• 한국산학기술학회논문지
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• 제21권12호
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• pp.162-169
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• 2020

본 연구는 고등부 씨름 선수들을 대상으로 체급별 기초·전문체력의 차이를 알아보는데 목적이 있다. 측정기간은 2019년 11월 25일-12월4일이며, 총 28명의 고등부 씨름 선수(80kg이하 7명, 90kg이하 8명, 90kg이하 7명, 100kg이상 6명)를 대상으로 체급별 기초·전문 체력요인(근력, 근파워, 민첩성, 무산소성파워, 유산소능력, 유연성, 등속성근기능)을 측정하여 비교·분석하였다. 자료처리는 SPSS 23.0을 활용하여 one-way ANOVA와 Duncan을 실시하였다. 그 결과 첫째, 악력과 팔굽혀펴기, 서전트점프, 제자리멀리뛰기, 체후굴, 체전굴, 사이드스텝, 반응시간에서 체급별 차이가 나타나지 않았다. 둘째, 배근력에서 100kg 이하인 그룹이 100kg 이상인 장사급보다 유의하게 낮게 나타났으며, 윗몸일으키기와 20m 셔틀런에서 장사급보다 유의하게 높게 나타났다. 셋째, 무산소성 최고파워와 평균파워의 상대적인 값은 100kg 이하인 그룹이 100kg 이상인 장사급보다 유의하게 높게 나타났다. 넷째, 등속성근기능의 경우 허리 신전/굴곡력과 무릎 관절의 우측 신전근력, 그리고 좌우측 굴곡근력에서 체급별 차이가 없었다. 본 연구 결과에서 얻은 결론은 고등부 씨름 선수의 경우 근파워, 유연성, 민첩성 그리고, 체중당 무산소성 평균파워와 등속성 허리근력, 무릎굴근력에서 체급에 따른 차이가 없다는 것을 확인할 수 있었다.

• 대한통합의학회지
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• 제10권3호
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• pp.85-94
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• 2022

Purpose : This study aimed to investigate the effects of 12 weeks of resistance exercise on body composition, physical strength, blood lipids, and insulin. Methods : The study was conducted on 24 elderly women divided into two groups: 12 subjects in an exercise group and 12 subjects in a control group. Resistance exercise was performed for 50 minutes a day, three times a week, for the duration of 12 weeks, and body composition, physical strength, blood lipids, and insulin were measured before and after the subjects completed the program. For the statistical analysis, the mean and standard deviation (M±SD) of each variable were calculated using SPSS version 20, and a paired t-test and two-way repeated ANOVA were conducted to test for the differences before and after the resistance exercise. All significant levels were set to α=.05 as a result of the experiment. Results : Changes in body composition after the 12-week resistance exercise program did not show any significant difference based on the comparison between the groups, but when noting the values for body fat percentage and body in the control group before and after, a significant difference was shown in fat mass (p<.05). As for changes in physical fitness, significant differences appeared in flexibility, muscle strength, and stenotic force (p<.01) when the groups were compared. Regarding pre- and post-values within each group concerning flexibility within the exercise group, significant differences were shown in gender (p<.001), muscle strength (p<.05), (p<.01), muscle earth strength, equilibrium (p<.01), stenosis force, and cardiopulmonary earth force (p<.001). Also, comparisons between populations in changes in blood lipids the values before and after in each group, significant differences in glucose (p<.05) and insulin (p<.05) were shown in the exercise group. When comparing the values before and after in each population, a significant difference was shown in the control group (p<.05). Conclusion : When all the results were integrated, the 12-week resistance exercise program was found to enhance physical strength (flexibility, muscle strength, and coordination) and improve the blood sugar levels of elderly women. In particular, resistance exercise is believed to lower the prevalence of obesity, type 2 diabetes mellitus, and metabolic diseases by having a positive effect on insulin. Further studies are suggested to verify the effect on body composition and blood lipids by setting up a variety of exercise treatment methods (including subjects, exercise periods, exercise plans, and exercise intensity focuses).

