• 한국전문물리치료학회지
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• 제26권1호
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• pp.75-83
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• 2019

Background: A tight iliotibial band (ITB) may lead to lateral patellar maltracking, compression, and tilt, and dominant vatus lateralis (VL) muscle activation relative to vastus medialis oblique (VMO) can laterally displace the patella, which leads to anterior knee pain. Therefore, an effective management technique is needed to stabilize the patella in individuals with tight ITB. Increased stability during the modified Thomas test has the potential to decrease compensatory motion and thus to selectively stretch the ITB. Objects: The purpose of this study was to determine the effects of ITB stretching in the modified Thomas test position on ITB flexibility, patellar translation, and muscle activities of the VMO and VL during quadreceps-setting (QS) exercise in individuals with tight ITB. Methods: Twenty-one subjects with tight ITB were recruited. Digital inclinometer was used to measure the hip adduction angle during the modified Ober test. Universal goniometer was used to measure the hip abduction angle during the modified Thomas test. Ultrasonography was used to measure the patella-condylar distance. Electromyography was performed to collect data of muscle activities. Paired t-test was used to determine the statistical significance between pretest and posttest. Results: The range of hip adduction in modified Ober test increased (p=.04) and the range of hip abduction in the modified Thomas test decreased after ITB stretching (p<.01). There was no difference between lateral patellar translation (p=.18). VMO muscle activity significantly increased after ITB stretching during QS (p<.01). VL muscle activity had no difference after stretching. Conclusion: The ITB stretching in the modified Thomas test position can be suggested as a management method for improving ITB flexibility and VMO muscle activity in individuals with tight ITB.

• 패션비즈니스
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• 제27권2호
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• pp.39-51
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• 2023

The purpose of this study was to effectively improve the thigh muscles of adult women working from home due to COVID-19. In this study, ten adult women working from home performed 1) an electromyography test, 2) a static balance test on a balance board, and a 3) dynamic balance test by squatting on a Bosu ball four times: before electric muscle stimulation (EMS), after EMS, after high-intensity circuit training (HICT), and after EMS plus HICT. For this test, EMS was attached to a medical knee support to manufacture an EMS knee band that could be easily worn regardless of the location. For the experiment, EMS(electric muscle stimulation) was attached to the medical knee protector to manufacture an EMS knee band that can be easily worn regardless of location, and was measured based on the right foot. The study results confirmed that in all tests (electromyography test, static balance test on the balance board, and dynamic balance test by squatting on a Bosu ball), thigh strength improved in the order of treatment before EMS, after EMS, after HICT, and after EMS plus HICT. The study showed that people working from home or with activity restrictions due to COVID-19 had better exercise effects when wearing the EMS knee band and performing HICT, even in a small space.

• Physical Therapy Rehabilitation Science
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• 제13권1호
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• pp.53-70
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• 2024

Background: The conventional deadlift is a popular exercise for enhancing trunk, core, and lower extremity strength. However, its use in sports medicine is constrained by concerns of lumbar injuries, despite evidence supporting its safety and rehabilitative benefits. To optimize muscle activation using resistive bands in variable resistance therapy, we explored their feasibility in the deadlift. Design: Comparative experimental design Methods: Surface electromyography recorded muscle activity in the trunk and lower extremities during lifting, with normalization to the isometric Floor Lift using Maximal Voluntary Contraction. Kinematics were measured using inclinometer sensors to track hip and trunk sagittal plane angles. To prevent fatigue, each subject only used one of the three pairs of bands employed in the study. Results: Our study involved 45 healthy subjects (mean age: 30.4 ± 6.3 years) with similar baseline characteristics, except for years of lifting and strength-to-years-of-lifting ratio. Various resistance band groups exhibited significantly higher muscle activity than conventional deadlifts during different phases. The minimal resistance band group had notably higher muscle activity in the trunk, core, and lower extremity muscles, particularly in the end phase. The moderate resistance band group showed increased muscle activity in the mid-and end-phases. The maximum resistance band group demonstrated greater muscle activity in specific muscles during the early phase and overall higher activity in all trunk and lower extremity muscles in the mid and end phases of the deadlift (p<0.05). Conclusion: Our findings provide valuable insights into muscle activation with various resistance bands during deadlift exercise in clinical and gym settings. There appears to be a dose-response relationship between increased resistance bandwidth, external load, myoelectric activation, and range.

