Bumchul Yoon

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STUDY DESIGN An experimental design comparing kinematic changes in the lumbar spine axis in subjects with and without low back pain (LBP) while standing on one leg with and without visual feedback. OBJECTIVE The purpose of this study was to evaluate the lumbar stability index, which includes relative holding time (RHT) and relative standstill time (RST),(More)
OBJECTIVE To assess the effects of an unsupervised virtual reality (VR)-based exercise program on hip muscle strength and balance control in older adults. DESIGN Controlled cohort repeated-measures experimental design, a pilot study. SETTING University research laboratory. PARTICIPANTS Ambulatory older adults (N=32) from a local community. (More)
BACKGROUND Although cross-sectional biomechanical studies have reported that wearing high-heeled shoes can change the musculoskeletal system of the lower extremities, the long-term effects of wearing such shoes on the ankle remain unknown. The aim of this study was to reveal changes in ankle range of motion and muscle strength in habitual wearers of(More)
PURPOSE The purpose of this study was to identify the effects of water-based exercises on the physical functions and quality of life (QOL) in community-dwelling elderly people with history of falling. MATERIALS AND METHODS Participants were randomly assigned to the water-based exercise group (n=34) or land-based exercise groups (n=32). To identify the(More)
BACKGROUND Virtual reality (VR)-based rehabilitation is gaining attention as a way to promote early mobilization in patients with acute stroke. However, given the motor weakness and cognitive impairment associated with acute stroke, implementation strategies for overcoming patient-perceived difficulty need to be developed to enhance their motivation for(More)
OBJECTIVES Individualized feedback-based virtual reality (IFVR) exercise is gaining attention as a cost-effective self-management strategy, however little is known about whether older adults themselves perceive IFVR exercise effective in improving their health. Therefore, we studied the effect of IFVR exercise on health-related quality of life (HRQoL) in(More)
This article explored the perspectives of 25 patients regarding virtual reality (VR)-based rehabilitation following knee surgery and identified the important factors that allowed patients to immerse themselves in rehabilitation. Qualitative analysis of data collected via open-ended questionnaire and quantitative analysis of data from physical assessments(More)
Effective stabilization is important to increase sports performance. Imbalanced spinal muscle responses between the left and right sides increase the risk of spinal buckling and microtrauma at the intervertebral joints. The purpose of this study was to confirm whether intensive unilateral neuromuscular training (IUNT) focusing on the non-dominant side of(More)
BACKGROUND Studies have shown late post-operative physical disability and residual pain in patients following lumbar disc surgery despite growing evidence of its beneficial effects. Therefore, rehabilitation is required to minimise the late post-operative complications. OBJECTIVE To assess the feasibility of manipulative rehabilitation to improve late(More)
BACKGROUND AND OBJECTIVES It is possible to increase multi-directional trunk stability using co-activation. However, it is unclear whether there is a preference for left or right trunk rotation after intensive unilateral stability training. The aim of this study was to examine the directional preference in trunk rotational stability after unilateral core(More)