• 한국엔터테인먼트산업학회논문지
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• 제13권6호
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• pp.155-163
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• 2019

이 연구는 고령자의 성별 및 연령증가와 대사증후군에 따른 생활습관 및 노인체력을 비교 분석하여, 고령자의 대사증후군 예방에 도움을 주고자 하는데 연구의 목적이 있다. 이에 G광역시 노인복지시설을 이용하는 고령자 남자 159명, 여자 233명 총 392명을 대상으로 생활습관설문조사와 노인체력측정을 실시하여 다음과 같은 결론을 얻었다. 1. 성별 및 연령별 대사증후군에 따른 생활습관비교에서 남성은 흡연, 음주 및 약물섭취, 스트레스해소에서 유의한 차가 나타났고, 여자는 음주 및 약물섭취, 식습관에서 유의한 차가 나타났다. 2. 성별 및 연령별 대사증후군에 따른 노인체력비교에서 남성은 하체근력, 상체근력에서 유의한 차가 나타났고, 여자는 하체근력, 상체근력, 하체유연성, 전신지구력에서 유의한 차가 나타났다. 이상의 결론을 종합하면, 고령자들은 건강한 삶을 위하여 운동습관과 스트레스해소를 위한 방법의 대처가 필요한 것으로 보이고, 체력향상을 위해서는 남자는 유연성, 지구력, 민첩성 및 평형성, 여자는 민첩성 및 평형성 향상을 위한 지속적 노력이 요구된다. 또한 연령이 증가할수록 체력감소를 주의하고 건강한 생활습관을 유지하기 위하여 노력하면 대사증후군 예방에도 도움이 될 것이다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1991년도 하계학술대회 논문집
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• pp.466-470
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• 1991

In this paper, full bridge inverter with IGBT is proposed. By Controlling phase angle difference between 2 arms, PWM controlled high frequency link inverter has VVVF capability. For the simplicity, flexibility and compactness of control circuit, 16 bit single chip microcontroller 8797 BH is used and its characteristic is examined through experiment.

• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2008년도 제39차 학술발표회
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• pp.103-104
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• 2008

Radio-frequency(RF) weldable polyurethane-coated fabric was prepared by knife coating of presetted and cire-finished nylon fabric using optimized coating formulation including RF-sensitive commercial polyurethane resins. The physical properties, adhesion strength, peeling strength, abrasion strength, flexibility, and hydrostatic water resistance of the prepared coated fabric were good enough to show no significant difference with regular coating. Additionally the prepared coated fabric had silky and soft touch without tackiness.

• Physical Therapy Rehabilitation Science
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• 제5권4호
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• pp.198-204
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• 2016

Objective: The purpose of this study was to examine the effects of hip joint exercise using an elastic band on dynamic balance, agility, and flexibility in healthy subjects. Design: Randomized controlled trial. Methods: Thirty-five subjects (between 19 and 23 years) were randomly allocated to two groups: hip flexion exercise (HFE) group (n=17) and the hip abduction exercise (HAE) group (n=18). The HFE group participated in flexion exercise of the hip joint using an elastic band for 50 minutes a day, three days a week for four weeks, while the HAE group participated in abduction exercises of the hip joint using an elastic band for the same period. Dynamic balance was measured using the timed up and go (TUG) test, agility was measured with the standing long jump, and flexibility was measured using the Schober's test (5 cm, 10 cm). Results: The HFE group showed significant differences in the TUG test, standing long jump, and the Schober's test (10 cm) after training (p<0.05). The HAE group showed significant differences in the TUG test, standing long jump and the Schober's test (5 cm, 10 cm) after training (p<0.05). However, there was no significant difference between the HFE group and the HAE group. Conclusions: Flexion and abduction exercises of the hip joint using and elastic band increased dynamic balance, agility, and flexibility in healthy subjects. Additional research on hip joint exercises using an elastic band for improving dynamic balance, agility and flexibility are necessary.

