Assessment of Physical Demands and Fluid Balance in Elite Female Handball Players During a 6-Day Competitive Tournament

摘要

Little data exists on drinking behavior, 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 degrees 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 were 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 (r(2) = .121, p = .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 (r(2) = .181, p = .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.