• 한국운동역학회지
• /
• 제27권4호
• /
• pp.247-255
• /
• 2017

Objective: The purpose of this study was to investigate the maximum core muscle activation angle according to core-strengthening exercises. Method: Twenty-six young female football players (age: $17.84{\pm}0.80years$, height: $163.08{\pm}5.25cm$, weight: $54.96{\pm}7.41kg$) registered in the Korea Football Association from D High School located in Seoul were the subjects of this research. An electromyogram (Noraxon, USA) was used for monitoring the maximum core muscle contraction activity. Results: The angle for the maximum core muscle strength per core exercise and muscle was the smallest for the upper rectus abdominis in the windshield wiper exercise. The angle of the vastus medialis was significantly the largest. The range of angles at which the maximum strength was observed for each core exercise were as follows: 1) abdominal flutter kicks ($11{\sim}40^{\circ}$), 2) leg raises ($21{\sim}34^{\circ}$), 3) scissors ($45{\sim}66^{\circ}$), 4) knee to elbow sit-ups ($42{\sim}64^{\circ}$), 5) reverse crunches ($9{\sim}40^{\circ}$), 6) butt-ups ($24{\sim}32^{\circ}$), 7) V sit-ups ($5{\sim}24^{\circ}$), 8) windshield wipers ($11{\sim}20^{\circ}$), 9) bird dog ($11{\sim}18^{\circ}$), and 10) raised leg plank ($38{\sim}50^{\circ}$). Conclusion: Four kinds of motion could be classified according to the range of angles at which the core muscles were maximally activated. The first group involves the range of motion that gives the maximum muscle strength when the lower extremity and ground angle was between $5^{\circ}$ and $24^{\circ}$, such as the V sit-ups, windshield wipers, and bird dog. The second group comprised the flutter kicks and reverse crunches at an angle between $9^{\circ}$ and $40^{\circ}$. The third group comprised the leg raise and butt-up exercises at an angle between $21^{\circ}$ and $34^{\circ}$. The fourth group included the scissors, knee to elbow sit-ups, and raised leg plank at an angle between $38^{\circ}$ and $66^{\circ}$. These results may be useful as basic data for core movement and core muscle training according to the purpose of exercise.

• 웰빙융합연구
• /
• 제5권1호
• /
• pp.31-35
• /
• 2022

Purpose: This study was conducted to investigate the effects of change in the unstable support surface location during bridge exercise on the muscle activity of erector spinae and gluteus maximus. Research design, data and methodology: 12 healthy participants aged 23.32 ±1.02 were measured muscle activities of erector spinae and gluteus maximus during bridge exercise and compared between the exercise conditions; unstable support surface located on upper back and feet during bridge exercise. Paired t-test was performed to identify whether there was a significant difference in the muscle activities between the exercise conditions. Results: As a result, even though higher levels of the averaged muscle activities of both erector spinae and gluteus maximus during exercise in unstable support surface located on feet than upper back were observed, no significant differences were found. Conclusions: The change of unstable support surface location during bridge exercise for low back pain rehabilitation would be more appropriate to be used to increase levels of tension of muscle activities and train fine motor control rather than to strengthening muscle strength.

• 한국도서관정보학회지
• /
• 제53권1호
• /
• pp.31-54
• /
• 2022

본 연구는 2021년도 여름방학 중에 사서교사(1급) 자격연수를 운영한 K대학교 교육연수원의 사례를 바탕으로, 자격연수가 어떻게 구성 및 운영되는지 교육과정에 대한 실태를 살펴보는데 목적이 있었다. 연구 결과 사서교사(1급) 자격연수에는 초등학교에서 50명(남성 4명, 여성 46명), 중학교에서 24명(남성 4명, 여성 20명), 고등학교에서 37명(남성 5명, 여성 32명), 총 111명의 사서교사들이 참여했다. 또한 자격연수의 교육과정은 '학습자 힘 기르기'의 영역 및 '사서교사 역할 성명서'의 직무 범위에 부합되는 핵심역량과 교과목들로 구성되어 있었으며, 자격연수에 참여했던 사서교사 111명의 만족도는 평균 5점 만점에 4.76점으로 나타났다. 따라서 전반적으로 만족도가 높은 편이이었으나, 가장 낮거나 평균보다 낮았던 부분에 대해 제언하였다.

