Metabolomic stability of exercise-induced sweat

Secretion of eccrine sweat glands during exercise.

Comparison of sweat rate during graded exercise and the local rate induced by pilocarpine.

Centrally stimulated sweat rate produced by graded exercise until exhaustion was compared to the local sweat rate induced by pilocarpine, often used as a sweating index for healthy individuals. Nine young male volunteers (22 +/- 4 years) were studied in temperate environment in two situations: at rest and during progressive exercise with 25 W increases every 2 min until exhaustion, on a cycle e...

Exercise-induced trace mineral element concentration in regional versus whole-body wash-down sweat.

Simultaneous whole-body wash-down (WBW) and regional skin surface sweat collections were completed to compare regional patch and WBW sweat calcium (Ca), magnesium (Mg), copper (Cu), manganese (Mn), iron (Fe), and zinc (Zn) concentrations. Athletes (4 men, 4 women) cycled in a plastic open-air chamber for 90 min in the heat. Before exercise, the subjects and cycle ergometer (covered in plastic) ...

Improving the prediction of sweat losses during exercise.

In this issue, Gonzalez et al. (4) report new sweating rate equations that not only provide a more accurate estimation of water requirements within the boundary conditions of the widely used original Shapiro equation (OSE) (11) but also encompasses higher metabolic rates ( 800 W), lower air temperatures (15°C), extended exercise durations (2 to 8 h), and up-to-date clothing ensembles. Additiona...

Metabolomic response to exercise training in lean and diet-induced obese mice.

Exercise training is a common therapeutic approach known to antagonize the metabolic consequences of obesity. The aims of the present study were to examine 1) whether short-term, moderate-intensity exercise training alters the basal metabolite profile and 2) if 10 days of mild exercise training can correct obesity-induced shifts in metabolic spectra. After being weaned, male C57BL/6J littermate...