Evaluation of the Skeleton Avatar Technique for Assessment of Mobility and Balance Among Older Adults

被引:2
作者
Backaberg, Sofia [1 ,2 ]
Hellstrom, Amanda [1 ]
Fagerstrom, Cecilia [1 ,3 ]
Halling, Anders [4 ]
Lincke, Alisa [5 ]
Lowe, Welf [5 ]
Ekstedt, Mirjam [1 ,6 ]
机构
[1] Linnaeus Univ, Fac Hlth & Life Sci, Dept Hlth & Caring Sci, Kalmar, Sweden
[2] Univ Calgary, Fac Kinesiol, Sports Technol Res Lab, Calgary, AB, Canada
[3] Reg Kalmar Cty, Res Sect, Kalmar, Sweden
[4] Lund Univ, Dept Clin Sci, Ctr Primary Hlth Care Res, Malmo, Sweden
[5] Linnaeus Univ, Fac Technol, Dept Comp Sci & Media Technol, Vaxjo, Sweden
[6] Karolinska Inst, Dept Learning Informat Management & Eth, Stockholm, Sweden
来源
FRONTIERS IN COMPUTER SCIENCE | 2020年 / 2卷
关键词
performance analysis; mobility; older adults; functional tests; balance; SIT-TO-STAND; PHYSICAL-ACTIVITY; DISEASE; FALLS; LIFE; GO; PREVENTION;
D O I
10.3389/fcomp.2020.601271
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Background: Mobility and balance is essential for older adults' well-being and independence and the ability to maintain physically active. Early identification of functional impairment may enable early risk-of-fall assessments and preventive measures. There is a need to find new solutions to assess functional ability in easy, efficient, and accurate ways, which can be clinically used frequently and repetitively. Therefore, we need to understand how functional tests and expert assessments (EAs) correlate with new techniques. Objective: To explore whether the skeleton avatar technique (SAT) can predict the results of functional tests (FTs) of mobility and balance: Timed Up and Go (TUG), the 30-s chair stand test (30sCST), the 4-stage balance test (4SBT), and EA scoring of movement quality. Methods: Fifty-four older adults (+65 years) were recruited through pensioners' associations. The test procedure contained three standardized FTs: TUG, 30sCST, and 4SBT. The test performances were recorded using a three-dimensional SAT camera. EA scoring was performed based on the video recordings of the 30sCST. Functional ability scores were aggregated from balance and mobility scores. Probability theory-based statistical analyses were used on the data to aggregate sets of individual variables into scores, with correlation analysis used to assess the dependency between variables and between scores. Machine learning techniques were used to assess the appropriateness of easily observable variables/scores as predictors of the other variables included. Results: The results indicate that SAT data of the fourth 4SBT stage could be used to predict the aggregated results of all stages of 4SBT (with 7.82% mean absolute error), the results of the 30sCST (11.0%), the TUG test (8.03%), and the EA of the sit-to-stand movement (8.79%). There is a moderate (significant) correlation between the 30sCST and the 4SBT (0.31, p = 0.03), but not between the EA and the 30sCST. Conclusion: SAT can predict the results of the 4SBT, the 30sCST (moderate accuracy), and the TUG test and might add important qualitative information to the assessment of movement performance in active older adults. SAT might in the future provide the means for a simple, easy, and accessible assessment of functional ability among older adults.
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页数:13
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