• 한국응용과학기술학회지
• /
• 제37권1호
• /
• pp.17-27
• /
• 2020

본 연구는 6주간의 고강도 복합 훈련 프로그램을 통해 카누 선수의 심폐기능(Cardiorespiratory Function), 체간 등속성 근력(Isokinetic Trunk Strength) 그리고 무산소성 파워(Anaerobic Power)에 미치는 영향을 확인하는데 있다. 이를 위해 고등학교 카누 선수 9명을 대상으로 고강도 복합 훈련 프로그램을 적용하였으며, 고강도 훈련 프로그램은 주 2회의 유산소 운동(화, 목), 주 3회의 무산소 운동(월, 수, 금) 그리고 주 5회의 유연성 운동을 실시하였다. 고강도 복합 훈련 프로그램의 핵심은 무산소성 훈련 프로그램으로 기존 1RM의 퍼센트(%)를 나누어 훈련하던 방식과는 달리 횟수에 대한 100%의 중량을 가지고 하는 훈련이며, 유산소성 운동과 짐볼운동은 보조적인 개념으로 실시하였다. 연구결과, 고강도 복합 훈련 프로그램에 따른 신체구성에서 신장과 근육량은 통계적으로 의한 차이가 있었으며, 체중, 체지방율, BMI는 통계적으로 유의한 차이는 없는 것으로 나타났다. 심폐기능의 경우, 최대산소섭취량과 총 운동시간은 통계적으로 유의한 차이가 있는 것으로 나타났다. 체간 등속성 근력의 경우, 각속도 30°/sec에서는 Flexors 운동시 Peak Torque 항목에서만 통계적으로 유의한 차이가 있는 것으로 나타났다. 각속도 120°/sec에서는 Extensors 운동시 Total Work 항목에서만 통계적으로 유의한 차이가 있는 것으로 나타났다. 무산소성 파워의 경우, Peak Power, Average Power, Peak Drop의 모든 항목에서 통계적으로 유의한 차이가 없는 것으로 나타났다. 이상의 결과를 종합해보면 심폐기능에서는 유의한 개선효과가 있었지만 체간 등속성 근력과 무산소성 파워 항목에서 증가하는 경향은 있었지만 통계적인 차이는 없는 것으로 나타났다. 결론적으로 선수 개개인의 근력과 파워가 개선되는 경향이 나타난 것을 고려하면 훈련기간을 6주 이상으로 구성하고 사례수가 보강된다면 체계적인 결과를 얻을 수 있을 것으로 생각된다. 본 연구에서 적용한 고강도 복합 훈련 프로그램은 카누 선수들의 경기력 향상 효과를 기대할 수 있는 훈련 프로그램으로 적용될 수 있을 것으로 판단된다.

• 식품보건융합연구
• /
• 제6권2호
• /
• pp.23-26
• /
• 2020

Active and therapeutic sport recovery is becoming a popular and important component in approving performance for pro and recreational athletes alike. It is also helping in the realm of injury prevention. In the search of finding modalities that are widely effective, natural, and safe, acupuncture is a viable and cost-effective treatment for helping athletes achieve this goal. More direct related research is needed, but testimonials from pro athletes and the body of research that currently exists provides powerful evidence on acupunctures ability to help with enhancing recovery. Specializing in acupuncture and exercise science, Chris integrates acupuncture into musculoskeletal rehabilitation therapy or fitness training for pain modulation, speedy recovery, and enhanced performance. Clients can choose to focus on one-on-one corrective exercise therapy, manual and massage therapy, or acupuncture. However, for best results, Chris recommends all three. Other modalities that he uses in therapy are acu-taping, herbal therapy, nutrition supplementation, cupping, guasha, and stretching techniques. The corrective exercise component is one-on-one body balancing management, focusing on strength and conditioning, post physical rehab - exercise therapy, integrative sport specific exercise, weight loss, core strengthening, dynamic lumbar stabilization, active recovery techniques, and myo-fascial release techniques. The acupuncture component focuses on sport injuries, myofascial pain, peripheral neuropathy, arthritis, facial rejuvenation, stress, smoking cessation, addiction detoxification program, weight management, sport recovery and performance.

• 대한정형도수물리치료학회지
• /
• 제26권1호
• /
• pp.19-26
• /
• 2020

Background: The purpose of this study was compare and analyze the flexibility and dynamic balance in adolescents with idiopathic scoliosis and provide scientific basis for effectively treating idiopathic scoliosis. Methods: The subjects of this study were 20 members of adolescences. To measure the flexibility of the spine, a left buckling instrument was used, and it was measured using a modified sit and reach test. They were randomly divided into core exercise with sling program group (n=10) and general exercise program group (n=10), each consisting 50 minutes each for 4 times per week for 8 weeks. Results: The results of the study are as follows. First, Both groups were increased statistically significantly in spinal flexibility but no significant differences have been found between the two groups after 8 weeks of exercise. Second, Both groups were increased statistically significantly in balance ability of dynamic foot pleasure ratio but no significant differences have been found between the two groups after 8 weeks of exercise. Conclusion: In summarizing the results of this study, sling exercise with core exercise was effective in the decrease of flexibility and stability than general scoliosis exercise in adolescents with idiopathic scoliosis. It is also believed to be applicable to spinal diseases caused by muscular weakness since it is effective in strengthening core muscle strength.

