In recent decades, scientific advances in strength training and physical therapy enabled the development of machines, which can monitor and perform the exercise with versatility and multifunctionality, such as the isokinetic dynamometers (ID). Nowadays it can be identified some problems with ID, including: a) high cost, b) isokinetic impact, c) posture on the dynamometer do not simulate the posture on sports, d) misalignment of the articular anatomic center of rotation to the center of rotation of the dynamometer. The objective of the present research is to develop a prototype of a new ID conception that should give theoretical and practical support to performing solutions that satisfy the problems related above. The prototype of a new ID conception is deployed by PRODIP methodology encompassing the phases of planning design, informational design, conceptual design and preliminary design. Comparing the simulated results with the theory, for each exercise mode, it can be concluded that the prototype can be used to support possible innovations for the problems mentioned above.