第10次日本南極地域観測隊越冬隊員の医学的考察 : I.極地における手指の循環状況について(日本南極地域観測隊の報告)

• Main Authors: 吉川 暢一, Masamoto KIKKAWA
• Format: Report
• Language: Japanese
• Published: 国立米子病院整形外科 1972
• Subjects: Antarctic; Syowa Station; Thumb; The Thumb; Antarc*; Antarctica
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=7657; http://id.nii.ac.jp/1291/00007657/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=7657&item_no=1&attribute_id=18&file_no=1

As a member of the 10th Japanese Antarctic Research Expedition, the author spent a year (1969-1970) at Syowa Station in Antarctica. Circulatory condition and function of the fingers of the wintering members were studied. (1) Twenty-nine persons were examined and the average of their ages was 30.9 years old. (2) Outdoor temperature at Syowa Station was 0°～-5℃ in summer, -23℃ in winter. (3) The average finger-tip temperature of the members was 31.3℃ in summer, 29.8℃ in winter, and 30.4℃ during the year, and it changed in parallel with the outdoor temperature. It was found that the finger-tip temperature in Antarctica was about 4℃ lower than that in Japan. (4) Plethysmograph of the finger-tips of the members shows a low monophasic wave (3.3 mm high), and a flattened wave when the finger-tip temperature was below 25℃. Generally a high dicrotic wave (12.9 mm high) was found in Japan. (5) Pinch and adduction power of the thumb were not affected by low temperature of the finger-tip. (6) It was concluded that in Antarctica circulatory condition in the finger-tip was largely affected, but function of the finger was not much affected.