• 대한물리치료과학회지
• /
• 제25권3호
• /
• pp.17-24
• /
• 2018

Purpose: The purpose of this study was to investigate the effect of whole body vibration combined breathing resistance on lung capacity and respiratory muscle and to suggest a mediation method for improvement of respiratory function and lung function in the future. Methods: This study was a preliminary study design of two groups of 54 healthy young adults who were randomly assigned to an experimental group (n=27) with core exercise combined with respiratory resistance and whole body vibration and a control group with respiratory resistance and core exercise (n=27). All interventions consisted of 6 core exercises every 40 seconds and rest for 20 seconds. To compare the effects of intervention, we measured spirometry and respiratory muscle strength. Results: Both the experimental group and the control group showed a significant increase in Forced vital capacity (FVC) and Maximum voluntary ventilation (MVV) (p<.05). However, FEV1 and FEV1% were significantly increase only in the experimental group (p<.05). FVC, FEV1%, Maximum Inspiratory Pressure (MIP), Maximum Expiratory Pressure (MEP) showed more significant increase in the experimental group than the control group. Conclusion: These findings indicate that whole-body vibration combined breathing resistance is an effective intervention for people, with FVC, FEV1%, MIP, MEP increase.

• 대한물리의학회지
• /
• 제15권4호
• /
• pp.145-153
• /
• 2020

PURPOSE: This study compares the effects of HUBER rehabilitation and general rehabilitation treatment on the coordination, balance, and walking ability of stroke patients. METHODS: This study enrolled 38 randomized stroke patients, and data was collected for 6 weeks. All participants were randomly assigned to either the experimental group (n = 19) or control group (n = 19). The experimental group were administered Huber rehabilitation and general rehabilitation treatment. The control group was given only general rehabilitation treatment. Both treatments were conducted for 30 minutes during each training session, 3 training sessions per week, for 6 weeks. The coordination, balance, and walking ability were evaluated before and after the intervention, to compare the intergroup and intragroup changes. RESULTS: Change in the right LOS (limit of stability) (p < .001) and forward LOS (p < .02) following intervention were significantly greater in the experimental group than in the control group, but no significant group difference was observed between left LOS (p > .1) and backward LOS (p > .2). Alterations in coordination (p < .02) and TUG (p <. 05) were significantly greater after intervention in the experimental group than in the control group. CONCLUSION: These findings suggest that HUBER rehabilitation is effective in improving the coordination, balance, and walking ability in stroke patients. To strengthen and validate the results of this study, future studies related to HUBER rehabilitation are required.

• 대한통합의학회지
• /
• 제9권3호
• /
• pp.111-124
• /
• 2021

Purpose : The purpose of this study is to evaluate whether physical ability is improved by body stabilization, develop training methods to improve physical fitness factors suitable for body conditions, and provide future management and exercise materials to improve Taekwondo athletes' performance, after conducting the Body stabilization exercise (BSE) program on 22 elementary school Taekwondo athletes for 10 weeks to strengthen core muscles and evaluating Visual response speed test (VRST), Functional movement screen (FMS), Y-Balance test (YBT) and Vital capacity (VC). Methods : In order to examine the impact of the BSE program on Taekwondo athletes' VRST, FMS, YBT and VC this study conducted individual evaluations on all subjects, including VRST, FMS, YBT and VC before applying the programs, and compared exercise effects before and after the program, before and after exercise by a certain period. Results : After exercising, strength and quickness were improved significantly and reaction time was significantly shortened (p<.001). The total score of FMS was improved from 10.86±1.17 before to 11.68±0.99 after exercising, was statistically significant (p=.014). YBT was significantly improved from 91.11±4.84 before to 95.68±5.15 after exercising (p<.001). VC improved was statistically significant (p<.001). Conclusion : In conclusion, the BSE athletic program is expected to help Taekwondo athletes perform well by preventing and reducing injuries through the improvement of muscular strength, strength, speed, agility, step, kick, balance, flexibility, full body endurance and the combination of technical abilities.

• The Journal of Korean Physical Therapy
• /
• 제29권3호
• /
• pp.128-134
• /
• 2017

Purpose: The purpose of this study is to investigate the effects of healthy persons performing a plank exercise with hip abduction and use of sling on trunk muscle activity. Methods: Twenty-three subjects participated in this study. Muscle activities of the multifidus, rectus abdominis, external oblique and internal oblique were assessed with electromyography (EMG) while the subjects performed 6 various types of plank exercises in random order. Results: There was a significant difference in multifidus and internal oblique on the supported side and the multifidus, external oblique, and internal oblique on the elevated side (p<0.05), and differences in plank methods were significantly higher in the multifidus, rectus abdominis, external oblique, internal oblique of the supported side and the rectus abdominis, external oblique and internal oblique on the elevated side (p<0.05). In addition, post-hoc analysis of the various plank methods showed that muscle activity was significantly higher during the general plank exercise compared with the knee-supported-in-sling plank exercises (p<0.05), and was significantly higher with the ankle-supported-in-sling plank exercises compared with the general plank exercise. Conclusion: There was greater trunk muscle activity with plank exercises performed with the ankle-supported-in-sling and hip abduction plank exercises compared with the general or knee-supported-in-sling plank exercises. Through this study, various plank exercises have been discovered that can be selected at different intensities for core muscle training purposes based on trunk muscle strength.