Comparison of the effect of post-exercise cooling with ice slurry ingestion between males and females

Iwata, Risa; Kawamura, Takanobu; Hosokawa, Yuri; Chang, Lili; Suzuki, Katsuhiko; Muraoka, Isao

doi:10.1016/j.jtherbio.2021.102979

Cited by 2 publications

(1 citation statement)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our search identified 558 abstracts. Initially, 101 reports seemed possibly relevant, but after a thorough full-text review, only 47 studies were included (Lee and Shirreffs, 2007;Burdon et al, 2010;Ihsan et al, 2010;Stanley et al, 2010;Byrne et al, 2011;Siegel et al, 2011;Bain et al, 2012;Burdon et al, 2013;Hue et al, 2013;Brade et al, 2014;Morris et al, 2014;Burdon et al, 2015;Hue et al, 2015;James et al, 2015;Lamarche et al, 2015;Pryor et al, 2015;Schulze et al, 2015;Zimmermann and Landers, 2015;Hailes et al, 2016;Morris et al, 2016;Stevens et al, 2016;Tay et al, 2016;Flood et al, 2017;Gerrett et al, 2017;Takeshima et al, 2017;Jeffries et al, 2018;Ng et al, 2018;Snipe and Costa, 2018;Watkins et al, 2018;Aldous et al, 2019;Gibson et al, 2019;Ng et al, 2019;Thomas et al, 2019;Iwata et al, 2020;Naito et al, 2020;Nakamura et al, 2020;Onitsuka et al, 2020;Saldaris et al, 2020;Alhadad et al, 2021;Gavel et al, 2021;Parton e...…”

Section: Study Characteristicsmentioning

confidence: 99%

Effects of internal cooling on physical performance, physiological and perceptional parameters when exercising in the heat: A systematic review with meta-analyses

et al. 2023

View full text Add to dashboard Cite

Background: An elevated core temperature (Tcore) increases the risk of performance impairments and heat-related illness. Internal cooling (IC) has the potential to lower Tcore when exercising in the heat. The aim of the review was to systematically analyze the effects of IC on performance, physiological, and perceptional parameters.Methods: A systematic literature search was performed in the PubMed database on 17 December 2021. Intervention studies were included assessing the effects of IC on performance, physiological, or perceptional outcomes. Data extraction and quality assessment were conducted for the included literature. The standardized mean differences (SMD) and 95% Confidence Intervals (CI) were calculated using the inverse-variance method and a random-effects model.Results: 47 intervention studies involving 486 active subjects (13.7% female; mean age 20–42 years) were included in the meta-analysis. IC resulted in significant positive effects on time to exhaustion [SMD (95% CI) 0.40 (0.13; 0.67), p < 0.01]. IC significantly reduced Tcore [−0.19 (22120.34; −0.05), p < 0.05], sweat rate [−0.20 (−0.34; −0.06), p < 0.01], thermal sensation [−0.17 (−0.33; −0.01), p < 0.05], whereas no effects were found on skin temperature, blood lactate, and thermal comfort (p > 0.05). IC resulted in a borderline significant reduction in time trial performance [0.31 (−0.60; −0.02), p = 0.06], heart rate [−0.13 (−0.27; 0.01), p = 0.06], rate of perceived exertion [−0.16 (−0.31; −0.00), p = 0.05] and borderline increased mean power output [0.22 (0.00; 0.44), p = 0.05].Discussion: IC has the potential to affect endurance performance and selected physiological and perceptional parameters positively. However, its effectiveness depends on the method used and the time point of administration. Future research should confirm the laboratory-based results in the field setting and involve non-endurance activities and female athletes.Systematic review registration:https://www.crd.york.ac.uk/PROSPERO/, identifier: CRD42022336623.

show abstract

Section: Study Characteristicsmentioning

confidence: 99%

Effects of internal cooling on physical performance, physiological and perceptional parameters when exercising in the heat: A systematic review with meta-analyses

et al. 2023

View full text Add to dashboard Cite

show abstract

Compromised heat loss leads to a delayed ice slurry induced reduction in heat storage

O’Brien,

Goosey-Tolfrey,

Leicht

2024

PLoS ONE

View full text Add to dashboard Cite

Compromised heat loss due to limited convection and evaporation can increase thermal strain. We aimed to determine the effectiveness of ice slurry ingestion to reduce thermal strain following hyperthermia in a state of compromised heat loss. Twelve healthy males (age: 25 ± 4y) underwent hot water immersion to elevate rectal temperature (Trec) by 1.82 ± 0.08°C on four occasions. In the subsequent 60-min of seated recovery, participants ingested either 6.8 g·kg-1 of ice slurry (-0.6°C) or control drink (37°C) in ambient conditions (21 ± 1°C, 39 ± 10% relative humidity), wearing either t-shirt and shorts (2 trials: ICE and CON) or a whole-body sweat suit (2 trials: ICE-SS and CON-SS). Trec and mean skin temperature (Tsk) were recorded and a two-compartment thermometry model of heat storage was calculated. Heat storage was lower in ICE compared with CON at 20-40min (p ≤ 0.044, d ≥ 0.88) and for ICE-SS compared with CON-SS at 40–60 min (p ≤ 0.012, d ≥ 0.93). Trec was lower in ICE compared with CON from 30-60min (p ≤ 0.034, d ≥ 0.65), with a trend for a reduced Trec in ICE-SS compared with CON-SS at 40min (p = 0.079, d = 0.60). A greater Tsk was found in ICE-SS and CON-SS compared with ICE and CON (p < 0.001, d ≥ 3.37). A trend for a lower Tsk for ICE compared with CON was found at 20-40min (p ≤ 0.099, d ≥ 0.53), no differences were found for ICE-SS vs CON-SS (p ≥ 0.554, d ≤ 0.43). Ice slurry ingestion can effectively reduce heat storage when heat loss through convection and evaporation is compromised, relevant to those wearing personal protective equipment or those with compromised sweat loss. Compromised heat loss delays the reduction in heat storage, possibly related to ice slurry ingestion not lowering Tsk.

show abstract

Comparison of the effect of post-exercise cooling with ice slurry ingestion between males and females

Cited by 2 publications

References 22 publications

Effects of internal cooling on physical performance, physiological and perceptional parameters when exercising in the heat: A systematic review with meta-analyses

Effects of internal cooling on physical performance, physiological and perceptional parameters when exercising in the heat: A systematic review with meta-analyses

Compromised heat loss leads to a delayed ice slurry induced reduction in heat storage

Contact Info

Product

Resources

About