So far, changes in anthropometric characteristics have only been investigated by comparing pre-race and post-race values, with little data about the recovery period available. It is well known that an ultra-marathon leads to a decrease in body mass however, the impact of a 48 h run has not been examined yet. While the case study of the 94-year-old runner in a 6 h run also considered aspects of changes in anthropometric characteristics, we have only limited data about changes in anthropometric characteristics (e.g., body mass, body water) in ultra-marathoners competing in race distances longer than 100 km. To the best of our knowledge, no further studies have ever investigated the pacing strategy of a master ultra-marathoner competing in any ultra-marathon longer than 6 h and/or 100 miles. For master athletes (i.e., runners of 35 years and older), two studies investigated the pacing trends in 100 km ultra-marathoners and, in one case study, the pacing of a 94-year-old runner in a 6 h run. For ultra-marathon races, mainly elite athletes have been investigated, competing in 100 km and 100 mile ultra-marathons. In ultra-marathon running (i.e., any running distance longer than the marathon distance and/or longer in duration than 6 h), little data are available for pacing in both elite and master athletes. In running, pacing strategies have been investigated for different distances, such as half-marathon, marathon, and ultra-marathon distances, and for both master runners and elite athletes. Pacing describes how an athlete distributes his work and energy throughout an exercise task.
Pacing during endurance or ultra-endurance performance seems to have a considerable impact on overall performance. Considering the popularity of ultra-endurance running races, the findings of the present study offered valuable insight in the pacing and changes of body mass and body water during a 48 h run, and this information can be used by ultra-endurance runners and practitioners working with them. There was no statistically significant relationship between the decrease in body mass and the increase in percent body water. Body mass decreased, while percent body water increased, non-linearly, across the race.
The runner achieved a total distance of 230 km and running speed decreased non-linearly during the race. The changes in running speed during the race and selected anthropometric characteristics using bioelectrical impedance analysis (i.e., body mass and body water), during and after the race, were analyzed.
In this case study, a 54-year-old master ultra-marathoner-intending to achieve as many kilometers as possible in a 48 h run-was examined. Pacing has been investigated in elite and master runners competing in marathon and ultra-marathon races up to 100 km and 100 miles, but not in longer ultra-marathons.
0 kommentar(er)
