THE EFFECTS OF DAILY PHYSICAL ACTIVITY ON THE AGE-RELATED CAROTID ARTERIA STIFFENING IN MIDDLE-AGED AND ELDERLY PEOPLE
10.7600/jspfsm.55.S11
- Author:
JUN SUGAWARA
;
TAKESHI OTSUKU
;
TAKUMI TANABE
;
KOICHIRO HAYASHI
;
SEIJI MAEDA
;
SHINYA KUNO
;
RYUICHI AJISAKA
;
MITSUO MATSUDA
- Publication Type:Journal Article
- Keywords:
arterial stiffness;
aging;
exercise training;
Ultrasonography
- From:Japanese Journal of Physical Fitness and Sports Medicine
2006;55(Supplement):S11-S14
- CountryJapan
- Language:English
-
Abstract:
The engaging>30 minutes of physical activity (PA) at 4-6 METs has been recommended for the prevention of cardiovascular disease. We determined whether relatively low intensity (i. e., 3-5 METs) PA inhibits the age-related central arterial stiffening, a risk of cardiovascular disease. In the cross-sectional study, the association between carotid arterial properties (via ultrasound system) and daily PA (via electric accelerometer) were studied in 172 normotensive people (41-82 yrs). People engaging>30 min/day of PA corresponding to 3-5 METs had a significantly lower beta-stiffness index than sedentary peers after adjusting for covariates (i. e., age and PA time at more than 6 METs). In the interventional study, beta-stiffness index of nine normotensive postmenopausal women was significantly decreased after the 12-week aerobic training (cycling at 80% of ventiratory threshold, ≈4 METs, 30 min/day, 5 days/week). These results suggest that the increase in daily PA at 3-5 METs inhibits the age-related carotid arterial stiffening.
