Research On Training Method And Device Of Balance Function Rehabilitation

As our population continues to age,the impact of falls on the health of older people cannot be ignored,and falls are a constant threat to older people.In addition,epidemiological surveys show that the number of people suffering from cardiovascular disease in China is rising,while the age of the patients is showing a decreasing trend.The vast majority of patients with cardiovascular diseases,such as stroke,have some degree of sequelae after the onset of the disease,with myospasm having a very high incidence.Even one year after the onset of stroke,myospasm can still severely affect balance and motor function.Therefore,it is of great social importance to assist patients in recovering from their illnesses and to help them regain their ability to balance properly.Currently,observational methods,scale assessment and laboratory tests are widely used in the clinical testing of patients’ balance ability.These methods are either based on subjective judgment or simply detecting the position of the patient’s center of gravity,none of which can provide systematic balance rehabilitation testing and training.To address the shortcomings of the above methods,a new device of balance ability training rehabilitation is designed in this paper.The device not only designs a set of rehabilitation actions for treating lower extremity muscle spasm in hemiplegic patients based on the typical pattern of lower extremity muscle spasm in hemiplegic patients and clinical treatment methods to stretch the lower extremity muscles of patients with muscle spasticity,but also designs a balance training detection system based on static and dynamic balance evaluation and balance response strategies when the body responds to disturbances,which helps patients gradually recover balance ability through detection,stretching and training.The device is primarily used for therapeutic and training purposes through the movement of the footrest and supporting platform.The footrest and supporting platform is rotated by a motorized unit to assist patients to stretch lower extremity and hip muscle.The supporting platform changes its tilt angle in all directions by means of two electric actuators and a cross axis.The device uses a distributed thin-film piezoresistive sensor to collect the patient’s plantar pressure distribution data,and the supporting analysis software in the device can calculate and analyze the collected data and get the position of the patient’s center of gravity,in order to achieve real-time monitoring of patient’s center of gravity.The rehabilitation system designed in this paper is capable of stretching the lower extremity muscles of patients with muscle spasticity and providing simultaneous feedback on the trajectory of their center of gravity and plantar pressure,forcing them to continuously adjust their center of gravity to improve their balance ability by actively changing their balance environment.Based on the real-time data collected by the device,the balance training and rehabilitation system can recalculate the patient’s center of gravity and ultimately determines the reaction time from the change of center of gravity to the recovery of the trainee’s center of gravity to better assess the patient’s balance ability.