Pace distribution during ultra-trail marathon.
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| Year of publication | 2013 |
| Type | Conference abstract |
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| Description | The purpose of this study was to determinate difference between pace changes during ultra-trail marathon and performance level. We divided the course of the Brnensky masakr (trail ultramarathon, length 61 km and 1984 m of positive altitude change, September 21st 2013) into twelve 5-km segments (last one-kilometre was excluded). Twenty-nine finishers (men category; 198 runners finished race) were used with GPS devices (Garmin Forerunner 910 XT) to record their position. Subjects were divided into 3 groups (A faster runners, n=10; B moderate, n=10; C slowest, n=9) by finishing time. Runners’ speed (RS) was normalized as ratio of stage and overall speed (RS > 1 means slower speed in segment of course than overall speed). ANOVA was used to identify difference between groups, there was found interaction (group * split; < 0.05). Values of normalized RS were in range of 0.67 (B group, 10-15 km) and 1.34 (B group, 5-10 km). RS is generally linked with elevation changes and technical difficulties of the trail race. Biggest difference between groups on single part of course was found between 30 and 35 km (A=1.12; B=1.18; C=1.25) and smallest difference was in the first 5 km (A=0.86; B=0.86; C=0.84). In spite of the fastest part (10-15 km) and the slowest part (5-10 km) of the race, first part of course has tendencies to been run faster than the second one. No other patterns in pace distribution between different performance levels were found. |