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An Objective and Child-friendly Assessment of Arm Function by Using a 3-D Sensor

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Development of Simple, Objective Chair-Standing Assessment of Physical Function in Older Individuals Using a KinectTM

N Takeshima¹, T Kohama, M Kusunoki

¹Nobuo Takeshima, PhD, Department of Health and Sports Sciences, School of Health Sciences, Asahi University, 1851 Hozumi, Mizuho, 501-0296 Japan, Phone: +81-58-329-1352,

The Journal of Frailty & Aging

|October 23, 2019

Summary

This summary is machine-generated.

Frail older adults lean forward more during chair stands, indicated by a greater coronal plane angle (CPA). This quantitative measure using the Kinect sensor can help assess lower-body function in the elderly.

Keywords:

Activities of Daily Living (ADL)coronal plane angle frailty motion analysis

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Kinematic Analysis Using 3D Motion Capture of Drinking Task in People With and Without Upper-extremity Impairments

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Published on: March 28, 2018

Area of Science:

Gerontology
Biomechanical analysis
Assistive technology

Background:

Traditional measures of elderly health like the Functional Independence Measure (FIM) have limitations in assessing movement.
Quantitative analysis of human movement is complex and costly.
Infrared depth sensors offer a potential low-cost solution for objective clinical movement assessment.

Purpose of the Study:

To evaluate the Kinect sensor's utility for objective human movement analysis.
To assess the chair stand, a common Activities of Daily Living (ADL) task.

Main Methods:

Cross-sectional study involving 402 participants (healthy and frail elderly) in Japan.
Kinect v2 sensor recorded two chair stand trials per participant.
Coronal plane angle (CPA) was calculated to assess movement quality.

Main Results:

Frail individuals exhibited a significantly greater CPA (29.3°) compared to healthy individuals (19.5°).
CPA showed a significant correlation with age (r=0.148, p<0.01).
A CPA threshold of 23.1° demonstrated 79% sensitivity and 73% specificity for identifying frailty.

Conclusions:

Frail older adults demonstrate increased forward lean (higher CPA) during chair stands.
This compensatory posture may reduce lower-limb effort during standing.
CPA is a valuable indicator of diminished lower-body function in frail older adults.