SciELO - Scientific Electronic Library Online

 
vol.68 número3Condiciones de transporte de medicamentos en misiones internacionales de las Fuerzas Armadas: Diseño de un estudio de estabilidad especifico para operacionesAnálisis descriptivo del personal militar español asistido por el Servicio de Psicología del ROLE 2 de Herat, Afganistán índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Sanidad Militar

versión impresa ISSN 1887-8571

Resumen

ALONSO RODRIGUEZ, C.; MEDINA FONT, J.  y  PUENTE ESPADA, B.. Clinical findings during high G forces exposure in human centrifuge. Sanid. Mil. [online]. 2012, vol.68, n.3, pp.157-162. ISSN 1887-8571.  https://dx.doi.org/10.4321/S1887-85712012000300005.

Introduction: The man exposure to high acceleration level produces the appearance of signs and symptoms, including the risk of loss of consciousness, that may compromise flight safety, and the training in human centrifuge is an useful method to improve the high acceleration tolerance. Material and methods: We assessed the appearance of symptoms and signs in a group of 81 fighter pilots who underwent advanced human centrifuge training, by exposing themselves to a 7 Gz for 15 seconds, with an on-set rate of 6 G/ second. We also studied the individual relaxed G tolerance level. Results: Visual symptoms were reported by 96,3% (greyout 88,9%, tunnel vision 72,9%, blackout 39,5%). We found that 90,1% presented petechials hemorrhages, 8,6% reported fatigue and 75'8 % disorientation or vertigo. Musculoskeletal pain was commonly reported affecting to different body parts: to forearms in 60,5%, to the thighs in 58%, to the arms in 40,7%, to the neck in 30,9%, to the abdomen in 23,5%, to the chest in 20,5% and to the elbows in 20,3% of the pilots. The average relaxed G-level tolerance was established in 4,79 ± 0,81 Gz, with a range between 3,40 Gz and 6,86 Gz, by using a centrifuge gradual on-set rate. Conclusions: Comparing the G level tolerance with the symptoms and signs, we found a significant greater prevalence of blackout among pilots with the biggest and the least tolerance than among those pilots with intermediate tolerance. We have not found any differences between the G level tolerance and the prevalence of petechiae, weariness, vertigo or musculoskeletal aches of different locations.

Palabras clave : Accelerations; Grey out; Blackout; Petechiae; Fatigue; Disorientation; Loss of consciousness; Human centrifuge.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons