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모정욱,심운택,이태용 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.2
The purpose of this study was to investigate school children's monthly incidence rates and causes of accident. The number of studied subjects were 279 school children. The results were as follows: 1. Average monthly incidence rate of accident for male was 17.8 per 100 persons, and that of female was 12.7. That of the 6th grade was 32.7, and the 1st grade was 5.6, and March was the highest in incidence rate of studied months. 2. The accidents occured most frequently in the 6th grade and relatively low in the 1st grade. 3. The presence of parents, their occupation, and education and monthly income of household were not affected school children's accident. 4. Time required and distance from house to school were concerned to children's accident. Walking was relatively lower than other way in the way of transport from house to school. 5. The majority sites of injury were legs & arms. 6. Most of injured children treated at the medical institute.
김봉옥,모정욱,정혜심,김병식 충남대학교 의과대학 지역사회의학연구소 1996 충남의대잡지 Vol.23 No.1
To evaluate the therapeutic effect of FES (Functional Electrical Stimulation) on hemiplegic gait, quantitative gait analysis was performed with computerized three dimensional motion analysis system (ELITE, B. T.S., Milan, Italy) with and without FES. The patient was 26 year old male with right hemiplegia as a result of severe traumatic cerebral contusion in left fronto-temporo-parietal area 7 years ago. The FES unit was consisted of one foot switch, one channel stimulator and one pair of surface electrodes. Active electrode was placed over deep peroneal nerve, 1 cm distally from the right fibular head to selectively stimulate the deep peroneal nerve, and reference electrode was placed 10cm distal from right fibular head between the Tibialis anterior and Peroneus longus. The characteristics of electical stimulation in this study included output current intensity : 1-50 mA, pulse width : 0.15 cosec, stimulation duration : 0-5 sec which was automatically adjusted on gait velocity, frequency : 25 Hz, and on-off triggered by foot switch. After FES for 1 hour per session, 3 sessions a week for 3 months, three dimensional gait analysis was performed with and without stimulation and data were analyzed. The result of three dimensional motion analysis showed that the ankle was dorsiflexed during swing phase and also corrected pathologic motion of other lower extremity joints with one channel FES stimulation on deep peroneal nerve compared to the gait without FES. And one channel FES with surface electrode was easy to handle and did not show significant complications or discomfort to the patient.
김봉옥,윤승호,모정욱,김병식 충남대학교 의과대학 지역사회의학연구소 1996 충남의대잡지 Vol.23 No.1
Kinematic characteristics at different speeds of walking are important to understand the basic mechanisms of locomotion. Fourteen men with no history of neuromusculoskeletal disorder were studied with three dimensional motion analysis system during walking with 5 different speeds (57.11-99.09m/min). Time parameters, distance parameters, and kinematic analysis of ankles, knees, hips, and pelvis on sagittal, coronal, and transverse planes were compared with each other on different walking speeds. It is found that increasing walking speed 1. increased stride length and stride length raio, but decreased the step length and step length ratio. 2. increased the angle of ankle, knee & hip joint on sagittal plane during early and late stance period, due to the greater forces at heel-strike and toe-off. 3. did not change the kinematic characteristics of ankle, knee & hip joints on 3 planes during the swing phase. The result of this study can be usefully utilized as the basic data to design and evaluate prosthetic devices, and to detect abnormal gait performances.