• PNF and Movement
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• 제5권2호
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• pp.47-54
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• 2007

Purpose : The purpose of this study were to determine the effect of a Elastic Theraband Exercise Based of PNF L/E pattern on the gait of the chronic Hemiplegic Patients. Methods : We selected the 20 chronic Hemiplegic Patients not given treatment now and divided them into two groups of both 10 Elastic Theraband group and 10 Self Exercise. The first group went through a Elastic Theraband Exercise Based of PNF L/E pattern 30 minutes a day, 5 times a week, for 6 weeks. Exercise used to blue elastic band which 2 patterns of PNF by 1) hip extension - abduction - internal rotation with knee extension. 2) hip flexion - adduction - external rotation with knee flexion. The latter group experienced Self Exercise, 30 minutes a day, 5 times a week, for 6 weeks. Firstly, we measured the absolute improvement of gait velocity(m/s), cadence(steps/min) among walking characters. Secondly, we measured the functional walking ability such as Functional Ambulatory Category(FAC, score out of 5), Modified Motor Assesment Scale(MMAS, score out of 6). Data analysis was performed with using SPSS 12.0 win program. The descriptive analysis was used to obtain average and standard deviation. The independent t-test and the paired t-test were used to compare both the groups about pre and post training test. Treatment effects were established by pre and post assessment. Subjects tolerated the training well without side-effects. Therefore, the results of this study were as follows; Results : 1. There was a more significant improvement of Gait velocity(0.12m/s) Elastic Theraband group(p<.05). 2. There was a more significant improvement of cadence(9.40steps/min) Elastic Theraband group(p<.05). Conclusion : As we can see from above, the findings suggest that Elastic Theraband may be more effective than the Self Exercise for improving some gait parameters such as Gait velocity and Cadency. This conclusion also suggest that Elstic Theraband is more effective for the improvement of gait of chronic Hemiplegic Patients.

• 대한물리의학회지
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• 제11권2호
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• pp.25-31
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• 2016

PURPOSE: The purpose of this study was to compare the trunk muscle activity according to the direction of upper extremity lifting using elastic band. METHODS: Thirty three healthy individuals participated in this study. Each subject performed upper extremity lifting using elastic band on two different directions (straight and diagonal). And then we compared the muscle activity of respective trunk muscles of both directions. In order to examine the muscle activity of trunk muscle, we used the electromyogram to measure peak and mean torque in shoulder 90 degree flexion with sitting position. Electromyographic activities were recorded from the external oblique, internal oblique, rectus abdominis, and erector spine muscles during upper extremity lifting. RESULTS: As a result, first, there was significant difference between two directions. The muscle activity of ipsilateral external oblique and contralateral internal oblique is significantly increased in both straight and diagonal directions (p<0.05). Second, the muscle activities of external oblique and internal oblique of both side showed significant difference in diagonal direction (p<0.05). Third, the muscle activity of erector spine of both side showed significant difference in straight direction (p<0.05). CONCLUSION: Through this study, it is important that implement diagonal direction exercise at sitting positions to help increasing muscle activity of ipsilateral external oblique and contralateral internal oblique on patients when activating the trunk muscle or stabilizing the trunk.

• The Journal of Korean Physical Therapy
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• 제35권6호
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• pp.206-212
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• 2023

