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August 15, 2008The Journal of PhysiologyOpen Access

During brief MVC, torque was significantly lower in both Hot and HHC compared to Con (P < 0.05), and memory tests showed significant decrements in Hot compared to Con (P < 0.05).

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Why the study?

Does passive hyperthermia impair motor drive and cognitive function, and can head cooling limit these alterations?

Population

16 subjects

Comparison

Passive hyperthermia with or without head… vs Control condition (20 degrees C) for 2 hours

Design

RCT, randomly exposed

Follow-up

2 hours

Authors

SRSébastien RacinaisNGNadia GaouaJGJustin Grantham

Discussion

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Overview

Hyperthermia warrants mitigation in heat-exposed tasks; extends RCT evidence that head cooling selectively preserves cognition.

Structured PICO

Does passive hyperthermia impair motor drive and cognitive function, and can head cooling limit these alterations?

P
Population
16 subjects
I
Intervention
Passive hyperthermia (50 degrees C) with or without head cooling (cold packs applied to the head) for 2 hours
C
Comparator
Control condition (20 degrees C) for 2 hours
O
Outcome
Motor drive (torque, muscle activation, M-waves, H-reflex) and cognitive function (attention and memory tests)surrogate

Passive hyperthermia impairs short-term memory and peripheral motor drive transmission, while head cooling can preserve some memory capacity.

Cite This Study

Racinais et al. (2008) studied this question.

synapsesocial.com/papers/69d9783a00ab073a27836b1ahttps://doi.org/10.1113/jphysiol.2008.157420
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