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Effects of hypoxia on selected psychophysiological stress responses of military aircrew

Bustamante-Sánchez, Álvaro; Gil Cabrera, Jaime; Tornero Aguilera, José Francisco; Fernández-Lucas, Jesús; Ramos-Campo, Domingo Jesús; Clemente-Suárez, Vicente Javier (Hindawi Publishing CorporationUnited States, 2022-11-22)

There is a lack of information on the psychophysiological response of pilots under hypoxic conditions. The study of the physiological, psychological, cardiorespiratory, neurological, behavioural, sensory, and cognitive ...
Psychophysiological response of different aircrew in normobaric hypoxia training

Bustamante Sánchez, Álvaro; Delgado Teran, Miguel; Clemente Suárez, Vicente Javier (Ergonomics, 2018)

Hypoxia remains the most important hazard in high altitude flights, but there is still a need for deeper analysis of the effect of hypoxia exposition in the psychophysiological and cognitive functions. The aim of this study ...
Psychophysiological response of fighter aircraft pilots in normobaric hypoxia training

Bustamante Sánchez, Álvaro; Loarte Herradón, Víctor M.; Gallego Saiz, Jesús F.; Clemente Suárez, Vicente Javier (Archivos de Medicina del Deporte, 2018)

Hypoxia remains the most important hazard in high altitude flights as it is a rare condition presenting itself without consistent symptoms that prevent aircrew from warning in advance. An acute ventilatory response is the ...

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Effects of hypoxia on selected psychophysiological stress responses of military aircrew
...
Bustamante-Sánchez, Álvaro | 2022-11-22

There is a lack of information on the psychophysiological response of pilots under hypoxic conditions. The study of the physiological, psychological, cardiorespiratory, neurological, behavioural, sensory, and cognitive symptoms that may appear during training in hypobaric chambers is essential to optimize the training processes of aircrew members. Thus, the present study is aimed at analyzing the psychophysiological responses of aircrew members in an incremental hypoxia training protocol. Psychophysiological responses of 44 aircrew members (34 males and 10 females) in an incremental hypoxia training protocol (3 minutes at 0 meters, 8 minutes at 5,000 meters, and maximum time at 7500 meters) were measured. Results suggested that the incremental hypoxia training protocol did not affect cortical arousal and handgrip strength; however, it increased the sympathetic tone, perceived stress, perceived effort, and heart rate and decreased forced expiratory volume and blood oxygen saturation. Thus, we concluded that acute hypoxic hypobaric exposure leads to decreased parasympathetic tone, blood oxygen saturation, and maximal spirometry values, without negatively affecting handgrip strength and cortical arousal. This information will lead to find specific training systems that meet the real needs of aircrew.

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Psychophysiological response of different aircrew in normobaric hypoxia training
...
Bustamante Sánchez, Álvaro | 2018

Hypoxia remains the most important hazard in high altitude flights, but there is still a need for deeper analysis of the effect of hypoxia exposition in the psychophysiological and cognitive functions. The aim of this study was to study the effect of hypoxia training in cortical arousal, autonomic modulation, muscle strength and cognitive function. We analysed 23 male aircrew personnel of the Spanish Army and Air Force (10 Helicopter Pilots, 7 Transport Aircrew, 3 Transport Pilots and 3 F-18 Fighter Pilots) before, during and after a normobaric hypoxia exposition. Hypoxia produced an increase in perceived stress and effort, a higher Heart Rate and a decreased function of breath muscles. Working memory and pattern recognition were impaired after hypoxia exposition. Significant differences were found in cognitive tests performance among aircrew groups, suggesting differences on their previous training. These results can improve specific training for better preparation of pilots and aircrews for hypoxic threats.

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Psychophysiological response of fighter aircraft pilots in normobaric hypoxia training
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Bustamante Sánchez, Álvaro | 2018

Hypoxia remains the most important hazard in high altitude flights as it is a rare condition presenting itself without consistent symptoms that prevent aircrew from warning in advance. An acute ventilatory response is the mechanism that works to get back oxygen concentration homeostasis, causing hypocapnia and a respiratory alkalosis, which causes breathing muscles fatigue. Some authors have identified previous training on hypoxia contexts as essential to avoid accidents but it is still poor know the effect of hypoxia exposition in the psychophysiological and cognitive functions. We proposed the present study with the aims of to study the effect of hypoxia training in cortical arousal, autonomic modulation and muscle strength. We analysed 3 male fight pilots of the Spanish Army before and after normobaric hypoxia training. The following variables were reported: subjective perceived stress (SPS), rated perceived exertion (RPE), cortical arousal (Critical Flicker Fusion Threshold (CFFT)), isometric handgrip strength, blood oxygen saturation (SaO2 ), heart rate (HR) and spirometry values (forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1 ), peak expiratory flow (PEF)). The effect size (ES) was tested by Cohen’s D. No variable presented significant differences between tests. SPS, RPE, handgrip strength, heart rate and FVC increased after training. FEV1 , PEF, CFFT and SaO2 decreased during the training. These results agreed with previous research in military population. Normobaric hypoxia training produces a decreased tendency in cortical arousal and an increase in perceived effort, stress, and increased tendency in muscular strength. These results can help to find specific training for better prepare fight pilots for hypoxic threats.

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Listar por tema "Hypoxia"

Effects of hypoxia on selected psychophysiological stress responses of military aircrew ﻿

Psychophysiological response of different aircrew in normobaric hypoxia training ﻿

Psychophysiological response of fighter aircraft pilots in normobaric hypoxia training ﻿

Envíos recientes

Effects of hypoxia on selected psychophysiological stress responses of military aircrew

Psychophysiological response of different aircrew in normobaric hypoxia training

Psychophysiological response of fighter aircraft pilots in normobaric hypoxia training

Effects of hypoxia on selected psychophysiological stress responses of military aircrew

Psychophysiological response of different aircrew in normobaric hypoxia training

Psychophysiological response of fighter aircraft pilots in normobaric hypoxia training