Comparison of the VMO/VL EMG Activity Ratio According to Resistance Condition in Partial Lunge Exercise

Purpose@#The purpose of this study was to investigate the effects of the resistance conditions on the electromyography (EMG) activity ratio of vastus medialis oblique (VMO) and vastus lateralis (VL) muscle during partial lunge exercise in healthy subjects in order to suggest the basic data of exercise intervention for such as patients with patellofemoral pain syndrome (PFPS). @*Methods@#The participants of this study were healthy twenty two people with no knee pain, limitation of motion and past history of operation at lower extremity. The participants performed three types of lunge 1) no resistance, 2) anterolateral 45° resistance and 3) lateral 90° respectively. The EMG activity of the VMO and VL were recorded by surface EMG and the measured data normalized by the %MVIC value was analyzed by repeated measured ANOVA. @*Results@#The results showed that the VMO/VL EMG activity ratio during lunge with anterolateral 45° resistance was significantly higher than with no resistance and lateral 90° resistance (p0.05). @*Conclusion@#This study suggests that partial lunge exercise with anterolateral 45° resistance can increase the VMO/VL muscle activity in healthy subjects. This result could be used as basic data to develop therapeutic exerc

Comparison of the VMO/VL EMG Activity Ratio According to Resistance Condition in Partial Lunge Exercise

Purpose@#The purpose of this study was to investigate the effects of the resistance conditions on the electromyography (EMG) activity ratio of vastus medialis oblique (VMO) and vastus lateralis (VL) muscle during partial lunge exercise in healthy subjects in order to suggest the basic data of exercise intervention for such as patients with patellofemoral pain syndrome (PFPS). @*Methods@#The participants of this study were healthy twenty two people with no knee pain, limitation of motion and past history of operation at lower extremity. The participants performed three types of lunge 1) no resistance, 2) anterolateral 45° resistance and 3) lateral 90° respectively. The EMG activity of the VMO and VL were recorded by surface EMG and the measured data normalized by the %MVIC value was analyzed by repeated measured ANOVA. @*Results@#The results showed that the VMO/VL EMG activity ratio during lunge with anterolateral 45° resistance was significantly higher than with no resistance and lateral 90° resistance (p0.05). @*Conclusion@#This study suggests that partial lunge exercise with anterolateral 45° resistance can increase the VMO/VL muscle activity in healthy subjects. This result could be used as basic data to develop therapeutic exerc

Effects of Virtual Reality Horse Riding Simulator Training Using a Head-Mounted Display on Balance and Gait Functions in Children with Cerebral Palsy: A Preliminary Pilot Study

PURPOSE: The purpose of this study was to investigate the effects of three-dimensional virtual reality horse riding simulator training using a head-mounted display on gait and balance in children with cerebral palsy.METHODS: Ten children with cerebral palsy were randomly assigned to the horse riding simulator (HRS) group (n=5) or the horse riding simulator with virtual reality (HRSVR) group (n=5). To evaluate balance, center of gravity (COG) sway velocity and total sway distance of each group were assessed using the Wii balance board, and gait speed and stride length of each group were assessed using a gait analysis system.RESULTS: Intra-group comparisons between pre- and post-intervention measures revealed that there were significant changes in all gait and balance variables such as stride length, gait velocity, COG sway velocity and COG sway distance in the HRSVR group (p<0.05). In the HRS group, there were significant changes in all variables except stride length (p<0.05). In addition, inter-group comparisons showed significant differences between the two groups in stride length, gait velocity and COG sway distance except COG sway velocity (p<0.05).CONCLUSION: The findings of this study suggest that horse riding simulator training combined with 3D virtual reality can be a new positive therapeutic approach for improving functional performance in children with cerebral palsy.

