We are also extremely excited for this event to have been chosen to host the 2017 Asia Pacific Championship. 

“This picturesque beach side venue in Melbourne Australia is the perfect location to stage an event of this caliber as it has an abundance of accommodation, cafes, tourist activities and nightlife that promises a great weekend or holiday in this famous city.”

It is expected more than 1,500 triathletes  will complete a 1.9km swim, 90km bike and 21.1km run, and the pros will fight it out for a $30,000 prize purse and the title of Asia-Pacific Champion. The event will also carry double qualification slots for the Challenge  Family’s  World Championship event at the half distance.

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While Challenge Melbourne is the Asia-Pacific Championship for 2017, triathletes of all levels are welcome to register for the event, and pre-sale registrations are available now at www.challengemelbourne.com.au. 

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2) 6,453,682: population of Rio

3) 2: The highest number of Olympic tri medals won, held by Simon Whitfield and Bevan Docherty

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4) 5th: The highest Olympic finish to date for a GB female (Helen Jenkins at London 2012 ) Will this change…?

5) 4: Number of paratri categories at Rio. PT1, PT2 and PT4 for men, PT2, PT4 and PT5 for the women.

6) Dec 11th: Date paratriathlon was officially added to the Rio Paralympic Games

7) 65%: Brit medal favourite Alison Patrick’s ITU win percentage in the PT5 category

8) 1 marriage between two Olympic gold medallists – 2008 champs Jan Frodeno and Emma Snowsill

9) 9th: Brit Simon Lessing’s position at the 2000 Games, after being favourite for gold

10) 29:07Alistair Brownlee’s winning run split at the 2012 Olympic Games

11) 15cm: After 51.5km of racing, the winning margin of Nicola Spirig over Lisa Norden at London 2012

12) 1502 Date the Rio area was first encountered by Europeans

13) 38m: Height in metres of the Christ the Redeemer statue

14) $9.7 billion: Budget of the 2016 Olympic Games

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15) 4km: Length of Copacabana beach

Simply by visiting www.gotri.org/yourgotri, people can create their own triathlon, selecting a swim, cycle and run from options including a “trip to the pool”, “pedal in the park”, and “jog round the block”. Participants can also select to “row in the gym” instead of swim, if they’d rather not get wet, or don’t have a local pool.

Once participants have created their own triathlon, they’ll be supported with top tips from the experts at British Triathlon. You can also check out our beginner section on our website for lots of tips and advice.

Participants have the opportunity to Tri Something New and the chance to win triathlon starter packs provided by British Triathlon sponsors and suppliers.

Since London 2012, triathlon has enjoyed significant growth. The number of triathlon events increased by 63% from 2012 to 2016, with on average 24 events per week across Great Britain. Growth has also been seen across all demographics with 88% growth in Home Nation membership amongst women, and 169% growth amongst young people aged 16-18.

Jack Buckner, CEO of British Triathlon, says: “The aim of this campaign is to inspire new triathletes and break down any perceived barriers about the sport being too challenging, intimidating or expensive. Anyone who completes a swim, a bike and a run is a triathlete, and the goal is to encourage people to enter a triathlon event in 2017, giving themselves an achievable goal to work towards. Setting a goal is a great way of increasing commitment to regular activity.”

Get someone you know involved and tweet using #YourGOTRI.

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For more inspiration read pro Caroline Livesey’s piece on why she thinks everyone should have a go at triathlon 

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However, for triathletes the news isn’t all doom and gloom. The study, run by Duke Health, indicates that efforts to maintain physical abilities should start before the age of 50. This means that the hours spent training for triathlons in mid-life can go a long way in preserving the skills to keep mobile in later decades.

The research also found that a simple test can determine early weaknesses  that can then be addressed before they naturally begin to decline.  This will increase the chances of maintaining functions (and racing!) for longer.

“Our research reinforces a life-span approach to maintaining physical ability – don’t wait until you are 80 years old and cannot get out of a chair,” said lead author Katherine S. Hall, Ph.D., assistant professor of medicine at Duke. “People often misinterpret ‘aging’ to mean ‘aged’, and that issues of functional independence aren’t important until later in life. This bias can exist among researchers and healthcare providers, too. The good news is, with proper attention and effort, the ability to function independently can often be preserved with regular exercise.”

 The team studied a group of 775 adults, enrolled in the MURDOCK Study -Duke Health’s longitudinal clinical research study. Participants’ ages ranged from their 30s through to their 100s, with broad representation across sexes and races.

 Participants were asked to perform a set of simple tasks, which were used to demonstrate strength, endurance and balance. 

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On average, men performed better than women on the tasks, and younger participants outperformed their older counterparts. Yet declines in physical ability were consistently shown to appear in the decade of the 50s, irrespective of gender or other demographic factors. Different abilities seemed to decline over slightly different time frames. Primarily, both sexes showed the start of the decline in their 50s, and this continued through the next decades. Changes in aerobic endurance and gait speed appeared more with participants in their 60s and 70s. 

The study also provided simple yet effective clinical benchmarks to measure physical ability, meaning any problems can be detected earlier.  

“Typically, functional tests are conducted on people in their 70s and 80s, and by then you’ve missed 40 years of opportunities to remedy problems,” said Miriam C. Morey, Ph.D., senior fellow in the Center for the Study of Aging and Human Development at Duke University School of Medicine.

 This news challenges previous assumptions, not only on when we should start thinking about physical abilities, but how we view their decline. While triathletes and other sportspeople are generally active, simple tasks can help highlight any areas of weakness that ideally should be addressed before they naturally begin to decline. 

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Ironman Boulder officials released the following statement:

“We are deeply saddened to confirm the death of one of our athletes at Ironman Boulder. We are working with the Colorado State Patrol to gather all of the details regarding the incident that occurred on (U.S.) 36 just north of Broadway. Our condolences go out to the athlete’s family and friends, whom we will continue to support.”

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The incident is under investigation but State Patrol officials said alcohol and speed are not believed to be contributing factors.

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