RT Journal
A1 Hoffman MS
T1 JOgging and foot problems
JF JAMA
JO JAMA
YR 1969
FD March 24
VO 207
IS 12
SP 2283
OP 2284
DO 10.1001/jama.1969.03150250113023
UL http://dx.doi.org/10.1001/jama.1969.03150250113023
AB To the Editor:— 
    As a cardiologist, my interest in jogging relates to the cardiovascular effects of endurance exercise. Prompted by the letter entitled "Joggers' Heel" by Irwin M. Siegel, MD (206:2899, 1968), I would like to comment on the feet of the joggers. Heel pad discomfort, secondary to a jogging program, can occur, as Dr. Siegel points out.In regard to the comment that patients were advised to change from jogging to sprinting, which involves running on the ball of the foot, sprinting is not entirely innocuous and the syndrome, "sprinter's foot," is as severe as "jogger's heel."My wife and I, as co-chairmen of the Colorado Heart Association Preventive Cardiology-Exercise Committee, have organized a pilot jogging program.We have at least one well-documented case of "march" fracture occurring in a jogger who preferred to sprint, using the ball of his foot rather than a heel-toe gait. Other very