Changes in Running Economy During a 65-km Ultramarathon
نویسندگان
چکیده
منابع مشابه
Demographic characteristics of 161-km ultramarathon runners.
Despite considerable recent growth in ultramarathon running, little is known about the characteristics of the participants. This work documents demographic characteristics of 161-km ultramarathoners. Surveys were completed by 489 of 674 runners entered in two of the largest 161-km ultramarathons in North America in 2009. Respondents had a mean (± SD) age of 44.5 ± 9.8 years (range 20-72 years) ...
متن کاملPacing during an ultramarathon running event in hilly terrain
PURPOSE The dynamics of speed selection as a function of distance, or pacing, are used in recreational, competitive, and scientific research situations as an indirect measure of the psycho-physiological status of an individual. The purpose of this study was to determine pacing on level, uphill and downhill sections of participants in a long (>80 km) ultramarathon performed on trails in hilly te...
متن کاملThe biochemistry of runners in a 1600 km ultramarathon.
OBJECTIVE To investigate biochemical changes related to muscle breakdown, hepatic damage, hyponatraemia, and a number of other variables in the serum of participants in a 1600 km ultramarathon run. METHODS Blood samples were obtained from nine participants (seven men, two women) in a 1600 km foot race before, after 4 and 11 days of running, and at the conclusion of the event. Samples were ana...
متن کاملSacrificing economy to improve running performance--a reality in the ultramarathon?
We fully agree that the number of runners at the elite level is lower in ultramarathons than shorter distances. There is also no doubt that ultramarathon running is not as universal as running of “normal” distances, i.e., up to the marathon. In particular, African runners are not represented. This may explain part of the specificities of ultramarathon runners, such as a more variable body mass ...
متن کاملChanges in blood glucose levels during a 1005-km running race: a case study.
The blood glucose response of a male ultramarathon runner was monitored throughout a 1005-km race. Before the race the runner had a fasting blood glucose concentration of 5.1 mM. At no stage during the race were his mean blood glucose levels less than 5.8 mM. This was partially attributed to the eating patterns of the athlete, the times at which blood samples were taken, the glycaemic index of ...
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ژورنال
عنوان ژورنال: Frontiers in Physiology
سال: 2018
ISSN: 1664-042X
DOI: 10.3389/fphys.2018.01809