Cited by 100Thermoregulation and physiological responsesCardiovascular and exercise physiologyExercise and Physiological Responses

Neck cooling and cognitive performance following exercise-induced hyperthermia.

Lee, Jason K. W., Koh, Aldrich C. H., Koh, Serene X. T., Liu, Glen J. X., Nio, Amanda Q. X., Fan, Priscilla W. P.·2014·European Journal of Applied Physiology

Abstract

Purpose To assess the efficacy of neck cooling on cognitive performance following exertional hyperthermia.Methods Twelve healthy men completed two experimental trials [control (CON) and neck cooling collar (NCC)] in a counter-balanced design. They ran on a treadmill at 70% VO2peak under warm and humid conditions (dry bulb temperature: 30.2 ± 0.3 °C, relative humidity: 71 ± 2 %) for 75 min or until volitional exhaustion. Gastrointestinal, neck and skin temperatures, heart rate and subjective ratings were assessed. Serum brain-derived neurotrophic factor (BDNF) levels were measured before and after each run. Cognitive performance comprising symbol digit matching, search and memory, digit span, choice reaction time and psychomotor vigilance test (PVT) were assessed before and after exercise.Results Mean gastrointestinal temperature was similar after exercise between trials (CON: 39.5 ± 0.4 °C vs. NCC: 39.6 ± 0.3 °C; p = 0.15). Mean neck temperature was lowered in NCC compared to CON after the run (36.4 ± 1.6 °C vs. NCC: 26.0 ± 0.3 °C; p < 0.001). Exercise-induced hyperthermia improved mean reaction time in the symbol digit matching test (-134 ± 154 ms; p < 0.05) and the PVT (-18 ± 30 ms; p < 0.05). Maximum span was increased in the digit span test (1 ± 2; p < 0.05). Application of NCC reduced the number of search errors made in level 3 of the search and memory test (p < 0.05). Mean serum BDNF levels were increased following exercise-induced hyperthermia in both trials (p < 0.05).Conclusion Exercise-induced hyperthermia improves working memory and alertness. Neck cooling may only enhance performance in tasks of higher complexity.

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Crossref · 10.1007/s00421-013-2774-9

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  • Relative changes in peripheral levels of blood lactate are correlated significantly with cognitive performance levels after high-intensity interval endurance exercises.

    “relative changes in peripheral levels of blood lactate are correlated significantly with cognitive performance levels after high-intensity interval endurance exercises (Lee et al., 2014; Tsukamoto et al., 2016; Hashimoto et al., 2017)”

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Authors
Lee, J. K. W., Koh, A. C. H., Koh, S. X. T., Liu, G. J. X., Nio, A. Q. X., & Fan, P. W. P.
Affiliations
  • DSO National Laboratories (SG)
  • National University of Singapore (SG)
  • Cardiff Metropolitan University (GB)
Corresponding author
Lee, Jason K. W.
Venue
European Journal of Applied Physiology
Published
2013-12-07
Volume
114
Issue
2
Pages
375-384
ISSN
  • 0020-9376 (ISSN-L)
  • 1439-6319
  • 1439-6327
OpenAlex
W2095587767
Cited by
100
References
40
Citations by year
2026: 4 · 2025: 8 · 2024: 6 · 2023: 9 · 2022: 11 · 2021: 7 · 2020: 9 · 2019: 10 · 2018: 13 · 2017: 7 · 2016: 10 · 2015: 4 · 2014: 2
FWCI
3.70
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • National University of Singapore (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
neck cooling, exercise-induced hyperthermia, cognitive performance, brain-derived neurotrophic factor, working memory, alertness, psychomotor vigilance, reaction time, heat stress, treadmill running, gastrointestinal temperature
MeSH terms
Adult, Body Temperature, Cognition, Heart Rate, Humans, Hyperthermia, Induced, Hypothermia, Induced, Male, Memory, Neck, Oxygen Consumption, Psychomotor Performance, Exercise, Case-Control Studies, Brain-Derived Neurotrophic Factor

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