We developed a prototype of an upper extremity aids for cardiac catheterization, in consideration of the patient’s physical characteristics and safety, as well as the ease of use by the operator. We proposed a hand rest that holds the wrist with urethane foam. The dimensions for the rest device were designed using human body dimensions data and hand dimensions measurements in the inspection posture. As a result, we obtained the following design values. （1） The width of hand rest recess is 40 mm, （2） the height of hand rest recess is 20 mm, （3） the height of wrist holding part is 35 mm, and （4） the angle of front slope is 45 degrees. We verified the prototype and found that the forearm and palm formed a nearly straight line in the distal radial artery approach, and the wrist was lifted to form a dorsiflexion in the radial artery approach. It was confirmed to be sufficient for the function of the assistive device. Based on the results, we proposed a product that supports two types of catheter work with one auxiliary tool.

This study proposed a target prediction method based on the switch from ballistic eye movement to homing eye movement as a high speed and accuracy pointing method in eye-gaze input systems. The experiment was performed to verify the effectiveness of the prediction method. In this experiment, the participants were required to carry out the pointing tasks. The experimental factors were the pointing method （i.e., with or without prediction mode）, the target interval （i.e., 0.95 deg, 1.91 deg, or 2.86 deg）, and the target size （i.e., 1.11 deg, 1.59 deg, or 2.07 deg）. The dependent variables were the pointing time and the percentage correct. As a result, the effectiveness of the prediction method was confirmed from the viewpoint of both pointing speed and accuracy. The prediction method could keep a short pointing time even if the target interval were small. Besides, more than 1.59 deg target size is preferable to keep a high pointing accuracy in the prediction method.

“Workcation,” a combination of “work” and “vacation,” is attracting attention as a way of working that corresponds to a new lifestyle. Workcation combines work and leisure time, in which people work and engage in leisure activities in different environments, such as travel destinations. However, there is little scientific evidence for its effectiveness. This research conducted an experimental study of sports workcation, with the leisure activities of exercise and sports incorporated in work activities, among workers in the Tokyo metropolitan area. The study compared the changes over time in mental health outcomes （K6）, health behavior outcomes （sleeping condition, decisional balance for exercise）, and psychosocial outcomes （work engagement, psychological detachment, psychological safety） between 9 participants in the workcation group and 35 participants in the non-workcation group. The analysis revealed that the workcation participants’ scores significantly improved in some of the health behavior and psychosocial outcomes compared with their non-workcation participants. The results suggest that the workcation scheme may contribute to the health and productivity of workers.

The purpose of this study is to clarify the visual information that expert nurses selectively take in to understand the situation in mechanically ventilated patients. The experiment was conducted with eight advanced beginner nurses and eight expert nurses from a department of intensive care. They observed videos of two scenes, one at resting state and the other during changing state, reproduced with a simulated patient on a ventilator. For the analysis, seven gaze areas were set on the image. Gaze duration, gaze number, and eye movement frequency in each area were calculated, and between-group and within-group comparisons were made for each scene. The results showed that the experts gazed at patient’s face, ventilator screen, and biometric monitor longer and more frequently in both situations. In particular, they gazed at the patient’s face significantly more often than the advanced beginners during changing state, and they also significantly more eye movement between the patient’s face and ventilator screen. These results suggest that the expert nurses grasped the patient’s condition by focusing information from the patient’s face, the ventilator screen, and the monitor, and by relating the information from the patient’s face and the ventilator screen.