Why are the Kenyans so fast?

Analysis of the Kenyan distance-running phenomenon General is known that the Kenyans are the best runners on the longer routes to marathon. An African group has now analyzed the results of runs from 800m to Marathon from 1964 to 2013. Depending on the running distance dominate different Kenyan ethnic groups.In the marathon the Nandi are best.On the train, on the other hand, the Maasais, Marakwets and Pokots.

Like the Nandi, runners of the ethnic groups of Keyos, Kikuyus, KIPSigis, Sabaots and Tugens are better in the marathon than on the train. This very interesting work can be found under https://pubmed.ncbi.nlm.nih.gov/25115138/

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Pacing over 100 km

Pacing strategy in male elite and age group 100 km ultra-marathoners The pacing in UltraLauf for 100 km and 100 miles for the top runners already examined. On the other hand, we do not know how the runners behave in the age groups.At 100 km run in Biel there are 3 places where the intermediate time of the runners is measured.We have now investigated whether there are differences in the age groups assuming that the older runners be slowed over the 100 km faster than the younger runners. From 2000 to 2009, the timekeep was always the same and it was first shown that the runners in the first segments were getting slower, but could turn up again on the last segment.If you look at the individual age groups, the running speed for all age group athletes sank in the first two segments.On the last segment, however, all runners could keep the speed while the runners were faster in the age group 40-44 years faster.Amazing is that the recent runners (18-24 years) showed the largest performance drop across the 100 km.

Dehydration for long-distance wheel driving

Hydration status affects mood state and pain sensation during ultra-endurance cycling In laboratory studies, it was postulated that dehydration influences the mood situation. In a field study with 119 cyclists, which drove over 161 km, it was investigated whether there could be a connection between dehydration and mood.

It clearly showed that dehydrated drivers suffered from more fatigue and pain than non-dehydrated drivers. The interesting work can be found under https://pubmed.ncbi.nlm.nih.gov/25793570/

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Unexpected intoxication

Not more than 1/16 of a coffee spoon, otherwise it will be dangerous! In a case report in ‘Swiss Medical Forum’, a 36-year-old man described which has taken a caffeine-containing product.

The doctors came to the conclusion that he has suffered a heavy caffeine monointoxication. In the extreme dining area - if the competitions go over days and nights - athletes and caregivers want to distribute the fatigue with caffeine. It is very worth reading the article and see what can happen if you get too much caffeine, see https://www.medicalforum.ch/docs/smf/2015/12/en/smf-02223.pdf

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Performance development in older athletes

Greater progression of athletic performance in older Masters athletes In recent years, fewer world records have been achieved in sports. On the other hand, the number of older athletes increased and their achievements were getting better.An American group examined the performance development over 100 m running, 400 m running and 100 m swimming from 1975 to 2013 for age-class athletes on world class levels.Over 100 m walk showed no improvement in the recent (fastest) group, but the times in the older age groups were getting better.

Hyponatriämie bei River Rafting

Three Cases of Severe Hyponatremia During a River Run in Grand Canyon National Park An American group has described three cases of hyponatremia at River Rafting. Three women have fed too much liquid because they meant to suffer dehydration in the longer stress.All three women had to be hospitalized and intensive care. In contrast to the stress-associated hyponatremia, there were no physical stresses here and yet there was a hyponatremia.

Case report of 'Catalina Channel Swim

Cardiovascular and Perceptual Responses to an Ultraendurance Channel Swim: A Case Study Mostly you know the swimming in the English Channel between England and France if you think of canal swimming. But there is also the ‘Catalina Channel’ in California, where a comparable channel swimming takes place.An American group has accompanied a swimmer over the 32.2 km and studied heart rate, water temperature, air temperature, speed and contemporary.

Although the effort became increasingly strong, the speed was constant. All interesting numbers can be read below https://pubmed.ncbi.nlm.nih.gov/25819111/

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Digestive complaints at ultra skills

Gastrointestinal distress is common during a 161-km ultramarathon. An American group has studied the aspect of digestive complaints in finishers on 100 miles, Western States Endurance Run ‘. With 272 runners (71% of the finishers) a questionnaire could be collected.Amazingly, 96% of the runners to have suffered complaints in the field of digestive tract suffered. In around 44% of the finishers, the complaints were eligible, leaving around 86% of nausea.

Where do the best 100-miles runners come from?

Participation and performance trends in 161km ultra-marathons in terms of nationality – a retrospective data analysis of worldwide participation from 1998-2011 In long-haul runs, the East African runner is known to dominate the marathon track.In ultra-sipe, the best runners are over 100 km from Japan.The 100 miles are performed mainly in the USA. We now examined from the period from 1998-2011 how the performance developed over 100 miles relating to the nationality of the runners.In the said period, the number of runners from North America, Europe and Australia increased.Most runners (84%) came from the USA.