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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
Published on: April 19, 2019
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Multicomponent exercise training in cardiovascular complexity in prefrail older adults: a randomized blinded clinical
M S S Buto1, V Vassimon-Barroso1, E Fiogbé1
1Departamento de Fisioterapia, Universidade Federal de São Carlos, São Carlos, SP, Brasil.
Summary
Multicomponent training did not improve baroreflex sensitivity (BRS) or heart rate (HR) complexity in prefrail older adults. This 16-week intervention showed no significant cardiovascular benefits for this aging population.
Area of Science:
- Gerontology
- Cardiovascular Physiology
- Exercise Science
Background:
- Pre-frail older adults often exhibit impaired cardiovascular control.
- Baroreflex sensitivity (BRS) and heart rate (HR) complexity are key indicators of cardiovascular regulation.
- Understanding interventions to improve cardiovascular health in aging populations is crucial.
Purpose of the Study:
- To investigate the impact of a 16-week multicomponent training program on BRS and HR complexity in prefrail older adults.
- To assess changes in cardiovascular control during supine rest and orthostatic challenge.
- To determine if multicomponent exercise can mitigate cardiovascular impairments associated with pre-frailty.
Main Methods:
- Randomized controlled trial with 21 prefrail older adults assigned to a multicomponent training (MulTI) group or a control group (CG).
- MulTI group engaged in 16 weeks of exercise; CG maintained usual activities.
- Cardiovascular parameters including RR interval and blood pressure were recorded in supine and orthostatic positions to calculate BRS and HR complexity (sample entropy).
Main Results:
- Cardiovascular control was found to be impaired in prefrail older adults at baseline, particularly in the supine position.
- No significant interactions were observed between the intervention group and control group regarding cardiovascular parameters.
- The 16-week multicomponent exercise training program did not lead to significant improvements in HR complexity or BRS in either the supine or orthostatic conditions.
Conclusions:
- A 16-week multicomponent training program was insufficient to enhance baroreflex sensitivity or heart rate complexity in prefrail older adults.
- The findings suggest that current multicomponent exercise protocols may not effectively address the specific cardiovascular regulatory deficits seen in this population.
- Further research is needed to explore alternative or more intensive exercise strategies to improve cardiovascular function in prefrail older adults.
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