• PNF and Movement
• /
• 제16권1호
• /
• pp.151-159
• /
• 2018

Purpose: The aim of this study was to examine the activation of the contralateral upper and lower extremities and trunk muscle during ipsilateral upper extremity diagonal isokinetic exercise. Methods: Twenty-one healthy male subjects with no history of shoulder injury undertook ipsilateral diagonal isokinetic exercise at 60, 120, and $180^{\circ}/sec$, utilizing a standard Biodex protocol. Muscle activation amplitudes were measured in the upper trapezius, pectoralis major, biceps brachii, rectus abdominis, external oblique, rectus femoris, adductor longus, and biceps femoris muscles using electromyography. A one-way analysis of variance and paired t-tests were conducted, and the data were analyzed using SPSS, version 21.0. Results: The results revealed no statistically significant interaction between motion and angular velocity and no statistically significant contralateral muscle activation according to angular velocity (p>0.05). However, they revealed statistically significant contralateral muscle activation according to motion (p<0.05). Conclusion: These results suggest that the movements involved in contralateral upper extremity diagonal isokinetic exercise can enhance muscle strength in patients affected by stroke, fracture, burns, or arthritis.

• Korean Journal of Acupuncture
• /
• 제23권1호
• /
• pp.95-109
• /
• 2006

Objectives : There has been a considerable debate about how to best control for placebo effects in clinical trials of acupuncture. Recently several sham needles were developed and validated. This study aimed at summarising the validation studies of these needles and evaluating the outcomes of the randomised controlled trials (RCTs) using them. Methods : Computerised literature searches were performed using 'acupuncture' AND 'placebo OR sham' with a limitation of the results to RCTs in Medline via PubMed and the Cochrane Library. Only formally validated sham needle controlled studies were included. Data were extracted regarding study design, condition, sample size, credibility testing, intervention and outcomes. Methodological quality was assessed using a modified Jadad scale. Results : Three validated sham needles by Streitberger, Park, and Fink, were identified. Acupuncture's effectiveness for various conditions was tested using these needles in 12 RCTs. Real acupuncture was superior to sham acupuncture for rotator cuff tendonitis and hypertension. No significant differences between real acupuncture and sham acupuncture emerged for chemotherapy-related nausea and vomiting, postoperative nausea and vomiting, menstrually related migraine, acute stroke rehabilitation, chronic/episodic tension-type headache, neutrophil respiratory burst in healthy volunteers, alcohol withdrawal symptoms and chronic poststroke leg spasticity. Conclusions : The new sham devices have been adequately validated and may be useful tools for investigating specific research question. In spite of the sham needle's limits, the results of RCTs using such devices tend to suggest that the clinical effects of acupuncture are largely due to a placebo response.

• 센서학회지
• /
• 제19권5호
• /
• pp.349-355
• /
• 2010

Stroke patients, etc. can't use their hands because of the paralysis of their fingers, and their fingers could be recovered by rehabilitating training. In order to judge the rehabilitating extent of their fingers, the patients should grasp a cylindrical object in hospital. At present, the used object in hospital is only a cylindrical object, and can't measure the force of fingers. Therefore, doctors judge the rehabilitating extent by touching and watching at their fingers. So, the four-finger force measuring system which can measure the force of their fingers should be developed. In this paper, four-finger force measuring system with four force sensors which can measure the grasping force is developed. The force sensors are designed and fabricated, and the force measuring device is designed and manufactured by using DSP(digital signal processing). Also, the grasping force test of men is performed by using the developed four-finger force measuring system. It was confirmed that the finger average force of right hand is about 214.6 N and that of left hand is about 212.8 N.

