Lower limb muscles are mobilized through lever devices. The physical therapist finds the best training regimen by adjusting the length of the levers, load weights, and the number of repetitions. Block-type devices are usually used to develop strength and muscle endurance in upper limbs. Patients can train on treadmills and stationary exercise bikes in order to form correct movement patterns and improve their coordination. Other devices, such as vibroextensors, are also used; the latter diffuse dosages of heat, vibration, and mechanical massage into paravertebral areas of the patient’s body, thus facilitating mobilization of the spinal joints.