Strain rate (SR) tensor mapping can be conveniently computed from velocity encoded phase contrast (VE-PC) imaging. The study of the variation of strain rate indices with force output (% Maximum Voluntary Contraction (MVC)) can provide additional information similar to stress-strain relationships measured at the whole muscle level. However, such studies have been limited by the long VE-PC sequence time precluding its use at high MVCs. We have developed a compressed sensing VE-PCI technique to enable acquisitions across a range of MVCs. Successful SR mapping for 30-70%MVC on six subjects is reported here.