Physiological and perceptual responses while wearing stab-resistant body armor in hot and humid environment.
J Therm Biol
; 86: 102451, 2019 Dec.
Article
en En
| MEDLINE
| ID: mdl-31789239
ABSTRACT
The aim of this study was to investigate the physiological and perceptual responses of the human body wearing stab-resistant body armor (SRBA) in a hot and humid environment. The responses of five healthy male volunteers wearing SRBA were compared with those under a Control condition (wearing T-shirt) in a hot and humid environment (38⯰C and relative humidity of 60%). The participants walked on a treadmill at a speed of 6â¯km/h for 60â¯min and this was followed by 60â¯min of recovery. The physiological responses (core temperature, skin temperature, heart rate, oxygen consumption) and perceptual parameters (thermal sensation, thermal comfort, rate of perceived exertion (RPE), and restriction to movement) were recorded throughout the tests. The results showed that the use of SRBA resulted in higher values of core temperature, mean skin temperature, heart rate, and oxygen consumption during exercise, and a significant difference (pâ¯<â¯0.05) between the SRBA and Control trials in terms of oxygen consumption was observed. The subjects wearing SRBA exhibited higher RPE and restriction to movement during exercise when compared with those in the Control condition, and a significant difference (pâ¯<â¯0.05) between the two trials in terms of restriction to movement was observed. Moreover, no significant differences (pâ¯>â¯0.05) in terms of thermal sensation and thermal comfort were observed between the SRBA and Control trials. It was concluded that the use of SRBA imposed high thermoregulatory and cardiovascular strain, reduced perceived exertion, and restricted movement during exercise in the hot and humid environment, whereas its effect on thermal sensation and thermal comfort was negligible when compared with those in the Control condition.
Palabras clave
Texto completo:
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Bases de datos:
MEDLINE
Asunto principal:
Consumo de Oxígeno
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Ropa de Protección
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Temperatura Cutánea
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Regulación de la Temperatura Corporal
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Frecuencia Cardíaca
Límite:
Adult
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Humans
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Male
Idioma:
En
Revista:
J Therm Biol
Año:
2019
Tipo del documento:
Article
País de afiliación:
China