Sixty
percent of a shoe's shock absorption is lost after 250-500 miles of
use, so people who run up to 10 miles per week should consider
replacing their shoes every nine to 12 months.
Excessive
clothing can produce sweating, which causes the body to lose heat
rapidly and can increase the risk of hypothermia. Instead, dress in
layers. The inner layer should be material that takes perspiration away
from the skin (polypropylene, thermax); the middle layer (not necessary
for legs) should be for insulation and absorbing moisture (cotton); the
outer layer should protect against wind and moisture (nylon).
To
avoid frostbite in cold weather, do not have gaps of bare skin between
gloves and jackets, wear a hat, and cover the neck. Petroleum jelly can
be used on exposed areas, such as the nose.
Do not run at night, but if you run at dusk or dawn, wear reflective material. Don't wear a headset or jewelry while running.
Run
with a partner. If alone, carry identification, or write your name,
phone number, blood type, and medical information on the inside sole of
your running shoe.
Let
others know where you will be running, and stay in familiar areas, away
from traffic. Have a whistle or other noisemaker to use in an emergency
and carry change in case you need to make a phone call.
Whenever possible, run on a clear, smooth, resilient, even, and reasonably soft surface. Avoid running on hills, which increases stress on the ankle and foot. When running on curved surfaces, change directions in forward movement, so that you have even pressure on both feet during the run.
(For a free Play It Safe Sports brochure, call the Academy's public service telephone number (800) 824-BONES or send a stamped, self-addressed (business size) envelope to Play It Safe Sports, American Academy of Orthopaedic Surgeons, P.O. Box 1998, Des Plaines, IL 60017)
Source: U.S.A. Track and Field Association, Road Runners Club of America and American Orthopaedic Society for Sports Medicine.