Upper extremity motor abilities and cognitive capability mediate the causal dependency between somatosensory capability and daily function in stroke individuals

Stroke individuals’ daily function has been demonstrated to be influenced by their somatosensory capability, cognitive capability, and upper extremity (UE) motor abilities. However, the structural relationships among these abilities on stroke individuals’ independence in daily function remain unclea...

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Bibliographic Details
Published in:Scientific reports 2022-01, Vol.12 (1), p.690-690, Article 690
Main Authors: Lin, Szu-Hung, Yang, Tong-Rong, Chuang, I-Ching, Chen, Chia-Ling, Wu, Ching-Yi
Format: Article
Language:English
Subjects:
692/699
692/699/375/534
Activities of Daily Living
Aged
Cognition - physiology
Cognitive ability
Female
Humanities and Social Sciences
Humans
Male
Middle Aged
Motor Activity - physiology
multidisciplinary
Muscle Strength
Rehabilitation
Science
Science (multidisciplinary)
Somatosensory Cortex - physiopathology
Stroke
Stroke - physiopathology
Stroke - psychology
Stroke Rehabilitation
Upper Extremity - physiopathology
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Summary:Stroke individuals’ daily function has been demonstrated to be influenced by their somatosensory capability, cognitive capability, and upper extremity (UE) motor abilities. However, the structural relationships among these abilities on stroke individuals’ independence in daily function remain unclear. We analyzed the pretest measures of 153 stroke individuals in outpatient rehabilitation settings by structural equation modeling to determine the structural relationship among somatosensory capability, UE muscle strength, UE motor function, and cognitive capability that influences independence in daily function. The standardized results indicated somatosensory capability negatively influenced UE muscle strength, but positively influenced UE muscle strength mediated by UE motor function. UE muscle strength, then, positively influenced individuals’ independence in daily function. On the other hand, somatosensory capability positively influenced cognitive capability, which marginally and positively affected the performance of independence in daily function. To the best of our knowledge, this is the first study to demonstrate the influence of somatosensory capability on the daily function is mediated mainly by motor functions and marginally by cognitive capability. This structural model may allow future clinical therapists to design more effective task-related training protocols to promote the independence in daily function for stroke individuals.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-04491-2