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CC BY-NC-ND 4.0 · Sports Med Int Open 2020; 04(02): E45-E52
DOI: 10.1055/a-1139-1761
Physiology & Biochemistry
Eigentümer und Copyright ©Georg Thieme Verlag KG 2020

Impact of Ice Slurry Ingestion During Break-Times on Repeated-Sprint Exercise in the Heat

Takashi Naito
1   Department of Sports Research, Japan Institute of Sports Sciences, Kita-ku, Japan
,
Miki Haramura
2   Faculty of Sport Sciences, Waseda University, Shinjuku-ku,Japan
3   Department of Sports Sciences, Japan Institute of Sports Sciences, Kita-ku, Japan
,
Koji Muraishi
3   Department of Sports Sciences, Japan Institute of Sports Sciences, Kita-ku, Japan
4   Graduate School of Community and Health Services, Rikkyo University, Niiza-city, Japan
,
Misa Yamazaki
3   Department of Sports Sciences, Japan Institute of Sports Sciences, Kita-ku, Japan
,
Hideyuki Takahashi
1   Department of Sports Research, Japan Institute of Sports Sciences, Kita-ku, Japan
› Author Affiliations
Further Information

Publication History

received 11 November 2019
revised 20 February 2020

accepted 08 March 2020

Publication Date:
04 May 2020 (online)

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Abstract

The study aimed to investigate the effects of ice slurry ingestion during break times and half-time (HT) on repeated-sprint performance and core temperature in the heat. Seven males performed two different trials as follows: ice slurry (−1°C) or room temperature water ingestion at each break and HT break at 36.5°C, 50% relative humidity. Participants performed 30 sets of 1-min periods of repeated- sprint exercises protocol using a cycling ergometer. Each period consisted of 5 sec of maximal pedaling, 25 sec of pedaling with no workload, and 30 sec of rest; two sets of exercise periods were separated by 10 min of rest. Each break was implemented for 1 min after every 5 sets. The rectal temperature in ice slurry ingestion was significantly lower than that of the room temperature water at 45 set (p=0.04). Total and mean work done was greater in ice slurry ingestion compared to room temperature water ingestion (p < 0.05). These results suggested that ice slurry ingestion during break times and HT break may be an effective cooling strategy to attenuate the rise of core temperature in the second half of exercise and improve the repeated-sprint exercise capacity in the heat.

Key word

cooling - rectal temperature - work done - forehead skin temperature - perceptual sensations
 

