정상 성인의 수동적 슬관절 고유수용성 감각 검사

박헌종,서경묵,강시현,김돈규,서종현 대한재활의학회 2009 Annals of Rehabilitation Medicine Vol.33 No.6

Objective: To establish appropriate test angle of passive knee proprioception test and to compare with active knee proprioception test. Method: Thirty one healthy volunteers were tested in seated position on isokinetic machine. For passive test, the knee joints were placed in starting angle of 0˚, 30˚ in flexion test and 90˚, 60˚ in extension test. To memorize target angle, they were passively positioned to the target angle and left hold for 10 seconds, and returned to starting position. After these processes, knee joints were passively moved toward flexion and extension target angle. The subjects were instructed to press stop button when the memorized angles were reproduced. The tests were performed 3 times for each 6 different test angle. The active test were performed with the same memorized process but the subjects moved actively to reproduce target angles. The absolute angular errors (AAE) between target angle and produced angle were measured and compared. Results: In passive proprioception test, the AAEs were increased according to the test angle differences were increased from 30˚ to 60˚. In the same target angle difference, there were no differences between starting positions. When the results of passive test were compared with active test, there were no significant differences in the flexion test, but larger angular error were measured in extension test. Conclusion: The passive knee proprioception test could be useful for patients with lower extremity weakness. Considering the possible error of large angular difference, the testing angular differences should be properly selected. Objective: To establish appropriate test angle of passive knee proprioception test and to compare with active knee proprioception test. Method: Thirty one healthy volunteers were tested in seated position on isokinetic machine. For passive test, the knee joints were placed in starting angle of 0˚, 30˚ in flexion test and 90˚, 60˚ in extension test. To memorize target angle, they were passively positioned to the target angle and left hold for 10 seconds, and returned to starting position. After these processes, knee joints were passively moved toward flexion and extension target angle. The subjects were instructed to press stop button when the memorized angles were reproduced. The tests were performed 3 times for each 6 different test angle. The active test were performed with the same memorized process but the subjects moved actively to reproduce target angles. The absolute angular errors (AAE) between target angle and produced angle were measured and compared. Results: In passive proprioception test, the AAEs were increased according to the test angle differences were increased from 30˚ to 60˚. In the same target angle difference, there were no differences between starting positions. When the results of passive test were compared with active test, there were no significant differences in the flexion test, but larger angular error were measured in extension test. Conclusion: The passive knee proprioception test could be useful for patients with lower extremity weakness. Considering the possible error of large angular difference, the testing angular differences should be properly selected.

골프 경기보조원들의 근골격계 통증 양상 및 관련인자

박헌종 ( Heon Jong Park ),서경묵 ( Kyung Mook Seo ),강시현 ( Si Hyun Kang ),성상윤 ( Sang Yoon Sung ),김돈규 ( Don Kyu Kim ) 대한스포츠의학회 2008 대한스포츠의학회지 Vol.26 No.1

We conducted a survey of 184 female caddies working in the Seoul area concerning their general characteristics in a season and painful body sites. Their work-related stress factors were classified into 8 categories. 91 persons had leg pain which was related to age, carrier and the physical working environment as a job stress factor. 76 persons had shoulder pain which was related to the body mass index, job burden and past injuries. 50 persons had back pain which was related to job burden, the physical working environment, work demand, work self-regulation and culture. 42 persons had neck pains which was related to past injuries and number of years on the job. 10 persons had arm pain which was related to the average time spent in housework(p<0.05). Our study demonstrated that musculo skeletal pain experienced by caddies is correlated with various work-related stress factors. Therefore, improvement in those factors, safety education, and precautionary measures should be taken for prevention.

