Key result
Aerobic exercise training significantly reduced carotid-femoral pulse wave velocity compared to control after 8 weeks in postmenopausal females, regardless of whether training was performed twice or four times per week.
Why the study?
The study aimed to determine the effects of aerobic exercise training frequency on arterial stiffness in postmenopausal females.
Does aerobic exercise training frequency improve arterial stiffness in postmenopausal females?
RCT (n=45)
Randomly assigned
No
Does aerobic exercise training frequency improve arterial stiffness in postmenopausal females?
Absolute Event Rate: 766% vs 906%
p-value: p=<0.05
Aerobic exercise training, whether performed twice or four times weekly, effectively reduces aortic stiffness in postmenopausal women.
Both frequencies may reduce aortic stiffness in postmenopausal women; leaves open optimal frequency for broader arterial benefits.
[Purpose] This study aimed to determine the effects of aerobic exercise training frequency on arterial stiffness in postmenopausal females. [Participants and Methods] This study included 45 postmenopausal females randomly assigned to one of the following three groups: 1) low-frequency training group (aerobic exercise training twice per week); 2) high-frequency training group (aerobic exercise training four times per week); and 3) control group (no training). Each group was subjected to an 8-week intervention period. Both traditional and newer indexes were measured immediately before and after the 8-week intervention period. [Results] In the low-frequency training group, carotid-femoral pulse wave velocity and arterial velocity pulse index decreased post 8 weeks compared with those at baseline. In the high-frequency training group, carotid-femoral, brachial-ankle, and heart-brachial pulse wave velocities and arterial velocity pulse and arterial pressure-volume indexes decreased post 8 weeks compared to those at baseline. In the control group, no change in any indices post 8 weeks compared to those at baseline was observed. [Conclusion] Carotid-femoral pulse wave velocity was lower after aerobic training than before training in both the exercise groups. Thus, aerobic exercise training might have a beneficial effect on aortic stiffness, regardless of the training frequency in this population.
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Kobayashi et al. (2022) conducted an RCT in Healthy postmenopausal females (n=45). Aerobic exercise training vs. No training was evaluated on Carotid-femoral pulse wave velocity (cfPWV) (p=<0.05). Aerobic exercise training significantly reduced carotid-femoral pulse wave velocity compared to control after 8 weeks in postmenopausal females, regardless of whether training was performed twice or four times per week.
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