Digital vascular hunting reactions of hand in cold air and in ice water.

概要

論文の詳細を見る
In an air-conditioned room at 20-22°C, two series of experiments were performed on 20 male students at Kobe University in the winter. In the first seriers of experiments, they dipped their left middle fingers up to the base in ice water for 30 minutes. In the second series, they put their left hand up to the wrist in a cold chamber at -10°C with wind velocity of 20 cm/sec for 30 minutes. The skin temperature of the finger tip was measured continuously with a copperconstantan thermocouple. Measurements were made on the basis of following items; the skin temperature at the first rise (TFR), time for the first skin temperature rise (TTR), mean skin temperature during the cold exposure (MST), the lowest skin temperature during the cold exposure (LT) and recovery time (RT) . In both series of experiments, the skin temperature before cold exposure (TB) was correlated well with the above items. When TTR and RT were shorter, TFR, MST and LT became higher with rise in TB. Similar results were obtained in cold air and in ice water. However, individual data for each item varied more from each other in cold air than in ice water, and they felt cold pains less frequently in cold air. Therefore, we can study in more detail hunting reactions in cold air than in ice water.
日本生気象学会の論文