With the control module PM and a wide range of adapters which are needed for the scheduled tasks, the CON-TREX® MJ multijoint module is a versatile, rotatory testing, training and therapeutic system to test and train all major joints of the upper and lower limbs in the open kinetic chain. The highly flexible mechanism with excellent operator guidance makes objective and reproducible test results possible in every work mode. The mechanical design of the CON-TREX® MJ is extremely user-friendly: the patient's seat and backrest can be electronically adjusted at the touch of a button. The robust processed cushions made of synthetic leather offer a maximum of comfortable seating even during long training sessions and are easy to clean. Training while sitting or standing, measurements in the prone or supine position: CON-TREX® MJ offers maximum flexibility in every case. It enables the analysis of both the static and dynamic strength of a joint and the resulting targeted functional muscle-strength training and improvement to skills of coordination with possible monitoring and correction during training or therapy. Depending on the direction of motion, the following muscular load types exist in dynamic modes: concentric/concentric, concentric/eccentric, eccentric/concentric and eccentric/eccentric. Unique to CON-TREX® are the combined load types: con/CPM, CPM/con, CPM/ecc and ecc/CPM.