著者

松本 佳昭 森 信彰 三田尻 涼 江 鐘偉

出版者

The Society of Life Support Engineering

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.22, no.3, pp.105-111, 2010 (Released:2012-10-16)

参考文献数

22

被引用文献数

3 12

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To prevent various lifestyle-caused diseases, mental health care in daily life is one of the most important issues in recent years. This paper proposes quantitative analysis method of mental stress using heart rate variability (HRV). Concretely speaking, we proposed the geometric figure analytical method of HRV in consideration for respiration sinus arrhythmia (RSA). Then mental stress is quantitative evaluated by analyzing the characteristic of its plots. Experiments were repeated 51 times on 3 healthy male volunteers. The proposed method was confirmed efficiently, because of the measurement time is about half and the measurement dispersion is decreased in comparison with the conventional analysis methods.

著者

生田 幸士

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.20, no.Supplement, pp.11-14, 2008 (Released:2010-07-21)

著者

桜井 理紗

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.24, no.1, pp.22-22, 2012 (Released:2014-01-27)

参考文献数

2

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.9, no.Supplement, pp.102-105, 1997 (Released:2010-07-21)

著者

松尾 政輝

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.28, no.1, pp.25, 2016

著者

朴 武田

出版者

The Society of Life Support Engineering

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.12, no.4, pp.119-124, 2000-12-30 (Released:2010-07-21)

参考文献数

5

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Non-Invasive Blood Pressure Monitor(NIBP)is widely used in the clinical fields, as one of the most important vital sign monitors. Monitoring of blood pressure will suffer from the body movement of patients by spontaneity or medical treatments. Further more these devices utilize pulsation caused by the heartbeats cannot work in case of weak heartbeats. This study has given an answer to the above problems by using 6, 000 data taken from NIBP devices in the clinical fields.

著者

瀬野 晋一郎 加藤 幸子 秋元 恵実 小林 博子 嶋津 秀昭

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.17, no.Supplement, pp.29-29, 2005 (Released:2010-07-21)

参考文献数

1

著者

宮 兆〓(吉ヘン吉) 大島 哲平 宮野 秀市 増田 信之 関根 正樹 伊藤 智義

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.24, no.4, pp.194-200, 2012 (Released:2014-01-27)

参考文献数

18

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We developed a prototype of simple virtual reality (VR) system as a support tool to overcome fear of heights. The system consists of one personal computer, one projector and a hemisphere dome screen with the diameter of 1 m. It is a dome-screen type VR system because it makes little burden both to a medical doctor (or a counselor) and to a client. The dome screen is a low-cost type made milky-white plastic. We adopted rear projection using only one projector and could get an image with an effective field of vision. We can use a picture or a movie took from a personal-type digital camera. As for the correction of image distortion, we made the software tool originally. Therefore, the running cost is also low and the operation is easy. As the result of evaluation experiment, we confirmed that the system made a feeling of devotion with little sense of incongruity. It seems to show the possibility that the simple VR system can be utilized as a medical service tool of the spread type.

著者

西藤 聖二 佐藤 政宏 舞野 大輔 田中 正吾

出版者

The Society of Life Support Engineering

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.22, no.3, pp.96-104, 2010 (Released:2012-10-16)

参考文献数

16

被引用文献数

3 3

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本論文では,精神作業と音環境が脳電気活動に与える影響を評価するために,不快音/快音を聴きながら精神作業課題を遂行したときの脳波の振幅変化を調べた.α波の振幅は音刺激(5KHz 単音とパッヘルベルのカノン)を聴いたり,精神作業課題(暗算と記憶)遂行したり,あるいは両方を行ったときに,安静時のα波の振幅に比べて約15∼20%減少した.そのような振幅抑制は,α波の時間的位相揺らぎの15∼30%の増加と対応していた.特に,低域周波数のα波の振幅の低減割合は,組合せストレス,すなわち暗算と不快な5KHz音の条件下で25%に達するが,暗算単独で行ったときや5KHz単音単独で聴取した場合には15.20%の低減率に留まる.一方,β波とγ波の振幅はほとんどのストレス条件下で有意な変化を示さなかった.この結果は,音と精神ストレスが低域α波を抑制しており,ストレス計測において考慮されるべき点であることを示している.

著者

田所 克俊 鈴木 桂輔

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.26, no.3, pp.89-99, 2014-09-15 (Released:2016-03-07)

参考文献数

15

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The mechanism for the activation of cerebral function through singing and listening music was investigated. In this research, the effect of singing and listening to music on cerebral function and the effects on autonomic nerve systems were clarified. The fluctuation of oxyHb was analyzed for quantifying the active state of cerebral function. The CSI to investigate the activation level of sympathetic nerve and the CVI to investigate the activation level of parasympathetic nerve were analyzed for quantifying the fluctuation of autonomic nerve systems. The result of experiment showed that the oxyHb increased during the music tasks and the oxyHb decreased during the rest. Additionally, it was shown that the sympathetic nerve became predominant in singing music. In addition to this, we proposed a new evaluation index quantifying the active status of cerebral function using the absolute value of oxyHb and the differential value of oxyHb. By use of this evaluation index, the effectiveness of relaxation with listening music and relaxation without music on the active status of cerebral function were investigated. In these investigations, the effectiveness of music therapy was increased when the parasympathetic nerve became predominant efficiently

