What Influences Race Performance in Male Open-Water Ultra-Endurance Swimmers: Anthropometry or Training? We have examined in male long-distance swimming at ‘Zürichsee swim’ if we find a connection between training and physique with the closing time. Surprisingly, variables of body construction such as muscle mass or body fat had no connection with the floating time, but the average speed in swimming in training, read below https://www.zora.uzh.ch/id/epprint/34491/