2001 Fiscal Year Final Research Report Summary
Study on the regional differences in the adaptability to the cold environment in the modern people
| Project/Area Number |
12554040
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 展開研究 |
|---|
| Research Field |
人類学(含生理人類学)
|
|---|
| Research Institution | FUKUOKA JOGAKUIN UNIVERSITY |
|---|
Principal Investigator |
FUNATSU Michiko Fukuoka Jo Gakluin University, Faculty of Human Relations, Professor, 人間関係学部, 教授 (20261117)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
YASUKOUCHI Akira Kyushu Institute of Design, Faculty of Design, Professor, 芸術工学部, 教授 (20136568)
TANAKA Masatoshi Fukushima Medical University, School of Medicine, Professor, 医学部, 教授 (90112721)
MAEDA Takafumi Fukushima Medical University, School of Medicine, Research Associate, 医学部, 助手 (90301407)
KOBAYASHI Hiromitsu Ishikawa Prefectural Nursing University, Nursing Department, Associate Professor, 看護学部, 助教授 (20225535)
WATANUKI Shigeki Kyushu Institute of Design, Faculty of Design, Associate Professor, 芸術工学部, 助教授 (00158677)
|
|---|
| Project Period (FY) |
2000 – 2001
|
| Keywords | Thermoregulation / Cross Adaptation / Cold Environment / Residential Area / Adaptability / Physical Training |
|---|
| Research Abstract |
We investigated the effects of the physical fitness on the thermoregulation during the cold exposure and the residential differences in using habits of the heater and in the clothes weight.
1. The effects of the physical training on thermoregulation during the cold exposure
The ability of thermoregulation in the cold environments (10℃, 15℃) was improved by physical training which performed over 8 weeks. Although the rectal temperature showed the decrement of 0.2℃ before the physical training, it did not show such a decrement after physical training.
2. The effects of the physical training on autonomic nerves system during the cold exposure
The results of the heart rate variability showed that the autonomic nerves system was affected and activated by the cold stress. A significant decline in the baroreflex sensitivity by the cold stress resulted from the vasoconstriction of the skin as one of the thermoregulation responses. So, these results suggested that the thermoregulation was bound up with the cardiovascular responses and the regulation of the autonomic nerves system.
3. The relationship between the physical fitness and the peripheral vasomotor during whole body cold exposure
The correlation between the diameter of blood vessel (DBV) and skin temperature of the backhand was significant, so the measurement of DBV was useful in order to estimate individual's thermoregulation ability. Also there was seemed to trend of a relation between a variation of DBV and V_<O2>max. It was suggested an ability of vasoconstriction was improved by physical training.
4. The residential differences in using habits of the heater and in the clothes weight
The results of the using time of the heater and the clothes weight in winter were different by residence area. So, we thought that it was necessary the considerations of residence and the body conditions of the adaptation to the cold.
|