신경회로망을 이용한 원격 탐사 영상의 정합

이주원(J. W. Lee),박헌종(H. J. Park),박성록(S. R. Park),조원래(W. R. Jo),김영일(Y. I. Kim),이건기(G. K. Lee) 대한전자공학회 2001 대한전자공학회 학술대회 Vol.2001 No.6

시즌 중 이동 의무실을 이용한 프로골퍼들의 통증 양상

서경묵,김돈규,성상윤,박헌종 대한재활의학회 2008 Annals of Rehabilitation Medicine Vol.32 No.2

Objective: To investigate the distribution of pain and its characteristics reported by professional golfers during playing season. Method: From April 2006 to August 2007, we operated a mobile clinic equipped with a physical therapy unit during the professional golf competition. For professional golfers who had visited the clinic during this period of time, we investigated distribution of pain and its characteristics through interviews and medical records. Results: A total of 118 professional golfers visited the mobile clinic during the service period. The analysis of pain distribution showed that spine (56.3%) including low back, cervical, thoracic spine was the most common area of pain complaints, followed by upper extremity (33.1%), lower extremity (9.1%) in order. Based on the detailed anatomical distribution, low back was the most common pain site (22.5%). In case of the upper extremity pain group, left side pain was more prevalent than that of right side. Compared with spine pain group, upper extremity pain group was significantly older and also had more professional career (p<0.05). This implies that upper extremity injury may relatively caused from repetitive stress of golf swing. Conclusion: The results imply that golf imposes a relatively high burden on spine and upper extremity in professional golfers.

편마비 환자의 어깨관절 통증에서 근육 내 저주파 전기자극치료의 효과

성상윤,서경묵,강시현,박헌종,김돈규 대한재활의학회 2008 Annals of Rehabilitation Medicine Vol.32 No.5

Objective: To investigate the effects of intramuscular low frequency electrical stimulation on shoulder pain in hemiplegic patients.Method: Twenty five hemiplegic shoulder pain patients were divided into two groups. For experimental group, we inserted stainless steel acupuncture needle on the motor points of supraspinatus, infraspinatus, trapezius and middle deltoid muscle and applied intramuscular electric stimulation (4 Hz, unsymmetric spike pulse, 2.0 ms of pulse width) for twenty minutes, three sessions a week, in total 10 sessions. For control group, we applied transcutaneous electrical nerve stimulation for twenty minutes. Visual analog scale(VAS), passive range of motion of shoulder joint, and Korean version of modified Barthel index (K-MBI) were measured before and after the treatment.Results: The VAS of experimental group significantly decreased from 7.23±0.83 to 3.04±1.52, while control group showed a slight decrease from 7.50±0.70 to 5.64±0.74. The experimental group showed significant improvement compared to the control group (p<0.05). In the experimental group, there were significant improvements in motion of abduction from 103.6±20.5 to 134.0±32.3 and external rotation from 60.0±19.6 to 68.6±19.7 (p<0.05) even though there were no significant differences between the two groups.Conclusion: Intramuscular low frequency electrical stimulation improved pain as well as the range of motion. This could be used for the treatment of hemiplegic shoulder pain

램제트 탄약의 운용환경을 고려한 약실분리마개 구조 설계

변세범(Sebeom Byeon),박헌종(Hyunjong Park),허준회(Junhoe Heo),김주영(Juyeong Kim),강인영(Inyoung Kang),이상연(Sangyeoun Lee) 한국추진공학회 2023 한국추진공학회 학술대회논문집 Vol.2023 No.11

정적 스트레칭과 PNF 스트레칭이 KPGA 프로골퍼의 요부유연성에 미치는 초기 효과

장경모 ( Kyung Mo Jang ),서동익 ( Dong Ick Seo ),서경묵 ( Kyung Mook Seo ),박헌종 ( Heon Jong Park ) 대한스포츠의학회 2008 대한스포츠의학회지 Vol.26 No.2

The purpose of this study was to determine the early effect of static and PNF (proprioceptive neuromuscular facilitation) stretching on back flexibility in professional golfers of KPGA (Korea Professional Golfer Association). 44 professional golfers were randomly divided into two groups. GroupⅠ(n=23) performed a static stretching and groupⅡ(n=21) performed a PNF stretching. Back flexibility was measured immediately before and after application or rest by SR(sit-and-reach) test. Back flexibility significantly increased in both groups (p<0.05) but, more significantly increased in groupⅡ (p<0.05). The results of this study indicated that static and PNF stretching on back immediately increased back flexibility and more significantly in group with PNF.