• 한국융합학회논문지
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• 제11권4호
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• pp.63-69
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• 2020

본 연구는 복부압박벨트가 만성 뇌졸중 환자의 안정성한계와 보행 변수에 즉각적인 효과를 알아보기 위해 실시하였다. 뇌졸중 환자 30명을 모집하여 복부압박벨트 착용 전과 복부압박벨트 착용 후 변화를 확인하였다. 측정은 균형변수인 안정성한계(limited of stability), 시공간적 보행 변수(spatiotemporal gait parameter)를 측정하였다. 복부압박벨트 착용 후 마비측, 비마비측, 전방, 후방 이동면적이 유의하게 증가하였고(p<.05), 시간적 보행 변수인 분속수(cadence), 보행속도(gait velocity), 공간적 보행변수인 보폭(stride length)이 유의하게 증가하였다(p<.05). 본 연구를 통해 복부압박벨트 착용은 뇌졸중 환자에게 균형과 보행 기능 개선에 즉각적인 효과가 있다는 것을 확인할 수 있었다. 향후 연구에서는 뇌졸중 환자의 균형과 보행 기능 개선에 효율적인 복부압박 수준과 중재기간에 대한 연구가 필요하다.

• 대한추나의학회지
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• 제3권1호
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• pp.55-64
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• 2002

Objectives : Acupuncture therapy is known as a effective method to CVA with paralysis. To make clear about effectiveness of acupuncture affecting to active and static postural adaptation for the patient with hemiparesis, we studied whether acupuncture changed ability of maintenance with one leg standing posture, and character of gait such as gait velocity, cadence, stride length, step length and base of support. Methods : This clinical study has been carried out with 10 cases of CVA patient with hemiparesis. We treated patients with acupuncture for 4 weeks, estimated each paralytic leg and well leg before 1st treatment and after last treatment, and compared the change of one leg with the other. To estimate the change of ability of static postural adaptation, we checked the time of duration with one leg standing posture. And about active postural adaptation, we used temporal distance gait analysis with Ink-Foot-Print method. Results and Conclusions : In static postural adaptation, paralytic leg significantly improved the duration with one leg posture. And In active postural adaptation with gait analysis, paralytic leg showed significant improvement in stride length and step length. Base of support and cadence were also significantly improved.

• 한국콘텐츠학회논문지
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• 제9권12호
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• pp.691-698
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• 2009

본 연구의 목적은 현수 기간 중 적용한 신경근 전기자극의 사전 적용이 흰쥐 뒷다리 근육의 무게와 후지 기능에 미치는 효과를 알아보는데 있다. 이를 위해서 25마리의 Sprague-Dawley계 흰쥐를 14일 동안 현수한 HLS군(n=5)과 14일 동안 자유롭게 사육한 WB군(n=5), 현수 기간 중 14일간 사전 전기자극을 실시한 ES14군(n=5), 현수 기간 중 11일간 사전 전기자극한 ES11군(n=5), 현수 기간 중 7일간 사전 전기자극한 ES7군(n=5)에 무작위 배치하여 실험을 진행하였다. 실험결과, HLS군과 ES7군에서 비복근의 근무게, 후지 활보장의 유의한 감소와 외향각의 유의한 증가가 관찰되었고, ES14군과 ES11군에서 비복근의 근무게와 후지 활보장, 외향각이 유의하게 유지되었음을 관찰하였다. 즉, 14일 및 11일의 사전 신경근 전기자극이 근위축 지연과 근기능 보존에 효과적임을 보여주고 있다. 이러한 결과는 근위축 예방 및 기능 유지를 위해서는 신경근 전기자극을 가능한 조기 적용해야함을 알려주고 있다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 추계학술대회 논문요약집
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• pp.24-24
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• 2003