The Effect of a Proximal and Distal Tibiofibular Joint Manipulation on Dorsiflexion and Balance in Individuals with a History of Lateral Ankle Sprain

PURPOSE: This study aimed to evaluate the changes in dorsiflexion and balance following proximal and distal tibiofibular joint manipulation in individuals with a history of lateral ankle sprain (LAS). METHODS: Fifteen participants with a history of unilateral LAS, exhibiting a restriction in ankle dorsiflexion were included in this study. LAS ankle received a manipulation to the proximal and distal tibiofibular joint, while the opposite control ankle received no manipulation intervention. The outcome measures included ankle dorsiflexion and balance. Ankle dorsiflexion was measured using weight-bearing lunge test. Static and dynamic balances were measured using the overall, anterioposterior, and mediolateral balance index via the biodex balance system. Measurements were obtained prior to and following manipulation. RESULTS: This study showed that ankle dorsiflexion and dynamic balance were improved following the manipulation compared to those prior to the manipulation (p0.05). CONCLUSION: The joint manipulation technique applied to the ankle of those with a history of LAS appears to improve ankle dorsiflexion and dynamic balance. This suggest that a manipulation to the proximal and distal tibiofibular joint could be provided as preliminary data regarding the prophylactic effects of recurrent LAS.

The Effect of an Epidural Corticosteroid Injection on the Early Stage of Bone Metabolism

OBJECTIVE: The purpose of this study is to find out what is the effect of epidural corticosteroid injection on bone metabolism. METHOD: We have assessed the systemic effects of a single epidural triamcinolone acetonide injection on biochemical indices of bone formation and resorption in patients with lumbosacral radiculopathy. Twenty patients who had lumbosacral radiculopathy and free from exposure to corticosteroid for at least 6 weeks were selected for this study. Patients were classifed as two groups; 1) epidural block with 2% lidocaine 3 ml and 0.9% normal saline 15 ml (4 men, 5 women; mean age 47.2+/-7.6 years) and 2) combination of triamcinolone acetonide 40 mg (5 men, 6 women; mean age 49.6+/-8.2 years). Fasting serum and the second voided urine were collected at 0, 1, 3, 7 and 14 days after the single epidural injection for bone-related biochemicalmarkers measurements. RESULTS: 1) Level of serum osteocalcin showed a significant time trend in the epidural corticosteroid injection group. Osteocalcin decreased dramatically from 11.2+/-3.4 ng/ml on day 0 to 5.9+/-2.8 ng/ml on day 1, 6.1+/-1.5 ng/ml on day 3 (p<0.05). After the initial drop, the level recovered to 9.8+/-3.7 ng/ml by day 7, and returned to preinjection level on day 14, at 10.9+/-4.1. 2) Urinary deoxypyridinoline levels did not show any significant changes. CONCLUSION: According to the above results, the epidural injection of corticosteroid may be a better therapeutic mode, with less potential for harmful effects to bone metabolism, in providing effective relief of symptoms to patients with lumbosacral radiculopaties.

A Study on the Application of a Dementia Prevention Program and It's Effect Test / 재활간호학회지

The objective of this study was to apply a dementia prevention program to the subjects who were suspected of dementia and test its effect. This study was one group pretest-posttest design. The dementia prevention program was applied for 20 weeks to the 19 subjects who were suspected of dementia after a screen test among 638 subjects enrolled in 10 senior citizen's centers in G city. The scores of measured before and after the program. The data collected were analyzed using a SPSS (statistical analysis system) program, and frequencies, averages and standard deviations were obtained. The differences of the scores of the pretest and posttest were analyzed with Mann-Whitney test and sign test. The results were as follows: 1. After the program, the average score of self-efficacy was increased from 75.31 (standard deviation 11.99) to 84.26 (standard deviation 13.92). 2. There are no differences between the average scores of physical and psychological quality of life, however, the average score of social quality of life was slightly increased from 2.25 (standard deviation 0.40) to 2.53 (standard deviation 0.43), and the overall score of social quality of life was low. 3. The average score of cognition was significantly increased from 21.00 (standard deviation 2.60) to 24.58 (standard deviation 3.37), thus, it was found that the program was effective to improve the cognition level. 4. The score differences of self-efficacy, quality of life, cognition between the pretest and posttest were statistically significant. 5. The score differences of quality of life between the pretest and posttest were found to be dependent on marital status, exercise and regular chechup yes or no. In conclusion, the program was effective to prevent the subjects suspected of dementia from dementia.

