• The Journal of Korean Physical Therapy
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• v.31 no.4
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• pp.176-183
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• 2019

Purpose: The purpose of this study was to investigate the short term effects of ASEJ (ankle strengthening with emphasis on jumping) for 3weeks on strength, mechanical properties, and balance and to compare the balance with and without HH(high-heel) condition. Methods: ASEJ (a combined exercise of squat, heel raise up, and jumping) were performed for the subjects in 11 female ankle instability young females ($21.7{\pm}2.0yrs$ Cumberland ankle instability score $19{\pm}6.5$). To investigate the effect of ASEJ, investigator used dynamometer for measuring strength, MyotonPRO for measuring mechanical properties(tone, stiffness, and elasticity of the muscles), I-Balance test for static balance, and Y-balance test for dynamic balance between the condition with and without HH condition. All data were normally distributed and analyzed using the SPSS 22.0 statistical program. Comparing pre- and post-intervention and the condition with and without HH conditions data were examined using the paired t-test. The level of significance was chosen as 0.05 for all the analyses. Results: 3wks of ASEJ would strengthen leg muscles and increasing muscle tone and stiffness in most muscles however there was decreasing muscle elasticity of gastrocnemious. In addition, the ASEJ improves the static balance for ankle instability young females and increases the dynamic balance when wearing the heels especially. Conclusions: the ASEJ could recommend to improve the strength and balance for ankle instability young females. Also, measuring the balance with HH conditions well represents the risk of ankle damage in female.

• PNF and Movement
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• v.20 no.1
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• pp.91-101
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• 2022

Purpose: The purpose of this study was to examine the effect of cycle ergometer exercise inducing movement of the affected side on knee joint function after total knee arthroplasty (TKA). Methods: The primary experiment was conducted on 19 members of the cycle ergometer exercise group to measure the muscle activity of the rectus femoris, hamstring, tibialis anterior, and gastrocnemius muscles during cycle ergometer exercise that induced the affected side's movement. In the second experiment, after receiving physiotherapeutic intervention for 30 min, the general bicycle exercise group and cycle ergometer exercise group performed the corresponding exercise for 15 min, 5 times per week, for 2 weeks. The ROM, muscle strength, pain, and balance were then measured and compared between the two groups. Results: In the results of the primary experiment, cycle ergometer exercise inducing movement of the affected side showed a significantly larger increase in the activity of leg muscles (rectusfemoris, hamstring, tibialis anterior, gastrocnemius) on the affected side than the general bicycle exercise (p <0.05). In the second experiment, the cycle ergometer exercise group showed a significantly larger increase in range of movement of affected side knee flexion and muscle strength of affected side knee flexion, knee extension, and plantarflexion than the general bicycle exercise (p <0.05). No significant between-group difference was observed in pain and balance before or after the intervention (p >0.05). Conclusion: Cycle ergometer exercise inducing movement of the affected side increases use of the muscles around the affected side knee joint after TKA more than general bicycle exercise and produces better effects for enhancing muscle strength. The application of cycle ergometer exercise inducing movement of the affected side is expected to reduce the patients' unbalanced use during the early postoperative period and help them to quickly return to normal daily life through rapid muscle strength recovery.

• The Journal of Korean Physical Therapy
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• v.10 no.1
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• pp.45-52
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• 1998

Since isokinetic concise can give an evaluation of muscle strength with great accuracy and objectively, it is widely used as the one of the important methods for evaluation of muscle performance. The purpose of this investigation was to compare values uncorrected for gravity with values corrected for gravity and to determine the effect of making this correction on knee flexors and extensors at three speeds. This investigation measured values isokinetically at $60^{\circ}/sec,\;120^{\circ}/sec,\;and\;180^{\circ}/sec$ in 14 male and 17 fermale university students. The gravity effect torque(GET) is the torque resulting from the effect of gravity on the combined weight of the leg and dynamometer arm. The GET was added to the measured extensors peak torque and subtraced from the flexors peak torque to yield gravity corrected values. Failure to consider GET greatly underetimated extensors torque and overtestimated flexors torque. Physical therapists must remember the importance of making the gravity correction in patients with reduced torque output where the gravitational torque is a greater percentage of the measured torque to ascertain correctly the relative strength of antagonists inversely affected by gravity.

• Structural Engineering and Mechanics
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• v.67 no.4
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• pp.391-401
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• 2018

Locally available Stainless Steel Wire Mesh (SSWM) bonded on a concrete surface with an epoxy resin is explored as an alternative method for the torsional strengthening of Reinforced Concrete (RC) beam in the present study. An experiment is conducted to understand the behavior of RC beams strengthened with a different configuration of SSWM wrapping subjected to pure torsion. The experimental investigation comprises of testing fourteen RC beams with cross section of $150mm{\times}150mm$ and length 1300 mm. The beams are reinforced with 4-10 mm diameter longitudinal bars and 2 leg-8 mm diameter stirrups at 150 mm c/c. Two beams without SSWM strengthening are used as control specimens and twelve beams are externally strengthened by six different SSWM wrapping configurations. The torsional moment and twist at first crack and at an ultimate stage as well as torque-twist behavior of SSWM strengthened specimens are compared with control specimens. Also the failure modes of the beams are observed. The rectangular beams strengthened with corner and diagonal strip wrapping configuration exhibited better enhancement in torsional capacity compared to other wrapping configurations. The numerical simulation of SSWM strengthened RC beam under pure torsion is carried out using finite element based software ABAQUS. Results of nonlinear finite element analysis are found in good agreement with experimental results.

• Journal of the Society of Naval Architects of Korea
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• v.41 no.6
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• pp.56-64
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• 2004

Several types of steel structures which are employed in offshore petroleum activities are constructed with tubular members. These structures are usually subjected to various types of loads such as normal functional loads and environmental loads. Furthermore, accidental loads may also act on the leg or bracing members due to supply boat collisions and objects droppings from platform decks. The extent of damage caused by these loads ranges from total collapse of the structure to small damage which may not have serious consequence at the time of accident. To make optimal design decisions regarding structural safety and economical efficiency, it is very important to be able to assess the influence of damages on the performance of damaged structural members. In the End report, a series of calculations is performed to study the effects of different parameters on the load carrying capacity of such damaged members under pure bending. And the results of analysis are compared with experiment results.

• Journal of Korean Academy of Nursing
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• v.36 no.2
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• pp.341-352
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• 2006

Purpose: This study was conducted to develop & to determine the effect of an tailored falls prevention exercise for older adults. Method: Subjects consisted of 59 older adults (experimental group : 29, control group : 30) living at nursing homes. Experimental group participated in tailored falls prevention exercise for 16 weeks(3 times a week, 50 min every session). Data were collected before the exercise, 16 weeks & 24 weeks after the beginning of exercise. Results: 1) the experimental group significantly improved the muscle strength of hip extensor & flexor, knee extensor & flexor, ankle dorsiflexor, & plantar flexor compared to the control group. 2) the experimental group significantly decreased the mean time for 10 times chair stand. 3) the experimental group significantly increased the standing time on one leg and the number of heel raise for 30 seconds compared to the control group. In addition more older adults in the experimental group completed the tandem stance & semi-tandem stance for 10 seconds than the control group. 4) The experimental group significantly decreased the mean time of 6m walk and the fall frequency compared to the control group. Conclusions: This results suggest that tailored falls prevention exercise for older adults can improve muscle strength, static & dynamic balance and decrease the fall frequency of older adults.

