Methods of Estimating the Effect of Integral Motorcycle Helmets on Physiological and Psychological Performance

Bogdan, A.; Sudoł‐Szopińska, Iwona; Łuczak, Anna; Konarska, Maria; Pietrowski, P.

doi:10.1080/10803548.2012.11076938

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…Evidence from sporting helmets suggests an effect on the head microenvironment, blood flow and overall performance. In 2012, Bogdan et al found that a motorcycle helmet significantly increased head and core temperatures, in addition to thermal sensations (Bogdan et al 2012). Investigations have shown that the American football helmet increases the rate of core temperature elevation during exercise while decreasing the time to exhaustion (Armstrong et al 2010) and impairments in cognition have also been observed in cricketers (Neave et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Effect of vented helmets on heat stress during wildland firefighter simulation

Christison

Gurney

Dumke

2021

Int. J. Wildland Fire

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Uncompensable heat from wildland firefighter personal protective equipment decreases the physiological tolerance while exercising in the heat. Our previous work demonstrated that the standard wildland firefighter helmet significantly increases both perceived and actual head heat. This study compared heat accumulation under simulated working conditions while wearing a standard non-vented helmet versus a vented helmet. Ten male subjects randomly completed two trials separated by a 2-week washout. Subjects walked 180min (5.6kmh−1, 5% grade) in a heat chamber (35°C, 30% relative humidity) broken into three segments of 50min of exercise and 10min rest, followed by a work capacity test to exhaustion. Each trial measured the physiological strain index, perceived head heat, helmet temperature and relative humidity, rating of perceived exertion and heart rate. At the end of the 3-h trial heart rate, physiological strain, perceived exertion, helmet temperature and humidity showed the main effects of time (P<0.05) but were not different between trials. Work capacity was significantly greater in the vented trial (P=0.001). End-trial strain and heart rate were significantly related to work performed (r=–0.8, P<0.001). Elevated work, trends for changes in perceived exertion, helmet microenvironment and perceived head heat suggest greater heat dissipation and comfort with the vented helmet.

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Section: Introductionmentioning

confidence: 99%

Effect of vented helmets on heat stress during wildland firefighter simulation

Christison

Gurney

Dumke

2021

Int. J. Wildland Fire

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Effect of uncompensable heat from the wildland firefighter helmet

Gurney

Christison²,

Stenersen³

et al. 2021

Int. J. Wildland Fire

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Heat accumulation from wearing personal protective equipment can result in the development of heat-related illnesses. This study aimed to investigate factors of heat stress with and without a US standard issue wildland firefighter helmet. Ten male subjects finished a 90-min exercise protocol in a heat chamber (35°C and 30% relative humidity), with standard issue meta-aramid shirt and pants and a cotton t-shirt, and either with or without a wildland firefighter helmet. A randomised crossover design was implemented, with a minimum 2-week washout period. Heart rate, physiologic strain index, perceived head heat, head heat and skin blood flow of the head and neck were measured. At the conclusion of the 90-min trial, heart rate, physiological strain index, core temperature, rating of perceived exertion and perceived head heat showed a main effect of time (P < 0.05). Perceived head heat and head heat exhibited a main effect of trial (P < 0.05). The change in physiologic strain was positively correlated with the change in skin blood flow of the head (r = 0.72, P = 0.02). These data suggest that the current wildland firefighter helmet contributes to heat accumulation. The design of the wildland firefighter helmet lacks ventilation, which, from these data, may result in metabolic alterations and perceived discomfort.

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Methods of Estimating the Effect of Integral Motorcycle Helmets on Physiological and Psychological Performance

Abstract: This article proposes a method for a comprehensive assessment of the effect of integral motorcycle helmets onintegral helmet motorcyclist thermophysiology motorcyclist cognitive functions physiological response

Cited by 2 publications

References 17 publications

Effect of vented helmets on heat stress during wildland firefighter simulation

Effect of vented helmets on heat stress during wildland firefighter simulation

Effect of uncompensable heat from the wildland firefighter helmet

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