Key result
Metabolic syndrome was associated with a significantly shorter 6-minute walk distance (63.44 m vs 95.91 m, p=0.0013) and impaired heart rate variability compared to healthy controls.
Why the study?
Little was known about the potential of the 6-minute walk test as a prognostic marker in the metabolic syndrome population.
Does mobile health-enhanced HRV monitoring during the 6-minute walk test identify reduced functional capacity in patients with metabolic syndrome compared to healthy controls?
Cross-Sectional (n=27)
No
Does mobile health-enhanced HRV monitoring during the 6-minute walk test identify reduced functional capacity in patients with metabolic syndrome compared to healthy controls?
Absolute Event Rate: 63.44% vs 95.91%
p-value: p=0.0013
Wearable-based HRV monitoring during the 6-minute walk test can effectively detect reduced cardiovascular functional capacity and autonomic imbalance in patients with metabolic syndrome.
The 6-minute walk test (6MWT) is a well-known instrument for assessing cardiovascular patients’ functional capacity; yet, little is known about its potential as a prognostic marker in the metabolic syndrome (MetS) population. Apart from its main application in determining walking distance, the 6MWT provides insightful information about functional capacity, response to therapy, and diagnostic potential for a wide range of disorders. In this work, we integrated wearable device-collected ECG data for heart-rate variability (HRV) analysis to improve our evaluation of cardiac function in the MetS patient group. Our main objective was to assess, with a wrist-worn device, the respiratory and cardiovascular system exercise tolerance using the 6MWT. We designed an Android-based mobile application for automated signal monitoring and distance measurement to simplify data collecting and analysis. 27 individuals in all, ranging in age from 24 to 79, made up our cohort. Three key indicators were included into HRV analysis: Poincaré metrics, frequency domain, and time domain. We found strong correlations between these 2/3/6 HRV parameters and 6MWT results. The aim of this study was to use HRV analysis to evaluate the functional capacities of MetS patients in comparison to non-MetS people.
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Akbulut et al. (2024) conducted a cross-sectional in Metabolic syndrome (n=27). Metabolic syndrome vs. Healthy controls (Non-MetS) was evaluated on 6-minute walk distance (6MWD) (p=0.0013). Metabolic syndrome was associated with a significantly shorter 6-minute walk distance (63.44 m vs 95.91 m, p=0.0013) and impaired heart rate variability compared to healthy controls.
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