Charles Edward Roller, a large-scale printing professional and union ironworker, enjoys staying active in his free time. An avid runner and weightlifter, Charles Edward Roller also enjoys downhill skiing.

Skiers all too often hit the slopes without preparing their bodies for the exertion. This is particularly dangerous when one considers that skiing is an intense physical activity done in an extremely cold environment, a combination that poses a high risk of injury. To avoid strain on the muscles, skiers must first get their blood flowing with a brief walk or a jog. This warms up the body while encouraging the flow of oxygen.

Once the muscles are warm, a skier can perform a few dynamic stretches. Distinct from static stretches, which require holding a particular position for 30 seconds or more, dynamic stretches extend the muscles in gentle movements that increase range of motion and prepare them for the specific demands of the sport. For skiers, these exercises include standing leg swings, lunges with gentle trunk rotation, and arm swings. The skier can then begin the day's session with some easy runs to activate the body’s muscle memory before hitting more difficult trails.