AI Article Synopsis
- - The six-minute walking test (6MWT) is used to assess exercise tolerance in elderly individuals, particularly for those with respiratory or cardiovascular issues, while also helping to identify frailty and sarcopenia.
- - This study involved 60 elderly participants wearing accelerometers on their ankles during the 6MWT, analyzing their walking performance through stride length and step cadence for better evaluation of their physical state.
- - Findings indicated that a significant percentage of frail individuals scored low on walking muscle strength (WMS) and demonstrated shorter walking distances, highlighting the potential of using WMS scores to assess sarcopenia and frailty effectively.
Article Abstract
The six-minute walking test (6MWT) is an essential test for evaluating exercise tolerance in many respiratory and cardiovascular diseases. Frailty and sarcopenia can cause rapid aging of the cardiovascular system in elderly people. Early detection and evaluation of frailty and sarcopenia are crucial for determining the treatment method. We aimed to develop a wearable measuring system for the 6MWT and propose a method for identifying frailty and quantifying walking muscle strength (WMS). In this study, 60 elderly participants were asked to wear accelerometers behind their left and right ankles during the 6MWT. The gait data were collected by a computer or smartphone. We proposed a method for analyzing walking performance using the stride length (SL) and step cadence (SC) instead of gait speed directly. Four regions (Range I-IV) were divided by cutoff values of SC = 2.0 [step/s] and SL = 0.6 [m/step] for a quick view of the frail state. There were 62.5% of frail individuals distributed in Range III and 72.4% of non-frail individuals in Range I. A concept of a WMS score was proposed for estimating WMS quantitatively. We found that 62.5% of frail individuals were scored as WMS1 and 41.4% of the non-frail elderly as WMS4. The average walking distances corresponding to WMS1-4 were 207 m, 370 m, 432 m, and 462 m, respectively. The WMS score may be a useful tool for quantitatively estimating sarcopenia or frailty due to reduced cardiopulmonary function.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11281094 | PMC |
| http://dx.doi.org/10.3390/s24144489 | DOI Listing |
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