Purpose: This study aimed to compare the lasting effects of the flossing band technique, dynamic and static stretching on hamstring on range of motion (ROM), muscle activity, and proprioception to identify the most effective pre-exercise method for preventing injuries. Methods: Thirty participants were randomly assigned to the flossing band (FB), dynamic stretching (DS), and static stretching (SS) groups, with 10 subjects in each. Measurements included muscle activity of the biceps femoris vis surface electromyography, knee ROM and proprioception during active knee extension and flexion using a smart joint goniometer. Assessments were conducted before, immediately after, 15, and 30 minutes after each intervention. Results: Proprioception showed no significant differences among groups at any time point. Significant differences in knee ROM were observed in the FB group (except between 15 and 30 minutes after), DS group (except between immediately after and 15 minutes after, and between 15 and 30 minutes after), and SS group (except between before and 15 minutes after, and between before and 30 minutes after). Muscle activity in the FB (except between before and 30 minutes after, and between 15 and 30 minutes after) and SS (between before and immediately after, between immediately after and 30 minutes after, and between 15 and 30 minutes after) groups showed significant differences, while the DS group exhibited no significant changes. Conclusion: Although direct comparisons did not establish superiority, within-group analyses indicated that the flossing band technique exhibited longer-lasting effects than dynamic and static stretching, providing valuable insights for injury prevention program design.

• 한국전문물리치료학회지
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• 제30권1호
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• pp.50-58
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• 2023

Background: This study was carried out to determine whether non-face-to-face physical therapy would have similar exercise effects to face-to-face physical therapy. Hence, we developed an approach for patients, unable to visit hospitals due to circumstances such as the COVID-19 pandemic, to conduct physical therapy comfortably at home. Objects: This study aimed to compare the effects of a face-to-face and a non-face-to-face physical therapy treatment on improving a rounded shoulder posture. Methods: The participants with rounded shoulders were randomly divided into a face-toface group (n = 15) and a non-face-to-face group (n = 15), and each group performed exercises for four weeks. The exercise program consisted of the bare hands exercise, Thera-Band exercise, and foam roller exercise. The participants in the face-to-face group came to a designated place to perform their exercises, and those in the non-face-to-face group performed the exercises at their own home using Google Meet (Google). Acromial height, total scapular distance (TSD), shoulder pain and dysfunction index (SPADI), and pectoralis minor thickness were measured. Data analysis was performed using the R Statistical Software (R Core Team), and a normality test was performed using the Shapiro-Wilk test. Results: There were no significant differences between the face-to-face and the non-face-toface groups (p > 0.05). When comparing the differences before and after the exercises, both the face-to-face and the non-face-to-face groups showed significant differences in acromial height, SPADI, and pectoralis minor thickness (p < 0.05), and both groups showed no significant difference in TSD before and after the exercises (p > 0.05). Conclusion: The results of this study support the results of previous studies reporting that shoulder stabilization exercise and pectoralis minor stretching training improves round shoulders. In addition, this study revealed that both the face-to-face and the non-face-to-face physical therapy treatments had therapeutic effects.

• 한국인터넷방송통신학회논문지
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• 제20권1호
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• pp.187-192
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• 2020

IoT 기반 피트니스 헬스케어 시스템을 이용하면 실내외에서 정확한 운동량을 측정하고 언제 어느 곳에서나 스마트폰으로 필요한 운동정보에 대한 푸시메시지를 받을 수 있고 검색이 가능하여 매우 편리하다. 이 시스템은 운동기구에 있는 센싱장치를 포함한 IoT 모듈, IoT 게이트웨이, 스마트폰, 스마트밴드 및 서버 등이 인터넷으로 연동하게 된다. 본 논문에서는 이와 같은 "IoT 기반 피트니스 헬스케어 시스템"의 소프트웨어를 개발하는데 있어 객체지향 분석 방법인 UML을 이용한 소프트웨어 개발 분석 방법과 플로우차트 및 UI 설계 같은 설계 방법을 보여줌으로써 실무 개발에 적합한 분석/설계 방법을 제시하고자 한다.

• 대한의생명과학회지
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• 제2권1호
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• pp.71-90
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• 1996

