자동화된 자세 분석 및 가상 재구축 장비를 이용한 이중 과제 능력 평가

Abstract

Objective: Assessing motor-cognitive dual-task performance could sensitively detect changes in balance, an essential indicator of physical function in geriatric population. Posture Analysis and Virtual Reconstruction (PAViR) is a new technique to trace body posture and motion in real-time. We investigated the clinical usability of PAViR device to measure motor-cognitive dual-task performance. Methods: We recruited two age groups of healthy individuals without subjective cognitive and motor impairment: young (18 < Age < 40, N = 21) and old (Age ≥ 65, N = 28). The dual-task performance was evaluated by subtraction while single-leg standing using a PAViR device. All patients underwent comprehensive neuropsychological tests, Seoul Neuropsychological Screening Battery-Core (SNSB-C). We conducted group comparison analysis and correlation analysis between the scores on items of SNSB-C and task performance in each group. Results: Old group showed significantly lower performance (p < 0.05) in all tasks except amplitude during single task and dual task cost of amplitude, and significantly lower scores on most items of SNSB-C. In young age group, dual-task cost was significantly negatively correlated with the scores of controlled oral word association test and color word stroop test. In old age group, there was significant correlation between the score of color-word stroop test and dual-task performance as well as single task performance (p < 0.05). Conclusion: Our study showed that the degree of motor-cognitive dual-task performance could be measured by PAViR device, and it was also correlated with the different aspects of cognitive assessments depending on the age group. Further study is needed using various tasks in larger population.