From RRCA Sports Medicine Committee and Damien Howell
The onset of winter needn't bring a seasonal halt to a runner's enthusiasm or routines. Outdoor exercise in the winter can be a pleasurable experience. The major risk posed by running in subfreezing air is frostbite and minor irritations to the respiratory tract. With some minor precautions these risks can be eliminated.
- Wear clothing in layers so that warm air can be trapped between the layers. Depending on the weather conditions, 2 to 4 layers on the trunk and 1 to 2 layers on the legs are appropriate. It is helpful if the outer layers have vents and zippers to allow excess heat to escape as you become warm. On windy days the outer layer should be of wind resistant material.
- Clothing made of material which carries the sweat away from the body is best, like wool, silk, or "space age" synthetics like polypropylene or polyester. Avoid cotton as it tends to hold the sweat.
- Hat and gloves are crucial as these regions of the body have a substantial role in the regulation of body temperature. Mittens tend to be warmer than gloves. On very cold days mittens worn over gloves are very effective. Stocking caps or ski masks are desirable. On very windy days goggles or eye glasses can provide additional protection.
- The outer layer should be light colored and have reflective material if you are running during darker hours. Reflective material works only if there is a light source. Blaze orange becomes poorly visible brown at night. Light colored material is visibie even without a strong light source. During snowy days dark colors provide visible contrast and attract solar energy.
- Pin to your clothes or shoes emergency identification, preferably of a waterproof material. Let someone know where you are going to run and when you expect to return. Do not run with headphones.
- Plan your run so that you run into the wind during the beginning portions and with the wind behind you in the latter portions. Otherwise, built-up sweat may cause you to become too cold when you turn into the wind. Be alert when running in snowy, icy conditions particularly near vehicular traffic.
- Avoid overdressing. Feel a bit underdressed and chilly as you start, knowing that later as you run in your layered environment the temperature will rise about 20 degrees.
THlS ARTlCLE IS A SERVlCE FROM THE ROAD RUNNERS CLUB OF AMERlCA
IT MY BE REPRlNTED WlTH CREDlT TO THE RRCA