This is a project we conducted before the London Olympics. Some interesting data on sweat rates in female handball players are presented.
Assessment of Physical Demands and Fluid Balance in Elite Female Handball Players During a 6-Day Competitive Tournament.
Little data exists on drinking behaviour, sweat loss and exercise intensity across a competitive handball tournament in elite female athletes. Heart rate (HR), fluid balance and sweat electrolyte content were assessed on 17 international players across a 6-day tournament involving 5 games and 2 training sessions played indoors (23 ± 2°C, 30 ± 2% relative humidity). Active play (effective) mean HR was 155 ± 14 bpm (80 ± 7.5% HRmax) with the majority of time (64%) spent exercising at intensities >80% HRmax. Mean (SD) sweat rates during games was 1.02 ± 0.07 L·h-1 and on 56% of occasions fluid intake matched or exceeded sweat loss. A significant relationship was observed between estimated sweat loss and fluid intake during exercise (r2 = 0.121, P = 0.001). Mean sweat sodium concentration was 38 ± 10 mmol·L-1, with significant associations observed between player sweat rates and time spent exercising at intensities >90% HRmax (r2 = 0.181, P = 0.001). Fluid and electrolyte loss appear to be work rate dependent in elite female handball players, whom appear well capable of replacing fluids lost within a tournament environment. Due to large between-athlete variations, a targeted approach may be warranted for certain players only.
- [PubMed – as supplied by publisher]