<div class=""abs_img""><img src=""disp_template_path/JRM/abst-image/00260004/12.jpg"" width=""300"" />Nonlinear-structure stretcher
During ambulance or stretcher transport, subjects experience ...vibration causing discomfort or pain. Measures must thus be taken against such vibration. The purpose of this study was to develop stretchers that minimize vibration during transport. This study first details vibration size, direction, and frequency through vibration measurement experiment, resulting in a nonlinear stretcher using a vibration isolator. Stretcher performance was then evaluated and confirmed RMS and acceleration PSD.
When playing a game of handball, to win, the shot success rate is one of the important elements. To get a score, the shooter must observe the movement of the keeper's hands and feet, and his stance. ...Players who have a high shot success rate often aim at the shot course nearby the keeper's physical location because of this. But, one needs very high ability to shoot the course correctly as judged by him in an instant. So players need to practice this, but there is a danger for the keeper's safety because of this difficulty. The ball could hit the keeper 's face or other vital part causing injury. In this research, making and using a Handball Keeper System for the ability to shoot the course nearby the keeper 's physical location was considered. However, with this system, the players can practice this even when there is not a keeper. And, there is no danger of the keeper's injury. To make sure of effect of a keeper system on players, the experiment was conducted with two groups. One is group of players who use a keeper system and another is not. The result of significance test showed the user's shot success rate and the rate of shot nearby a goalkeeper were increased effectively by using a keeper system. And also by the result of questionnaire, the conscious of players who used this system were changed to concentrate on the keeper's physical location when they try to success the shot with a high rate.
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