• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
• /
• v.11 no.2
• /
• pp.1-12
• /
• 2005

The purpose of this study is compare the effects of two therapeutic processes-i) conservative Myofacial Release Technique along and ii) Transcutaneous Electrical Nerve stimuliation alone - on the increase in the range of motion(ROM) and on the decrease in patient's pain with chronic Neck pain. The subjects of the study were student with choronic neck pain in Daegu health university. Half of them (10) took conservative Myofacial Release Technique along and the others (10) took Transcutaneous Electrical Nerve stimuliation alone. I used 3D Motion analysis. The range of motion (ROM) in six areas-flexion, extension, left lateral flexion, right lateral flexion, left rotation, right rotation-to check the effectiveness of the two combinations of methods, measured pain with visual analogue scale (VAS) to see the effect on pain reduce. Assement was conducted to the groups before the treatment began and affer the four weeks treatment ended. This study shows that both groups demonstrated significant improvement in ROM increase and pain reduction. Flexion ROM increases were significant in MFR and TENS after treatment 2 weeks and 4 weeks. Extension ROM increases were significant in MFR and TENS after treatment 2 weeks. Right rotation ROM was no significant differences were found in MFR and TENS after treatment all weeks. Right lateral flexion ROM increases were significant in MFR and TENS after treatment 3 weeks. Left lateral flexion ROM increases were significant in MFR and TENS after treatment 1 weeks. But the others no significant differences were in MFR group and TENS group during 4 weeks.

• JSTS:Journal of Semiconductor Technology and Science
• /
• v.13 no.5
• /
• pp.443-450
• /
• 2013

This paper propose a new ROM data encoding method that takes into account of a sequential access pattern to reduce the power consumption in ROMs used in applications such as FIR filters that access the ROM sequentially. In the proposed encoding method, the number of 1's, of which the increment leads to the increase of the power consumption, is reduced by applying an exclusive-or (XOR) operation to a bit pair composed of two consecutive bits in a bit line. The encoded data can be decoded by using XOR gates and D flip-flops, which are usually used in digital systems for synchronization and glitch suppression. By applying the proposed encoding method to coefficient ROMs of FIR filters designed by using various design methods, we can achieve average reduction of 43.7% over the unencoded original data in the power consumption, which is larger reduction than those achieved by previous methods.

• Journal of Korean Medicine Rehabilitation
• /
• v.28 no.1
• /
• pp.167-173
• /
• 2018

The purpose of this study is to report the effect of Korean medicine rehabilitation therapies in two patients with ankle fractures who underwent Open Reduction with Internal Fixation (ORIF). Two patients with fractures who received ORIF received acupuncture, electroacupuncture, herbal medicine, and physical therapy during hospitalization. Patients were evaluated for AOFAS score, NRS, ROM, and ankle circumference. Case 1 was improved from 30 points to 62 points on the AOFAS score, from 8 to 2 on the NRS, and from 33 cm to 30 cm on the ankle perimeter. ROM was improved in all directions. Case 2 showed an AOFAS score of 64 to 90 points, frome 5 to 2 on the NRS, and from 25 cm to 23.5 cm on the ankle perimeter. ROM was improved in all directions. The results of this study suggest that the treatment of Korean medicine has a meaningful effect on improvement and rehabilitation of ankle fracture patients who have received ORIF.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2000.06a
• /
• pp.479-484
• /
• 2000

The topology optimization of electromagnetic systems is investigated and the TOPEM (Topology Optimization for Electromagnetic Systems) is developed using the finite element method (FEM). The design sensitivity equation for topology optimization is derived using the adjoint variable method. The proposed method is validated by applying it to the topology optimizations of a C-core actuator and an optical pickup actuator.

• Physical Therapy Korea
• /
• v.28 no.1
• /
• pp.65-71
• /
• 2021

Background: The hamstring is a muscle that crosses two joints, that is the hip and knee, and its flexibility is an important indicator of physical health in its role in many activities of daily living such as sitting, walking, and running. Limited range of motion (ROM) due to hamstring tightness is strongly related to back pain and malfunction of the hip joint. High-frequency diathermy (HFD) therapy is known to be effective in relaxing the muscle and increasing ROM. Objects: To investigate the effects of HFD on active knee extension ROM and hamstring tone and stiffness in participants with hamstring tightness. Methods: Twenty-four participants with hamstring tightness were recruited, and the operational definition of hamstring tightness in this study was active knee extension ROM of below 160° at 90° hip flexion in the supine position. HFD was applied to the hamstring for 15 minutes using the WINBACK device. All participants were examined before and after the intervention, and the results were analyzed using a paired t-test. The outcome measures included knee extension ROM, the viscoelastic property of the hamstring, and peak torque for passive knee extension. Results: The active knee extension ROM significantly increased from 138.8° ± 9.9° (mean ± standard deviation) to 143.9° ± 10.4° after the intervention (p < 0.05), while viscoelastic property of the hamstring significantly decreased (p < 0.05). Also, the peak torque for knee extension significantly decreased (p < 0.05). Conclusion: Application of HFD for 15 minutes to tight hamstrings immediately improves the active ROM and reduces the tone, stiffness, and elasticity of the muscle. However, further experiments are required to examine the long-term effects of HFD on hamstring tightness including pain reduction, postural improvement around the pelvis and lower extremities, and enhanced functional movement.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2000.11a
• /
• pp.771-776
• /
• 2000

Major noise source in high speed rotating CD-Rom drives arises due to the high-speed airflow produced from the upper and lower surfaces on the rotating disk. The present paper deals with the experimental approach how to identify the noise source based on the fundamental principles of aeroacoustics and to propose a reduction method of the noise source. Experimental studies were carried out in the anechoic wind tunnel with various design modifications, such as tray geometry and window size, to identify and reduce the major aerodynamic noise source and significant reductions of the noise source were obtained.

