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肌形状对收缩强度的影响

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发表于 2013-2-10 19:13:42 | 显示全部楼层 |阅读模式
肌形状对收缩强度的影响



肌力是人体运动的内在动力,肌力的大小受到肌形状的直接影响。

     人体的每一块肌,都有一个最适前负荷和最适初长度。肌在这样的条件下进行收缩时.可以产生最大的收缩效果。如果这时肌进行等长收缩,肌所能产生的张力将达到最大。当逐渐增加肌的前负荷时,在它达到最适前负荷以前,肌收缩的强度和做功能力将随负荷的增大而增大;但在超过此限度以后,肌收缩的效果将随负荷的增加而减小。如果让肌在不同后负荷时进行等张收缩,它在每一具体后负荷时的收缩速度都要较肌处于任何其他前负荷时为大,说明肌的做功能力增大。所有骨骼肌在体内所处的自然长度,大都是它们的最适初长度。其在肌的重建手术中具有 指导意义。

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发表于 2013-2-26 16:26:18 | 显示全部楼层
这个还不错,好帖子,大家谈谈












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发表于 2013-3-6 14:29:28 | 显示全部楼层
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发表于 2013-3-11 16:24:58 | 显示全部楼层
the reporter was informed at the same time, the SASAC has identified a list of disk access these hotel assets. Insiders close to the core of the message source told this reporter, OCT Group, Nam Kwong (Group) Co., Ltd., China and Hong Kong China Travel Service Group Company, COFCO Limited, China International Travel Service Group Limited, China's Sinochem Corporation, including six central enterprises will absorb the current distribution in the major central enterprises of hotel assets. </P>
8), China Mobile Group (Liyuan Hotel Chongqing is transferred without compensation to the Hong Kong China Travel Service Group. This is the SAC in January 2010 after stripping reorganization of central enterprises of non-core business hotel assets, the official start of the substantive progress of the divestiture,Hotel Shower Cap. The data show that this reporter obtained from a research institution due to historical reasons, most of the central enterprises scale ranging from hotel assets, all central enterprises has about 2000 hotel, the hotel assets of the central enterprises involved in the adjustment of about 170 billion yuan ,Hotel Toothbrush. </P>
integration process from now lasts three to five years. "the people told this reporter. Above 6 disk access, OCT, south light, middle, of COFCO and three other company main business of the Group, including hotel, CITS and CTS (HK) has not been reflected in the main business out of the hotel business. </P>
peel reorganization prelude
the  important industries and key areas of the central corporate divestitures of non-core business hotel reorganization will first promote the action, the SASAC central enterprises hotel divestitures of non-core business is the actual long signal. The reporter noted, the SASAC as early as four years ago, began the investigation of central enterprises Hotel. Public from the SAC proposed stripping the central enterprises of hotel assets to the official mass stripping reorganization, almost a year and a half. </P>
notice  the reporter learned that, in 2007, one called the investigation regarding the development of the central corporate-owned hotels units already under distributed to the central enterprises, the notice requirements Mocha central corporate headquarters and all its level sub-enterprise investment run guesthouses, hotels, reception centers, guest houses, resorts and other units. September 2008 the SASAC again announced, selected two accounting firms to conduct random checks for electricity Hotels of the telecommunications industry's financial audit. </P>
SASAC had the job of planning: promoting the the entire peel restructuring plan in accordance with the industry as a whole, the first advance hotel divestitures of non-core business of the important industries and key areas of central enterprises restructuring. </P>
before have been the basis of spot checks audit, China Mobile Group belongs Liyuan Hotel Chongqing became the first to promote the hotel one of the assets of the central enterprises peel transfer. However, this is only a small part of the telecom central enterprises peel hotel assets. March last year, a survey showed that only China the Telekom's Tongmao hotel Holdings has a 11-star hotel, with about 24 billion in assets, accounting for about 0.4% of the total assets of China Telecom. </P>
CITS are talking about, but this year we have not what disk access to the hotel is not much chance of a few are in active negotiation, each specific progress to what extent is uncertain. "China International Travel Service Group Limited shares company vice president, secretary of the Board Xue Jun, said in an interview with reporters. </P>
"so many assets, so many people, assets change within people, this has just begun." said a SASAC official told the reporter consulting. , Hotel divestitures, restructuring work in accordance with the plan of the SASAC, use at least three to five years. </P>
stripping approach emphasizes the "negotiation"
peel the hotel assets of the central enterprises in a variety of ways, including the free transfer of state-owned property, the agreement for sale, the market for sale. According to this understanding, Mobile's Chongqing Liyuan Hotel stripping reorganization started from July 1, is transferred without compensation. The hotel is located in a the Chongqing Shapingba bustling commercial pedestrian street, is a four-star. Hotel assets as the Advanced propulsion peel reorganization of central enterprises, from the outset, has been the concern of each involved in stripping the reorganization of enterprises. This case may be the example of the central enterprises hotel divestitures of non-core business reorganization. </P>
but also expressed doubts about the enterprise mode of replication. This mode "impossible to peel. Fact, the central enterprises of hotel assets in which peel, the final outcome have uncertainty." One disk access enterprise insiders said the SASAC in the "Li Rongrong era", The divestiture of non-primary production hotel in central enterprises is mandatory, while Wang Yong times more emphasis on "mutual agreement". </P>












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