Michelle T Barrack

Jul 10, 2023 | frontiersin.org | Stacy Sims |Michelle T Barrack |Esme Jordaan

1. IntroductionUltramarathon runners, ultramarathoners, or ultrarunners participate in runs and races longer than 42,195 meters. They can be amateurs, recreational joggers, or professional athletes. Participation in such competitions is often motivated by the desire for personal achievements, general health, and psychological reasons (1). The age of participants varies greatly, but peak performances are often achieved at 35 or older (2).