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268 results on '"Cho, Hwi-young"'

9. Effects of light touch on balance in patients with stroke

Author

In Tae-sung, Jung Jin-Hwa, Jang Sang-hun, Kim Kyung-hun, Jung Kyoung-sim, and Cho Hwi-young

Subjects
balance, light touch, stroke, Medicine
Abstract

Light touch is the combination of cutaneous and kinesthetic inputs. The literature suggests that light touch compensates for a reduced amount of center of pressure information in older peoples, blind subjects and patients with neurological disorder. This study investigated the effects of light touch applied to an external bar, on the postural sway in individuals with hemiparetic stroke. We used a cross sectional study, fifteen individuals with stroke and 15 healthy age-matched adults stood as still as possible on a force plate. Experimental trials (duration, 30 s) included two visual conditions (open eyes and closed eyes), two somatosensory conditions (no touch and light touch) and two support surface conditions (firm and foam surfaces). The area of center of pressure (COP) and the mean velocity of COP in the medio-lateral and anterior-posterior directions were assessed. For both groups, COP velocity and area decreased with light touch regardless of the visual or surface conditions. The effects of light touch were similar in both groups. In addition, results show that the effectiveness of light touch in reducing postural sway was greater on a foam surface than on a firm surface. Our findings indicate that light touch could be beneficial in postural control for individuals with hemi-paretic stroke

Published
2019
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10. The effect of types of sensory feedback on the acquisition and retention of squat performance: A randomized, double‐blind, controlled trial.

Author

Shin, Ho‐Jin, Kim, Sung‐Hyeon, and Cho, Hwi‐Young

Subjects
SKELETAL muscle physiology, SENSES, MEMORY, ABILITY, TRAINING, RANDOMIZED controlled trials, LEARNING, BODY movement, RESEARCH funding, VISUAL perception, BLIND experiment, DESCRIPTIVE statistics, STATISTICAL sampling, ELECTROMYOGRAPHY, MOTOR ability, KINEMATICS
Abstract

Various sensory feedback methods are considered important for motor learning, but the effect of each sensory feedback method on effective squat learning still needs to be clarified. This study aimed to investigate the effect of sensory feedback types on the acquisition and retention of a squat. A double‐blinded, randomized controlled trial was carried out. Thirty‐healthy people were recruited and randomly assigned to the visual feedback group (VFG = 10), tactile feedback group (TFG = 10), and control group (CG = 10). VFG received visual feedback through video data of the participant performing squats, and TFG received tactile feedback through manual contact with a physical therapist. Both groups received feedback on the movements that needed correction after each set was completed. CG maintained rest without receiving any feedback. The retro‐reflexive marker, force plate, and electromyography were used to measure body angle, foot center of pressure (COP), and muscle activity. All assessments were measured to confirm a squat acquisition. VFG and TFG showed significant differences in neutral knee position (NKP), trunk forward lean (TFL), anterior knee displacement (AKD), and anteroposterior (AP) foot COP (p < 0.050). In addition, the acquisition was retained until 3 days later for NKP and a week later for TFL, AKD, and AP foot COP in VFG (p < 0.050), while the acquisition was not retained in TFG (p > 0.050). There was no statistically significant change in CG (p > 0.050). This study demonstrated that visual feedback positively affects the acquisition and retention of squats. Therefore, we recommend the use of visual feedback for squat acquisition and retention in exercise novices. [ABSTRACT FROM AUTHOR]

Published
2024
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11. The Immediate Effects of Muscle Energy Technique in Chronic Low Back Pain Patients with Functional Leg Length Discrepancy: A Randomized and Placebo-Controlled Trial.

Author

Yoon, Jung-Dae, Jung, Jin-Hwa, Cho, Hwi-Young, and Shin, Ho-Jin

Subjects
CHRONIC pain treatment, PELVIC radiography, LUMBAR pain, X-rays, STATISTICAL significance, MUSCLE contraction, PAIN measurement, ANALYSIS of variance, TIME, EFFECT sizes (Statistics), VISUAL analog scale, HEALTH outcome assessment, LEG length inequality, RANDOMIZED controlled trials, PLACEBOS, PRE-tests & post-tests, COMPARATIVE studies, T-test (Statistics), MANIPULATION therapy, REPEATED measures design, DESCRIPTIVE statistics, RESEARCH funding, FATIGUE (Physiology), STATISTICAL sampling, DATA analysis software, PELVIS
Abstract

This study was conducted to determine the effect of muscle energy technique (MET) on pelvic alignment, leg length, pain, and fatigue in chronic low back pain (CLBP) patients with leg length discrepancy (LLD). Forty-two CLBP patients with LLD volunteered to participate and were randomly assigned to the MET group (n = 21) and placebo group (n = 21). The intervention group performed three METs with 5 s of isometric contraction and 30 s of rest once, and the placebo group performed three times the placebo-MET, maintaining the same posture as the MET group without muscle isometric contraction. X-ray equipment, tape measure, and visual analog scale were used to evaluate pelvic alignment, leg length, pain, and fatigue before and after each intervention. In comparison pre- and postintervention, only the MET group showed significant changes in pelvic alignment, leg length, pain, and fatigue (p < 0.05). In comparison between groups, there were significant differences in all variables (pelvic alignment, leg length, pain, fatigue) (p < 0.05). The results of this study confirmed the therapeutic effect of MET for improving pelvic alignment, functional LLD, pain, and fatigue in CLBP patients with functional LLD. Future research is needed to evaluate the long-term effect on more chronic low back pain patients. [ABSTRACT FROM AUTHOR]

Published
2024
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33. Therapeutic Effect of BDNF-Overexpressing Human Neural Stem Cells (F3.BDNF) in a Contusion Model of Spinal Cord Injury in Rats

Author

Chang, Da-Jeong, primary, Cho, Hwi-Young, additional, Hwang, Seyoung, additional, Lee, Nayeon, additional, Choi, Chunggab, additional, Lee, Hyunseung, additional, Hong, Kwan Soo, additional, Oh, Seung-Hun, additional, Kim, Hyun Sook, additional, Shin, Dong Ah, additional, Yoon, Young Wook, additional, and Song, Jihwan, additional

Published
2021
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