The development and evaluation of a program for leg-strengthening exercises and balance assessment using Kinect

Jin-Seung Choi, Dong-Won Kang, Jeong-Woo Seo, Dae-Hyeok Kim, Seung-Tae Yang, Gye-Rae Tack, Jin-Seung Choi, Dong-Won Kang, Jeong-Woo Seo, Dae-Hyeok Kim, Seung-Tae Yang, Gye-Rae Tack

Abstract

[Purpose] In this study, a program was developed for leg-strengthening exercises and balance assessment using Microsoft Kinect. [Subjects and Methods] The program consists of three leg-strengthening exercises (knee flexion, hip flexion, and hip extension) and the one-leg standing test (OLST). The program recognizes the correct exercise posture by comparison with the range of motion of the hip and knee joints and provides a number of correct action examples to improve training. The program measures the duration of the OLST and presents this as the balance-age. The accuracy of the program was analyzed using the data of five male adults. [Results] In terms of the motion recognition accuracy, the sensitivity and specificity were 95.3% and 100%, respectively. For the balance assessment, the time measured using the existing method with a stopwatch had an absolute error of 0.37 sec. [Conclusion] The developed program can be used to enable users to conduct leg-strengthening exercises and balance assessments at home.

Keywords: Balance assessment; Kinect; Leg-strengthening exercises.

Figures

Fig. 1.
Fig. 1.
Block diagram of the balance exercise and assessment program

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Source: PubMed

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