Sport training tension device

作者: Alan H. Place , Nathan A. Place

DOI:

关键词:

摘要: A sports training tension device that utilizes interchangeable attachment connectors for attaching elastomeric tubing sections between a standard piece of sporting equipment, such as tennis racket, racquetball etc. and fixed location tree, post, or other item. non-elastic strapping connector is provided lengths providing additional length without elasticity being incorporated.

参考文章(10)
Pierre E. Gilly, Tennis racket stroke training device ,(1982)
Bruce Roland, Tennis stroke training device ,(1974)
Richard F. Carella, Shooting and training device for archery ,(1987)
F Dougherty Patrick, Chris A. Ashby, Athletic movement trainer ,(1989)
Leo Dalbo, Stroke training device ,(1991)
Kenneth G. Lesson, Dennis R. Dorotinsky, Adjustable golf swing training device ,(1991)
Abelardo Pacheco, Golf training aid ,(1998)
James R. Ayres, Keith B. Ayres, Wrist exercise device ,(1997)
Gabor B. Racz, Tennis training device ,(1977)