Thread by @nick_krontiris

Interestingly, the findings of this one suggest that individuals who exercise are more susceptible to decompression sickness.

- When the ambient pressure and, thus, the pressure in the body’s tissues is markedly and rapidly reduced, decompression sickness can occur.

- Decompression sickness may develop in conjunction with diving, flying and extravehicular space activities (“space walks”).

- Reducing the hydrostatic pressure in a tissue limits its ability to hold physically dissolved gas (mainly nitrogen), and a rapid pressure reduction can therefore lead to gas supersaturation and bubble formation in body tissues and venous blood (venous gas emboli).

- Individuals who are exposed on a regular basis to substantial changes in ambient pressure, e.g. divers and pilots, are commonly physically active.

- Consequently, the aim of this study was to investigate whether eccentric work increases the incidence of venous gas bubbles in connection with hypobaric decompression to 24,000 feet for 90 min.

- Muscle damage induced by eccentric arm work 24 h prior to ascent from sea level to 24,000 ft, increased the likelihood of formation of decompression bubbles during rest and arm-flex provocation, but interestingly, not during knee-bend provocation.

- An earlier onset of first venous gas emboli in the eccentric exercise exposures was also observed.

- Therefore, this study suggests that 15 min of eccentric upper body exercise 24 hours prior to decompression can increase the prevalence of venous gas emboli, and advance the generation of venous gas emboli during a continuous 90-min exposure at 24,000 ft.

Eccentric exercise 24 h prior to hypobaric decompression increases decompression strain (open access)

doi.org/10.1007/s00421…

#exercise #fitness #fit #FitFam #FitLife #FitnessAddict #Workout #TrainHard #GymLife #GymTime #muscle #strength #lift #GetStrong #cardio #hiit