临沂离区域性金融中心目标有多远——临沂区域金融发展对实体经济支持力度分析

重点研究临沂市银行贷款和股票市场融资对实体经济的支持力度,分析临沂金融发展水平离区域性金融洼地的目标还有多远。数据分析显示,在金融发展的度量指标中,临沂仅境外股票上市融资情况发展良好,而银行业机构贷存比、贷款/GDP比率和境内股票市场上市融资等均发展不足,对实体经济的支持力度不仅落后于山东省内大多数兄弟地市,也显著落后于经济结构类似、可比性较强的浙江省金华市。基于此,提出了包括提高贷存比、发展民间融资等推动临沂金融发展的政策建议。     

Acute effects of passive muscle stretching on sprint performance

The results of previous research have shown that passive muscle stretching can diminish the peak force output of subsequent maximal isometric, concentric and stretch-shortening contractions. The aim of this study was to establish whether the deleterious effects of passive stretching seen in laboratory settings would be manifest in a performance setting. Sixteen members (11 males, 5 females) of a Division I NCAA track athletics team performed electronically timed 20 m sprints with and without prior stretching of the legs. The experiment was done as part of each athlete's Monday work-out programme. Four different stretch protocols were used, with each protocol completed on a different day. Hence, the test period lasted 4 weeks. The four stretching protocols were no-stretch of either leg (NS), both legs stretched (BS), forward leg in the starting position stretched (FS) and rear leg in the starting position stretched (RS). Three stretching exercises (hamstring stretch, quadriceps stretch, calf stretch) were used for the BS, FS and RS protocols. Each stretching exercise was performed four times, and each time the stretch was maintained for 30 s. The BS, FS and RS protocols induced a significant (P < 0.05) increase (approximately 0.04 s) in the 20 m time. Thus, it appears that pre-event stretching might negatively impact the performance of high-power short-term exercise.