• Journal of the Korean Applied Science and Technology
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• v.38 no.6
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• pp.1606-1615
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• 2021

The purpose of this study is to provide basic data for injury prevention and performance improvement by developing a flywheel training program for handball players. The results of analyzing the effects of the 12-week complex flywheel training program on body composition, physical fitness factors, anaerobic power, and isokinetic muscle function are as follows. There was a significant difference between groups in push-ups. Body fat percentage and anaerobic power showed significant differences in the interaction by period. Long jump, slow jump, grip strength, back muscle strength, anaerobic average power, and isokinetic muscle function tests showed significant differences by period in the left and right flexors. Therefore, it is considered that 12-week flywheel training results can be used as the basic data for injury prevention and improvement of performance in handball players.

• Journal of Oral Medicine and Pain
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• v.10 no.1
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• pp.113-124
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• 1985

In order to observe the effect of mandibular orthopedic repositioning appliance (MORA) on body strength, the author measured back muscle strength with Digital Back Muscle DYNAMOMETER (TAKEI KIKI KOGYO Co., Tokyo, Japan) before MORA, 15 days after and 30 days after MORA in 12 men and then analysed them statistically. The subjects were weight-lifting athletes of Seoul Athletic High School without dysfunction of masticatory system. MORA was fabricated at 1.0-1.5rnm isotonically closed position (Myocentric Occlusion Position) from mandibular rest position (Myocentric Rest Position) using Myo-monitor (MyoTronics Research Inc., Seattle, Washington, USA) and-SVT C-II (Tokyo Shizaisha Inc., Tokyo, Japan). The results were as follows : 1. The mean of back muscle strength before MORA was 150 kg, that of 15 days after MORA was 165 kg (4.43% increase than before), and that of 30 days was 175 kg (10.76% increase than before). 2. There was a significant difference among back muscle strength before MORA, 15 days after and 30 days after MORA (P<0.01: repeated measures one-way ANOVA). 3. According to the result of determining mandibular position for MORA fabrication, mandibular rest position after relaxation with Myo-monitor was 3.2mm lower, 1.0mm posterior, and 0.5 mm left from centric occlusion. And the mean of the amount of lateral deviation was 0.7 mm.

• Journal of the Korean Society of Physical Medicine
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• v.2 no.1
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• pp.31-39
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• 2007

Purpose : The main purpose of this study was to investigate the influence of lower extremity strengthening on balance ability of knee osteoarthritis. Methods : The walking exercise group with modality treatment and strengthening exercise group with modality treatment. The walking exercise and strengthening for 40 minutes per day and three times a week during 6 weeks period. Short Form McGill Pain Questionnaire(SFMPQ) was used to measure patient's pain level. Patient Specific Functional Scale(PSFS) was used to measure patient's functional disability level. BPM was used to measure sway area. Global Perceived Effect Scale(GPES) was used to measure recovery or worse of patient's condition. Results : 1. SFMPQ was strengthening exercise group showed significantly decreased more than walking exercise group(p<.05). 2. PSFS was strengthening exercise group showed significantly increased more than walking exercise group(p<.05). 3. Sway area was strengthening exercise group showed significantly limited area more than walking exercise group(p<.05). 4. GPES was strengthening exercise group showed significantly increased more than walking exercise group(p<.05). Conclusion : This study will be used as exercise method of patient with osteoarhtritis.

• Journal of the Korean Society of Physical Medicine
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• v.3 no.1
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• pp.57-62
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• 2008

목적 : 이 연구의 목적은 수동신장과 능동신장이 단축된 슬괵근에 대한 유연성 회복에 미치는 영향을 알아보는데 있다. 방법 : 90-90 하지직거상 검사를 통해 슬괵근의 단축이 있는 것으로 판명된 자발적 참여자를 대상으로 정적인 자세유지를 적용한 수동신장과 대퇴사두근의 근력강화 운동을 이용한 능동신장을 적용하여 슬관절의 관절운동 범위의 변화를 측정하였다. 측정은 90-90 하지직거상 검사를 이용하여 신장 전, 후, 신장 후 60분이 경과한 뒤에 각각 측정하였다. 결과 : 두 그룹 모두 신장 전, 후, 신장 후 60분이 경과한 이후의 슬관절의 관절운동범위에 유의한 향상이 있었으나, 두 그룹 간에는 유의한 차이가 없었다. 결론 : 수동신장과 능동신장은 모두 단축된 슬괵근의 유연성 회복에 유용하게 적용될 수 있으며, 단기간의 신장 적용 후 슬괵근의 유연성 유지에도 효과적인 중재이다.

• Clinical and Experimental Pediatrics
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• v.48 no.9
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• pp.1016-1018
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• 2005

Young Simpson syndrome is a rare malformation syndrome characterized by congenital hypothyroidism, dysmorphic face, mental retardation, severe postnatal growth retardation, hypotonia and congenital heart abnormalities. In the present study, we report a case of 4-year-old girl with Young Simpson syndrome for the first case in Korea.

• The Korean Journal of Emergency Medical Services
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• v.17 no.2
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• pp.57-64
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• 2013

Purpose : The purpose of the study is to investigate the quality and relevance of back strength or chest compression which is applied by isotonic exercise of hip joint. Methods : Subjects were 37 students who participated in the BLS course and accepted the informed consent from December 7 to 8, 2012. During CPR performance, back strength was measured by the researcher. CPR was used the manikin for practical training with using PC, conducted by standard CPR for 2 minutes, Quality of chest compressions included average chest compression depth, rate, and recoil ratio. Results : Back strength (kg) is related to the chest compression depth (mm) (r =.746, p <.001). The high quality CPR is the most important factor so high quality is full chest recoil of chest compression and chest compression depth (mm) (${\beta}$=.831, p <.001). In this study, chest compression rate and recoil ration were not influenced by back muscle strength. Conclusion : It is necessary to implement the CPR program to improve physical strength and effective performance of CPR.

• The Journal of Korean Physical Therapy
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• v.11 no.2
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• pp.149-161
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• 1999

The purpose of study wan to compare the effect of balance performance in the elderly by the strengthening exercise. Thirty-one health elderly women aged 60 to 79 years participated in this study. Participants were divided into exercise(21) and control group(10). Exercise participants received strengthening exercise for 45 minutes in three times a week for 6 weeks while control subjects continued their normal activities, Exercise included resisted hip flexion, extension, abduction and adduction, knee flexion and extension, ankle dorsiflexion and plantrarflexion. All subjects were assessmented clinical test of sensory interaction and balance. one leg stance test, Berg balance test. Exercise and control subjects were teated before, midway through, and at the end of the trial. These collected data were analyzed by using oneway and repeated ANOVA, scheffe's test, 1-test and correlation. The results of this study were as fellows. 1. There were statistically significant difference in balance performance clinical teat of sensory interaction, and balance(p<.01), one leg stance test(p<.05), Berg balance test(p<.05) by the strengthening exercise. 2. There was correlation between static balance and dynamic balance(p<.01). 3. There was correlation between static balance and weight(p<.05), dynamic balance and height(p<.01), and weight(p<.01).

• The Journal of Korean Physical Therapy
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• v.10 no.2
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• pp.161-171
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• 1998

Balance can be defined as the ability to maintain the body's center of gravity within the base of support with minimal sway. Falls occur frequently in the elderly persons by the physiological change and dysfunction with age. Injuries resulting from falls include soft tissue damage and fractures of the radius, humerus, and femoral neck other consequences of falls include decreased mobility, reduced confidence, long lies (which can give rise to hypothermia, dehydration and pneumonia), and death Risk factors for falls have beau classified as intrinsic (those related to the individual) and extrinsic(those associated with environmental features), Intrinsic factors include decreased strength, visual deficits, vestibular dysfunction, and decreased vibratory sensation in the feet. Improvement of the balance related to the increased probability for fells in the elderly persons and is important for fall preventions and improvement of the living quality ef the elderly persons

• Journal of the Korean Society for Precision Engineering
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• v.33 no.12
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• pp.1031-1037
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• 2016

This study was to verify the effect of complex training programs on the postural balance and trunk muscle strength of the elderly. We recruited 40 elderly participants aged 60 to 75 years. Subjects were evaluated before, and 12 weeks after. The participants underwent complex training programs, including free exercise, elastic band and unstable plate. Exercise were performed as follows: 10 repeats in 50 minutes (0 to 4 weeks), 13 repeats in 50 minutes (5 to 8 weeks), and 15 repeats in 50 minutes (9 to 12 weeks). The training group underwent complex training, including warm up, thrice a week for twelve weeks. The control group did not perform any complex training. Results indicate that the postural balance and trunk muscle strength in the training group significantly increased. Data generated from this study could be applied to develop a complex training program to efficiently build whole body muscle strength.

• PNF and Movement
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• v.17 no.2
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• pp.303-310
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• 2019

Purpose: This study aimed to investigate the correlation between abdominal muscle strength and measures of respiratory function in stroke patients. Methods: The study participants comprised 17 (male: 12, female: 5) stroke patients hospitalized at W rehabilitation hospital in Busan, South Korea. Abdominal muscle strength was assessed using a digital manual dynamometer for 5 seconds contacting the sternal notch of the participants to bend the trunk. Respiratory function (forced vital capacity, forced expiratory volume in one second, forced expiratory volume in one second/forced vital capacity, and peak expiratory flow) was assessed using a spirometer. The collected data were analyzed using Pearson's correlation analysis, and the significance level was set 0.05. Results: A statistically significant correlation was found between abdominal muscle strength and forced vital capacity, forced expiratory volume in one second, and peak expiratory flow. However, abdominal muscle strength and forced expiratory volume in one second/forced vital capacity were not significantly correlated. Conclusion: This study demonstrated that there is a relationship between abdominal muscle strength and respiratory function. Exercise programs to strengthen the abdominal muscles are therefore necessary to improve respiratory function in stroke patients.