Pacing Variation in Multistage Ultramarathons: Internet-Based Cross-Sectional Study

Mielad Fariod; Rafael Reis Olher; Caio Victor Sousa; Volker Scheer; Ivan Cuk; Pantelis Theodoros Nikolaidis; Mabliny Thuany; Katja Weiss; Beat Knechtle

doi:10.2196/46650

Pacing Variation in Multistage Ultramarathons: Internet-Based Cross-Sectional Study

JMIR Form Res. 2023 Aug 23:7:e46650. doi: 10.2196/46650.

Authors

Mielad Fariod¹, Rafael Reis Olher², Caio Victor Sousa³, Volker Scheer⁴, Ivan Cuk⁵, Pantelis Theodoros Nikolaidis⁶, Mabliny Thuany⁷, Katja Weiss⁸, Beat Knechtle⁹

Affiliations

¹ Department of Orthopedic, Traumatology and Reconstructive Surgery, Klinikum Frankfurt-Höchst, Frankfurt, Germany.
² Department of Physical Education, University Center of Central Plateau Apparecido dos Santos, Brasilia, Brazil.
³ Health and Human Sciences, Loyola Marymount University, Los Angeles, CA, United States.
⁴ Ultra Sports Science Foundation, Pierre-Benite, France.
⁵ Faculty of Sport and Physical Education, University of Belgrade, Belgrade, .
⁶ School of Health and Caring Sciences, University of West Attica, Athens, Greece.
⁷ Faculty of Sports, University of Porto, Porto, Portugal.
⁸ Institute of Primary Care, University Hospital Zurich, Zurich, Switzerland.
⁹ Medbase St Gallen Am Vadianplatz, St Gallen, Switzerland.

PMID: 37610796
PMCID: PMC10483293
DOI: 10.2196/46650

Abstract

Background: Ultramarathon running is the most popular ultraendurance competition in terms of the number of races and runners competing annually worldwide; however, no study has compared pacing and performance over a long period.

Objective: This study analyzes the pacing of successful finishers and nonfinishers in multistage ultramarathons worldwide.

Methods: A total of 4079 athletes (men=3288; women=791) competing in 99 multistage ultramarathon events from 1983 to 2021 were analyzed, including the number of participants, age, gender, rank, and running speed of successful finishers.

Results: The results showed a significant increase in the number of events (n=338) and a significant increase in the number of finishers and nonfinishers (n=5575) in the ultramarathons worldwide during this period. The general linear models (GLMs) of pacing variation showed nonsignificant effects for gender (F_1,36.2=2.5; P=.127; η_p²=0.063) and age group (F_10,10=0.6; P=.798; η_p²=0.367), but it showed a significant interaction (gender × age) effect (F_10,2689=2.3; P=.008; η_p²=0.009). Post hoc analyses showed that men have a higher pacing variation than women in the under 30 years (U30), U35, U45, and U50 groups. Additionally, the fastest women's age group (U35) had the lowest pacing variation. The GLM of pacing variation by gender and event distance showed significant effects for both gender (F_1,3=18.5; P<.001; η_p²=0.007) and distance (F_2,3=20.1; P<.001; η_p²=0.015). Post hoc analyses showed a growing pacing variation with increasing race distance for both men and women. In addition, men had a higher variation in long events. Furthermore, there was a significant main effect for both genders (F_1,3=33.7; P<.001; η_p²=0.012) and rank (F_1,3=136.6; P<.001; η_p²=0.048) on performance, with men being faster than women. Pacing varied greatly due to gender (F_1,3=4.0; P=.047; η_p²=0.001), with a lower (ie, more even) pacing variation for male athletes in the top 3 finishers. Male nonfinishers showed a higher performance than female nonfinishers (F_1,1340=25.6; P<.001), and no difference was identified for pacing variation (F_1,789=1.5; P=.228) based on gender. In addition, a weak but significant correlation (r=-0.130; P<.001) was identified between the average running speed and pacing variation for both female and male nonfinishers.

Conclusions: In summary, multistage ultramarathon competitions showed an increasing number of competitors and a higher performance challenge. Men have a higher pacing (ie, less even) variation than women, especially observed in longer events. A higher pacing variation was associated with lower performance for men, women, and nonfinishers.

Keywords: gender difference; pacing; performance; ultramarathon; variation.

©Mielad Fariod, Rafael Reis Olher, Caio Victor Sousa, Volker Scheer, Ivan Cuk, Pantelis Theodoros Nikolaidis, Mabliny Thuany, Katja Weiss, Beat Knechtle. Originally published in JMIR Formative Research (https://formative.jmir.org), 23.08.2023.