Body mass, fluid intake and sweat loss Participants wore the same clothing (shirt or singlet and shorts) during each training session. Before and after each session, nude BM was recorded using standardized weighing scales (Personal Precision Scale UC-321, A&D, South Australia, Australia and Seca 803, Seca, Hamburg, Germany) measured to the nearest 10 g for calculation of BM pre- to post-session. No participants had need for urinary void during any training session for rugby or soccer.
