The haptic perception affords detection of the physical and functional properties of an instrument actively sustained.Fifty-seven children(8.82±0.38 years old)and 64 elderlies(71.3±4.46 years old)estimated t...The haptic perception affords detection of the physical and functional properties of an instrument actively sustained.Fifty-seven children(8.82±0.38 years old)and 64 elderlies(71.3±4.46 years old)estimated the length and the distance of the center of percussion for two table tennis rackets and a badminton racket.The eigenvalues of each racket for length and distance from the wrist to the center of percussion were calculated.The present study confirmed the results obtained with field tennis rackets,extending them to table tennis and badminton rackets,and also to children.The elderlies preserved and children had the capacity of haptically detect physical and functional properties of table tennis and badminton rackets.The weight of the rackets affected properties estimations.The eigenvalues may be a valid tool for the definition of physical and functional properties of sport instruments,allowing better adjustment to different motor development stages.展开更多
With the continues improving of people＇s living standards, more and more people work out in all kinds of sports fields beyond the busy work. On the other hand, the development of the modem competitive sports also req...With the continues improving of people＇s living standards, more and more people work out in all kinds of sports fields beyond the busy work. On the other hand, the development of the modem competitive sports also requires that the sports experts should not only strive for the scientific training, but should also pay much attention on the improvement and development of the sports equipment at the same time, which makes the sports equipment market have achieved unprecedented prosperity. This paper introduces the application of the fiber reinforced composite materials in the field of sports equipment, which is described mainly from the advantages of the fiber reinforced composite materials used in sports equipment areas, and from the aspects of the principles of material selection, the product varieties, the application examples and the status.展开更多
文摘The haptic perception affords detection of the physical and functional properties of an instrument actively sustained.Fifty-seven children(8.82±0.38 years old)and 64 elderlies(71.3±4.46 years old)estimated the length and the distance of the center of percussion for two table tennis rackets and a badminton racket.The eigenvalues of each racket for length and distance from the wrist to the center of percussion were calculated.The present study confirmed the results obtained with field tennis rackets,extending them to table tennis and badminton rackets,and also to children.The elderlies preserved and children had the capacity of haptically detect physical and functional properties of table tennis and badminton rackets.The weight of the rackets affected properties estimations.The eigenvalues may be a valid tool for the definition of physical and functional properties of sport instruments,allowing better adjustment to different motor development stages.
文摘With the continues improving of people＇s living standards, more and more people work out in all kinds of sports fields beyond the busy work. On the other hand, the development of the modem competitive sports also requires that the sports experts should not only strive for the scientific training, but should also pay much attention on the improvement and development of the sports equipment at the same time, which makes the sports equipment market have achieved unprecedented prosperity. This paper introduces the application of the fiber reinforced composite materials in the field of sports equipment, which is described mainly from the advantages of the fiber reinforced composite materials used in sports equipment areas, and from the aspects of the principles of material selection, the product varieties, the application examples and the status.
