The effect, especially negative effect brought about by sport training on health was investigated.
　Subjects were 531 athletes and 168 non-athletic students of the university.
　Moirè-topography method was used for measurement of the erect posture. The photographed part was the full-length figure of their backs.
　The medical histories and physical complaints of everyday life of the subjects were investigated by the questionnaire.
　The results were as follows:
　1. The athletes were more humpbacked and they had more medical or symptomatical troubles and complaints than the non-athletes.
　2. The athletes who took excessively hard exercises and matches and unbalanced forms of exercises had more unbalanced or abnormal posture and much more physical troubles.
　3. These results show that in order not to warp the normal posture through sport training is necessary to have symmetrical movements and forms of exercises and not to bias to the only one sport.

DESCENTE SPORTS SCIENCE Vol.6/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE