• 생명과학회지
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• 제27권9호
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• pp.1078-1085
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• 2017

활성산소란 세포에 손상을 가하는 모든 종류의 변형된 산소를 의미하며, 활성산소 생성의 증가는 세포 내의 산화적 스트레스를 유발하여 심혈관 질환, 암, 당뇨, 근위축 등 각종 질병의 원인이 된다. 그러나 적정 수준의 활성산소는 세포의 성장 및 발달에 중요한 역할을 담당하는 것으로 보고되어 있으며, 골격근에서의 활성산소는 근기능과 대사에 필수적인 역할을 담당한다. 규칙적인 운동은 건강상 다양한 이점을 가져다주지만, 과도한 운동은 골격근을 비롯한 다양한 체내 조직에서 활성산소의 생성을 증가시키며, 고농도의 활성산소 생성은 세포 손상을 일으키는 것으로 보고되고 있다. 따라서 운동에 의한 활성산소의 생성 증가와 그에 따른 분자적 기전은 운동이 주는 건강상의 많은 이점들을 이해하는데 있어 중요한 기전으로 받아들여지고 있다. 최근 운동 강도나 형태에 따른 활성산소의 생성 수준과 근육 관련 유전자 발현 및 대사 관련 연구에 있어 활성산소의 역할에 관한 연구들이 활발히 이루어지고 있지만 심도 있는 기전적 연구와 이해는 부족한 실정이다. 따라서 본 총설에서는 운동에 의한 활성산소 생성 기전과 그에 따른 역할에 대한 선행 연구들을 살펴보고, 운동에 의한 인슐린 신호체계의 활성 및 그에 따른 수명 조절에 있어 NADPH 산화효소의 역할에 대해서도 살펴보았다.

• 융합정보논문지
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• 제11권3호
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• pp.250-260
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• 2021

본 연구는 투척 선수의 하지 훈련 자세를 이용한 전신진동 운동 훈련 시 근육 변화와 대칭 지수를 살펴보는데 목적이 있다. 20 대 10 명(남성 6명 여성 4명, 나이:24.60±0.92세, 신장:177.90±7.40cm, 체중:92.90±22.97kg)의 투척 선수를 대상으로 스쿼트, 카프 레이즈, 런지 동작으로 하지 훈련 자세를 이용한 전신진동 운동 훈련을 실시하였다. 하지 관절 근육(대퇴이두근, 비복근 외측, 비복근 내측, 대퇴직근, 전경골근, 외측광근, 내측광근) 부위를 Tensiomyography(TMG) 변인 Time Delay(Td), Time Contraction(Tc), Time Sustain(Ts), Time Relaxation(Tr), Displacement Maximumal(Dm)을 통해 측정하여 근 활성도, 근 피로도, 좌우 대칭을 Wilconxon의 순위 검사로 비교하였고, 이때 유의수준은 α= .05로 분석하였다. 연구결과는 Td에서 왼쪽 RF, VL, 오른쪽 VM(p<.05), Tc에서는 VM(p<.05), Ts 에서는 GM(p<.05), Tr 에서는 왼쪽 RF, 오른쪽 TA(p<.05)에서 변화를 보였다. 따라서 스쿼트, 카프 레이즈, 런지 동작의 전신진동 운동 훈련이 근 수축 변화가 있는 효과적인 운동임을 입증되었고, 좌·우 근육 대칭으로 코어의 안정성이 확보되었다. 이로 인해 전신진동운동은 재활훈련 긍정적인 영향을 미칠 것이고, 경기력 향상을 도모할 수 있을 것으로 판단된다.

• 대한의료기공학회지
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• 제20권1호
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• pp.118-147
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• 2020