For the elderly, achieving a close-to-normal ambulation is important for activities of daily life. Recent researches of SE(Silver Engineering) restoring physical ability would help the elderly by developing the advanced gait assisting devices and orthoses. For the applications using the advanced technologies, the gait characteristics of the elderly must be understood. However, a few studies were performed to investigate the physiological or pathological gaits. The purpose of this study is to provide the gait analysis data and also to investigate relationships between alignment of the lower limb, foot progression angle and knee joint moments in the healthy elderly. By participating a total of 20 healthy elderly persons in this study, the following facts were found: 1) Cadence showed 114.8 steps/min, gait speed showed 1.05 m/s, time per a stride showed 1.06 sec, time per a step showed 0.53 sec, single-supporting phase was 0.41 sec, double-supporting phase was 0.24 sec, stride length was 1.04m, Step length was 0.56m; 2) The maximum knee flexion angle through swing phase showed left 46.82$^{\circ}$, right 40.19$^{\circ}$ and the maximum knee extension angle showed left -1.32$^{\circ}$, right 2.01$^{\circ}$. Knee varus showed left 26.90$^{\circ}$, right 30.93$^{\circ}$; 3) The maximum knee flexion moment showed left 0.363 Nm/kg, right 0.464 Nm/kg, The maximum knee extension moment showed left 0.389 Nm/kg, right 0.463 Nm/kg. The maximum knee adduction moment showed left 0.332 Nm/kg, right 0.379 Nm/kg. The maximum internal rotational moment showed left 0.13 Nm/kg, right 0.140 Nm/kg; 4) The subjects who had varus alignment of the lower extremity had statistically higher in knee adduction moment in mid stance phase; and 5) The subjects who had large foot progression angle had statistically lower in knee adduction moment in late stance phase.

• 대한물리의학회지
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• 제3권4호
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• pp.215-224
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• 2008

Purpose : The purpose of this study was to evaluate the effects of the Hahoe mask dance on the gait and muscle activity in the elderly who lived at a elderly welfare facility. Methods : Dancing group was consisted of 20 subjects(over 70 years). The time of measurement was assigned in pre measurement, after 1 month, after 2 months. Subjects was received the Hahoe mask dance for three times a week during 8 weeks. The control group was consisted of 20 the elderly (similar age) who didn't received dancing. Assessment of gait function included the gait velocity, step time, stride, step length, it was analyzed in activity for 4 muscles (rectus femoris, biceps femoris, tibialis anterior, and lateral gastrocnemius). Results : Activities for muscles of control group was decreased in rectus femoris, bieps femoris, however, those of experimental group was increased significantly(p<.05). While control group showed decrease in the gait velocity per second (p<.05), experimental group showed statistically significant increase(p<.05). Control group had a significant long time than that of control group in gait time of right and left foot(p<.05). Control group was a little longer than control group in stride time of right and left foot(p<.05). Step length for control group was shorter than that for experimental group both foots(p<.05). Conclusion : In conclusion, this study confirmed that activities for 4 muscles by EMG have showed significant increases, so we will use a programme of muscle improvement in elderly community welfare faculty. We recommend that further research should explore the degree of muscle activity by larger sample sizes and longer follow-up periods.

• 한국운동역학회지
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• 제15권2호
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• pp.129-138
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• 2005

The purpose of this study was to investigate the techniques used by long jumpers who recorded over 8meters in 2002 Busan Asian Game and 2003 Daegu Universiade. The kinematic characteristics from the last three stride to takeoff at the takeoff board were analyzed such as velocities, heights and angles. The real-life three-dimensional coordinates of 20 body landmarks during each trial were collected using a Direct Linear Transformation procedure. The conclusion were as follows; 1. The height variation who recorded over 8 meters of center of gravity of the jumpers at the last stride was under 8cm. In order to record over 8meters the national long jumpers should have under 10cm height variation. 2. In the approach phase the horizontal velocity of the jumpers should reach to 10.5m/s in last three strides and 9.79m/s in touch down at take off board. 3. The horizontal velocity at take off board must have over 8.51m/s and the vertical velocity must have 3.75m/s simultaneously in order to record 8meters. 4. The forward body lean angle should have over 20degrees with pushing the take off board in forwarding movement. The appropriate body variation range ratio between take off and touch down should be 1.2 vs 1 and the trunk angle at touch down on the board should be close to the erect posture for higher body flight.

• 한국운동역학회지
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• 제13권3호
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• pp.163-180
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• 2003

