An apparatus for human tympanic temperature measurements was assembled for this experiment.
　Adult men were subjects on this experiment. Temperatures measured were as follows; skin (Ts), rectal (Tre), tympanic membrane (Tty), and ambient temperatures (Ta).
　Without ski-cap, subjects sit on a chair as control experiments in cold but no wind conditions. With ski-cap, subjects sit on the chair with or without wind loading (4 m/s of wind velocity).
　At no wind conditions, Tty did not change remarkable with or without ski-cap. But, at wind loading, in spite of decreasing of skin temperatures (forehead, auricular), Tty did not showed any remarkable changes.
　These experiments suggest that ski-cap is useful for winter sports in maintaining the temperature of central nervous systems where skill of movements are controlled.

DESCENTE SPORTS SCIENCE Vol.3/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE