Effect of Intensive Ankle Training Using Biofeedback on Normal Adults’ Ability to Control Weight Distribution

강권영,한경주 대한치료과학회 2018 대한치료과학회지 Vol.10 No.2

Objective: The purpose of the present study is to investigate whether intensive ankle training using biofeedback to increase proprioceptive senses and ankle-joint muscle strength effectively improves the balance of normal adults. Method: This study included 20 voluntary participants with normal adults. The subjects were randomly divided into 2 groups: the biofeedback intensive ankle training group (n=10) and the ankle training group (n=10). The biofeedback group used a visual biofeedback program. Subjects of the group that underwent ankle training only tried to keep their bodies balanced as well as possible on an Aero-Step. Both groups performed the exercise equally for three 30-minute sessions weekly for six weeks. The differences between the measurements before and after the experiment were analyzed using Wilcoxon signed-rank tests. Mann-Whitney U tests were used to analyze the differences in variations between the groups. Results: The biofeedback group showed significant differences in the weight distributions A, B, C, D, LEFT, and HEEL and on the weight-distribution index. In contrast, the ankle training group showed significant differences in the weight distributions A, C, and LEFT. A comparison of the differences between the two groups found significant differences between them in the weight distributions A, B, C, D, LEFT, and HEEL. Conclusion: The biofeedback group showed a greater ability to control weight distribution. A longer experimental period involving more subjects would aid in developing exercise programs that are more diverse.

고관절근력강화운동이 뇌졸중환자의 기능증진에 미치는 효과

강권영,이완희 한국전문물리치료학회 2006 한국전문물리치료학회지 Vol.13 No.3

The purpose of this study was to determine the consequence of resistance strengthening exercise on the hip flexor and extensor to improve functional mobility in stroke patients with more than six months poststroke. Seventeen patients were randomized as two groups. Both groups received conventional physical therapy for six weeks. In addition, the experimental group performed eccentric resistance strengthening exercise in the hip flexor and extensor using isokinetic dynamometer. The hip flexor and extensor strength, stair up and down, Timed get up and go (TUG), 10 m gait velocity, and functional reach were repeatedly measured at baseline, three weeks, and six weeks after treatment. The results were followed: The first, the experimental group improved more remarkably in the hip flexor and extensor strength, stair up and down, and 10 m gait velocity at each three weeks and six weeks after treatment than baseline (p<.05). The second, the control group improved significantly in the hip flexor and extensor strength, and 10 m gait velocity at three weeks after treatment than baseline (p<.05). The third, at each three and six weeks, the experimental group made greater gains in the hip flexor and extensor strength, stair up and down, and 10 m gait velocity than control group (p<.05). In conclusion, it is desirable to perform resistance strengthening exercises combined with conventional physical therapy to improve functional mobility in chronic stroke.

노인의 낙상방지를 위한 바이오피드백 훈련의 효과

강권영,이상빈,Kang, Kwon-Young,Lee, Sang-Bin 대한물리치료과학회 2009 대한물리치료과학회지 Vol.16 No.2

Background: The purpose of this study was to investigate effects of six-week biofeedback training for prevention of falling in elderly persons. Biofeedback training for using the TETRAX system. Methods: Thirty healthy elderly persons(men=17, women=13) who were 79 years of mean age participated in sensory regulation training. They were trained for thirty minutes a day, three times per week. We measured subjects sensory regulated function by TETRAX system, and analyzed mean difference of observed variables by paired t-test between the pre and post test. Results: The first experimental group were significantly difference between pre and post test. The second control group were not significantly between the pre and post test. The third there are significant between group. Conclusion: The results of this study reveal that biofeedback training exercise will improve sensory balance function, and further studies needs to identify which specific factors are related to fall in the elderly population, and it is expected this study may contribute in reducing fall and therapeutic exercise in falling.

만성 허리통증환자의 운동프로그램에 대한 효과

강권영,김은경,홍기훈,Kang, Kwon-Young,Kim, Eun-Kyung,Hong, Gi-Hoon 대한물리치료과학회 2011 대한물리치료과학회지 Vol.18 No.2

Background: The purpose of this study was to systematic review the effect of exercise programs for chronic low back pain patients. We needs systematic development of low back pain exercise program to reduce economic cost further doing great service to public health promotion. Methods: We searched to the effects of exercise programs for chronic low back pain patients by Dankook University electronic library databases of DBPIA, KSI KISS, CINAHL, MEDLINE and PEDro combined with a hand search of papers published in relevant journals. Any type of study relevant to the topic published during time period from 1970 to 2007 was included. Results: The literature search identified 30 studies. 1.Performing the flexion exercise increased abdominal muscle activity but acute herniated intervertebral disc should be avoided. 2.The general lumbar extension exercise used lumbar extension machine and the muscle power increases, significant probability the change. 3.The spinal segments exercise for the patients offered significant efficacy and appeared to be a reasonable therapeutic option. 4.Spinal stabilization exercises appear to improve trunk endurance and balance to patients with chronic low back pain. This exercise programs had effective decrease pain and disability. Conclusion: The review suggests that although the exercise programs for chronic low back pain patients, and we expected the efficacy of the exercise programs for chronic low back pain patients used in this study should be further investigated in a long period study and objective outcomes.

편마비환자의 균형기능 향상에 관한 문헌적 고찰

강권영,송병호 대한물리치료과학회 2008 대한물리치료과학회지 Vol.15 No.2

Background: Hemiplegic patients usually have difficulty maintaining balance. Balance training is a major component of there habilitation program for patients with neurological impairment. The purpose of this study was to investigate the effects of PLS(Posterior Leaf Spring), FES(Functional Electrical stimulation), treadmill training, and neurodevelopmental treatment on the improvement of balance in patients with hemiplegia. Methods: We looked into published studies from Dankook University’s electronic library databases of RISS4U, KMbase, NCBI, and MEDLIS concerning the effectiveness of any form of intervention leading to improvement of balance. All types of studies relevant to the topic that were published in English during the time period of 1986 to 2005 were included. Results: 1. There were significant differences in standing balance, dynamic activity balance, and gait speed between barefoot subjects and subjects who wore SPAFO and HPAFO(p<.05). 2. The changes in ROM and FRT related to sex, age, height, and weight part of the diagnosis, as well as experience relapse, was of meaningless value. Changes in ROM related to the duration of pain and experiences of falling down were also meaningless. However, FRT showed significant static differences(p<.05). 3. The body-weight-support treadmill training scoring of standing balance, step length, and a timed 10m walking test showed definite improvement. 4. The proprioceptive control approach improved dynamic balance in patients with hemiplegia. Conclusion: Consequently, further study is needed to verify methods when physical therapists are researching balance ability in hemiplegic patient.

Effects of Hippotherapy on Functional Ability for The Children with Cerebral Palsy

강권영 국제물리치료연구학회 2017 Journal of International Academy of Physical Ther Vol.8 No.2

The purpose of this study was to effects of hippotherapy on functional ability of children with cerebral palsy (CP). Fifty-seven children with CP participated were randomly divided into two groups. All of the groups received thirty minutes of conventional physical therapy program for three times a week per twelve weeks, however experimental group received additional fifteen minutes of the hippotherapy. Gross Motor Function Measure(GMFM) was used to compare the effects of hippotherapy. The results were as followings: GMFM score in dimensions A and B significantly increased in the control group after intervention. All dimensions of GMFM was significantly increased in experimental group after intervention. All dimensions of GMFM were significantly different between experimental group and control group. These results suggest that hippotherapy can be considered as a therapeutic method for physical therapy for the children with CP to improve the functional movements.

운동형상학적 지표와 운동역학적 지표에 의한 뇌졸중환자의 동작관찰 보행특성 연구

강권영,송 브라이언병 대구대학교 특수교육재활과학연구소 2013 특수교육재활과학연구 Vol.52 No.2

이 연구는 뇌졸중환자 20명을 대상으로 동작관찰 보행훈련을 실시하여 운동형상학적 지표와 운동역학적 지표를 비교하여 의미를 알아보았다. 대상자는 일반 보행훈련군 10명과 동작관찰 보행훈련군 10명으로 무작위 추출하였다. 동작관찰 보행훈련군은 정상보행 비디오 영상을 시청하고 보행훈련을 실시하였고, 일반 보행훈련군은 비디오 영상 시청 없이 보행훈련을 실시하였다. 주 3회 6주간 진행하였고, 실험 전과 후에 평가 하였다. 그 결과 운동형상학적 지표에서 일반 보행훈련군은 디딤기에서 무릎관절의 밖굽이와 흔듦기에서 무릎관절의 굽힘에만 유의한 차이를 보였다(p<.05). 이에 반해 동작관찰 보행훈련군은 디딤기의 골반 기울임, 가쪽기울임, 돌림, 엉덩관절 굽힘, 돌림, 무릎관절 돌림, 발목관절 등쪽굽힘, 안굽이, 돌림에서 유의한 차이를 보였고(p<.05), 흔듦기에서 골반 기울임, 가쪽기울임, 돌림, 엉덩관절 굽힘, 벌림, 돌림, 무릎관절 굽힘, 밖굽이에서 유의한 차이를 보였다(p<.05). 운동역학적 지표에서 동작관찰 보행훈련군에서는 엉덩관절, 무릎관절, 발목관절의 모멘트와 작업률에 유의한 차이를 보였고(p<.05), 일반 보행훈련군은 차이가 없었다(p>.05). 이상의 결과로 신경학적 손상을 가진 뇌졸중환자의 인지기능을 바탕으로 감각적 자극을 통한 운동학습이 뇌가소성을 촉진시켜 적절한 움직임의 기능을 향상시킬 수 있었고, 동작관찰 훈련은 손상된 뇌 영역의 활성화를 간접적으로 규명하는 결과를 나타내었다. 이후 연구에서는 동작관찰 훈련 프로그램의 수준과 과제수행의 다양화를 모색해야 할 것이며, 훈련 프로그램의 일반화를 위해 지속적인 연구가 있어야 할 것이다. This study performed action observation gait training(AOGT) on gait for 20 stroke patients and examined resulting kinematic and kinetic parameters. The subjects were randomly grouped into a general gait training(GGT) group with 10 people and a AOGT group with 10 people. The AOGT group watched a video of normal walking before gait training and the GGT group started gait training without watching it. The training lasted for 6 weeks, 3 times a week and kinematic and kinetic parameters were checked both before and after the training experiment. As a result, the GGT group showed significant differences only in the valgus of knee in the stance phase and the knee flexion in the swing phase(p<.05). The AOGT group presented significant differences in the pelvic tilt, pelvic lateral tilt, pelvic rotation, hip flexion, hip rotation, knee rotation, ankle dorsiflexion, ankle varus, and ankle rotation(p<.05) in the stance phase. Also the group showed significant differences in the plvic tilt, pelvic lateral tilt, pelvic rotation, hip flexion, hip abduction, hip rotation, knee flexion and valgus(p<.05) in the swing phase. AOGT showed significant differences moment and power of hip joint, knee joint, ankle joint(p<.05) but, GGT not significant. The research experiment found that, based on the cognitive function of stroke patients with neurological indisposition, motor learning through sensory stimulations facilitated brain plasticity and improved proper functions of motion and the AOGT indirectly identified stimulated brain activities. The researchers expect that future studies should explore how to improve and diversify AOGT programs. More studies should continue for further training program generalization.

Assessing the Differences in the Degree of Lower Limb Muscle Activation in Numerous Squat Positions Using Body Weight between Whole-Body Cross-Alternating Vibration and Sonic Vertical Vibration

강권영 국제물리치료연구학회 2023 Journal of International Academy of Physical Ther Vol.14 No.3

Background: A decrease in physical activity has been observed due to the global pandemic, resulting in the onset and progression of musculoskeletal disorders as chronic diseases. Objectives: This study aimed to assess the difference in the degree of contraction of the lower limb muscles between the existing vertical vibration method and a new cross-vibration method. Design: Randomized controlled trial. Methods: The exercise program using whole-body vibration equipment was conducted for 12 sessions, 25 min per session, three times per week for 4 weeks. Results: The changes over time showed a significant difference in cross-alternating vibrations (P<.05), except for the lateral gastrocnemius and tibialis anterior, with no significant difference in sonic vertical vibration (P>.05). The interaction between time and group was significant for all muscles (P<.05), except for the biceps femoris, with differences between before the program and at 2 and 4 weeks after the program revealed in the post-hoc analysis. Conclusion: Future studies should further evaluate the use of CAV exercise devices as auxiliary equipment

The effect of sensory-motor training on balance function in adult women using rhythmic auditory stimulation and sonic vibration

강권영 대한치료과학회 2020 대한치료과학회지 Vol.12 No.2

Objective: The purpose of this study was to investigate the effect of additional sensory stimulation on balance by combining sensory-motor training with sonic vibration that helps balance the development of muscles and auditory stimulation that improves motor performance. Method: Twenty women drew lots and were randomly assigned to the experimental group and the control group. Both group performed 40 minutes per session, once in the morning and once in the afternoon five times a week for four weeks. Results: The stability index and the weight distribution index showed siginificant differences in the experimental group(EG) compared to the control group(CG). There was a siginificant difference in the EG(NO, NC, PO) and the CG(PO, HL) the A % weight distribution. B %, there was a siginificant difference in the EG(NO) and the CG(HR). C %, the EG(NO, NC, PO, PC, HB) and the CG(NC, PO, PC, HL) showed a siginificant difference. D %, there was a siginificant difference in the EG(NO, PO, PC, HL, HF) and the CG(NO, PC, HB). Conclusion: The results of this study showed that sonic vibration sensory-motor training combined with rhythmic auditory stimulation resulted in significant differences in the stability index, weight distribution index, and weight distribution.

The effect of spine correction training combined with vibration stimulation on body alignment and balance

강권영 대한치료과학회 2020 대한치료과학회지 Vol.12 No.1

Objective: This study aims to verify the positive effect of the combination of spinal correction exercise and sonic whole-body vibration using the Mackenzie exercise on the balanced development of muscles and to propose effective exercise methods as therapeutic exercises for muscle development. Method: Two groups with and without sonic whole-body vibration therapy were randomly selected. Both the experimental group and the control group walked on the treadmill for five min to warm up and then to cool down. The McKenzie correction exercise program is divided into twelve movements. The control group performed the program ten times at two minutes per session for a total of twenty minutes. The experimental group performed five sessions of the correction exercise for ten minutes and the sonic whole-body vibration treatment for ten minutes, for a total of twenty minutes, twice a day for four weeks at five times a week. Results: All dependent variables was statistically different from pre to post exercise in experimental group(p<.05) but no significant in control group(p<.05). In the body alignment, the alignment of the head and pelvis showed a significant difference in the experimental group compared with the control group(p<.05). In the changes in body balance, both the right and left changes and the anterior and posterior changes of the feet showed a significant difference between the experimental group and the control group(p<.05). Conclusion: Spine correction exercise with added sonic whole-body vibration for four weeks showed positive changes in body alignment and balance. This exercise is considered an effective exercise method to maintain normal posture through balanced development and learning of muscle strength.