• 대한물리의학회지
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• 제2권2호
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• pp.195-203
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• 2007

Purpose : The purpose of this study was to evaluate the effects of local vibration on knee joints on ability of postural control. Methods : The subjects(50) were divided into control group(25) and vibration group(25). Vibration group was given vibration on knee joint for 10 minutes and control group was given resting for 10 minutes. All subjects of each group were tested on MFT balance tester board for 30 seconds and MFT Balance Test English 1.7 was used to measure ability of postural control pre and post test. Results : 1. Laterality didn't have statistically significant difference pre and post test in both groups(p<0.05). 2. In the control group Body stability didn't have significant difference pre and post test(p>0.05), but had significant difference in the vibration group(p<0.05). 3. At assessment Movement of COG, sector2 in the control group and sector 1, 5 in the experimental group had significant difference pre and post test(p<0.05). Conclusion : From this result vibration on knee have an effect on Body stability. Therefore, the vibration will be effective in treatment of patients who have disability of postural control.

• PNF and Movement
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• 제18권2호
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• pp.233-244
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• 2020

Purpose: The study investigated pain and falls as psychological factors in Total Knee Replacement patients and examined the relationship between these factors. Methods: Ninety-six total knee replacement patients aged 69.31±7.01 (male: 21, female: 75) participated in the study. Post-surgery pain was assessed on a visual analog scale, and fall risk scores were evaluated on fall fear and fall efficacy scales. Other psychological factors assessed included national anxiety and trail anxiety, fear prevention, Beck depression score, and psychological health measures. The data were analyzed using SPSS version 22.0. Results: A statistically significant correlation was found between pain before surgery and FES fall fear score before surgery (p < 0.05). A statistically significant correlation was found between pain after surgery and PWBS fall fear score after surgery (p < 0.05). A statistically significant correlation was found between state anxiety and PWBS, Trail anxiety (p < 0.05). A statistically significant correlation was also found between trail anxiety and BDI, PWBS (p < 0.05). State anxiety and fear avoidance before surgery were found to affect trail anxiety, and pain before surgery and fall fear score before surgery were found to affect FES. In addition, PWBS was found to affect BDI. Conclusion: The study confirms that increased pain in Total Knee Replacement patients can be a risk factor for falls. In addition, fall fears increase fear avoidance and cause psychological deterioration. This suggests that efforts should be made to reduce pain and to manage psychological factors.

• PNF and Movement
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• 제18권3호
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• pp.323-331
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• 2020

Purpose: This study was conducted to determine the effects of motion taping on muscle activity and the WOMAC in a rehabilitation exercise program for elderly women with knee joint osteoarthritis. Methods: The subjects were 28 elderly women aged over 65 years with knee joint osteoarthritis. The subjects were divided into two groups: one experimental and one control group. During the study period, a total of 26 patients completed the experiment, with one drop each from the experimental group and control group. The experimental group applied motion taping and conducted a rehabilitation exercise program. The control group experienced a rehabilitation exercise program without motion taping. The rehabilitation exercise program consisted of warm-up exercises, maximum isometric exercises, the range of motion of the joints, and leg stretching exercises. The intervention was conducted three times a week for six weeks. To investigate the effects of the intervention, muscle activity and the WOMAC were measured. The WOMAC is a tool that can be used to evaluate the pain, stiffness, and physical function of osteoarthritis patients; it has 29 items in three areas. Results: The change in muscle activity according to the intervention showed a statistically significant increase in both the experimental group and control group. The WOMAC also showed statistically significant changes in terms of pain, stiffness, and physical function in both the experimental and control groups. The experimental group showed a greater functional improvement than the control group. Conclusion: For older women with osteoarthritis of the knee, a rehabilitation exercise program is a good intervention. When motion-taping is applied, it is considered to be an intervention program that can be expected to have a better effect on knee joint osteoarthritis.

