Exercise apparatus and methods

作者: Gregory N. Meister , Charles B. Perez

DOI:

关键词:

摘要: An exercise apparatus includes a U-bar the ends of which are pivotally coupled to two L-bars by rotatable hinge assemblies containing torsion spring. The have spring tension setting means configured vary and secure at or more distinct tensions settings without disassembly thus providing levels resistance relative rotation each L-bar independently with respect U-bar. Additionally, in certain embodiments assembly has an operation that functions control allowable independent end sections.

参考文章(42)