Nutrition and Hydration for High-Altitude Alpinism: A Narrative Review.

This report aims to summarise the scientific knowledge around hydration, nutrition, and metabolism at high altitudes and to transfer it into the practical context of extreme altitude alpinism, which, as far as we know, has never been considered before in the literature. Maintaining energy balance during alpine expeditions is difficult for several reasons and requires a deep understanding of human physiology and the biological basis for altitude acclimation. However, in these harsh conditions it is difficult to reconcile our current scientific knowledge in sports nutrition or even for mountaineering to high-altitude alpinism: extreme hypoxia, cold, and the logistical difficulties intrinsic to these kinds of expeditions are not considered in the current literature.

Topical Nifedipine Administration for Secondary Prevention in Frostbitten Patients.

Frostbite is a cold-related injury with a growing incidence among healthy subjects. Sequelae after frostbite are frequent and vary among individuals. Here, we studied the thermal response in the digits of hands and feet of five subjects who had recovered from previous frostbite, except for their lasting sequelae.

Amputation Risk Factors in Severely Frostbitten Patients.

In recent years, the incidence of frostbite has increased among healthy young adults who practice winter sports (skiing, mountaineering, ice climbing and technical climbing/alpinism) at both the professional and amateur levels. Moreover, given that the population most frequently affected is healthy and active, frostbite supposes a substantial interruption of their normal activity and in most cases is associated with long-term sequelae. It particularly has a higher impact when the affected person's daily activities require exposure to cold environments, as either sports practices or work activities in which low temperatures are a constant (ski patrols, mountain guides, avalanche forecasters, workers in the cold chain, etc.

Differences in Cardiorespiratory Responses in Winter Mountaineering According to the Pathway Snow Conditions.

Locomotion during ascent requires higher energy consumption than on flat terrain. Locomotion efficiency decreases in snowy terrain, with changes in the biomechanical pattern of walking. This study aims to evaluate differences in both cardiorespiratory responses and energy expenditure between locomotion over snowy terrain with an established footstep pathway (FP) and fresh snow (FS) that has not previously been compacted.

Drug Use and Misuse in the Mountains: A UIAA MedCom Consensus Guide for Medical Professionals.

Unlabelled: Donegani, Enrico, Peter Paal, Thomas Küpper, Urs Hefti, Buddha Basnyat, Anna Carceller, Pierre Bouzat, Rianne van der Spek, and David Hillebrandt. Drug use and misuse in the mountains: a UIAA MedCom consensus guide for medical professionals. High Alt Med Biol.