Key result
High-velocity circuit resistance training reduces SBP by ~16 mmHg vs control in older adults.
Why the study?
No study had measured the effects of exercise on biological markers, health-related quality of life, and overall cardiovascular disease risk simultaneously in adults with cardiometabolic syndrome and CVD risk factors.
Does high-velocity circuit resistance training or treadmill training improve cardiometabolic risk, hemodynamics, and quality of life in adults with cardiometabolic syndrome?
RCT (n=30)
Single-blind (assessors blinded for blood analysis)
Simple randomization (computerized random numbers)
No
Does high-velocity circuit resistance training or treadmill training improve cardiometabolic risk, hemodynamics, and quality of life in adults with cardiometabolic syndrome?
Mean Difference: -15.69
p-value: p=0.01
High-velocity circuit resistance training for 12 weeks significantly improves cardiometabolic syndrome criteria, Framingham Risk Score, hemodynamics, and emotional well-being in adults with cardiometabolic syndrome.
Supports HVCRT over TM for adults with CMS; extends RCT evidence for high-velocity resistance training in cardiometabolic risk reduction.
The presence of cardiometabolic syndrome (CMS) confers an increased risk for cardiovascular disease (CVD) and mortality and is associated with reduced health-related quality of life (HRQoL). Although the effects of exercise on biomarkers, HRQoL, and future risk have been studied, no study has measured the effects on all three components. The present study compared the effects of steady-state, moderate-intensity treadmill training (TM) and high-velocity circuit resistance training (HVCRT) on biological markers, HRQoL, and overall CVD risk in adults with CMS and CVD risk factors. Thirty participants (22 females, 8 males) were randomly assigned to 1 of 3 groups: HVCRT, TM, or control. Participants in the exercise groups attended training 3 days/week for a total of 12 weeks. Of the 30 participants who began the study, 24 (19 females, 5 males) were included in the final analysis. Primary outcome measures included CMS criteria, hemodynamic measures, Framingham Risk Score (FRS), and HRQoL. All variables were measured pre- and post-intervention. CMS z score significantly decreased for HVCRT (p = 0.03), while there were no significant changes for TM or control. FRS significantly decreased for HVCRT compared with TM (p = 0.03) and control (p = 0.03). Significant decreases in systolic (p < 0.01) and diastolic blood pressures (p < 0.01) for HVCRT accompanied significant increases from baseline in stroke volume (p = 0.03) and end-diastolic volume (p < 0.01). Systemic vascular resistance significantly decreased (p = 0.05) for HVCRT compared with control. Emotional well-being significantly improved following HVCRT and TM compared with control (p = 0.04; p = 0.03). HVCRT represents a novel training modality that improved factors in each of the 3 components assessed.
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Roberson et al. (2018) conducted an RCT in Cardiometabolic syndrome and cardiovascular disease risk factors (n=30). High-velocity circuit resistance training (HVCRT) vs. Treadmill training (TM) or Control was evaluated on Change in systolic blood pressure (SBP) compared to control (MD -15.69, p=0.01). High-velocity circuit resistance training significantly decreased systolic blood pressure by 15.69 mmHg compared to control and improved cardiometabolic syndrome z-scores in older adults.
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