• Title/Summary/Keyword: 각도모음

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The Convergence Effects on the Grip Strength in Change of Shoulder Angle on Horizontal Plane (수평면에서 어깨각도변화에 따른 여대생의 악력에 대한 융복합적 연구)

  • Seo, Kyo-Chul;Park, Seung-Hwan;Cho, Mi-Suk
    • Journal of the Korea Convergence Society
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    • v.11 no.5
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    • pp.81-86
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    • 2020
  • The Purpose of this study is analysis characteristic of grasping power with each different shoulder horizontal angle. Twenty female university students with no shoulder dysfuction participated subject in three different positions of shoulder horizontal flexion with standing posture, shoulder 0° flexion, elbow 90° flexion, forearm 90° pronation, different positions is followed : shoulder 0° horizontal adduction shoulder 40° horizontal adduction, shoulder 40° horizontal abduction. The One-way repeated ANOVA test was used to determine the different in grip strength on three shoulder horizontal positions. On the average, in the hand grip strength, the horizontal neutral position is higher than horizontal adduction position with significant value. In particular, shoulder horizontal aduction was measured lowest grip strength between three positions.

Amplitude Variation Analysis for Deep Sea Seismic Data in the Ulleung Basin, East Sea (동해 울릉분지 심해 탄성파 탐사자료 진폭변화분석)

  • Cheong, Snons;Kim, Youngjun;Kim, Byungyup;Koo, NamHyung;Lee, Ho-Young
    • Geophysics and Geophysical Exploration
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    • v.16 no.3
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    • pp.163-170
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    • 2013
  • The amplitude variation with offset of seismic data can detect fluids in the sediment and resolve the petrophysical properties of hydrocarbons in the subsurface. We analyzed and described the amplitude variation in deep sea seismic data obtained from the Ulleung Basin, East Sea. By inspecting seismic CDP-offset and CDP-angle gathers which show a bright reflection event, we decided a target zone for amplitude variation analysis. From the seismic angle gather at the middle of Ulleung Basin, we recognized amplitude increase or decrease versus offset on the intercept-gradient curve. Using the product attribute and Poisson's ratio change attribute computed in terms of intercept with gradient, the top and the base of gas saturated sediments were described. The area of amplitude variation suggestive of the presence of gas saturated sediments is shown at the depth of 3 s traveltime. Anomalous features of seismic amplitude in the Ulleung Basin were classified by the crossplot of intercept and gradient. The background trend of crossplot between intercept and gradient shows an inverse proportional relation that is common for wet sediments. Anomalous amplitudes of Class III fall into the first and the third quadrants on crossplots. We inferred regional gas/water saturated area with the horizontal dimension of 150 m in the Ulleung Basin by cross-section with respect to cross-plot anomaly.

The Relationship Between Hip Adduction Angle of Ober Test According to Tibial Rotation and Length of the Iliotibial Band (정강뼈 돌림에 따른 오버테스트의 엉덩관절 모음 각도와 엉덩정강뼈 환 길이의 상관관계)

  • Park, Joo-Hee;Lee, Sa-Gyeom
    • Journal of the Korean Society of Physical Medicine
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    • v.12 no.1
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    • pp.43-49
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    • 2017
  • PURPOSE: This study investigated the relationship among hip adduction angle, tibial rotation, and ITB length during an Ober test to determine the most appropriate position for performing the test. METHODS: The study included thirty-nine asymptomatic participants (23 males, 16 females). Their hip adduction angles were measured using the Ober test during three tibial rotation conditions (internal tibial rotation, external rotation, and neutral position). ITB length was calculated by measuring the position of the patella to lateral femoral condyle using ultrasonography (patella-condyle distance; PCD). RESULTS: The relationship among hip adduction angle, tibial rotation, and ITB length was analyzed under the three conditions using the Pearson correlation. The hip adduction angle of the internal tibial rotation, the external rotation, and the neutral position were significantly related to ITB length. Moreover, the hip adduction angle measured during the internal tibial rotation had the highest correlation with ITB length among the three conditions (r=.58, p<.001). CONCLUSION: Internal tibial rotation caused by the Ober test led to increased iliotibial band (ITB) tension and a decreased adduction angle. These findings support that tibial rotation influences the flexibility of ITB. Therefore, therapists should consider the position of the internal tibial rotation when taking measurements using an Ober test.