boot binding. Avalanches are a clear danger when on snowy mountain slopes. It is best to learn the different kinds of avalanches, how to prevent causing one and how to react when one is going to happen. Also when going out onto the snow, all who practice an activity with increased chances of injury should have a basic First Aid knowledge and know how to deal with injuries that may occur. Snowboarding boots should be well-fitted, with toes snug in the end of the boot when standing upright and slightly away from the end when in the snowboarding position. Padding or "armor" is recommended on other body parts such as hips, knees, spine, and shoulders. To further help avoid injury to body parts, especially knees, it is recommended to use the right technique. To acquire the right technique, one should be taught by a qualified instructor. Also, when snowboarding alone, precaution should be taken to avoid tree wells, a particularly dangerous area of loose snow that may form at the base of trees. Some care is also required when waxing a board as fluorocarbon waxes emit toxic fumes when overheated. Waxing is best performed in a ventilated area with care being taken to use the wax at the correct temperature – the wax should be melted but not smoking or smoldering. In a study conducted to examine the types of snowboarding injuries and changes in injury patterns over time, data was collected on injured snowboarders and skiers in a base-lodge clinic of a ski resort in Vermont over 18 seasons (1988–2006) and included extensive information about injury patterns, demographics, and experience. In conclusion of the study, the highest rate of injury was among young, inexperienced, female snowboarders. Injury rates in snowboarders have fluctuated over time but still remain higher than skiers. No evidence was found that those who spend more time in terrain parks are over represented in the injury population. Media Films Snowboarding films have become a main part of progression in the sport. Each season, many films are released, usually in autumn. These are made by many snowboard-specific video production companies as well as manufacturing companies that use these films as a form of advertisement. Snowboarding videos usually contain video footage of professional riders sponsored by companies. An example of commercial use of snowboarding films would be The White Album, a film by snowboarding legend and filmmaker Dave