title: The development and evaluation of a program for leg-strengthening exercises and balance assessment using Kinect.
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.
authors.affiliation: School of Biomedical Engineering, Konkuk University, Republic of Korea; BK21 Plus Research Institute of Biomedical Engineering, Konkuk University, Republic of Korea.
authors.forename: Jin-Seung
authors.initials: JS
authors.lastname: Choi
authors.affiliation: School of Biomedical Engineering, Konkuk University, Republic of Korea.
authors.forename: Dong-Won
authors.initials: DW
authors.lastname: Kang
authors.affiliation: School of Biomedical Engineering, Konkuk University, Republic of Korea.
authors.forename: Jeong-Woo
authors.initials: JW
authors.lastname: Seo
authors.affiliation: School of Biomedical Engineering, Konkuk University, Republic of Korea.
authors.forename: Dae-Hyeok
authors.initials: DH
authors.lastname: Kim
authors.affiliation: School of Biomedical Engineering, Konkuk University, Republic of Korea.
authors.forename: Seung-Tae
authors.initials: ST
authors.lastname: Yang
authors.affiliation: School of Biomedical Engineering, Konkuk University, Republic of Korea; BK21 Plus Research Institute of Biomedical Engineering, Konkuk University, Republic of Korea.
authors.forename: Gye-Rae
authors.initials: GR
authors.lastname: Tack
keywords: Balance assessment; Kinect; Leg-strengthening exercises