• Journal of Acupuncture Research
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• v.33 no.4
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• pp.191-201
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• 2016

Objectives : The purpose of this study is to report the clinical effect of Korean and Western medical treatment on a hemiplegic inpatient with central pontine myelinolysis(CPM). Methods : A patient who was diagnosed with central pontine myelinolysis(CPM) was treated with acupuncture, herbal medicine, Korean physical therapy, along with receiving continuous Western medication and rehabilitation treatment. The patient was evaluated through Manual Muscle Testing(MMT), measurement of grip strength, dysarthria, and dysuresia. The Korean and Western medical treatment was conducted for 4 weeks. Results : After the 4 weeks of Korean and Western medical treatment, MMT grade improved from 2 to 4 and grip strength improved from 6 to 13. Dysarthria and dysuresia also improved. Conclusion : According to these results, this report suggests that Korean and Western medical treatment could be effective in the treatment of central pontine myelinolysis(CPM) patients.

• Journal of Korean Academy of Nursing
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• v.35 no.5
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• pp.943-954
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• 2005

Purpose: The purpose of this study was to identity the effects of a health promotion program for rural elderly on health promotion lifestyle and health status. Method: The study was a nonequivalent control group pre-post experimental design. Data collection was performed from April 12th, 2003 to August 2nd, 2003. The subjects were selected at Mari Myun Geochang Gun in Korea. 44 elders were in the experimental group and 45 elders were in the control group. The 16-week health promotion program was given to the experimental group. Data was analyzed by descriptive statistics, $x^2$-test, t-test, and ANCOV A test with SPSS/Win 10.0 program. Result: The experimental group showed higher scores of a health promotion lifestyle and perceived health status than the control group. In addition, systolic BP, heart rate, body fat and glucose of the experimental group were lower than the control group. Waist flexibility, left hand grip power, back strength and leg strength of the experimental group were higher than the control group. However, there were no significant differences in diastolic BP, total cholesterol and right hand grip power between the two groups. Conclusion: This health promotion program for rural elderly can be recommended as an effective nursing intervention in rural communities.

• Journal of Korean Foot and Ankle Society
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• v.7 no.1
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• pp.78-82
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• 2003

Purpose: The purpose of the study is to evaluate the clinical outcomes of acute achilles tendon rupture patients treated by early mobilization after operative repair. Materials and Methods: In this retrospective study, 12 patients of acute Achilles tendon rupture were surgically treated from May 2001 to November 2002, with follow-up period of at least 6 months. There were 10 men and 2 women, and mean age was 35.9 year. The repair method was single Krackow suture technique. Two to three weeks after the operation, early ROM with removable ankle-foot orthosis(AFO) was started. We used Amer-Lindholm scale for the clinical evaluation and analyzed patient's satisfaction and subjective strength deficit. Results: We had 11 excellent results(92%), and 1 good results(8%). One-leg heel raising was possible in all patients. All the patients returned to the preinjury occupations and 7 patients(58%) reached the preoperative level of sports activities. There was no significant difference in ankle ROM and ankle plantar flexion isokinetic strength compared to contralateral side. There was, no reruptures. Conclusion: Early mobilization proved to be a well tolerated, safe, and effective means for the compliant patient.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.17 no.2
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• pp.159-168
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• 2010

Purpose: The purpose of this study was to identify the effects of 12 weeks of Tai Chi exercise on physical function, stress and depression in middle aged women with osteoarthritis. Method: The research design was a nonequivalent control group pretest-posttest design. Forty two participants were assigned to either the experimental group (21) or control group (21). Frequency, percentages, mean, standard deviations, $X^2$-test, Wilcoxon rank sum test and repeated measured ANOVA with SPSS 12.0/PC program were used to analyzed the collected data. Results: For physical function the physical fitness of the experimental group improved significantly more than the control group: Leg strength, balance, flexibility and grip strength. Difficulty of performing activity had a tendency of decrease. Stress showed a tendency of as time passed but the decrease was not significant. Depression decreased and the change was significant. Conclusion: The Tai Chi exercise was effective in improving physical function and reducing the stress and depression of middle aged women with osteoarthritis. Therefore the Tai Chi exercise could be used as a nursing intervention for osteoarthritis in middle aged women.