Objective : The purpose of this study is to understand trends of pelvic correction therapy in Korea and to assist research activities on pelvic correction therapy. Also, this study selected and presented indicators for measuring pelvic slope to help ensure consistent studies with uniform indicators in future studies related to pelvic correction. Methods : The following keywords "골반", "골반 교정", "골반 변위" "Pelvic correction" were searched on three specialized search sites (RISS, NAI, DBpia). Trends in pelvic correction therapy were analyzed through the selected researches suitable among these searched researches in an overview format. Results : 1. A total of 7,806 studies were searched and a total of 268 studies were finally selected. 2. Studies began in 1977 and have been actively studied until recently, with 35 studies in 2017 being the most recent trend since 2000. 3. In the results according to the Main Field of Research, the 'Arts and Kinesiology'(113, 42.16%) and 'Medicine and Pharmacy'(103, 38.43%) were the most in order. To the Middle Field, the 'Kinesiology was the largest with 96(35.82%) studies. 4. In the results according to the study design, 'Pre-Post Test(PPT)' was the largest with 107 studies. 5. In the results according to the Intervention, 'Exercise' was the largest with 165 studies, of which 'Pilates' and 'Yoga' in 'Training' was the largest. 6. Among the evaluation method, the 'Pelvic Index' was used 146 times, followed by 'Spinal Alignment (99)', 'Other Joints (93)', and 'Kinetic Specialized Measurement Test (56)'. 7. Among the evaluation methods, the pelvic slope measurement indicators were PT (58), PH (48), Pelvic Torsion (40), Iliac Crest (38), ASIS-PSIS distance/angle (27), and Pelvic Width (I.W., I.L., S.W) (25) in order. 8. The journals that published the most researches were KJSS(Korean Alliance For Health, Physical Education, Recreation, And Dance;9), and JKPT(Korean Physical Therapy;9). Among the University, the Graduate School of Silla University published the most papers (12). 9. The author who published the most studies were Seungjin Park(3), the co-authors were Hoseong Lee, Gideok Park, Seongsu Bae(3), and the Thesis-Director Gyeongok Lee(7). Conclusions : 1. Studies on pelvic correction treatment continue to increase every year. 2. The main academic field of pelvic correction is 'Sports', 'Physical Therapy', and 'Medical Science'. 3. The most chosen research design method in the study on pelvic correction treatment was 'Pre-Post Test(PPT)', primarily as an intermediary, Pilates and yoga during exercise therapy, and then Chiropractic during handcraft were used as multiple frequencies. 4. Among the various measurement method indicators of pelvic correction previously used, multiple frequency was taken up in the order of PT, PH, Pelvic Torsion, iliac crest, ASIS-PSIS distance/angle, and pelvic width (I.W.,I.L.,S.W). Typically, measurements through "ASIS-PSIS angle" are recommended and are considered as the most rational in clinical trials.

• 한국운동역학회지
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• 제26권2호
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• pp.191-195
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• 2016

Purpose: The purpose of this study was to analyze the immediate effects of ankle restriction with an elastic band on ground reaction force during a golf swing. Method: There were five subjects who were teaching pros with an average golf score of 75. A force platform (9281B, Switzerland) was used. The independent variable was the presence of an elastic band. The dependent variables were three-dimensional ground reaction forces to analyze the transfer of momentum with the timing, control and coordination of the three forces. A paired t-test within subject repeated measure design was used via an SPSS 20.0. Results: Wearing an elastic band around one's ankles significantly makes shorter time differences between the moment of cross anterior / posterior forces and vertical force and median value of anterior / posterior forces during the backswing, between medial and lateral maximum and anterior / posterior force from the top of the back swing to the mid down swing, and creates an anterior / posterior maximum force. Conclusion: Wearing an elastic band around one's ankles affects control and coordination between three dimensional forces, and anterior force power according to each phase of the golf swing.

• 한국운동역학회지
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• 제26권2호
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• pp.213-220
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• 2016

Objective: The purpose of this study was to investigate the effect of an 8-week ProBody massage program on body alignment and plantar pressure balance in middle-aged men with musculoskeletal diseases. Method: The subjects of this study were 20 middle-aged men with musculoskeletal diseases in B Metropolitan City who participated in an 8-week ProBody massage program conducted twice a week. Physical characteristics (height, weight, and body mass index), body alignment, and plantar pressure were assessed before and after the experiment. Results: The 20 middle-aged men with musculoskeletal diseases who underwent the ProBody massage program showed positive changes in physiological characteristics, body alignment, and plantar pressure balance. Conclusion: Consequently, the 8-week ProBody massage program was suggested to be effective for improving and preventing postural imbalance in middle-aged men with musculoskeletal diseases. The ProBody massage program could also be utilized to improve the body alignment and plantar pressure balance in middle-aged women with musculoskeletal diseases.

• 한국운동역학회지
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• 제27권3호
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• pp.205-210
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• 2017

Objective: The aim of the study was to investigate the age-related ability of dynamic balance recovery through perturbation response during standing. Method: Six older and 6 younger adults participated in this study. External perturbation during standing as pulling force applied at the pelvic level in the anterior direction was provided to the subject. The margin of stability was quantified as a measure of postural stability or dynamic balance recovery, and using principal component analysis (PCA), the regularity of the margin of stability (MoS) was calculated. Results: Our results showed that in the older adult group, 60.99% and 28.63% of the total variance were captured using the first and second principal components (PCs), respectively, and in the younger adult group, 81.95% and 10.71% of the total variance were captured using the first and second PCs, respectively. Conclusion: Ninety percent of the total variance captured using the first two PCs indicates that the older adults had decreased regularity of the MoS than the younger adults. Thus, the results of the present study suggest that aging is associated with non-regularity of dynamic postural stability.