Spontaneous Intraperitoneal Hemorrhage in a Cervical Spinal Cord Injured Patient with Warfarin Therapy: A Case Report

Spontaneous intraperitoneal hemorrhage in the patient who has cervical spinal cord injury and been treated by warfarin, is rarely reported. In general, adverse drug reactions of warfarin were reported as bleeding, cutaneous microvascular thrombosis. A 46-year-old C4 tetraplegia (ASIA A) patient had been treated by warfarin for a treatment and prevention of pulmonary embolism after cardiopulmonary resuscitation. Suddenly, the patient complained dyspnea and abdominal distension and we noticed that his hemoglobin count was very much lower than usual. So, we had the patient to take the abdominal CT and find out there was a bleeding in intraperitoneal area. We did angiography trying to find out the bleeding focus but in vain. We concluded that it was the spontaneous intraperitoneal hemorrhage due to warfarin therapy and we finally made an improvement with the conservative treatment.

Significance of Amplitude and Area Ratio of Compound Muscle Action Potential in Diagnosis of Diabetic Neuropathy

OBJECTIVE: The purpose of this study is to find out whether amplitude ratio and area ratio have correlation with nerve conduction velocity in the diabetes mellitus patients. METHOD: Median and deep peroneal motor nerve conduction study was performed in thirty-five normal control group and sixty diabetes mellitus patients group. The motor conduction velocity, amplitude ratio, and area ratio of the compound muscle action potential (CMAP) were measured. The experimental subjects were divided into 6 subgroups (in median nerve: M1, M2, M3, in peroneal nerve: P1, P2, P3) according to the median value of conduction velocity of each nerve; group M1 (n=35) and P1 (n=30): normal control group, group M2 (n=25) and P2 (n=30): below the median value of motor nerve conduction velocity in diabetes mellitus patients, group M3 (n=23) and P3 (n=29): above the median value of motor nerve conduction velocity in diabetes mellitus patients. RESULTS: There was no significant difference of area ratio between the each subgroups in both median and peroneal nerves. There was a significant difference of amplitude ratio between the M1 and M2 subgroups. There was a significant difference of amplitude ratio between the P1 and P2, P3 subgroups. CONCLUSION: According to above results, the decrease of amplitude of compound muscle action potential along with the decrease of conduction velocity seems to be helpful in the electrophysiologic diagnosis of diabetic neuropathy.

Characteristics of the Patients with Pain in Rehabilitation Medicine Outpatient Practice

OBJECTIVE: The purposes of this study are to find out the characteristics of patients with pain in outpatient practice of rehabilitation medicine and to provide basic data for outpatient management. METHOD: We surveyed a hundred one outpatient practices with questionnaire including the distribution of diagnosis, pain site, disease related with pain, pain treatment method, etc. RESULTS: 1) Distribution of diagnosis was traumatic brain injury (TBI) 10.5%, stroke 14.8%, spinal cord injury (SCI) 10.8%, musculoskeletal disorder (MSD) 55.8% and others 8.1% in training hospital, and TBI 6.7%, stroke 10.6%, SCI 14.0%, MSD 58.7% and others 10.0% in non-training general hospital, and TBI 2.6%, stroke 4.9%, SCI 2.9%, MSD 78.3% and others 11.3% in private clinic. 2) The most common site of pain was low back area. 3) The most common disease related with pain was myofascial pain syndrome. 4) Trigger point injection and physical therapy were performed for pain treatment in most of outpatient practice, whereas local injection and nerve block were less used. CONCLUSION: We believe that this study's results will provide helpful basic-data for management of outpatient with pain.