| ２型糖尿病患者におけるストレス状況調査 | 洲崎好香、中村登志子、熊井三治、有吉浩美 |
| 作業現場における不安全行動モニタリングのための３軸加速度センサを用いた歩行動作判別手法の検討 | 鈴木日出直、鈴木 哲、三ヶ尻健太郎、松井岳巳、川上満幸 |
| マッスルスーツの設計・開発フェーズにおける人間工学的評価 -介護作業への応用可能性- | 中西美和、山本 栄 |
| 数字検出課題と地図読み上げ課題による液晶ディスプレイの評価 | 藤掛和広、長谷川 聡、大森正子、高田宗樹、本多隆文、宮尾 克 |
| 注射器採血技術の比較 -採血経験および注射器・注射針の組み合わせの影響- | 國澤尚子、新村洋未、小川鑛一 |
A multilateral study on worker’s stress using K-F stress questionnaire was conducted with diabetic patients and healthy subjects. The ratio of responders classified under the “attention” category was significantly higher in the diabetic group (³ 40%) than in the healthy group (£ 30%) in the following 9 of 11 scales: lifestyle habit, degree of fatigue, life adjustment, depressive tendency, neurotic tendency, psychosomatic tendency, degree of loss of emotions, aggression, and degree of happiness in life. K-F stress questionnaire revealed a multilateral perspective of stress in diabetic patients including the degree, presentation and cause of stress, and patient’s coping ability. K-F stress questionnaire may therefore be useful for improving disease condition and preventing aggravation in workers with diabetes mellitus.
The number of accidents at the workplace in Japan is increasing, and this remains a serious problem in Japanese industry. It is necessary to examine the detecting method the unsafe action of the worker considered possible reason of the industrial accident. However, observing and detecting the unsafe action in real time and sequentially at the workplace are difficult. Then, the purpose of this study is to examine the detecting method the unsafe action in walking motion at the workplace using three-axis acceleration sensor. Experiments were conducted to examine the method to classify walking motion into four patterns, "Walk", "Scurrying walk", "Jogging" and "Dash", with the acceleration data acquired by this sensor. As a result, it was succeeded to detect unsafe actions “Jogging” and “Dash” by the canonical discriminant analysis. The accuracy of detection when detecting unsafe actions was improved by considering the individual character, body height and body mass, as additional factors of the canonical discriminant analysis. Moreover, we developed a prototype that discriminates the walking motion automatically and in real time applying the accomplishments of the examination in this research.
Muscle Suit is a wearable robot under development, which supports the muscles of arms. This paper provides an idea of applying Muscle Suit to nursing care as a way of relieving difficulties of both care-givers and care-takers, and describes the evaluation of that applicability from an ergonomic viewpoint. In this study, the experiments were carried out to test if the muscle tensions of care-givers’ waist, shoulders, and arms could be reduced or not when they wore Muscle Suit, in transferring care-takers from a bed to a wheelchair, and in pulling care-takers out of a bathtub. From the results, it was found 1) Muscle Suit did not fit care-givers whose arms were short, so that the muscle tensions of shoulders and arms did not sufficiently lessen, and 2) Muscle Suit could not reduce the muscle tension of waist when care-givers bent forward to hold care-takers’ body. Thus the following improvement was implemented: 1) the arm adjusters were attached to Muscle Suit for enhancing flexibility of arms, and 2) the care-givers’ position was corrected so that they could hold care-givers without bending down. A further experiment was carried out to verify the improvement, and it was confirmed that Muscle Suit surely relieved care-givers’ muscle tension in transferring and pulling care-takers.
Optically compensated bend (OCB) mode LCD panels are newly developed displays that have excellent moving picture quality. We compared the user performance of recognition for number search and moving map tasks between using OCBs and conventional model displays. The number search task was search of number “3”, in the progression. The progression scrolled from right to left. The moving map task was read out name of building and place. The map of a fictitious city scrolled from left to right. The subjects were 72 people from 20 to 73 years of age. We compared the recognition performance for number search and moving map tasks between users viewing OCBs and conventional model displays. The results suggest that OCBs are better than conventional displays for scrolling map images like those in car-navigation systems.
Textbooks use ambiguous expressions such as “pulling an inner plunger slowly” to describe the handling of syringes during blood collection, and a clear basis or method has not been reported. To determine the basis of the suitable pressure through the inner plunger during blood collection, and considering the pressure in a syringe and the time required, an experienced nurse was compared with a student nurse to evaluate how the pressure applied is changed according to the syringe–needle combination. A strain gauge type pressure transducer was developed, which was used in an experiment to process a syringe for use such that the liquid medicine is guided out of the injector and the pressure is measured. The results of the experiment revealed that there was almost no difference between the student nurse and the experienced nurse with respect to the maximum pressure in a syringe, average pressure, time required, and the amount of blood collected per unit time. However, a pressure pattern was observed in which the pressure changed with the combination of the syringe and needle used. In this study, the blood collection technique employed by a student nurse and an experienced nurse was compared and the common features and differences were determined. In addition, a new blood collection technique was proposed with an aim of introducing it in the current nursing syllabus.