This paper aims at collecting the guantitative data of kenematic variables by analysing the gait patterns of the normal adult men and the handicapped. The gait motions were taped with 4 video cameras, the cinematographic analyses were performed by the DLT technique of three dimensional image treatment. The following results were obtained in the analysis of the variables: 1. The ratio of stance time and swing time did not show any significant difference in the groups of the normal men and the handicapped when both foot of the former and the right feet of the latter were compared. The stride peeriod time of these two groups were 1.12 and 1.11 second, respectively. 2. In the handicapped group, the step width was wider, the step length and stride length were shorter, and especially, the step length of the right foot was shorter, 3. The small vertical displacement of left toes of the handicapped group showed that the heal contact and the left midstance are almost simultaneous. 4. The two groups have almost the same horizontal displacement of the center of gravity and the same vertical rate of extension. In view of the velocity of the center of gravity the normal adults showed the constant speed of movement. However, the handicapped adults were reduced from the right midstance to the right toe-off. 5. The handicapped showed prominently low angle on the left toe-off in the ankle joint angle, they also had the tendency to walk in the patterns of extended knee in the knee joint angle. Both the handicapped and the normal had the hyperextension on the toe-off in the hip joint angle. In the back and front angle of body, both showed the slightly back-sided walking positions. 6. Both groups had the abduction of both feet in foot placement angle, but the handicapped did not show serious abduction of left midstance.

• 대한물리의학회지
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• 제11권1호
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• pp.61-69
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• 2016

PURPOSE: This study was conducted to investigate the effect of the virtual reality training (VRT) using 3-dimensional video gaming technology on spatiotemporal gait parameters in older adults. METHODS: The study participants were divided into two groups: the VRT group and the control group. Those in the VRT group were enrolled in a VRT, which was conducted for 60 min per day, two times a week, during the 6-week research. The Wii-Fit balance board game was used for the VRT intervention. The VRT consisted of 6 different types of games, namely, jogging, swordplay, ski jump, hula hoop, tennis, and step dance. A 3-dimensional TV was used for 3-dimensional display. Participants in both the groups received 3 sessions of fall prevention education, at the first, third, and fifth weeks. Their gait parameters were measured by using OptoGait. RESULTS: After 6 weeks of the VRT, the spatial gait parameters of the participants, that is stride length and step length, were significantly improved compared with those of the control group participants (p<0.05). The temporal gait parameters, such as velocity, cadence, stride time, and step time, also showed improvement after the completion of the VRT training (p<0.05). Both the temporal and spatial gait parameters of the VRT group participants showed improvement after 6 weeks of the program compared with those of the control group participants (p<0.05). CONCLUSION: The VRT using 3-dimensional video gaming technology might be beneficial for improving gait parameters to prevent falls among older adults.

• 대한물리치료과학회지
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• 제12권4호
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• pp.79-87
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• 2005

The purposes of this study were to test the effects of the low power laser and exercise on the recovery in the cerebellar injured rats by 3-Acetylpyridine. Cerebellar injury was induced by 3-Acetylpyridine chemoablation of the inferior olive. Thirty Sprague-Dawley rats were assigned to the normal control and 3AP control and 3 experimental groups. Each experimental group was treated from 5 days after being injured for the 5 min(laser group), 10 min(exercise group) and 15min(exercise with laser) everyday during the 2 weeks. The Hindlimb splay test, Vestibular drop test, Hindlimb stride width test, Maximal Height Vertical Jump test were examined at pre-treatment on 1st day and 5th, 10th, 14th days after treatment on the cerebellar injured rats by 3AP. The results of this experiment were as follows; There were significantly increased exercise on the 3 experimental groups comparied with the 3AP control group, in the Hindlimb splay test, Vestibular drop test, Hindlimb stride width test, and Maximal Height Jump test(P<.05).

• 대한정형외과스포츠의학회지
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• 제2권1호
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• pp.50-55
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• 2003

목적: 플라이오메트릭 훈련이 하지 슬관절의 굴곡과신전, 족관절의 배측굴곡과 족저굴곡의 등속성 총일량에 미치는 영향의 정도를알아보며이훈련법의효과검증을위해시도되었다. 대상및방법: 선택된 플라이오메트릭훈련 방식은 7가지로pike jump, double leg hop, double leg bound, single leg hop, stride jump cross over, alternate leg bound, box jump로구성되었다. 연구대상자는20 $\~$22세사이의대학생으로, 훈련시행군(N=5), 대조군(N=4)으로8주간 시행하고 훈련 전후 등속성 장비를 이용하여 슬관절과 족관절의 등속성 총일량을 측정하였다. 결과: 플라이오메트릭 훈련을 시행한군에서 높은 각속도의 슬관절과 족관절 운동의 총일량이 대조군에 비하여 증가하였다(p<0.05) .결론: 결과적으로 플라이오메트릭 훈련은 하지슬관절과족관절의등속성 총일량에 부분적으로영향을미치는것을알수있으며, 더나아가운동수행에도영향을미칠수있는것을의미한다.