文献一覧: ライフサポート (雑誌)

1 0 0 0 OA 大腿骨転子下骨折におけるストレッチ運動が骨折部位に与える生体力学的影響

著者: 野口愛子笹川圭右尾田雅文塩田直史佐藤徹原利昭
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.29, no.3, pp.100-105, 2017-06-30 (Released:2019-03-29)
参考文献数: 19

The biomechanical effects of an intramedullary nail system for treating subtrochanteric fracture during bone healing is still unclear. The aim of this study was to analyze the stress conditions of a subtrochanteric fracture model implanted with an intramedullary nail system and augmentation plate under stretching exercise. Two displacement conditions assuming stretching exercise were considered. The finite element (FE) model of a subject undergoing surgery with the intramedullary nail system and augmentation plate was constructed based on post-operative computed tomography images. A 1-mm-thick callus was set in the gaps positioned at the fracture line. Bone healing was defined as a change in the Young's modulus of the callus. The orced displacements from the medial and lateral sides were applied to the distal part of the FE model, respectively. In the initial stage of bone healing, there was a noticeable difference between stress distributions of the callus under displacements from the medial and lateral sides. The compressive stress was widely distributed in the callus by the displacement from the lateral side. However, the tensional stress in the callus was increased by displacement from the medial side. Stretching exercise, such as displacement from medial direction, carries a risk of non-union.

2019-10-06 19:27:02
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1 0 0 0 OA 香辛料により引き起こされる生理反応の唾液バイオマーカーを用いた評価

著者: 中野敦行長山優山口昌樹
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.2, pp.63-67, 2013-08-10 (Released:2014-10-22)
参考文献数: 20

The purpose of this research is to demonstrate the influence of odor to physiological reaction when a subject’s experience is taken into consideration as a factor. Ten normal Japanese adult male (22.1 ± 1.1 years, mean ± SD) were enrolled. A mixture of spices including coriander, fenugreek, and cumin by the same ratio was used as the standard sample. Commercially available curry powder was used as the excellent sample. Three salivary biomarkers such as amylase, orexin, and β-endorphin were measured during baseline, inhalation and post-inhalation periods. Our results indicated that (i) change of the salivary orexin levels by inhalarion of spice was agreed with the result of subjective evaluation, (ii) the excellent sample showed more remarkable changes in physiology reaction than that of the standard sample. It was thought that a functional spice which it not only backs up delicacy, but have an effect which pulls out sensitivity may be designed.

2019-05-06 19:28:59
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1 0 0 0 OA ハイドロキシアパタイト/過酸化水素の複合材による漂白性の評価

著者: ジュリアナジャヌルデイン尾関和秀青木秀希福井康裕
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.16, no.Supplement, pp.177-178, 2004 (Released:2010-07-21)
参考文献数: 1

2019-05-06 13:29:42
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1 0 0 0 OA ストレス度に着目した作業環境評価

著者: 尾崎剛寺田隆哉武田真一泉佳伸西嶋茂宏
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.19, no.1, pp.3-8, 2007-03-30 (Released:2010-07-21)
参考文献数: 8

The stress induced during visual display terminals tasks in various environments was researched. One subject was made to do visual display terminals. The stress induced during visual display terminals tasks was evaluated using concentration of cortisol in saliva, sensory value, and work efficiency. In addition, the correlation between them was studied. New indices concerning stress and work efficiency were derived by means of the multivariate analysis. It was found that two new indices were enable to design a comfortable working environment.