• Title/Summary/Keyword: Self-extension

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Effectiveness of Iliopsoas Self-Stretching on Hip Extension Angle, Gluteus Maximus Activity, and Pelvic Compensations during Prone Hip Extension in Subjects with Iliopsoas Shortness

  • Kim, Ki-Song;Jeon, In-Cheol
    • The Journal of Korean Physical Therapy
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    • v.30 no.1
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    • pp.23-28
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    • 2018

  • Purpose: This study examined the effectiveness of iliopsoas self-stretching on the hip extension angle, gluteus maximus (GM) activity, and pelvic compensated angle during prone hip extension (PHE) in subjects with iliopsoas shortness. Methods: Twenty-healthy subjects with iliopsoas shortness were recruited. Electromyography (EMG) was used to examine erector spinae (ES), multifidus (MF), GM, and biceps femoris (BF) while performing PHE. An electromagnetic tracking motion analysis device was used to measure the pelvic compensations. The pelvic compensations while performing PHE were considered to be anterior tilting and rotation. A modified Thomas test was used to monitor the hip extension angle before and after iliopsoas self-stretching. A paired t-test was used to investigate the significant difference after iliopsoas self-stretching during PHE. The level of statistical significance was set to ${\alpha}=0.05$. Results: Muscle activity of GM and hip extension angle were significantly greater after iliopsoas self-stretching compared to that before iliopsoas self-stretching during PHE (p<0.05). BF and pelvic rotation angle were significantly lower after iliopsoas self-stretching compared to that before iliopsoas self-stretching during PHE (p<0.05). The muscle activity of ES was not significantly different between PHE before and after iliopsoas self-stretching (p>0.05). Conclusion: Iliopsoas self-stretching can be effective in selectively strengthening the GM muscles with minimized pelvic compensation in subjects with iliopsoas shortness.

  • https://doi.org/10.18857/jkpt.2018.30.1.23 인용 PDF KSCI

The Influences of Dominant Brand in the Extension Product Category on Consumer Attitude About Fashion Brand Extension (패션브랜드 확장 시 확장제품군 내 지배적 브랜드가 확장제품의 호의도에 미치는 영향 - 경쟁 브랜드 간 품질차이와 소비자 자기관을 중심으로 -)

  • Kwak, Ji-Hye;Hwang, Sun-Jin
    • Journal of the Korean Society of Costume
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    • v.61 no.10
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    • pp.89-103
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    • 2011

  • The purpose of this study is to analyze the effects of dominant brand, the quality variation among brands in the extension product category and the self-construals on consumer's attitude about extension products. The experimental design consist of three-way complex factors and 226 subjects participated for the study. The results showed that when there was fashion brand extension, whether or not there was an existing dominant brand in the extension product category, the quality variation among brands in the extension product category and the types of self-construals had a significant interaction effect on their favorableness and intention to purchase the extension products. Regardless of an existing dominant brand however, the group who had an interdependent self-construal showed higher favorableness and intention to purchase the extension products when the quality variation among brands in the extension product category was lower than when it was high, whereas the group who had an independent self-construal showed no significant difference of the favorableness and intention to purchase the extension products.

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The Effect of Ambient Sadness on Hedonic Choice

  • Choi, Nak-Hwan;Oyunbileg, Tamir;Tsogtbayar, Naranzul
    • Journal of Distribution Science
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    • v.13 no.3
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    • pp.11-19
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    • 2015

  • Purpose - This study examines the strength of sadness and the belief it will last, as regards the effects of the degree of self-extension to the sad-evoking event on choice behavior related to self-control dilemmas. Research Design, Data, and Methodology - In an experiment involving high and low self-extension groups, 261 undergraduates answered self-administered questionnaires. The hypotheses were tested using AMOS 19.0 and path analysis. Results - The positive relationship between the degree of self-extension to the sad-evoking event and hedonic vs. utilitarian food choices was mediated by the belief that the sadness will last. There is a significant indirect path from the degree of self-extension (to the sad-evoking event) to the strength of the sadness, and to the belief that it will last with respect to hedonic vs. utilitarian food choices. Conclusions - These results show that beliefs about sad emotion transience depend on both the degree of self-extension to the sad-evoking event and the strength of sadness, and that the belief that sad emotions are transient makes sad people susceptible to temptation when facing self-control related dilemmas.

  • https://doi.org/10.15722/jds.13.3.201503.11 인용 PDF

Present Status and Development Direction of Agricultural Cooperatives' Extension Services (농협지도사업의 현황과 발전방향)

  • Chung, Jin-Seok
    • Journal of Agricultural Extension & Community Development
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    • v.1 no.1
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    • pp.15-28
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    • 1994

  • The ideas of Agricultural Copperatives as self-organization are to facilitate its life and development and to improve economic and social status. Its works are to improve agricultural productivity to have extension through self-help, self-reliance, cooperative. The purpose of this study presents direction of agricultural extension after U.R.

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