The THUMS models are developed by Toyota Motor Corporation and Toyota Central R&D Labs since the year 2000.
Currently, the following model variants are available
THUMS Version 4 – detailed, passive model for highly dynamic crash load cases and injury evaluations
AM50, AM95, AF05, 10YO, 6YO and 3YO, occupant and pedestrian models
THUMS Version 5 – coarser model including active muscle modelling to reflect the kinematical behaviour in crash and pre-crash scenarios
AM50, AM95, AF05 occupant models
THUMS Version 6 – detailed model including active muscle modelling for crash- and pre-crash-scenarios and injury evaluations
AM50, AM95, AF05 occupant models
Since end of January 2021 the models are royalty-free and available from Toyota using an open-source license and can directly be downloaded from the TOYOTA THUMS website