• 한국전문물리치료학회지
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• 제21권1호
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• pp.63-69
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• 2014

Cross knee curl-up is an ideal variation of abdominal curl up exercise to strengthen abdominal musculature without excessive lumbar flexion which can increase the loads on the disc and ligaments. In addition, slowly forced expiration can facilitate the activation of the abdominal musculature. The purpose of this study was to determine the effects of slowly forced expiration on activity of abdominal muscles, such as rectus abdominis (RA), external oblique (EO), and transverse abdominis/internal oblique (TrA/IO), while cross knee curl-up. Eleven young and healthy subjects (6 males and 5 females) participated. All subjects performed the cross knee curl-up slowly forced expiration and natural breathing. Paired t-test was performed in normalized electromyogram (EMG) muscle activity of the bilateral RA, EO, and TrA/IO to compare the differences between the cross curl-up with slowly forced expiration and natural breathing. Statistical significance was set at .05. There were no significant differences in normalized EMG muscle activity of the bilateral RA, EO, and TrA/IO between the cross curl-up with slowly forced expiration and natural breathing. The finding of this study designates that slowly forced expiration does not induce increasing activity of abdominal muscle in cross knee curl-up; hence, learning step of breathing control might not be necessary to strengthen abdominal muscle in cross knee curl-up.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2004년도 추계학술대회
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• pp.498-503
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• 2004

A fundamental function of court sport shoes has been considered as the protection of human feet from unexpected injuries. But, recently its role for improving the playing competency is being regarded as a more important function. In connection with this situation, intensive efforts are being world-widely forced on the development of court sport shoes proving the excellent playing competency, by taking kinesiology and biomechanics into consideration. However, the success of this goal depends definitely on the shoes design based upon the reliable evaluation of shoes functional parts. This paper addresses the application of finite element method to the evaluation of landing impact force of court sport shoes. In order to reflect the coupling effect between leg and shoes accurately and effectively, we construct a fully coupled shoes-leg FEM model which does not rely on the independent experimental data any more. Through the numerical experiments, we assess the reliability of the coupled FEM model by comparing with the experimental results and investigate the landing impact characteristics of court sport shoes.

• 한국의류산업학회지
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• 제11권4호
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• pp.583-591
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• 2009

The purpose of this study was to examine the sportswear purchase decision factors and brand preference of college students. The subjects in this study were 614 college students who were selected by cluster random sampling from Daegu and North Gyeongsang Province. The collected data were analyzed by crosstab analysis, and the findings of the study were as follows: If a sportswear company has college students as a target market, first, the company needs to consider design and utility. Second, the company needs to expand internet sale while maintaining a strategy for centering on speciality shop and department store as for a sale of sportswear. Third, the college students themselves have a right of choice according to purchasing sportswear. Thus, a distribution company requires a direct marketing strategy targeting college students. Fourth, simple design of adding a fashion trend is needed. Fifth, the sportswear company needs to expand production and sale in jumpers and trousers based on T-shirts. Sixth, color in sportswear needs to be composed of design based on gray or black color. In order for a sportswear company to be adjusted to the global market environment here after, it requires an effort to continuously grasp consumers' trend and to apply new design and color. Also, the company will be able to be equipped with competitive edge by producing diversely functional products that are demanded by the segmented market.

• 한국생활과학회지
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• 제16권6호
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• pp.1153-1168
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• 2007

The purpose of this study is to investigate if and how much a family art therapy can influence a runaway middle school girl's self esteem, communication with parents, and family relations. Study subjects are a middle school girl (called S) and her parents, receiving a total of 13 sessions of art therapy from January 3 to March 28 of 2007, held at P-kindergarten located in Kyungbuk province, with each session of 90-120 minutes. Research instruments adopted for the study are a comparison between pre-test and post-test regarding S's self-esteem and a measure of dynamic relationship between S and her parents determined by KFD (Kinetic Family Drawing) in pre- and post-tests. The results are as follows. First, family art therapy shows its effect on the runaway middle school girls' self-esteem. Second, family art therapy proves to be effective on child-parent communication. Third, family art therapy displays positive influence on family relations.