• 대한통합의학회지
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• 제11권3호
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• pp.91-98
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• 2023

Purpose : The purpose of this study was to investigate the effect of the posture holding band on muscle activity of the rectus femoris, medial vastus, and vastus lateralis muscles and weight distribution during squat exercise. Methods : This study was conducted with 30 healthy adult men and women in their 20s, and all subjects were randomly assigned to the experimental group and the control group. Squat exercise was performed for 6 weeks. The experimental group received squat exercise while wearing a posture holding band, and the control group applied without wearing a posture holding band. Muscle activity of the quadriceps femoris (rectus femoris, vastus medialis, and vastus lateralis) and weight distribution (knee flexion 0 °, 30 °, 60 °, and 90 °) was measured. Results : According to the results of this study, all three muscles showed a main effect on time and group, and a significant interaction was shown only in the vastus lateralis. In addition, the value of the weight distribution difference according to the knee flexion angle did not show a main effect according to time and group at 30 ° of knee flexion, but showed an interaction. Conclusion : It was confirmed that the application of the posture holding band during squat exercise increased the muscle activity of the quadriceps muscle, and showed greater changes in the vastus lateralis muscle. In addition, it was confirmed that the difference in weight distribution was reduced in the knee flexion, and in particular, a greater change was shown in reducing the difference in weight distribution in the knee flexion of 30 °. Therefore, it is considered that the effect of the exercise can be further enhanced if the unnecessary movement of the trunk is controlled by using equipment such as a posture holding band during squat exercise.

• PNF and Movement
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• 제22권2호
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• pp.213-222
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• 2024

Purpose: The purpose of this study was to evaluate the effects of early body-weight-supported treadmill training on quadriceps strength, knee pain, and arthrogenic muscle inhibition (AMI) after knee surgery. Methods: Sixteen adults were selected. Seven patients in the experimental group performed body-weight-supported treadmill training, and nine patients in the control group performed general therapeutic exercise programs. Both groups received 20 minutes of neuromuscular electrical stimulation and 20 minutes of exercise therapy for two weeks. We measured quadriceps strength, visual analogue scale, and modified AMI classification grade before and after the intervention. Data were analyzed using the Mann-Whitney U test and Wilcoxon signed-rank test. Results: Within the experimental group, significant differences were observed in quadriceps strength, visual analogue scale, and modified AMI classification grade. Significant differences were observed between the before- and after-intervention groups in quadriceps strength and visual analogue scale. However, no significant differences were found in the modified AMI classification. Conclusion: The results of this study indicate that early body-weight-supported treadmill training may be an effective intervention for improving strength, reducing pain, and addressing arthrogenic muscle inhibition following knee surgery.

• 한국전문물리치료학회지
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• 제19권3호
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• pp.20-30
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• 2012

The purpose of this study was to determine the effect of ankle joint mobilization with movement (MWM) on the range of motion (ROM) in the ankle, on the muscle strength of lower extremities, and on spatiotemporal gait parameters in chronic hemiplegic patients. Fifteen subjects with chronic stroke were divided into two groups: an experimental group (8 subjects) and a control group (7 subjects). Both groups attended two or three sessions of physical therapy each week. The experimental group also attended additional MWM training sessions three times a week for five weeks. For both groups, the ROM of the ankle, the muscle strength of the lower extremities, and the spatiotemporal gait parameters in paretic limbs were evaluated before and after the training period. The results showed that the experimental group experienced more significant increases than did the control group in terms of passive (6.10%) and active (21.96%) ROM of the ankle, gait velocity (12.96%), and peak torque, of the knee flexor (81.39%), the knee extensor (24.88%), and the ankle plantar flexor (41.75%)(p<.05). These results suggest that MWM training in patients with chronic stroke may be beneficial in increasing ROM in the ankle, muscle strength in the lower extremities, and gait speed.

• 대한의용생체공학회:의공학회지
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• 제36권5호
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• pp.228-234
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• 2015

The balance ability significantly decreased in the elderly because of deterioration of the neural musculature regulatory mechanisms. Several studies have investigated methods of improving balance ability using real-time systems, but it is limited by the expensive test equipment and specialized resources. Recently, Kinect system based on depth data has been applied to address these limitations. Little information about accuracy/inaccuracy of Kinect system is, however, available, particular in motion analysis for evaluation of effectiveness in rehabilitation training. Therefore, the aim of the current study was to evaluate accuracy/inaccuracy of Kinect system in specific rotational movement for balance rehabilitation training. Six healthy male adults with no musculoskeletal disorder were selected to participate in the experiment. Movements of the participants were induced by controlling the base plane of the balance training equipment in directions of AP (anterior-posterior), ML (medial-lateral), right and left diagonal direction. The dynamic motions of the subjects were measured using two Kinect depth sensor systems and a three-dimensional motion capture system with eight infrared cameras for comparative evaluation. The results of the error rate for hip and knee joint alteration of Kinect system comparison with infrared camera based motion capture system occurred smaller values in the ML direction (Hip joint: 10.9~57.3%, Knee joint: 26.0~74.8%). Therefore, the accuracy of Kinect system for measuring balance rehabilitation traning could improve by using adapted algorithm which is based on hip joint movement in medial-lateral direction.

