TY - JOUR ID - 4057254 TI - Ice slurry ingestion during break times attenuates the increase of core temperature in a simulation of physical demand of match-play tennis in the heat SP - 371-379 JF - Temperature T2 - Temperature VL - 5 IS - 4 AU - Naito, T. AU - Sagayama, H. AU - Akazawa, N. AU - Haramura, M. AU - Tasaki, M. AU - Takahashi, H. PY - 2018 LA - English M3 - sport games M3 - biological and medical sciences KW - tennis KW - competition KW - performance KW - nutrition KW - fluid KW - temperature KW - weather KW - environment KW - climate KW - skin KW - thermoregulation KW - endurance KW - intermittent KW - perception SN - 2332-8940 AB - This investigation assessed the effect of ice slurry ingestion compared to that of cold water ingestion during break times on thermal strain and perception in simulated match-play tennis in the heat. Seven male recreational athletes (age = 22 ± 2 yr, height = 1.72 ± 0.08 m, Body mass = 64.8 ± 6.8 kg) performed two trials in a climate chamber, each time completing 4 sets of simulated match-play. During International Tennis Federation-mandated breaks (90-s between odd-numbered games; 120-s between sets), either ice slurry or cold water were ingested. The rectal temperature, forehead skin temperature, heart rate, rating of thermal comfort and total sweat loss were measured. The change in rectal temperature in the ice slurry trial was significantly lower than that in the cold water trial by game 3 of set 3 (p = 0.02). These differences in ?rectal temperature persisted throughout the remainder of the "match" (p < 0.05). Forehead skin temperature, heart rate and rating of thermal comfort were significantly lower in the ice slurry trial than in the cold water trial by the second half of the experiment (p < 0.05). Total sweat loss in ice slurry trial is significantly lower than cold water trial (p = 0.002). These results suggested that ice slurry ingestion was more effective than cold water ingestion in mitigating the development of heat strain during simulated match-play tennis in the heat. UR - https://doi.org/10.1080/23328940.2018.1475989 DO - 10.1080/23328940.2018.1475989 ER -