著者

車谷 春香

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.27, no.1, pp.13, 2015-03-31 (Released:2016-11-18)

参考文献数

3

著者

晝河 政希

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.28, no.1, pp.22, 2016-03-31 (Released:2020-04-02)

参考文献数

2

著者

諏訪 陽祐

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.26, no.4, pp.152, 2014

著者

黒子 美咲

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.27, no.4, pp.154, 2015

著者

佐久間 菜月 二瓶 美里 鎌田 実

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.29, no.4, pp.120-127, 2017-12-31 (Released:2019-03-29)

参考文献数

20

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The prevention of injuries during parasports is important for safety and to enjoy sports. However, in wheelchair rugby, there are few systematic studies on trauma precautions because of the differences in the physical function level of parasports athletes and the small number of players overall. We have proposed defensive motions to minimize injuries to the front and sides by analyzing videos of falls, a simulation using a multi-body model, and evaluating the injury to the head and upper limbs. By classifying the range of motion and muscular strength into three categories, the difference in disabilities was expressed using a multi-body model. The index, ULIC, was proposed to evaluate injuries to the upper limbs. It is calculated from the maximum moment value of the bones, using a simplified cylindrical model. The head injury criteria (HIC) and ULIC made it possible to evaluate the extent of injury by classification into one of four categories, depending on the presence or absence of injuries in the above regions. Furthermore, defensive actions not resulting in serious injuries and matching the difference between the degree of disability and fall, by predicting the potential injury to the head and upper limbs using the indexes, were proposed.

著者

尾田 雅文 二宮 敬一 原 利昭

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.25, no.4, pp.124-129, 2013-12-30 (Released:2015-02-09)

参考文献数

10

被引用文献数

1 2

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The number of patients with chronic respiratory deficiency, such as Chronic Obstructive Pulmonary Disease or Sleep Apnea syndrome, is increasing. For patients with comparatively serious symptoms, the Non-invasive Positive Pressure Ventilation (NPPV) may be prescribed. However, pressure necrosis or anaclisis could affect treatment by occurring at the contact area of nasal mask. In response to this problem, the construction of a simulation environment can be applied. This personal simulation model was created based on these measurement results and the interpolation results using the Free-form-deformation technique. A fundamental numerical analysis was performed, and Von Mises stress distribution was shown when the NPPV nasal mask made contact with the face. It is shown that the maximum stress can be decreased by 19.4% compared with the cases of standard mask. In conclusion, by using this system, the shape of a nasal mask suitable for each patient can be determined.

著者

田中 喜秀 脇田 慎一

出版者

The Society of Life Support Engineering

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.22, no.3, pp.90-95, 2010 (Released:2012-10-16)

参考文献数

28

被引用文献数

4 3

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Over the past several decades, numerous research studies have performed to establish biological mechanism of stress response, the role of levels of psychological stress and stress-related biomarkers, and the effect of stress relief supplements. However, most stress experiments to date have been focused on acute psychological stress. Increasing attention has been recently given to the evaluation and control/prevention of chronic psychological stress. In this paper, frontiers of psychological stress research in pharmaceutical fields of immunology, cell and molecular biology, biochemistry, and pharmacology are introduced. Neurobiological mechanisms underlying chronic psychological stress and prospective stress-realted biomarkers for chronic stress are reviewed. Furtheremore, particular attention has been briefly given to the saliva collection, stress testing, and data analysis.

著者

鈴木 桂輔 宮本 康弘

出版者

The Society of Life Support Engineering

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.23, no.4, pp.152-158, 2011 (Released:2013-02-14)

参考文献数

12

被引用文献数

1

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The effectiveness on the muscle expansion and the mechanism of "slow training" which puts a slow burden on muscles in slow operation were investigated. In this research, the frequency analysis of electromyography and investigation of the density of oxygenated hemoglobin in muscles were conducted to clarify the characteristics of the slow training which are different from the conventional training with high burden on muscles, in terms of the activation level of the fast-twitch fiber in muscles of legs. In these investigations, it was clarified that the cumulative value of electromyography during the training is relatively high, and the effectiveness of muscular expansion by the slow training is remarkable, like the conventional training. In addition to this, it was clarified that the fast twitch fiber was activated during the slow training because the power level of high frequency in the FFT analysis of electromyography is relatively high and the oxygenated hemoglobin is relatively low in muscles.

著者

小倉 明子

出版者

ライフサポート学会

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.12, no.2, pp.58-59, 2000-06-25 (Released:2010-07-21)

参考文献数

2

著者

佐藤 玲美 川澄 正史

出版者

The Society of Life Support Engineering

雑誌

ライフサポート (ISSN:13419455)

巻号頁・発行日

vol.20, no.Supplement, pp.73, 2008 (Released:2010-07-21)

参考文献数

1