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Updated: May 27, 2026
08:16
Ice Generation and the Heat and Mass Transfer Phenomena of Introducing Water to a Cold Bath of Brine
Published on: March 13, 2017
Ice slurry ingestion increases running time in the heat
1The Science of Sport, Chicago, Illinois, USA.
Summary
Drinking an ice slurry before exercise in heat significantly prolonged time to exhaustion compared to cold water. This performance enhancement was linked to improved thermoregulation, with lower core temperatures during exercise.
Area of Science:
- Exercise Physiology
- Environmental Heat Stress
- Human Thermoregulation
Background:
- Investigating the ergogenic effects of pre-exercise cold ingestion, specifically ice slurry versus cold water, during prolonged submaximal exercise in hot conditions.
- Assessing the impact on thermoregulatory responses and exercise performance.
Discussion:
- Ice slurry ingestion led to a significant 19% increase in time to exhaustion compared to cold water.
- Ice slurry reduced core body temperature during the initial stages of exercise and lowered perceived exertion.
- Despite lower initial core temperatures, rectal temperature rose higher at exhaustion following ice slurry consumption.
Key Insights:
- Pre-exercise ice slurry consumption is an effective ergogenic aid for prolonged exercise in the heat.
- Ice slurry ingestion improves exercise performance by enhancing thermoregulation and reducing thermal discomfort.
- The findings suggest that athletes can tolerate higher core temperatures when utilizing ice slurry pre-cooling.
Outlook:
- Further research could explore optimal ice slurry dosages and temperatures for various environmental conditions and exercise intensities.
- Investigating the long-term effects and practical applications of ice slurry pre-cooling in different athletic populations.
- Examining the physiological mechanisms underlying the sustained thermoregulatory benefits of ice slurry during prolonged exercise.
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