Résumé
The purpose of this study was to prove the hypothesis that the effect of strength training is memorized and reinforced by retraining. Untrained university-age men participated in this training program. The retraining leg was subjected to 5 weeks of isometric training, 17 weeks of detraining and 5 weeks of retraining in knee extension. The contralateral training leg was subjected to 5 weeks of isometric training during the same period as the retraining phase of the retraining leg. Maximal isometric torque of knee extension increased after the 5-week training and remained at the trained level during the 17week detraining period. Torque gain by retraining of the retraining leg was 2.6 times greater than that of the contralateral training leg. These changes in isometric torque corres-ponded with changes in iEMG of the vastus lateralis. The cross-sectional area of the quadriceps femoris muscle did not change with training. Results support the hypothesis that the effect of strength training is memorized and reinforced by retraining. In addition, results show that these adaptations would be explained by recruitment and rate coding of motor units.
Résumé
A 37-year-old man who had received graft replacement of right iliac artery 20 years ago was admitted to our hospital because of massive intestinal hemorrhage. CT scan and angiogram showed a pseudoaneurysm originating from a graft anastomosis and the case was diagnosed as aorto-enteric fistula. Emergency operation was performed. Following aneurysmectomy and direct closure of split anastomosed portions, colostomy was performed in descending colon. Femorofemoral artery bypass was made as an extra-anatomical bypass. Fortunately, he has been successfully treated and is doing well now. The most important point for the rescue of cases of aneurysm-enteric fistula is to consider such cases of intestinal hemorrhage after the arterial graft replacement in the abdomen.