The leaves of Apocynum venetum L. (AV), a native Chinese plant, have been used as folk medicine in China and Japan. This study evaluated the content of the active antioxidant component and antioxidant activities of AV, and its two alternative species, Poacynum pictum (Schrenk) Baill. (PP) and Poacynum hendersonii (Hook.f.) Woodson (PH). The total phenolic and total flavonoid contents were determined. In addition, the quantitative analysis of two major flavonoid compounds (hyperoside and isoquercitrin) was carried out by HPLC. The antioxidant activities were investigated by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity method, the reducing power test and the chelating ability of ferrous ions. The highest total phenolic and flavonoid contents were observed in the AV methanolic extract, followed by the PP and PH methanolic extracts. HPLC analysis indicated that isoquercitrin was one of the major components in all three species, however, hyperoside was only detected in AV at high levels. All the antioxidant assays we performed demonstrated that the AV extract was markedly superior to those of the other two species.

Sports brokerage industry is not only the crucial part of sports industry but the "lubricant" and "booster" for guaranty of healthy, ordered and rapid-developing sports industry. It has the connecting role in sports chain. However, our brokerage industry market is short of excellent talents. What's more, brokerage activity is still in infant stage, which can not compete with foreign sports brokerage companies. Hence, it is urgent to enhance the cultivation of sports brokers from the strategic aspect of sports industry development.

This essay is going to discuss the possibilities and necessities to develop the sport industry in our country by using the investing and circulating funds. It analyzes the strategies and the ways to operate the funds, and it puts forwards several suggestions on development of the investment funds, the modes of operating the funds, the ways to organize it, etc,.There is no single standard to define the sport industry. In this essay, the sport industry refers to the enterprises producing and offering sport services or products, that is, the collections of all kinds of enterprises which provide the intangible products with labor services. There are two reasons to define the sport industry. Firstly, It fits the three levels of industry division put forward by Fisher; Secondly, the essay can focus on the investing and circulating funds systems of the providing the intangible products in sport industry. Because the producing the sport suits and the facilities are closely connected with the manufactory industry, which is quite different from the investing and circulating fund system.

Based on literature research and the application development of the computer video image processing software, this paper studied the application of the image processing technique in physical training. It mainly includes the four parts: introduction of the image processing technique; the newly invented techniques and their development when applying it in physical training; the ways to apply this technique in track and field training and the main forms and effect that this technique fed back to training, and the required equipments both for hardware and software and the main objects. It is estimated that in the future, the image processing technique will be widely applied to the physical research and service. 1 The Working Procedure of the Application of the Video Image Processing Technique in Physical Training Both the application of the image processing technique and the application of the living examples of image processing in the items of track and field training are widely adopted. Based on our experience of researching and serving, we have the following conclusions: 1.1 The Application of Pictures of Sports Skills 1.1.1 An action series is usually got by shooting a whole stroking technique, and then collecting the pictures of the movements at key phases continuously, making them into the action series and then displaying it to the athletes to feed back. In this way, the athletes may observe their stroking technology clearly. This method has been adopted by the researchers for many years[1]. For example, Li Meiju, the excellent female shot putter, has the best score of 18.78m in the Olympic trial, and her movement was shot and produced as the action series of the key phases, so it was easy to observe and analyze the features of her movements at any phases directly. (Picture.1) Picture 1 Li Meiju's action series of her stroking technique 1.1.2 The Composite Picture of Action Series at Key Phases Under the same background, to put many continuous movements pictures at key phases into one picture to form a completed technical picture. The advantage is to observe the change of the movement under one background more clearly. For example, picture 3 is the composite picture of Liu Xiang's skills of 13.06s. By this picture, the integrity of Liu's movement when clearing thebar can be well observed. (picture 2

leisure sport industry is the tertiary industry, whose economic features are indivisibility between production and consumption and relatively large elasticity of substitution of leisure sport products' factors of production; Leisure sport products have quality of final product and economy is the foundation of development of leisure sport industry. The development of the economy promotes progress of leisure body building entertainment industry. Leisure sport improves industrial structure, expands employment space, impels progress of economy, meets people's sports demands, and facilitates development of leisure sport industry. For developing leisure sport industry, it is required to establish the corresponding administrative organization, perfect the rules and regulations, develop the market of leisure sport industry and attach great importance to personnel training.With the constant development of our market economy and the increase of leisure time, physical culture has started to enter into people's daily life in our country. With the increasingly enhancement of people's living standard, people's consumption concept and life style has also changed. The concepts of spending for health and paying for happiness have reached common ground. And leisure sport has started to enter into people's lives. Leisure sport has attracted social public due to its particular charm. Not only does it have competitive sports' happiness of overcoming difficulties and defeating opponents, but also it has the effects of strengthening one's physique and promoting health; not only does it have expectation to the unpredictability of competitive sports' results, but also it has casual leisure from disregarding success or failure in health sports; not only does it possess sense of achievement in defeating nature and overwhelming personal success, but also it owns the life confidence of remolding oneself and healthy personality. Leisure sport activity can rich people's spare culture lives, ameliorate people's life style, shorten distance between people and strengthen one's physique, and it is representation of sports' nature function. Therefore, leisure sport can be developed rapidly. And leisure sport industry that relates to leisure sport has also got unprecedented prosperity. The large leisure sport consumption market has produced unlimited business opportunity and brought huge investment space to investors.