  • References

  • 1 Siegel R, Mate J, Watson G, Nosaka K, Laursen PB. Pre-cooling with ice slurry ingestion leads to similar run times to exhaustion in the heat as cold water immersion. J Sports Sci 2012; 30: 155-165
    CrossrefPubMedGoogle Scholar
  • 2 Ihsan M, Landers G, Brearley M, Peeling P. Beneficial effects of ice ingestion as a precooling strategy on 40-km cycling time-trial performance. Int J Sports Physiol Perform 2010; 5: 140-151
    CrossrefPubMedGoogle Scholar
  • 3 Naito T, Iribe Y, Ogaki T. Ice ingestion with a long rest interval increases the endurance exercise capacity and reduces the core temperature in the heat. J Physiol Anthropol 2017; 36: 9
    CrossrefPubMedGoogle Scholar
  • 4 Marino FE. Methods, advantages, and limitations of body cooling for exercise performance. Br J Sports Med 2002; 36: 89-94
    CrossrefPubMedGoogle Scholar
  • 5 Quod MJ, Martin DT, Laursen PB. Cooling athletes before competition in the heat: comparison of techniques and practical considerations. Sports Med 2006; 36: 671-682
    CrossrefPubMedGoogle Scholar
  • 6 Siegel R, Laursen PB. Keep your cool: possible mechanisms for enhanced exercise performance in the heat with internal cooling methods. Sports Med 2012; 42: 89-98
    CrossrefPubMedGoogle Scholar
  • 7 Siegel R, Mate J, Brearley MB, Watson G, Nosaka K, Laursen PB. Ice slurry ingestion increases core temperature capacity and running time in the heat. Med Sci Sports Exerc 2010; 42: 717-725
    PubMedGoogle Scholar
  • 8 Stevens CJ, Dascombe B, Boyko A, Sculley D, Callister R. Ice slurry ingestion during cycling improves Olympic distance triathlon performance in the heat. J Sports Sci 2013; 31: 1271-1279
    CrossrefPubMedGoogle Scholar
  • 9 Adams WB, Mcdermott BP, Schmit C, Kenny GP. Body cooling. In: Casa DJ Ed. Sport and Physical Activity in the Heat – Maximizing Performance and Safety. Switzerland: Springer; 2019: 59-81
    CrossrefGoogle Scholar
  • 10 Maunder E, Laursen PB, Kilding AE. Effect of ad libitum ice-slurry and cold-fluid ingestion on cycling time-trial performance in the heat. Int J Sports Physiol Perform 2017; 12: 99-105
    CrossrefPubMedGoogle Scholar
  • 11 Stanley J, Leveritt M, Peake JM. Thermoregulatory responses to ice-slush drink ingestion and exercise in the heat. Eur J Appl Physiol 2010; 110: 1163-1173
    CrossrefPubMedGoogle Scholar
  • 12 Naito T, Sagayama H, Akazawa N, Haramura M, Tasaki M, Takahashi H. 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. Temperature (Austin) 2018; 5: 371-379
    CrossrefPubMedGoogle Scholar
  • 13 Harriss DJ, Macsween A, Atkinson G. Standards for ethics in sport and exercise science research: 2018 update. Int J Sports Med 2017; 38: 1126-1131
    Article in Thieme ConnectPubMedGoogle Scholar
  • 14 Onitsuka S, Zheng X, Hasegawa H. Ice slurry ingestion reduces both core and facial skin temperatures in a warm environment. J Therm Biol 2015; 51: 105-109
    CrossrefPubMedGoogle Scholar
  • 15 Saldaris JM, Landers GJ, Lay BS, Zimmermann MR. Internal precooling decreases forehead and core temperature but does not alter choice reaction time during steady state exercise in hot, humid conditions. J Therm Biol 2019; 81: 66-72
    CrossrefPubMedGoogle Scholar
  • 16 Roberts MF, Wenger CB, Stolwijk JA, Nadel ER. Skin blood flow and sweating changes following exercise training and heat acclimation. J Appl Physiol 1977; 43: 133-137
    CrossrefPubMedGoogle Scholar
  • 17 Moran DS, Shitzer A, Pandolf KB. A physiological strain index to evaluate heat stress. Am J Physiol 1998; 275: R129-R134
    PubMedGoogle Scholar
  • 18 Kashimura O. Changes in thermal sensation during endurance exercise. J Phys Fitness. Sports Med 1986; 35: 264-269
    PubMedGoogle Scholar
  • 19 Borg GA. Psychophysical bases of perceived exertion. Med Sci Sports Exerc 1982; 14: 377-381
    PubMedGoogle Scholar
  • 20 Cohen J. Statistical Power Analysis for the Behavioral Sciences. 2nd ed. Hillsdale (NJ): Lawrence Erlbaum Associates 1988; 567p
    PubMedGoogle Scholar
  • 21 Onitsuka S, Ueno T, Zheng X, Hasegawa H. Effect of ice slurry ingestion during half-time breaks on intermittent exercise capacity and thermoregulation in the warm environment. Gazz Med Ital. Arch Sci Med 2015; 174: 113-121
    PubMedGoogle Scholar
  • 22 Castle PC, Macdonald AL, Philp A, Webborn A, Watt PW, Makwell NS. Precooling leg muscle improves intermittent sprint exercise performance in hot, humid conditions. J Appl Physiol 2006; 100: 1377-1384
    CrossrefPubMedGoogle Scholar
  • 23 Brade C, Dawson B, Wallman K. Effects of different precooling techniques on repeat sprint ability in team sport athletes. Eur J Sport Sci 2014; 14: S84-S91
    CrossrefPubMedGoogle Scholar
  • 24 Schlader ZJ, Simmons SE, Stannard SR, Mundel T. The independent roles of temperature and thermal perception in the control of human thermoregulatory behavior. Physiol Behav 2011; 103: 217-224
    CrossrefPubMedGoogle Scholar
  • 25 Naito T, Ogaki T. Comparison of the effects of cold water and ice ingestion on endurance cycling capacity in the heat. J Sport Health Sci 2017; 6: 111-117
    PubMedGoogle Scholar
  • 26 Soo J, Tang G, Arjunan SP, Pang J, Aziz AR, Ihsan M. The effects of lower body passive heating combined with mixed-method cooling during half-time on second-half intermittent sprint performance in the heat. Eur J Appl Physiol 2019; 119: 1885-1899
    CrossrefPubMedGoogle Scholar
  • 27 Onitsuka S, Nakamura D, Onishi T, Arimitsu T, Takahashi H, Hasegawa H. Ice slurry ingestion reduces human brain temperature measured using non-invasive magnetic resonance spectroscopy. Sci Rep 2018; 8: 2757
    CrossrefPubMedGoogle Scholar
  • 28 Jay O, Morris NB. Does cold water or ice slurry ingestion during exercise elicit a net body cooling effect in the heat?. Sports Med 2018; 48: 17-29
    PubMedGoogle Scholar
  • 29 Morris NB, Coombs G, Jay O. Ice slurry ingestion leads to a lower net heat loss during exercise in the heat. Med Sci Sports Exerc 2016; 48: 114-122
    PubMedGoogle Scholar
  • 30 Buller MJ, Latzka WA, Yokota M, Tharion WJ, Moran DS. A real-time heat strain risk classifier using heart rate and skin temperature. Physiol Meas 2008; 29: N79-N85
    PubMedGoogle Scholar
  • 31 Naito T, Ogaki T. Pre-cooling with intermittent ice ingestion lowers the core temperature in a hot environment as compared with the ingestion of a single bolus. J Therm Biol 2016; 59: 13-17
    CrossrefPubMedGoogle Scholar
  • 32 Aldous JWF, Chrismas BCR, Akubat I, Stringer CA, Abt G, Taylor L. Mixed-methods pre-match cooling improves simulated soccer performance in the heat. Eur J Sport Sci 2019; 19: 156-165
    CrossrefPubMedGoogle Scholar
  • 33 Maroni T, Dawson B, Dennis M, Naylor L, Brade C, Wallman K. Effects of half-time cooling using a cooling glove and jacket on manual dexterity and repeated-sprint performance in heat. J Sports Sci Med 2018; 17: 485-491
    PubMedGoogle Scholar
  • 34 Ozgunen KT, Kurdak SS, Maughan RJ, Zeren C, Korkmaz S, Yazici Z, Shirreffs SM, Binnet MS, Dvorak J. Effect of hot environmental conditions on physical activity patterns and temperature response of football players. Scand J Med Sci Sports 2010; 20: 140-147
    CrossrefPubMedGoogle Scholar