• Journal of the Korean Applied Science and Technology
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• v.36 no.4
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• pp.1349-1357
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• 2019

The purpose of this study was to investigate to effect of core exercise with swiss ball on sarcopenia index in agriculture older women. A total of 30 subjects(15 Ex group, 15 Con group, 65 over agriculture older woman) were participated in this study. Intervention group were assigned to performing a progressive core exercise training program for 12 weeks(2 time/week). Dependent variable were grip strength, chair stand, muscle mass, 4m gait speed, Timed up and go, and 400m walking. As a result were following. Grip strength was not significantly difference but chair stand was significantly difference in time. And muscle mass was significantly difference in groups. And 4m gait speed, Timed up and go and 400m walking were significantly difference in time. In conclusion, lower body muscle strength and short physical performance battery by muscle activating with core muscle strength training.

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.291-292
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• 2018

이 연구의 목적은 대상자의 팔과 다리를 연구자가 잡아당기고, 저항을 준 상태로 대상자가 대상자의 몸통으로 가져가는 수동적 가동범위의 운동인 '저항굴곡MS운동'이 코어를 강화시켜주는 운동임을 증명한다. 또한 본 연구의 목적은 누군가의 작은 도움이 근육강화와 유연성은 물론 관절의 기능회복에 도움을 주며 류마티스 관절염 통증완화에 미치는 영향을 알아보고자하는데 있다.

• Economic and Environmental Geology
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• v.40 no.2 s.183
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• pp.171-189
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• 2007

A study of anisotropy of magnetic susceptibility (AMS) was undertaken on Cretaceous granitic, volcanic and sedimentary rocks in the eastern region of the Yangsan fault, southeast Korea. A total of 542 independently oriented core samples collected form 77 sites were studied. The main magnetic mineral in granitic rocks is magnetite according to the magnitude of bulk susceptibility, high-temperature susceptibility variation and isothermal remanent magnetization. Both of magnetic lineation and foliation with NE-SW trends are revealed in the granitic rocks, while volcanic rocks show scattered directions and sedimentary rocks show only load foliation parallel to the bedding planes. The following evidences read to the conclusion that both magnetic fabrics in the granitic rocks have been obtained by a tectonic stress before full solidification of the magma: (i) A fully hardened granitic rocks would get hardly any fabric, (ii) Difference of the magnetic fabric trends with those of the geological structures in the granitic rocks themselves formed by brittle deformation after solidification (e.g. patterns of small-faults and joints), (iii) Kinking of biotite and undulose extinction in quartz observed under the polarizing microscope, (iv) Discordance of magnetic fabrics in the granitic rocks with those in the surrounding rocks. The NE-SW trend of the magnetic foliations suggests a NW-SE compressive stress of nearly contemporaneous with the emplacement of the granitic rocks. The compression should have caused a sinistral strike-slip movement of the Yangsan Fault considering the trend of the latter. As the age of the granitic rocks in the study area is reported to be around $60\sim70$ Ma, it is concluded that the Yangsan fault did the sinistral strike-slip movement during this time (L. Cretaceous Maastrichtian - Cenozoic Paleocene).

• Journal of Life Science
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• v.22 no.2
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• pp.184-191
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• 2012

The purpose of this study was to examine the effect of 16 weeks of resistance training on the fatigue factor, muscle soreness, oxidative stress, and myokine in elite weightlifters. A total of 10 subjects (six male, four female) participated in this study. The results were compared according to baseline, 8 weeks, and 16 weeks. Ammonia and Pi were increased through 16 weeks of resistance training, but this result was not significant. CK was significantly (p<0.05) increased at 8 weeks and 16 weeks compared to baseline, while LDH was significantly (p<0.05) increased at 8 weeks compared to baseline. The MDA of the oxidative stress factor was significantly (p<0.05) increased at 8 weeks compared to baseline and 16 weeks, and TAS of the antioxidant factor was significantly (p<0.05) increased at 8 weeks compared to baseline. The IL-15 of the myokine was significantly (p<0.05) increased at baseline compared to 8 weeks and 16 weeks. In conclusion, 16 weeks of high-intensity resistance training may have a positive effect on peripheral fatigue factors, muscle soreness, oxidative stress, and myokine in elite weightlifters.