Study on the Exercise Tolerance in Healthy Japanese Adults and Its Application to Exercise Prescriptions (II)*
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.4 Vol.4】
Our previous report was on the study of maximal heart rate and endurance time in relation to aging and proposed the regression equations for maximal heart rate and endurance time on maximal exercise test in healthy Japanese adults.
This time, 242 apparently healthy Japanese adults underwent symp-tome-limited maximal exercise test by means of bicycle ergometer. Heart rate, blood pressure and electrocardiogram were observed continuously during exercise and recovery. And blood pressure, rate pressure product (RPP), electrocardiographic changes and endurance time were investigated in relation to aging.
Results are as follows:
1. There is no correlation between maximal systolic blood pressure and aging.
2. Unlike maximal heart rate response, basic systolic blood pressure at rest may not be neglectable factor to investigate maximal systolic blood pressure.
3. ⊿SBP/watt increases as aging.
4. There is no correlation between RPP and aging. Basic systolic blood pressure at rest is not neglectable factor to investigate maximal RPP that is much influenced by systolic blood pressure.
5. ⊿RPP/watt increases as aging.
6. Prevalences of STi depression on maximal exercise test are 8.1% in male, 13.0% in female and 9.5% in total and increase as aging. The prevalence in female is greater than that in male.
7. Prevalences of STj depression are 14.5% in male, 23.8% in female and 16.7% in total and increase as aging. Prevalence in female is greater than in male.
8. Endurance time decreases as severity of ST depression of ECG. This results is suggestive that exercise induced ST depression is indicative of some decrease of cardiac function even in the apparently healthy adults.
In Japan, there are very few reports giving a full detail of maximal exercise response in healthy middle-aged Japanese adults who are closely selected as healthy subjects. Therefore the results of this study have a great value of the practical application for the prescription in Japanese adults and also have a great deal of social significance now in Japan.
DESCENTE SPORTS SCIENCE Vol.4/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
This time, 242 apparently healthy Japanese adults underwent symp-tome-limited maximal exercise test by means of bicycle ergometer. Heart rate, blood pressure and electrocardiogram were observed continuously during exercise and recovery. And blood pressure, rate pressure product (RPP), electrocardiographic changes and endurance time were investigated in relation to aging.
Results are as follows:
1. There is no correlation between maximal systolic blood pressure and aging.
2. Unlike maximal heart rate response, basic systolic blood pressure at rest may not be neglectable factor to investigate maximal systolic blood pressure.
3. ⊿SBP/watt increases as aging.
4. There is no correlation between RPP and aging. Basic systolic blood pressure at rest is not neglectable factor to investigate maximal RPP that is much influenced by systolic blood pressure.
5. ⊿RPP/watt increases as aging.
6. Prevalences of STi depression on maximal exercise test are 8.1% in male, 13.0% in female and 9.5% in total and increase as aging. The prevalence in female is greater than that in male.
7. Prevalences of STj depression are 14.5% in male, 23.8% in female and 16.7% in total and increase as aging. Prevalence in female is greater than in male.
8. Endurance time decreases as severity of ST depression of ECG. This results is suggestive that exercise induced ST depression is indicative of some decrease of cardiac function even in the apparently healthy adults.
In Japan, there are very few reports giving a full detail of maximal exercise response in healthy middle-aged Japanese adults who are closely selected as healthy subjects. Therefore the results of this study have a great value of the practical application for the prescription in Japanese adults and also have a great deal of social significance now in Japan.
DESCENTE SPORTS SCIENCE Vol.4/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Hisao Iwane*1, JOji Fujinami*1, Kazutoshi Minamidani*2, Masayuki Watanabe*3 |
|---|---|
| University or institution | *1 Tokyo Medical College, *2 Juntendo University, *3 Tokyo Gakugei University |
Keywords
Exercise Tolerance, Exercise Prescriptions, endurance time on maximal exercise test, healthy Japanese adults, symp-tome-limited maximal exercise test