• Title/Summary/Keyword: Medical Engineering

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Analysis of Meridians Energy change by Cupping Stimulation (부항자극에 대한 체표 경락.경혈의 생체에너지 변화 분석)

  • Kim, Soo-Byeong;Lee, Na-Ra;Kim, Young-Dae;Lim, Jong-Hyeon;Song, Gil-Soo;Jung, Byung-Jo;Lee, Yong-Heum
    • Korean Journal of Acupuncture
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    • v.27 no.4
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    • pp.49-57
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    • 2010

  • Objectives : The aim of this study is evaluation for significance of skin meridian-acupoints energy measurement system, and is verification of principle to measure the bio-ion charge on acupoints. Methods : To check a correlation between the MEP(Meridian Energy Potential) and bio-electric charge condition, ten acupoints(left/right BL meridian : BL13, BL15, BL18, BL20, BL23) were chosen. Based on basic theory concerning the upward trend of the bio-electric charge by cupping therapy, we measured MEP change before and after 600mmHg(80kPa) Negative pressure stimulation using cupping. Results : We could identify the correlation between MEP and the condition of bio-electric charge in acupoints. Also, we checked the balance or imbalance of left/right the MEP and unusual cases. Conclusions : We confirmed significance of proposed principle and meridian energy measurement system.

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Kinematic Study of Lower Extremity Movements in Unskilled and Expert Snowboarders During Snowboard Simulator Exercises (스노보드 시뮬레이터 운동 시 전문가와 비전문가의 하지 운동특성 분석)

  • Park, Sunwoo;Ahn, Soonjae;Kim, Jongman;Shin, Isu;Choi, Eunkyoung;Kim, Youngho
    • Journal of Biomedical Engineering Research
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    • v.36 no.4
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    • pp.109-114
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    • 2015

  • In this study, joint angles of the lower extremity and tibial acceleration and angular velocity were measured during a snowboard simulator exercises in order to evaluate the skill of snowboarders. Ten unskilled and ten expert snowboarders were recruited for the study. A three-dimensional motion capture system and two inertial sensor modules were used to acquire joint movements, acceleration and angular velocity of the lower extremities during snowboard simulator exercises. Pattern variations were calculated to assess variations in the snowboard simulator motion of unskilled and expert snowboarders. Results showed that expert snowboarders showed greater range of motion in joint angles and greater peak to peak amplitude in acceleration and angular velocity for tibia than unskilled snowboarders. The unskilled snowboarders did not show symmetrical shape(same magnitude but opposite direction) in tibial angular velocity during two edge turns in snowboard simulator exercises. The expert snowboarders showed smaller pattern variations for joint angle of lower extremity, tibial acceleration and tibial angular velocity than unskilled snowboarders. Inertial sensor data and pattern variations during the snowboard simulator exercises could be useful to evaluate the skill of snowboarders.

  • https://doi.org/10.9718/JBER.2015.36.4.109 인용 PDF KSCI

Evaluation of Gene Expression Changes of Serotonin Receptors, 5-HT3AR and 5-HT2AR as Main Stress Factors in Breast Cancer Patients

  • Hejazi, Seyed Hesam;Ahangari, Ghasem;Pornour, Majid;Deezagi, Abdolkhaleagh;Aminzadeh, Saeed;Ahmadkhaniha, Hamid Reza;Akbari, Mohamad Esmail
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.11
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    • pp.4455-4458
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    • 2014

  • Breast cancer is a serious and potentially lethal multi-factor disease among 40-50 aged women in both developed and developing countries. Also, various studies have pointed to roles of neurotransmitters like serotonin in development of cancers, through action on various types of receptors. This study was conducted to evaluate serotonin receptor (5HT2AR and 5HT3AR) genes expression in peripheral blood mononuclear cells (PBMCs) of breast cancer patients in comparison with the healthy people and in the MCF7 cell line. Peripheral blood samples were obtained from 30 patients and 30 healthy individuals. Total RNA was extracted from PBMCs and MCF-7 cells. and 5HT2AR and 5HT3AR were detected by RT-PCR techniques. Finally, serotonin receptor gene expression variation in breast cancer patients and MCF-7 cells were determined by real time-PCR. This latter indicated significant promotion in expression of 5HT3AR and 5HT2AR in PBMCs in breast cancer patients but expression of 5HT2AR in the MCF-7 cell line was significantly decreased. In conclusion, after performing complimentary tests, determine of gene expression changes in serotonin receptors (5HT2AR and 5HT3AR) may be useful as a new approach in treatment of breast cancer based on use of antagonists.

  • https://doi.org/10.7314/APJCP.2014.15.11.4455 인용 PDF KSCI