Bergeron M F
Department of Health Science, College of Health, University of North Florida, Jacksonville 32224-2645, USA.
Int J Sport Nutr. 1996 Mar;6(1):62-8. doi: 10.1123/ijsn.6.1.62.
A 17-year-old, nationally ranked, male tennis player (AH) had been experiencing heat cramps during tennis match play. His medical history and previous physical exams were unremarkable, and his in-office blood chemistry profiles were normal. On-court evaluation and an analysis of a 3-day dietary record revealed that AH's sweat rate was extensive (2.5 L.hr-1) and that his potential daily on-court sweat sodium losses (89.8 mmol.hr of play-1) could readily exceed his average daily intake of sodium (87.0-174.0 mmol.day-1). The combined effects of excessive and repeated fluid and sodium losses likely predisposed AH to heat cramps during play. AH was ultimately able to eliminate heat cramps during competition and training by increasing his daily dietary intake of sodium.
一名17岁、全国排名靠前的男性网球运动员（AH）在网球比赛期间一直经历热痉挛。他的病史和之前的体格检查均无异常，其门诊血液化学指标也正常。场上评估以及对一份为期3天的饮食记录的分析显示，AH的出汗率很高（2.5升·小时⁻¹），且他每天在场上潜在的汗液钠流失量（每比赛1小时89.8毫摩尔）很容易超过他钠的平均每日摄入量（87.0 - 174.0毫摩尔·天⁻¹）。过度且反复的液体和钠流失的综合影响可能使AH在比赛期间易患热痉挛。AH最终通过增加每日饮食中的钠摄入量，在比赛和训练期间消除了热痉挛。
