抄録
Purpose The purpose of this study was to examine the effects of pre-cooling and fluid replacement with either crushed ice or cold water. Methods On 2 separate occasions, in a counterbalanced order, 9 recreationally-trained males ingested 1.25 g/kg (80–100 g) of either crushed ice (0.5°C) or cold water (4°C) every 5 min for 30 min before exercise. They also ingested 2.0 g/kg (130–160 g) of the same treatment drink at 15 min, 30 min, and 45 min after the commencement of cycling to exhaustion at 60%VO2max until voluntary exhaustion in a hot environment (35°C and 30% relative humidity). Results The cycling time to exhaustion in the crushed ice trial (50.0 ± 12.2 min) was longer than the cold water trial (42.2 ± 10.1 min; p = 0.02). Although the rectal temperature fell by 0.37°C ± 0.03°C (p = 0.01) at the end of the resting period after the crushed ice ingestion, the rates of rise in rectal temperature during the exercise period were not significantly different between these 2 conditions (crushed ice: 0.23°C ± 0.07°C, 5 min; cold water: 0.22°C ± 0.07°C, 5 min; p = 0.94). Conclusion Crushed ice ingestion before and during exercise in a hot environment may be a preferred and effective approach for minimizing thermal strain, and for improving endurance performance as compared with cold water ingestion.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 111-117 |
| ページ数 | 7 |
| ジャーナル | Journal of Sport and Health Science |
| 巻 | 6 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | 出版済み - 3 1 2017 |
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All Science Journal Classification (ASJC) codes
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation
これを引用
Comparison of the effects of cold water and ice ingestion on endurance cycling capacity in the heat. / Naito, Takashi; Ogaki, Tetsuro.
：: Journal of Sport and Health Science, 巻 6, 番号 1, 01.03.2017, p. 111-117.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Comparison of the effects of cold water and ice ingestion on endurance cycling capacity in the heat
AU - Naito, Takashi
AU - Ogaki, Tetsuro
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Purpose The purpose of this study was to examine the effects of pre-cooling and fluid replacement with either crushed ice or cold water. Methods On 2 separate occasions, in a counterbalanced order, 9 recreationally-trained males ingested 1.25 g/kg (80–100 g) of either crushed ice (0.5°C) or cold water (4°C) every 5 min for 30 min before exercise. They also ingested 2.0 g/kg (130–160 g) of the same treatment drink at 15 min, 30 min, and 45 min after the commencement of cycling to exhaustion at 60%VO2max until voluntary exhaustion in a hot environment (35°C and 30% relative humidity). Results The cycling time to exhaustion in the crushed ice trial (50.0 ± 12.2 min) was longer than the cold water trial (42.2 ± 10.1 min; p = 0.02). Although the rectal temperature fell by 0.37°C ± 0.03°C (p = 0.01) at the end of the resting period after the crushed ice ingestion, the rates of rise in rectal temperature during the exercise period were not significantly different between these 2 conditions (crushed ice: 0.23°C ± 0.07°C, 5 min; cold water: 0.22°C ± 0.07°C, 5 min; p = 0.94). Conclusion Crushed ice ingestion before and during exercise in a hot environment may be a preferred and effective approach for minimizing thermal strain, and for improving endurance performance as compared with cold water ingestion.
AB - Purpose The purpose of this study was to examine the effects of pre-cooling and fluid replacement with either crushed ice or cold water. Methods On 2 separate occasions, in a counterbalanced order, 9 recreationally-trained males ingested 1.25 g/kg (80–100 g) of either crushed ice (0.5°C) or cold water (4°C) every 5 min for 30 min before exercise. They also ingested 2.0 g/kg (130–160 g) of the same treatment drink at 15 min, 30 min, and 45 min after the commencement of cycling to exhaustion at 60%VO2max until voluntary exhaustion in a hot environment (35°C and 30% relative humidity). Results The cycling time to exhaustion in the crushed ice trial (50.0 ± 12.2 min) was longer than the cold water trial (42.2 ± 10.1 min; p = 0.02). Although the rectal temperature fell by 0.37°C ± 0.03°C (p = 0.01) at the end of the resting period after the crushed ice ingestion, the rates of rise in rectal temperature during the exercise period were not significantly different between these 2 conditions (crushed ice: 0.23°C ± 0.07°C, 5 min; cold water: 0.22°C ± 0.07°C, 5 min; p = 0.94). Conclusion Crushed ice ingestion before and during exercise in a hot environment may be a preferred and effective approach for minimizing thermal strain, and for improving endurance performance as compared with cold water ingestion.
UR - http://www.scopus.com/inward/record.url?scp=85006215464&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85006215464&partnerID=8YFLogxK
U2 - 10.1016/j.jshs.2015.12.002
DO - 10.1016/j.jshs.2015.12.002
M3 - Article
AN - SCOPUS:85006215464
VL - 6
SP - 111
EP - 117
JO - Journal of Sport and Health Science
JF - Journal of Sport and Health Science
SN - 2095-2546
IS - 1
ER -