• Title/Summary/Keyword: 기공(氣功)

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Effects of the Doin Gigong Exercise on the Shoulder-Arm Pain in Women (도인기공체조가 여성의 견비통(肩臂痛)에 미치는 효과(效果))

  • Youn, Hyoun-min;Kim, Mi-young;Kim, Yi-soon;Lim, Jin-seob
    • Journal of Acupuncture Research
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    • v.22 no.1
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    • pp.177-190
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    • 2005

  • Objective : This study intends to identify the effects of the Doin Gigong Exercise on the shoulder-arm pain in Women. Methods : The study was performed with nonequivalent control group pretest-posttest design. A total of 45 subjects were divided into 25 persons in experimental groups and 20 persons in contrastive group by convenience sampling. The data were collected by using questionnaires and measured values from June, 2004, to August, 2004. Results : The results of the study are as follows: 1. The homogeneity testing revealed that most study variables were equally distributed between experimental and control groups. 2. The first hypothesis: The experimental group who performed the Doin Gigong Exercise and who decreased on the subjective symptom scale was supported(t=10.245, p=.000). 3. The scond hypothesis : The experimental group who received Doin Gigong Exercise and who decreased on the subjective pain(VAS) was supported(t=6.816, p=.000). 4. The third hypothesis: The experimental group who received Doin Gigong Exercise and who decreased on the muscular stiffness measured techniques(UNIQUE) was supported (t=7.114, p.000). Conclusions : Based on the results described above, it is considered that the Doin Gigon Exercise is clearly effective in all an values of the 5 measured. Therefore, the Doin Gigong Exercise can be thought of as effective nursing intervention for the reduction of shoulder-arm pain in women.

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Stomatal Closure due to Water Stress in Plants (수분 스트레스에 의한 식물의 기공 닫힘)

  • Joon Sang Lee
    • Journal of Life Science
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    • v.34 no.6
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    • pp.426-433
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    • 2024

  • The environmental stress that plants are most susceptible to is water stress. Abscisic acid (ABA) is a plant hormone synthesized by plants to counteract environmental stress. The role of stomata in plants is to allow the synthesis of sucrose by absorbing CO2, which greatly affects photosynthetic activity. In addition, stomata are pathways for transpiration, which releases H2O and help establish a water potential gradient that allows plant roots to continuously absorb water and inorganic substances from the soil. Plants have a mechanism to minimize water loss by closing their stomata when exposed to water-stressed environments. The most well-studied hypothesis concerning the mechanism of stomatal closure is the response to water stress. When a plant receives sufficient water, its stomata open during the day and close at night due to its circadian rhythm. In addition, stomatal closure occurs when the concentration of CO2 in the intercellular space increases. However, the mechanism of stomatal closure due to circadian rhythm and increased CO2 concentration in the intercellular space is not well understood. When plants undergo water stress, the increased concentration of ABA in the guard cell cytoplasm induces an increase in Ca2+ concentration, resulting in cytoplasmic depolarization. As a result, the outward K+-channel of the tonoplast and the slow-type anion channels SLAC1 and SLAH3 are activated, releasing K+, Cl-, and malate2-, causing the stomata to close. Therefore, in this paper, the mechanism of stomatal closure caused by water stress was investigated.

  • https://doi.org/10.5352/JLS.2024.34.6.426 인용 PDF HTML