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강승록,유창호,권대규 한국정밀공학회 2017 International Journal of Precision Engineering and Vol.18 No.10
This study was to provide independent exercise loads in rowing exercise machine, on the improvement of muscle strength imbalance. We recruited twenty four subjects who exhibited one side's muscle strength is bigger in more of greater than 20% than other on one side. One group was dominant left side and the other group was dominant right side. Subjects performed the rowing exercise in electric load deviation rowing machine (Robo.gym, Humonic Co., Ltd, Daegu, Korea). The exercise was progressed to four sets a day including twenty five repetitions per set, and three days a week, for a total of eight weeks. Measurements consist of evaluation of muscular activity, joint torque in the elbow, shoulder. Exercise load deviation adapted that difference value of muscle strength between left and right side arms multiply 1RM% and its plus 1-RM 75% in each side. The result showed that the level of muscle imbalance significantly decreased in shoulder and elbow joint by adapting exercise load deviation. We found out that exercise load deviation provided to the positive effect both muscle strength and endurance at the same time. As a result of this study, rowing exercise using the exercise load deviation is effective in improving muscle strength imbalance.
Analysis of the Indoor Horse Riding Exercise Equipment on the Young People
강승록,유창호,정구영,문동안,박상용,김정자,권대규 한국정밀공학회 2013 International Journal of Precision Engineering and Vol. No.
The purpose of this study was to investigate the effect of indoor horse riding exercise equipment on the young people in their twenties. We classified the effects into flexibility, muscle strengthening, and muscular reaction. Subjects performed horse riding exercise using SRider (Neipplus Co. & Chonbuk National Univ, Korea) that we developed. Twenty male and twenty female subjects were included and they had no experience with horse riding as an exercise and no medical history of falling. Exercise was performed for 45 min a day and 3 days a week during 8 weeks in a constant temperature and humidity environment. Once a week, we conducted the bodyeffect measurements. We measured forward trunk flexion and backward trunk extension to verify the improvement of flexibility. We also measured lumbar joint torque using the BIODEX System3 to verify the improvement of muscle strength and reaction. Our results of flexibility showed that values of forward trunk flexion and backward trunk extension after the exercise were higher than those before the exercise. It also presented that the stimulated three-dimensional movement of the horse riding exercise activated joints and muscles not usually used. Besides, the continuous movement of horse riding can reduce muscle tonus and relax stiff muscles. The muscle strengthening and muscular reaction results showed that peak lumbar joint torque after the exercise was higher than that before the exercise. We found that the horse riding exercise using indoor equipment improved flexibility, muscle strength, and muscular reaction. Moreover, we hope that this work will help us understand the exercise characteristic of this equipment.
Effect of Long Time Whole-Body Vibration Training on Muscle Function and Postural Balance
강승록,권대규,유창호,Dong-An Moon 한국정밀공학회 2014 International Journal of Precision Engineering and Vol. No.
This study intended to identify the effect of the long time whole body vibration exercise on the muscle function and postural balance. The twenties subjects in young people were recruited, and they were classified into WBV and Non-WBV groups. The vibration exercisewas conducted 30 minutes a day for 4 days a week for a total 8 weeks, and the vibration protocol were 25Hz frequency and 5mmamplitude. To verify the muscle function according to the long time vibration exercise, the isokinetic muscle function of the knee jointtorque was evaluated, while the total work of maximal peak torque to evaluate the enhancement effect of muscular strength, as wellas the average power, angle to peak torque, and acceleration time to evaluate the muscular reaction, was analyzed. Also, changesin COP were measured and analyzed to research the functional change of the postural balance. As a result of the experiment, theNon-WBV group did not show changes in the muscular function and postural balance function, while the WBV group showedincreased muscular function by 29.11%(maximal peak torque: 17.91%, total work: 26.78%, average power: 39.11%, angle to peaktorque: 25.21%, acceleration time: 36.51%), and increased postural balance function by 64.76%.
좌우 독립운동부하 편차방식이 전신 근력재활효과에 대한 유효성
강승록(S. R. Kang),서신배(S. B. Seo),정구영(G. Y. Jeong),문동안(D. A. Moon),정장식(J. S. Jeong),김정자(J. J. Kim),권대규(T. K. Kwon) 한국재활복지공학회 2011 한국재활복지공학회 학술대회논문집 Vol.2011 No.11
The purpose of this study is to verify the validation on rehabilitation of muscle strength according to exercise load deviation type using rowing exercise. Our experiment"s subjects are all twenty subjects who have unbalance of muscle strength in left and right hand. Subjects performed rowing exercise using water laod and electric load instrument (Robo.gym .Humonic.korea). Exercise is performed 100-times a set, and three days a week. Measurement consists of evaluation of joint torque and basic physical fitness. The results showed that the gap of maximal peak torque was getting decreased significantly in groups. Also exercise load deviation group showed highest values than water load. Our study suggested that loading deviation could provide efficient whole-body muscle strengthen and improving muscle balance.
횡축 4정점 체중부하 감소기법 이용한 하지 근력불균형 개선에 미치는 효과
강승록(S. R. Kang),김의령(U. R. Kim),정호춘(H. C. Jeong),권대규(T. K. Kwon) 한국재활복지공학회 2013 재활복지공학회논문지 Vol.7 No.2
본 연구는 이중 벨트 트레드밀을 이용하여 좌우 독립적 보행 시 횡축 체중부하 감소 유무에 따른 하지근력불균형 개선효과에 대해 고찰하고자 한다. 피험자들은 하지의 좌우 근력차이가 20% 이상인 자 20명이며 체중부하 감소 유무에 따라 각각 10명씩 그룹으로 나누었다. 실험은 보행운동을 격일로 40분씩 주 3회, 총 4주간 진행되었으며 2주마다 등속성 관절토크 검사를 실시하여 고관절, 슬관절 및 족관절의 최대근력과 평균일률을 평가하였다. 실험 결과, 고관절에서 가장 큰 하지의 좌우 최대근력 불균형 개선효과(12.51%)를 보였으며 슬관절에서는 근반응성 개선효과(10.66%)가 크게 나타났다. 체중부하 감소방법은 하지의 근력불균형 개선효과에 긍정적인 결과를 기대할 수 있다고 사료된다. In this paper, we were to investigate effect of correction to muscle imbalance in lower limbs according to reduction of weight bearing methods of four point of horizontal shaft using two-belt treadmill. Participants were divided to two group according to each ten peoples who have difference of muscle function in left and right legs over 20%. Experiment progressed forty minutes a day three days a week, total four weeks and we estimated the maximal peak torque and average power for testing joint torque in hip, knee and ankle. The results showed that the correction effect of muscle imbalance to the maximal muscle strength was the most effective in hip joint. Also in knee joint, correction effect of muscular reaction was the most effective too. We thought that reduction of weight bearing methods could be positive effect to correct muscle imbalance in lower limbs.