| Project/Area Number |
11835024
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Institution | Kagoshima University |
|---|
Principal Investigator |
HORIKIRI Yutaka Faculty of Medicine, Kagoshima University Research Associate, 医学部, 助手 (10199549)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TANAKA Nobuyuki Faculty of Medicine, Kagoshima University Professor, 医学部, 教授 (40041454)
KAWAHIRA Kazumi Faculty of Medicine, Kagoshima University Associate Professor, 医学部, 助教授 (20117493)
TOGO Shin-ichi University Hospital, Faculty of Medicine, Kagoshima University Research Associate, 医学部・附属病院, 助手 (50264411)
|
|---|
| Project Period (FY) |
1999 – 2000
|
| Project Status |
Completed (Fiscal Year 2000)
|
| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2000: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1999: ¥3,200,000 (Direct Cost: ¥3,200,000)
|
|---|
| Keywords | bathing / senior / hypertention / tolerance / temperature / ECG / 体温 / 心電図 / 疲労 |
|---|
| Research Abstract |
< Introduction >
We have reported that hot bathing and sauna improves cardiovascular dynamics and coronary flow due to thermal vasodilation. In addition, increase in deep body temperature improvement the relaxation of collagen tissues of musclo-skeletal system. So, it is expected that hot water bathing (HWB) would improve exercise tolerance even in elder patients with coronary sclerosis and musclo-skeletal aging. In the present study treadmill exercise tolerance test (Modified Bruce Method) was performed with and without warm water bathing (41 ℃, 10 min) in 14 healthy aged men and women over 65.
< Results >
(1) After HWB at 41 ℃, 10 min increase in HR, BP and PRP during treadmill exercise was reduced.Duration of exercise and ST-depression and occurrence of arrhythmia during exercise were also significantly improved after WWB.Fatigability of the legs and Borg's index was also decreased after WWB.These results indicated the improvements of exercise tolerance probably due to the increase in cardiac functions and collagenous viscosity extensibility of the musclo-skeletal system.
(2) The changes of hemodynamics and brain and muscle blood flow were studied after the bathing inclusing octyl-phthalide (3ppm) and CO2 (100ppm) at 40 ℃ 10 minutes. Though there was no difference in deep body temperature compared to simple water bathing, the increase in heart rate, blood pressure and cardiac output was slightly greater in octyl-phtahalide and CO2 containing bathing. Significant increase in venous PO2 and ph and significant decrease in PCO2 were observed after simple water and octyl-phthalide and CO2 bathing. The changes however, was no significant difference between two kind of bathing.
|
