抄録
We devised an evaluation of trunk function and used it in our clinic and for medical checkups. This study examined the utility of the new evaluation of trunk function. The evaluation of trunk function consists of four items: 1) translation balance test, 2) arm fixation test, 3) hip abduction in flexion test, 4) lower limbs fixation test. Tests 1) and 2) evaluate the fixed power of the arms-trunk mainly on the shoulder blade, and tests 3) and 4) evaluate the fixed power of the lower limbs-trunk mainly on the pelvic girdle. We studied 39 throwing shoulder injuries that received attention at our clinic from April, 2008 to March, 2010 (Subject 1). We studied 25 senior high school baseball players entering school in April, 2008. We conducted medical checkups three times a year, seven times in total until April, 2010 (Subject 2). We considered whether throwing shoulder injuries and a trunk usability test were related. In our clinic, there was no baseball player with negative evaluation of trunk function at the first examination. Pain vanished in 33 cases, and 75% of those had improved trunk function on evaluation. In the medical checkups, there was no player with a negative evaluation of trunk function who had throwing shoulder injury. Evaluation of trunk function was good among the players in whom there was no pain at all, 86%. These results suggest that our new evaluation of trunk function provides guidelines for evaluation of shoulders with throwing disorders.
