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本研究设计开发了基于空气压差技术的减重康复步行训练系统。该系统采用比例-积分-微分控制器(PID)控制算法精确控制人体减重量,以美国德州仪器公司的混合信号处理器MSP430F149作为气压控制的核心,并使用微软公司的Microsoft Visual C++6.0开发程序设计上位机训练软件。该系统能够为下肢运动功能障碍患者提供舒适的减重步行训练环境,并能够实现对患者肌电信号的采集,以便于进一步对患者的信息进行科学、规范的管理。本文通过该训练系统对10名正常人进行下肢初始承重量、最大减重后下肢承重量、最大减重百分比等参数进行采集,分析结果显示,其组内相关系数(ICC)值均大于0.6。本文研究结果证实,该步行训练系统可靠性高,能够为临床下肢减重康复步行训练提供科学的数据。
This study designed and developed a weight loss rehabilitation walking training system based on air pressure difference technology. The system uses proportional-integral-derivative controller (PID) control algorithm to accurately control the weight of the human body to the United States Texas Instruments mixed signal processor MSP430F149 as the core of atmospheric pressure control, and Microsoft’s Microsoft C 6.0 development Programming PC training software. The system can provide a comfortable weight-loss walking training environment for patients with dysfunction of lower extremities, and can collect the EMG signals of patients for further scientific and standardized management of the patient’s information. The training system was used to collect the initial weight of lower limbs, the weight of lower limbs after maximum weight loss, the percentage of maximum weight loss, etc. The results showed that the correlation coefficient (ICC) values of all 10 groups were all greater than 0.6. The results of this study confirm that this walking training system has high reliability and can provide scientific data for clinical lower limbs weight loss rehabilitation walking training.