The fluid balance of special populations
Katherine E. Black
2134/35261
https://repository.lboro.ac.uk/articles/thesis/The_fluid_balance_of_special_populations/9608753
In humans, sweating is one of the most variable routes of water loss. This thesis investigates
sweat volumes and sweat composition during single training sessions. Chapter 4 investigates the
variability of sweat losses and sweat composition between four training sessions. Forty-five able-bodied
individuals (twenty males and twenty-five females) volunteered for the study and ranged in age from 18–65
years. Data was collected during the participants normal training sessions, consisting of various
recreational pursuits. Sweat losses were determined by changes in body mass over the training
session, and corrected for any fluid intake and urine losses during training. A sample of
participants' sweat was obtained via adhesive gauze patches and analysed for sodium, potassium
and chloride concentrations. Sweat samples were obtained from the shoulder, chest, forearm and
thigh. The 95% confidence intervals determined from this study demonstrated the reliability of
a single training session to estimate an individual's future hydration to within 2% of initial body
mass. [Continues.]
2018-10-09 13:31:51
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Medical and Health Sciences not elsewhere classified