Skiing helmets

The role of helmets in skiing and snowboarding.

Skiing Helmets An Evaluation of the Potential to Reduce Head Injury January 1999

Safety helmets

helmet of the water flea (Daphnia spp.) does not make it invisible, but it does confer some protection against predators by making the fleas harder to catch. Water fleas do not necessarily begin life with a helmet but can form one as a morphological defence in response to chemicals released by their predators. The images above show three pairs of water fleas from different species; the non-helm...

Metabolic Demand of Paralympic Alpine Skiing in Sit-Skiing Athletes.

Paralympic Alpine Skiing comprises three main categories, namely Standing, Visually Impaired and Sitting, to one of which athletes get classified depending on their individual impairment of ability. An existing sport profile of alpine skiing for able-bodied athletes facilitates the physical preparation process of Standing and Visually Impaired athletes. However, very little is known about perfo...

Surgical Helmets and SARS Infection

Performance testing of two brands of surgical helmets indicated that their efficiency at in vivo filtration of sub-micrometer-sized particles is inadequate for their use as respirators. These helmets are not marketed for respiratory protection and should not be used alone for protection against severe acute respiratory syndrome when performing aerosol-generating procedures.