US Patent 11229814 Dynamic training device

Training devices having at least two elastic members connected to a respective end of an inelastic member are disclosed. The training devices comprise first and second handles coupled to a respective one of the two elastic members. The training devices may be used to add various strength training modalities to a cardiovascular workout or fitness regimen. The training device may be provided in the form of a kit including elastic and inelastic members having differing elasticities, lengths, and widths and including removable handles, potentially of differing types.