장기간 반복 주행운동이 횐 쥐의 심근에 미치는 효과를 규명하기 위하여 생후 3개월,10개 월 및 20개월 된 횐 쥐를 운동군과 대조군으로 대별하여 motor driven treadmill을 이용하여 Park등이 사용한 방법에 준해서 5개월간, 주 5일 20분간 운동을 시킨 후 심근의 조직 및 세포학적 변화를 관찰하고 심근 세포 내 미세구조 변화를 입체해석학적으로 비교 분석하였다. 연령 증가에 따라 장기간 반복운동이 휜쥐 심근미세구조에 미치는 영향은 8, 15개월의 운동군과 대조군 사이에 뚜렷한 차이를 인정할 수 없으며, 15개월의 운동군에서 대조군에 비하여 변성된 사립체, 리소조옴, 지방적, 공포, 노화색소 등이 증가하는 경향이 있었다. 25개월 운동군은 같은 연령 대조군에 비하여 근원섬유 수축대, 근원섬유 소실, 윤반분리,세포간질 증식, 핵의 변성,교원섬유 근섬유내 침입 등 매우 심한 변화를 보였다. 조직상에 나타나는 early lipofusin과 미세구조상에 나타나는 노화색소는 8, 15개월의 운동군과 대조군 사이에 유의한 차이는 없었으며, 25개월 운동군은 같은 연령 대조군에 비하여 유의한 차이로 증가하였다. Glucose-6-phosphatase 활성도 8, 15개월군에서 운동군과 대조군에서 모두 활성이 높았으며 25개월의 대조군과 운동군에서는 모두 활성이 거의 나타나지 않았다. 미세구조 변화를 입체해석학적으로 분석한 결과 8, 15개월의 대조군과 운동군에서 체적 밀도의 모든 항은 양군사이에 유의한 차이가 없었다. 25개월에서는 세포간질이 대조군에 비하여 운동군이 유의한 증가를 나타내었고, 근원섬유는 유의한 차이는 없지만 증가하는 경향을 보였으며, 사립체는 대조군에 비하여 유의 한 감소를 나타내었고 근형질세망의 체적밀도는 감소하는 경향을 보였다. 사립체와 근원섬유 비는 8개월 운동군에서 유의한 차이는 없지만 대조군에 비하여 높게 나타났으며, 15개월의 운동군과 대조군 사이에서는 차이를 인정할 수 없었다. 그러나 25개월 운동군은 대조군에 비하여 유의한 차이로 감소하였다. 연령증가에 따른 사립체 내막 표면밀도와 사립체수는 대조군과 운동군 사이에는 유의한 변화는 없었다. 본 연구의 성적을 검토한 결과 젊은층(3개월군)과 중령층(10개월군)의 횐 쥐에서는 반복된 지구력운동이 심장에 미치는 역효과를 인정할 수 없었으며 젊은 층의 횐 쥐에서는 오히려 심장기능 강화를 보이는 경향이 나타났으며, 노화층(20개월군)에서 운동군에서는 스트레스로 작용하여 심장기능의 저하를 초래하였다고 생각된다.

• 한국노년학
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• 제37권1호
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• pp.237-250
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• 2017

본 연구의 목적은 넘어짐 예방 운동이 여성노인의 체력, 자세, 낙상효능감에 미치는 영향을 규명하는 것이다. 연구 대상은 65세 이상의 여성노인 30명을 대상으로 하였으며, 그 중 14명은 운동집단, 16명은 비교 집단으로 하였다. 넘어짐 예방운동 프로그램은 탄성밴드를 이용한 다방향 근력 근지구력, 파워 운동, 자세 정렬 운동과 한국무용 동작을 접목한 다방향 동적균형, 협응력 운동으로 구분하였고 총 12주간, 주 2회, 각 60분으로 진행하였다. 운동 프로그램 전후의 체력, 자세, 낙상 효능감을 측정하여 비교하였다. 연구 결과 운동 집단은 악력을 제외한 근지구력, 심폐지구력, 유연성, 평형성, 협응력에서 유의하게 증가하였고, 자세는 상체 기울기를 제외한 어깨 기울기, 견갑골 기울기, 골반 기울기, 종골각 기울기, 다리길이 차이가 유의하게 감소하였다. 낙상 효능감 점수는 운동 집단에서는 증가하고 비교 집단에서 감소하였으나, 모두 통계적으로 유의하지는 않았다. 그러므로 넘어짐 예방운동은 체력 향상과 자세교정에 효과적이라는 결론을 내릴 수 있다. 그러나 악력(근력)을 증가하는 것과 상체기울기를 교정하는 운동프로그램의 보완이 필요하다.