The muscle electrical stimulator mainly plays the following roles in occupational therapy and physical therapy:
Enhance muscle function
Passive muscle contraction is induced by electrical stimulation, which helps to enhance muscle strength and endurance, especially for patients who have been bedridden for a long time, suffer from muscle atrophy or movement disorders, and restore muscle function. For example, patients with post-stroke sequelae or spinal cord injuries can gradually restore their ability to move independently through regular electrical stimulation.  

Promote neurological rehabilitation
Stimulating nerve endings promotes nerve regeneration and repair, helping to restore limb function. For example, patients with peripheral nerve injury or stroke can rebuild nerve conduction pathways and improve motor control ability through electrical stimulation.  
Relieve pain and inflammation
Low frequency current can inhibit pain nerve conduction, alleviate pain caused by arthritis, lumbar muscle strain, etc., while improving local microcirculation and accelerating inflammatory metabolism.  
Improve blood circulation
Electrical stimulation induces rhythmic contraction and relaxation of blood vessels, increases blood flow and oxygen delivery, helps accelerate tissue healing, reduces swelling, and promotes postoperative recovery.  
Improve motion control

Combining electrical stimulation with exercise training can improve control over specific muscle groups and optimize athletic performance. For example, athletes activate deep muscle fibers through electrical stimulation to enhance motor coordination.  
Professional guidance is required for use, and parameters should be adjusted according to individual tolerance to avoid excessive stimulation or skin burns.