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RISS 인기검색어
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- 저자 : 홍애림(Ae Rim Hong) (검색결과 3 건)
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저항운동이 CNTF 유전자 다형성에 따른 하지의 운동단위 동원능력, 근기능 및 운동수행능력에 미치는 영향
홍애림(Ae Rim Hong),신윤아(Yun A Shin),조은효(Eun Hyo Cho) 한국사회체육학회 2014 한국사회체육학회지 Vol.0 No.57
The purpose of this study was to identify the effects of resistance exercise on motor unit recruitment, muscularstrength, muscular endurance, and exercise performance acording to CNTF gene polymorphism. Thesubjects of this study covered 8 normal homozygote GG group and 10 mutation heterozygote and homozygoteGA/AA group according to CNTF gene polymorphism. They performed resistance exercise during 8weeks. Comparative analysis of the results following conclusions were obtained by measuring body compositionand muscular function variables. Muscle mass(p<.001), fat free mass(p<.001), and body fat(p<.001)significantly improved in the GG and GA/AA groups. SUMP area o fvastus medialis during isokinetic exerciseof 180°/sec(p<.05), peak torque per body weight of knee joint extensor durin gisokinetic exercise of60°/sec(p<.001), peak torque per body weight of knee joint extensor during isokinetic exercise of 180°/sec(p<.001), reaction rate(p<.01), vertical jump(p<.001), side step(p<.001), 50m running time(p<.01), significantlyimproved in the GG and GA/AA groups. The changes opf eak torque per body weight of knee join textensor during isokinetic exercise of 60°/sec(p<.05) in the GA/AA group were significant higher than in th eGG group. In summary, resistance exercise had positive effect on motor unit recruitment, muscular endurance,and exercise performance regardless of CNTF gene polymorphism.H owever, muscle strength showed thedifference according to CNTF gene polymorphism.
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견갑골 안정화 운동이 야구선수의 견갑골 관절가동범위, 근력 및근 활성도에 미치는 영향
홍은아(Eun Ah Hong),신윤아(Yun A Shin),홍애림(Ae Rim Hong) 한국사회체육학회 2014 한국사회체육학회지 Vol.0 No.57
The purpose of this research was to study the effect of scapular stability exercise training on scapular position and scapular muscle activity in baseball player with scapular dyskinesis. The scapular stability exercise was equally applied on both dominant and non-dominant arms of subjects for 8 weeks. Shoulder Range of Motion, adduction and internal/external rotation in both dominant and non-dominant arm showed significant increases after scapular stability exercise training. Muscle strength showed significant differences among internal/external rotation, adduction and grip strength after scapular stability exercise training. Moreover, internal rotation and grip strength showed a significant interaction effect between time and group. Additionally, the muscle activity of upper trapezius muscle showed significant difference in dynamic hug, push up plus, push-up on the ball, and press-up with scapular retraction during scapular stability exercise before and after 8 weeks training. Lower trapezius muscle showed significant differences in push up plus, push-up on the ball motion, and press-up with scapular retraction movements. The muscle activity of serratus anterior muscle showed significant differences in dynamic hug and push up plus movements. Therefore, these data show that scapular stability exercise training has improved the shoulder range of motion, shoulder strength and grip strength in amateur baseball players with scapular dyskinesis despite the relatively short rehabilitation period. Especially, dynamic hug and press-up with scapular retraction were a effective movement for anterior serratus and push-up on the ball motion is a effective movement for lower trapezius.
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보행속도와 신발형태에 따른 하지의 근 활성도, 에너지 소비량 및 피로도 비교
신윤아(Shin, Yun-A),김정훈(Kim, Jung-Hoon),최은혜(Choi, Eun-Hye),홍애림(Hong, Ae-Rim) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.1
The purpose of this study was to compare energy expenditure, muscle activity and fatigue on gate speed and shoes type. Eight subjects who have no known musculoskeletal disorders performed treadmill walking at the 3.5mph and 5.5mph for each 5minutes, 0 degree with 3 types shoes(sneakers, flat shoes, and high-heeled shoes). Energy expenditure, heart rate(HR), Rating of Perceived Exertion(RPE), lactic acid, averaged IEMG and peak IEMG of eight muscles were measured during treadmill walking. The energy expenditure and HR showed significant difference in gate speed, but there did not show any significant difference in shoes type. RPE showed significant difference in shoes type. Walking with flat shoes showed higher value of RPE than with sneakers and high-heeled shoes. Lactic acid did not show any difference in gate speed and shoes types. Muscle activity showed significant difference in gate speed and were higher in 5.5mph walking. Biceps femoris in IDLS phase and vastus lateralis in TDLS and TSLS phase in flat shoes walking highly activated than in sneakers and high-heeled shoes walking. Gastrocnemius medialis in ISLS phase in sneakers and flat shoes walking highly activated than in high-heeled shoes walking. These results showed that RPE and muscle activity in flat shoes walking produced higher value than that in sneakers and high-heeled walking. Therefore, walking with flat shoes had effect on the fatigue.
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