• 센서학회지
• /
• 제19권3호
• /
• pp.238-245
• /
• 2010

Stroke patients can't use their hands because of the paralysis of their fingers. Their fingers are recovered by rehabilitating training, and the rehabilitating extent can be judged by grasping a spherical object. At present, the object used in hospital is only a spherical object, and can't measure the force of fingers. Therefore, doctors judge the rehabilitating extent by touching and watching at their fingers. So, the spherical object measuring system which can measure the force of their fingers should be developed. In this paper, the finger-force measuring system with a three-axis force sensor which can measure the spherical-object grasping force is developed. The three-axis force sensor is designed and fabricated, and the force measuring device is designed and manufactured using DSP(digital signal processing). Also, the grasping force test of men is performed using the developed finger-force measuring system, it was confirmed that the average force of men was about 120 N.

• 한국정밀공학회지
• /
• 제29권7호
• /
• pp.730-736
• /
• 2012

Latest, many researchers do research on wearable robot. The purpose of the researches is very diverse, it will improve efficiency in the industry, taken to replace the many workers in the military field and taken to assist bodily functions run out by aging. However, there is no clear Differentiated strategy depending on the purpose for design and control of the wearable robot. Although a common purpose is to drive the robot by the sensor signal (intent signals), the optimization about the mechanism and control studies must be done according to the user's physical ability and purpose. In this study, the study's first phase for the development of wearable robotic gait rehabilitation, gait characteristics were analyzed elders and hemiplegia patients using a 3D gait analysis system (VICON512). As a result, asymmetric gait characteristics of the hemiplegia patients were found compared with the normal elderly.

• PNF and Movement
• /
• 제3권1호
• /
• pp.17-26
• /
• 2005

Objectives : The purpose of this study is to identify influence that PNF method have an effect in function restoration of the impaired patients of central nervous system. Methods : The data were collected by 15 adult stroke patients. The treatment was based on proprioceptive neuromuscular facilitation techniques. Temporal and spatial parameters of gait were analysed for using the computerized GAITRite system. Results : In the comparison of functional ambulation profile(FAP) before and after experiment, the FAP was significantly increased in the PNF method. The gait velocity, cadence and single support time asymmetry ratio was significantly increased in the PNF method. The Motor Assessment Scale was significantly increased in the PNF method. Conclusions : Based on these results, it is concluded that the forced PNF method for 6 weeks can be improve the temporal-spatial gait parameters including FAP in hemiplegic patients. Therefore, the forced PNF method is useful to improve the function restoration in hemiplegic patients. Further study should be done to analyze the effects of intervention duration of treatment, optimal time to apply the treatment in more long peried.

• PNF and Movement
• /
• 제21권2호
• /
• pp.213-222
• /
• 2023

Purpose: The purpose of this study was to investigate the effects of heel-raise-lower with Kinesio Taping (HKT) on spasticity and balance ability in patients with chronic strokes. Methods: The participants were divided randomly into the HKT group and heel-raise-lower with sham (control group), with 38 participants assigned to each group. Both groups received heel-raise-lower lifting 100 times, 5 times/week for 4 weeks. The HKT group applied Kinesio Taping to the calf muscles. The control group applied Kinesio Taping transversely to the ankle joint and tibialis anterior muscle. The composite spasticity score was used to evaluate the ankle plantar flexors. The center of pressure with the eyes open and closed and limited stability was measured using BioRescue equipment. Both groups evaluated spasticity and balance ability before the experiment and after 4 weeks. Statistical methods before and after working around spasticity and balance ability were independent t-tests. Results: After training, spasticity showed significant improvement in the HKT group and in the control group (p < 0.05). Similarly, balance ability was significantly more improved in the HKT group after 4 weeks of training compared to the control group (p < 0.05). Conclusion: We confirmed the effects of heel-raise-lower with Kinesio Taping (HKT) on spasticity and balance ability in patients with chronic strokes.

• Journal of Acupuncture Research
• /
• 제40권4호
• /
• pp.329-343
• /
• 2023

Recently, acupuncture has demonstrated extraordinary clinical results in the treatment of several categories of health conditions worldwide. The mechanisms of action of acupuncture (including immune mechanisms) have been investigated by biomedical studies over the last few decades. The immune mechanisms of representative clinical conditions and their clinical effects were thoroughly assessed, with a comprehensive investigation into the mechanisms of action of acupuncture (including immune responses) in this study. Conditions such as stroke, migraine, depression, chronic fatigue syndrome, lower back pain, hypertension, irritable bowel syndrome, sepsis, and allergic diseases were meticulously examined. This in-depth analysis aims to ensure a foundational understanding of the immune mechanisms involved in acupuncture, thereby serving as an initial step toward integrating the impact of acupuncture on the immune system.

