Leg exercising device

作者: Brian Russell

DOI:

关键词:

摘要: Thick, resilient, flexible pad with a sloped top surface and sides provides for safe, non-jarring leg exercises involving running, squatting, squat-running, joint pivoting, balance the like.

参考文章(5)
Lewis M Schonfeld, Portable jogging recorder ,(1970)
Loren W Eames, Charles R Brantingham, Bruce E Beekman, Stress reducing floor surface ,(1966)
Leonard W Wright, Foot kneading rugs ,(1955)
John J. Hancock, Pneumatic jogging platform ,(1977)