“…However, in many countries, including Great Britain and the United States (Nikolaidis et al, 2018), Switzerland, Italy (Rüst et al, 2014b), Canada (Rüst et al, 2014a), Australia, and Poland, long-distance races and swimming marathons, such as the Manhattan Island Marathon Swim (Knechtle et al, 2014a), the Catalina Channel Swim (Knechtle et al, 2015), and the Zurich Lake Marathon Swim (Eichenberger et al, 2013), are becoming increasingly popular (Knechtle et al, 2014b). Every year, many swimmers undertake extremely difficult challenges such as attempting to cross extremely long distances in seas, lakes, and rivers (Khodaee et al, 2016; Valenzano et al, 2016). More than 1800 swimmers, including 571 females from more than 40 countries, successfully completed swimming the English Channel (approximately 32.2 km) prior to 2013 (Knechtle et al, 2014b).…”