2019 International Journal of Mechatronics and Applied Mechanics  
Wrist injuries are a very common type of pathology that can compromise most daily tasks. Conventional therapy is dependent on the availability of physiotherapists as well as devices designed for this purpose. Conventional devices do not accompany the patient throughout their rehabilitation process, requiring their constant replacement. Vibratory therapies emerged in recent years and have demonstrated several benefits in this area. However, there are few vibratory devices designed for wrist
more » ... ilitation. In this paper, we propose two different portable and active models for wrist rehabilitation based on vibratory therapy for wrist rehabilitation. The first model has a cylindrical shape and the second model has a dumbbell shape. The results obtained showed that vibratory therapy can assist the wrist rehabilitation because it promoted improvements in joint amplitude gain in all wrist movements. Furthermore, the second device demonstrated higher joint gains than the first device. In addition, the results obtained from the measurement of accelerations demonstrate that the natural frequencies of both devices are adequate for wrist and forearm rehabilitation as well as the mode of vibration. There are differences between what the simulations predicted and what was obtained in practice in terms of natural frequency values.
doi:10.17683/ijomam.issue5.2 fatcat:fznfbmv4hvbibcvcamkb4tb5pu