Duk-Yong Kim

Spasticity has been defined as a motor disorder characterized by a velocity-dependent increase in tonic stretch reflex (muscle tone). Muscle tone consists of mechanical-elastic characteristics, reflex muscle contraction and other elements. The aims of this study were to determine whether to assess spasticity quantitatively, and to characterize biomechanical and electromyographic spasticity assessment parameters. These assessment parameters were described by investigating the correlation between

Objective: To investigate whether transcranial direct current stimulation (tDCS) could improve the motor function of hemiparetic upper limb in chronic stroke patients through randomized double-blinded, sham-controlled study. Method: Twenty chronic post-stroke hemiparetic patients participated in this study. They were randomly assigned into either tDCS or sham group. Anodal tDCS was delivered on lesional primary motor cortex for 20 minutes in tDCS group and 30 seconds in sham group. Just after st

Swallowing difficulty is common, especially in the elderly, neurologic disorders, head & neck cancer and etc. It may cause dehydration, weight loss, malnutrition, and aspiration pneumonia. The bedside examination may be important to assess the swallowing difficulty. However, the instrumental assessments such as videofluoroscopic swallowing study, fiberoptic endoscopic examination of swallowing, dynamic CT and manometry are more informative to identify the pathophysiology of dysphagia and are als

Objective: To investigate the clinical usefulness of newly developed 3-dimensional virtual reality (VR) program to assess the unilateral neglect. Method: Sixteen unilateral neglect patients and forty healthy subjects were included in this study. Forty healthy subjects were classified into two groups (control group I, II) based on the previous computer experience. This VR program was composed of two sessions, the first session was to search the midpoint of the monitor and the second session was t

Objective: To determine whether insufficient weight- bearing on the hemiparetic side has a correlation with the degree of stiff-knee gait in hemiplegic patients. Method: Fifty hemiplegic patients were included. In all patients, 3-dimensonal gait analysis and static and dynamic foot pressure measurements were taken. The degree of stiff-knee gait was evaluated using the peak knee flexion angle and the knee flexion slope at toe-off in hemiplegic limb. The degree of weight-bearing was evaluated usi

Objective: To test the feasibility of newly developed 3- dimensional virtual reality (VR) program for assessing the post-stroke cognitive dysfunction. Method: Thirty five post-stroke patients and twenty normal healthy subjects were recruited in this study, and post-stroke patients were classified into three groups according to the severity of cognitive dysfunction. We developed three dimensional virtual reality program to assess the cognitive function with virtual subway environment from taking

Virtual reality (VR) is defined as an approach to user-computer interface that involves real-time simulation of an environment, scenario, or activity that allows for user interaction via multiple sensory channels. In recent years, virtual reality has grown immensely with rapid advancement of VR technologies in the field of stroke rehabilitation. In this paper, current VR applications to the field of rehabilitation are reviewed. In the field of stroke rehabilitation, many clinical trials related

Background : Shoulder subluxation is a significant problem in poststroke patients, resulting in pain and loss of function. The aim of this study was to evaluate the effect of FES(functional electrical stimulation) on the shoulder subluxation in poststroke hemiplegic patients with case-control study. Methods : A prospective, randomized controlled study was carried out to determine the effect of functional electrical stimulation on shoulder subluxation after stroke. Forty patients were selected an