• 한국산학기술학회논문지
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• 제11권11호
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• pp.4367-4373
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• 2010

본 연구는 테이핑 적용방법에 따른 버스 운전기사의 요통과 근 유연성의 변화에 대하여 알아보기 위하여 실시하였다. 대상자는 창원, 마산, 부산의 버스 운전기사 중에 요통이 있는 척추기립근 테이핑 실험군과 요추부 테이핑 실험군, 대조군의 3그룹으로 각각 15명으로 나누어 테이핑 적용 전 후의 통증과 유연성을 측정 분석한 결과 다음과 같은 결론을 얻었다. 치료전 후 척추기립근 테이핑군과 요추부 테이핑군은 통증지수가 감소하였다. 치료전 후 척추 기립근 테이핑군과 요추부 테이핑군은 유연성이 증가하였다. 치료 후 대조군에 비해 실험군은 통증지수의 감소와 유연성의 증가를 보였다. 이상의 결론을 종합해 보면 테이핑 적용이 요통이 있는 환자의 통증과 유연성에 긍정적인 영향을 미치는 것을 알 수 있었고, 테이핑의 모양에 따라 요추 테이핑이 척추기립근 테이핑보다 긍정적인 영향이 있었다. 따라서 테이핑요법은 버스 운전자에게 값비싼 장비 없이도 쉽게 지속적으로 적용 가능한 치료 방법으로 사용할 수 있으리라 생각된다.

• 수산해양교육연구
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• 제26권5호
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• pp.1119-1128
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• 2014

This study was aimed at analyzing the correlation among each factor after finding out the difference between the gifted elementary students of science and general students with their parents' learning involvement, the children's intellectual curiosity and scientific creativity. The results of the study were as in the followings. Firstly, there was a significant difference in the intellectual curiosity between the gifted students and general students. Secondly, there was a significant difference in the parents' learning involvement perceived by the gifted students and general students. Thirdly, there was a significant difference in scientific curiosity of the gifted students and the general students. Forth, as the results of the correlation analysis among the talented child's father's learning involvement, the child's intellectual curiosity and scientific creativity, there was a positive correlation between the father's pursuit for appropriateness and the talented child's special curiosity, and another positive correlation between the father's encouragement for academic improvement and the child's flexibility and originality.

• Physical Therapy Rehabilitation Science
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• 제12권1호
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• pp.33-42
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• 2023

Objective: This study aims to analyze the effect of regular exercise through the combined walking-oriented aerobic and resistance exercises using EX1 in young adults. Design: Experimental one group pre and post test Methods: Participants comprised17 healthy young adults. All subjects performed a combined exercise program for 10 times using EX1. We measured quadriceps muscle thickness using ultrasound. Additionally, the hand grip strength test, and sit and reach test were performed before and after the exercise. Through paired t-test, we investigated whether there was a statistically significant difference in the measurement results after exercise program. Results: The rectus femoris muscle contraction ratio showed significant difference after exercise(P< 0.01). In the sit and reach test, flexibility showed significant difference after exercise(P < 0.01). The hand grip strength test also showed significant difference after exercise(P < 0.05). Conclusions: Healthy young adults can effectively perform various exercises commonly performed in daily life using EX1.

• 한국의류학회지
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• 제25권3호
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• pp.617-628
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• 2001

Cotton and silk fabrics dyed with brazilein(Caesalpinia Sappan), berberine (Phellodendron Amurense), and shikonin(Lithospermum Erythrorhizon) were stored in the air, in the water, and under the ground for about one year. The change of the color, the flexibility, and the breaking strength were measured at the intervals of few weeks. The results are as follows; 1. The color of the fabrics changed most extensively in the fabrics that were under the ground, then in the order of the ones that were in the water, and in the air. The color of the fabrics changed to the achromatic color over the time. 2. The flexibility change among the dyes was similar. All the fabrics became stiff under the ground and in the water over the storage time. 3. In general, cotton and silk fabrics dyed with berberine showed better strength retention than the fabrics dyed with other substances. 4. The strength retention of cotton fabrics was high in the order of the fabrics which were in the air, in the water, and under the ground. Only minuscule change occurred in the strength of the cotton fabrics. The strength of the fabrics that were in the water and under the ground decreased remarkably after 30 weeks and 20 weeks respectively. 5. The strength retention of silk fabrics was high in the order of the fabrics which were in the air, under the ground, and in the water. In the air, the strength on silk fabrics decreased rapidly after 30 weeks. In the water, the strength of silk fabrics decreased more rapidly than that of the cotton fabrics. Under the ground, the strength retention of silk was higher than that of cotton.