Kerem Mustafa, Öztürk Furkan, Taşkın Hasan Basri, Dudak Ercan, Ceylan Bayram
Department of Coaching Education, Faculty of Sport Sciences, Kastamonu University, Kastamonu, 37150, Türkiye, Turkey.
Department of Coaching Education, Faculty of Sport Sciences, Düzce University, Düzce, Türkiye.
BMC Sports Sci Med Rehabil. 2025 Aug 15;17(1):240. doi: 10.1186/s13102-025-01300-5.
This study aimed to present changes in hydration status of orienteering athletes during a two-day race. Twenty elite male orienteers voluntarily participated in the study during a two-day race. Athletes' hydration status was measured two consecutive race days via urine specific gravity (USG) and fluid consumption was followed. There was a significant main effect of time on USG values (F=3.70, p = 0.04, η2 = 0.29, ES = Large). USG values increased from the day one morning (1.019 ± 0.008) to post-race on day two (1.026 ± 0.003) (p = 0.04), from 3 h post-race on day one (1.018 ± 0.007) to post-race on day two (1.026 ± 0.003) (p = 0.01) and pre (1.019 ± 0.004) to post-race (1.026 ± 0.003) on day two (p = 0.001). Both races worsened hydration level of the athletes and they could not rehydrate post-race on day two despite fluid intake ad libitum. These findings suggest that orienteering athletes presented hypohydration following consecutive races as suggested by USG values on day two. Therefore, specific rehydration plan could be developed and applied for proper hydration status in these athletes. Clinical trial number: Clinical trial number is not applicable for this study.
本研究旨在呈现定向越野运动员在为期两天的比赛期间水合状态的变化。20名精英男性定向越野运动员在一场为期两天的比赛中自愿参与了该研究。在连续两个比赛日通过尿比重（USG）测量运动员的水合状态，并记录液体摄入量。时间对USG值有显著的主效应（F = 3.70，p = 0.04，η2 = 0.29，效应量 = 大）。USG值从第一天上午（1.019±0.008）增加到第二天赛后（1.026±0.003）（p = 0.04），从第一天赛后3小时（1.018±0.007）增加到第二天赛后（1.026±0.003）（p = 0.01），以及从第二天赛前（1.019±0.004）增加到赛后（1.026±0.003）（p = 0.001）。两场比赛都使运动员的水合水平恶化，尽管随意摄入液体，但他们在第二天赛后仍无法补充水分。这些发现表明，根据第二天的USG值，定向越野运动员在连续比赛后出现了低水合状态。因此，可以制定并应用特定的补液计划，以使这些运动员保持适当的水合状态。临床试验编号：本研究不适用临床试验编号。
