Relationship between the increase in cerebral blood flow and the attentional function during exercise / 体力科学

Although there are a number of reported cases of increased cerebral blood flow during exercise, there are no reports on the relation between changes of blood flow during exercise and attentional function. The purpose of this study is to clarify the relation between changes of blood flow during exercise with AT intensity and attentional function, using near-infrared spectral analysis. The subjects were 10 healthy males. The research protocol was to conduct steady load exercise. We randomly conducted two invention trials: 1) an exercise/task trial in which a trail making test (TMT) was performed as an attentional assignment during steady load exercise, and 2) a rest/task trial in which TMT was performed during rest as a control. As a result, we observed the following: increase of oxy-Hb in the prefrontal cortex during AT exercise, the significant shortening of TMT during exercise from 69.1±10.2 seconds to63.2±7.2seconds, and, with further control, that the more oxy-Hb rises, the more TMT time is shortened. From these results, it is suggested that 10 minutes of exercise would improve attentional function, and furthermore, there is a possibility that increased cerebral blood flow may be involved with the improvement of attentional function.

Advantages of the Central Supply System of Medical Instruments / 日本農村医学会雑誌

Recently, varieties of medical instruments have been developed and improved upon rapidly along with the progress of medicine. However, the advent of many types of new devices sometimes creates confusion on the clinical scene. The central supply system of medical instruments may be effective in reducing medical troubles and accidents, through centralized maintenance, check and repair stuff education and enlightenment.<BR>In our hospital, the central supply room of medical instruments was established in April 1993 to try to reduce the costs and troubles. We have somehow managed our system by trail and error for eight years. Recently, many people who have any relationship with us have come to rate our system highly. We will try to make a further effort to establish a better supply system.