• 한국운동역학회지
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• 제19권4호
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• pp.697-705
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• 2009

본 연구의 목적은 여성고령자들에 있어 젊은 여성과 비교해 Sit-to-Walk동작 시 낙상의 간접적인 요인이 될 수 있는 역학적 에너지를 비교분석 하는 것이다. 여성고령자 그룹 10명과 젊은 여성 그룹 10명이 본 연구를 위해서 참여하였고, 적외선 카메라와 두 대의 지면반력기를 통하여 역학적 에너지를 분석한 결과는 다음과 같다. 근 파워는 각속도와 근 모멘트의 변화에 따라 고관절의 무릎 및 고관절의 신전 국면시 두 그룹 모두 낮은 음의 일률을 보였고, 특히 고령자그룹에 더 낯은 음의 일률을 보였다. 역학적 에너지 일량에 있어서도 무릎관절과 고관절은 무릎 및 고관절 신전 국면에서 두 그룹 모두 음의 일량을 보였고, 특히 고관절은 전체국면에서 고령자 그룹에 있어 더 낮은 음의 일량을 보였다. 이러한 결과는 STW동작 시 고관절 대퇴근의 약화로 인한 에너지 손실(dissipation)은 고령자들의 낙상의 위험요소를 간접적으로 보여주는 것이라 여겨진다.

• 한국운동역학회지
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• 제14권1호
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• pp.145-160
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• 2004

The purposes of this study to provide quantitative data in necessary to advance techniques kinematic analysis of Cucarachas which is an action of Rumba. Then, this study is performed on 5 female players who have won within the third prize at a national athletic meeting. When whole foot reached to floor, Displacement of right-left hip joint (until $E1{\sim}E3$ average moved 15.15cm)is found at right-left direction since the hip joint is turned to right back. On the other side, large displacement is shown because Rumba Cucaracha Movement is expressed by maximum shift of hip joint to right and left direction. Displacement of right hip joint(E3$57.40{\pm}7.46$) is found in front and in rear direction since hip joint is moved in rear and in front to turn the hip joint. It may be stated that this is ideal displacement expressed by movement of whole body with artistic poise and presentation because role of hip joint is very important in technical and artistic side. Angle of right shoulder joint E2($105.44{\pm}9.64$) is got wider. It may be stated that player shifts up and abduct elbow joint to right since center of gravity of player is exceedingly shifted to right in this motion of Cucarachas. On the other hand, since this motion is abducted right elbow and shrunk external abdominal oblique to him center of body to left front of hip joint, the angle becomes narrow. It is shown that angle of knee in right knee joint E4($75.44{\pm}2.61$) is large since right leg and hip joint is turned by foot using reaction of ground and so center of body is shifted to left. Large angle of ankle E4($134.40{\pm}10.50$) in Cucaracha Movement is shown by the action of twist force using narrow part of foot and compression force against ground with adduction speed of arm. The various kinematic analyses associated with motions of dance sport have not been sufficiently peformed so far, and thus a number of research projects for dance sport should be proposed and performed to be continuous.

• 대한정형도수물리치료학회지
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• 제15권2호
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• pp.63-68
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• 2009

Purpose : The purpose of this study was to investigate the effect of tensor fasciae latae length on the rotation of pelvis during one leg stance. Methods : 41 healthy adults participated in this study. The movement of the pelvis and trunk was measured using 3-dimensional motion analyzer, during one leg stance. The movement of the pelvis and trunk was collected lateral shift, rotation, side bending, and flexion-extension. Tensor fasciae latae length of subjects was measured in sidelying positon with neutral position of hip joint and flexion $90^{\circ}$ of knee. Also, the range of motion of hip exteral and interal rotaion were measured in prone position wih lexion $90^{\circ}$ of knee. The subjects were separated 2 groups that more pelvic rotation group(n=15) and less pelvic rotation group(n=15) according to the degree of pelvic rotation. Results : The more pelvic rotation group was showed significantly higher in the ROM of hip external rotation than less pelvic rotation group(p<0.05). The difference of tensor fasciae latae length not showed significant difference between groups. During one leg stance, The movement of the shifting and flexion-extension of trunk and pelvis were not showed significant difference. But the side bending and the rotation of pelvis and trunk showed significant difference between groups. Conclusion : The difference of tensor fasciae latae length not showed significantly in more pelvic rotation group and less pelvic rotation group. But, this study suggests that the pelvis instability brings the instability of the trunk during one leg stance.