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The purpose of this study was to investigate the effect of the BMD and BMM for L spin AP, Femoral-neck and seurm Ca, seurm P after 12 weeks snowboard exercise. The total sample was 7 students of university male, consisted of 7 students for inexperienced snowboard group. The results were as follows : 1. Each time BMD for L spine AP was't shown to significantly but decrease after 6 weeks exercise more then pre-exercise and after 12 weeks exercise more then 6 weeks 2. Each time BMB for Femoral-neck was't shown to significantly but decrease after 6 weeks exercise more then pre-exercise, some increase after 12 weeks exercise more then 6 weeks exercise. 3. Each time BMD for seurm Ca was't shown to significantly but decrease after 6 weeks exercise more then pre-exercise, some increase after 12 weeks exercise more then 6 weeks exercise. 4. Each time BMD for seurm P was't shown to significantly but decrease after 6 weeks exercise more then pre-exercise, some increase after 12 weeks exercise more then 6 weeks exercise. From this study, 12 weeks snowboard exercise was shown to effect about BMD and BMM for L spine AP, Femoral-neck and seum Ca, seurm P in 7 students of university male for inexperienced snowboard but was't shown to significantly
Surgery for a mid-esophageal lesion requires an open thoracotomy, But authors resected out a stenotic thoracic esphageal lesion with laparoscopic instrument without open thoracotomy. The patient was 50 years old woman with a long history of progressive dyaphagia. A small (3 cm in diameter) smooth ovoid submucosal mass lesion was found at 26 cm distal from incisor on both esophagoscopy and esophagogram. Two 5 mm and two 10 mm trocars were inserted into the right pleural cavity under general anesthesia with double lumen endotracheal tube, An induced pneumothorax by insuffulation of CO2 gas made lung collapse and a good exposure of esophagus. Transorally introduced esophagoscope helped to demonstrate the exact location of lesion and also to give a guide at safe excision of mass with prevention of mucosal perforation. The lesion was found to be a congromeration of an inflammed hilar lympnode and hypertorphic esophageal muscle. The entire lesion was carefully dissected from esphageal mucosa and resected out en bloc. A chest tube was introduced through a trocar site. The lung was reinflated immediately. Post-operatively patient was very comfortable. Laparoscopic surgery is very effective and safe, and it could be applied for the resection of lung bullae, benign pulmonary neoplasm and for an excision of benign esophageal tumor.