• 한방재활의학과학회지
• /
• 제18권1호
• /
• pp.47-63
• /
• 2008

Objectives : Eucommiae cortex is reported that it helps bone and skeletal muscle stronger. In case of bone, many report is presented, but reports related to skeletal muscle are rarely existed. So in order to investigate effects of Eucommiae cortex on the skeletal muscle atrophy following stroke, cerebral infarct was induced by the middle cerebral artery occlusion (MCAO) in the rats. Methods : In order to induce MCAO rats, nylon suture was advanced and then blocked middle cerebral artery(MCA). Water extract of Eucommiae cortex was treated for 15 days, once a day orally, after the MCAO. Effects were evaluated with muscle weights, muscle fiber type composition, cross-sectioned area of muscle fibers in soleus and gastrocnemius of the unaffected and affected hind limbs. And MyoD protein expression in gastrocnemius was demonstrated with immunohistochemistry and western blotting. Results : In the affected hind limb of the MCAO rats, muscle weight loss of gastrocnemius and tibialis anterior muscles were attenuated by Eucommiae cortex treatment. In soleus muscle of the affected hind limb of the MCAO rats, increase of type-I fibers and decrease of type-II fibers were induced by Eucommiae cortex treatment. In soleus muscle of the affected hind limb of the MCAO rats, decrease of cross-sectioned areas of type-I fibers was attenuated by Eucommiae cortex treatment. In gastrocnemius muscle of the affected hind limb of the MCAO rats, increase of type-I fibers and decrease of type-II fibers were induced by Eucommiae cortex treatment. In gastrocnemius muscle of the affected hind limb of the MCAO rats, decreases of cross-sectioned areas of type-I and type-II fibers were attenuated by Eucommiae cortex treatment. In gastrocnemius muscle of the affected and unaffected hind limb of the MCAO rats, MyoD expressions were increased by Eucommiae cortex treatment. Conclusions : These results suggest that Eucommiae cortex has a protective effect against muscle atrophy, through the inhibition of the muscle cell apoptosis, following the central nervous system demage.

• 감성과학
• /
• 제19권1호
• /
• pp.31-38
• /
• 2016

뇌와 근육은 상의 하달식 구조로 상지 운동 수행 과정에서 뇌파와 근전도 신호의 변화와 함께 기능적 연결성이 발생한다. 본 논문에서는 사용자가 상지 운동을 수행하였을 때의 뇌파와 근전도 신호에 대해 코히어런스 방법을 적용하여 운동 의도 여부에 따른 뇌와 근육간의 연결성 차이를 규명하고자 한다. 상지 운동을 수행하는 과정에서 운동 피질 영역의 뇌파는 뮤 리듬(mu rhythm, 8~14 Hz)과 베타 리듬(beta rhythm, 15~30 Hz)에서 활성화 되며, 근전도 신호는 베타 리듬과 파이퍼 리듬(piper rhythm, 30~60 Hz)에서 활성화 된다. 뇌파와 근전도 신호간의 코히어런스 분석 결과 운동 의도를 포함한 능동 운동 수행 시 수동 운동을 수행하였을 때 보다 유의미한 차이로 높은 코히어런스 계수가 확인되었다. 이는 인지적 반응과 근육의 움직임 사이의 코히어런스 관계로 운동 의도가 포함된 상지 운동 수행 과정에서의 뇌와 근육간의 연결성을 해석할 수 있었다. 운동 의도에 따른 뇌-근육간의 코히어런스 특징을 이용한다면 재활기기 사용자의 운동 의도에 따라 피드백이 필요한 재활 훈련 시스템 설계에 도움이 될 수 있을 것으로 사료된다.