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Pacing Variation in Multistage Ultramarathons: Internet-Based Cross-Sectional Study
A multistage ultramarathon is characterized as a running race with a distance longer than the marathon distance (42,195 km) or a timed event that can vary from 6 hours to several days [1]. Consequently, 50 km is the shortest standard distance considered a multistage ultramarathon, or 6 hours for a multistage ultramarathon considering the shortest time [2]. Other ultradistance races are 50 km, 100 km, or longer for distance events, with 6 hours up to 10 days for established events [3].
JMIR Form Res 2023;7:e46650
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When looking at the number of publications that include the terms ultratrail or ultraendurance or ultramarathon indexed on Pub Med, 650 references are found, with a significant increase in recent years (a total of 3 in 2000, a total of 20 in 2010, a total of 65 in 2015, and a total of 70 in 2020). However, the volume of publications remains low compared with other disciplines; for example, the terms soccer or tennis lead to 9974 and 8127 indexed articles, respectively.
JMIR Res Protoc 2022;11(6):e38027
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