• Physical Therapy Korea
• /
• v.7 no.2
• /
• pp.66-75
• /
• 2000

A single subject experimental design (alternating treatment design) was used to compare the effects of Mulligan method and electrotherapy on the pain and limitation of range of motion in patients with frozen shoulder. In the Mulligan method sessions, the physiotherapist performed a posterior and caudal glide on the patient while the patient was performing shoulder flexion and abduction. In the electrotherapy sessions, the patient received ultrasound and interference current treatments. Mulligan method and electrotherapy were alternately performed on each patient. Pain was measured by visual analogue scale (VAS) and range of motion (ROM) was measured by modified finger ladder. The results showed that both Mulligan method and electrotherapy were effective in pain reduce and ROM increase, but Mulligan method was superior to electrotherapy in ROM increase while electrotherapy was superior to Mulligan method in pain reduce.

• PNF and Movement
• /
• v.16 no.1
• /
• pp.133-141
• /
• 2018

Purpose: This study examined the effect of proprioceptive neuromuscular facilitation (PNF) rehabilitation exercise on postoperative range of motion (ROM), pain, and function of breast cancer patients. The purpose of this study was to provide fundamental data regarding the use of PNF rehabilitation exercise for patients with breast cancer. Methods: Fourteen patients who underwent surgery due to breast cancer were randomly divided into an experimental group (n=7) that performed PNF rehabilitation exercise and a control group (n=7) that performed general rehabilitation exercise. Both groups performed the respective exercises for 30 minutes, five times a week for 4 weeks. For the measurement of ROM, the range of shoulder abduction was measured using a clinometer smartphone application. The shoulder pain and disability index (SPADI) was used to measure the level of pain and functional activity. A paired t-test was conducted to compare within-group changes before and after the PNF rehabilitation exercise. Differences between the experimental group and control group were analyzed by an independent t-test. For all tests, the level of statistical significance was set at ${\alpha}=0.05$. Results: After the exercise, there was a significant within-group change in the ROM and SPADI in both the experimental group and control group (p<0.01). There was also a significant between-group difference in the ROM and SPADI after the intervention (p<0.05). Conclusion: Rehabilitation exercise is generally applied as a treatment for patients with breast cancer after surgery and is relatively effective. The application of PNF rehabilitation exercise may be useful in such patients, considering its effects on ROM improvement, pain reduction, and functional enhancement.

• Journal of the Computational Structural Engineering Institute of Korea
• /
• v.37 no.1
• /
• pp.9-16
• /
• 2024

Using the proper orthogonal decomposition (POD) based intrusive reduced order model (ROM), the total degrees of freedom of the structural system can be significantly reduced and the critical time step satisfying the conditional stability increases in the explicit time integrations. In this study, therefore, the changes in the critical time step in the explicit time integrations are investigated using both the POD-ROM and Voronoi-cell lattice model (VCLM). The snapshot matrix is composed of the data from the structural response under the arbitrary dynamic loads such as seismic excitation, from which the POD-ROM is constructed and the predictive capability is validated. The simulated results show that the significant reduction in the computational time can be achieved using the POD-ROM with sufficiently ensuring the numerical accuracy in the seismic analyses. In addition, the validations show that the POD based intrusive ROM is compatible with the Voronoi-cell lattice based explicit dynamic analyses. In the future study, the research results will be utilized as an elemental technology for the developments of the real-time predictive models or monitoring system involving the high-fidelity simulations of structural dynamics.

• Physical Therapy Rehabilitation Science
• /
• v.11 no.4
• /
• pp.464-470
• /
• 2022

Objective: Axillary web syndrome (AWS) is a condition comprising fibrous band-like cords that appear in the axilla of patients after axillary lymph node dissection (ALND) during breast cancer surgery and result in pain and reduced mobility. The cords appearing with AWS are hardened veins or lymphatic vessels. Manual therapy and stretching are recommended for pain control and mobility improvement. Therefore, this study investigated the effect of cytoskeletal manual therapy (CMT), which is a new soft tissue mobilization technique. Design: A case report Methods: A 41-year-old woman with AWS after breast cancer surgery and ALND visited a physical therapy clinic because of shoulder pain, decreased function, and decreased mobility. The cords were palpable and pain occurred 2 weeks after surgery. CMT was performed three times per week for a total of 6 weeks. Her pain intensity, range of motion (ROM), and shoulder function were measured. Results: Measurements were performed after 2 weeks and 6 weeks of CMT and evaluated using the numeric pain rating scale (NPRS). Her pain intensity largely decreased after 2 weeks (4-point score reduction) and after 6 weeks (5-point score reduction) of CMT. After CMT, her full ROM was restored and her shoulder function was improved (7-point score reduction). Conclusions: CMT is effective for pain control, mobility improvement, and functional improvement of patients with AWS.