OKANA HIROTA

The purpose of this study was to investigate the actual situation of student athletes, focusing on concussion without loss of consciousness. The subjects were 1,063 male and female student athletes (706 males, 354 females, 3 did not answer) from five sports universities and one comprehensive university. The survey was titled “Survey on concussion without loss of consciousness during sports activities” and incorporated “Step 3：Symptoms that you notice yourself” of CRT5. The survey results showed that the “rate of concussion sufferers who visited a medical institution” was 1.32% (14 people) out of 1,060 people in total. On the other hand, the incidence of “concussion without loss of consciousness” as defined in this study was 17.42% (123 people/706 people) of males, 24.0% (85 people/354 people) of females, and 19.6% (208 people/1,060 people) overall. By sport, the majority of experienced players were rugby football players. It also became clear that “headache” accounted for more than half of the symptoms, and sports coaches need to remember that “headache” is a “warning sign of the onset of a concussion.”

本研究の目的は大学生を対象に握力と手指把持力を測定し、最大筋力発揮時の、握力と手指把持力の関係を検討することであった。握力の測定結果と比較し親指と示指、中指、環指、小指から発揮された把持力の測定結果は力の筋力発揮に個人差が現れやすく、親指と示指、中指、環指、小指から発揮された個々の把持力より個々の把持力を合計した値の変動係数が小さかった。加えて、握力の最大値より手指把持力4試行の最大筋力の和が小さかった。握力と手指把持力の間に相関関係はほとんど見られなかった。