A 20-week swimming regimen significantly reduced carotid to radial pulse wave velocity (Δ-1.2 m/s) and blood pressure in postmenopausal women with stage 2 hypertension (P<0.05).
RCT (n=100)
parallel
Yes
Does a swimming regimen improve arterial stiffness, blood pressure, muscle strength, and aerobic capacity in sedentary, postmenopausal women with stage 2 hypertension?
A 20-week swimming regimen significantly improved arterial stiffness, blood pressure, muscle strength, and aerobic capacity in older postmenopausal women with stage 2 hypertension.
Mean Difference: -1.2
p-value: p=<0.05
OBJECTIVE: Aging is associated with progressive decreases in arterial health as well as muscular strength and cardiorespiratory capacity. It is crucial to prevent or reduce the negative effects of aging on vasculature, muscular, and cardiorespiratory function by implementing appropriate lifestyle interventions, such as exercise training. We examined the effects of a swimming (SWM) regimen on arterial stiffness (pulse wave velocity PWV), blood pressure (BP), wave reflection (augmentation index AIx), muscle strength, and aerobic capacity in sedentary, postmenopausal women with stage 2 hypertension. METHODS: One hundred participants (∼74 years of age) were recruited from multiple general practice centers. Using a parallel experimental design, participants were randomly assigned to either SWM (n = 52) or nonexercising control group (n = 48) for 20 weeks. Participants in the SWM group trained 3 to 4 days/week. Participants' carotid to radial PWV, BP, AIx, muscular strength, and cardiorespiratory capacity were measured at baseline and after 20 weeks of their assigned intervention. RESULTS: There was a significant group × time interaction (P < 0.05) for carotid to radial PWV (Δ-1.2 m/s), AIx (Δ-4%), and systolic (Δ-9 mm Hg) and diastolic BP (Δ - 9 mm Hg), which significantly decreased (P < 0.05); and strength (Δ3 kg) and cardiorespiratory capacity (Δ4 mL/kg/min), which significantly increased (P < 0.05) following SWM compared to no changes in control. CONCLUSIONS: SWM led to reductions in arterial stiffness, wave reflection, and BP while increasing strength and aerobic capacity in postmenopausal women with stage 2 hypertension. SWM may be an effective intervention in the prevention and treatment of age-related vascular complications and declines in muscle strength and cardiorespiratory capacity.
Wong et al. (Mon,) conducted a rct in stage 2 hypertension (n=100). Swimming regimen vs. Nonexercising control was evaluated on Carotid to radial pulse wave velocity (PWV) (Δ -1.2 m/s, p=<0.05). A 20-week swimming regimen significantly reduced carotid to radial pulse wave velocity (Δ-1.2 m/s) and blood pressure in postmenopausal women with stage 2 hypertension (P<0.05).
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