ABSTRACT
How to realize the control of limb movement and apply it to intelligent robot systems at the level of cerebellar cortical neurons is a hot topic in the fields of artificial intelligence and rehabilitation medicine. At present, the cerebellar model usually used is only for the purpose of controlling the effect, borrowing from the functional mode of the cerebellum, but it ignores the structural characteristics of the cerebellum. In fact, in addition to being used for controlling purposes, the cerebellar model should also have the interpretability of the control process and be able to analyze the consequences of cerebellar lesions. Therefore, it is necessary to establish a bionic cerebellar model which could better express the characteristics of the cerebellum. In this paper, the process that the cerebellum processes external input information and then generates control instructions at the neuron level was explored. By functionally segmenting the cerebellum into homogeneous structures, a novel bionic cerebellar motion control model incorporating all major cell types and connections was established. Simulation experiments and force feedback device control experiments show that the bionic cerebellar motion control model can achieve better control effect than the currently widely used cerebellar model articulation controller, which verifies the effectiveness of the bionic cerebellar motion control model. It has laid the foundation for real brain-like artificial intelligence control.
Subject(s)
Humans , Arm , Artificial Intelligence , Bionics , Cerebellum , MotionABSTRACT
Objective To explore the short-term efficacy of individualized motion control training for the patients with physiological sacroiliac joint dysfunction. Methods 58 patients were diagnosed as sacroiliac joint dysfunction by standing and sitting stoop test and single leg test. All the patients were randomly divided into two groups. Rotation of the iliac bone was adjusted by muscle energy technique and impact technique in all the patients. The study group received additional exercise control training including local muscle drafting,flexibility and stability. The short-term efficacy was observed. Results VAS and ODI in the two groups were improved significantly after treatment,and there was significant difference between the two groups before treatment(P < 0.01). Three weeks after treatment,the VAS score and ODI in the control group increased,while those in the study group did not change significantly. There was a significant difference in the continuous efficacy of treatment between the two groups(P < 0.05). Conclusions Motion control training based on manipulative exercise test evaluation has a better continuous efficacy for patients with no-specific low back pain and sacroiliac joint dysfunction. It is worth clinically popularizing.
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The paper introduces a new design of the CT rotation motion control system. The system is controlled by a variable frequency drive as a controller and a general induction motor as an actuator. In addition, this paper also introduced the model selection of CT rotating control device and the parameters setup for variable frequency drive. Meanwhile, a test method of the rotor position servo control system is also introduced at the end of the paper. The new system has lowcost, high-performance features, fully meets the requirement of CT rotation motion control.
Subject(s)
Equipment Design , Rotation , Tomography, X-Ray ComputedABSTRACT
Objective To observe the effects of lower limb motion control training using virtual games combined with core stability training (CST) on the lower limb motor function of hemiplegic patients after stroke.Methods Sixty hemiplegic stroke patients were divided into an observation group and a control group (n =30 in each) using a random number table.The control group was given conventional treatment and CST,while the observation group received lower limb motion control training using virtual games in addition to conventional treatment and CST.All of the patients were assessed using the Fugl-Meyer lower limb assessment (FMA),the Berg balance scale (BBS),the modified Barthel index (MBI),10 metre maximum walking speed (MWS) and functional ambulation categorization (FAC)before and after 8 weeks of treatment.Results Before the intervention there was no significant difference between the two groups in any of the measurements.After the treatment,however,the average FMA,BBS,MBI,MWS and FAC in the observation group were significantly better than those before treatment and those in the control group.Conclusions Lower limb motion control training using virtual games combined with core stability training can improve effectively the lower limb motor function of hemiplegic patients after stroke.Such a combination is worth applying in clinical practice.
ABSTRACT
@#ObjectiveTo compare the effects of Taijiquan and walk exercise on patients with Parkinson's disease (PD) at early stage.Methods40 PD patients were randomly divided into 2 groups according to the stochastic tables: Taijiquan group (n=20) received Taijiquan exercise, while walk group (n=20) received walk exercise. The course was 4 weeks. UPDRSⅢ from Unified Parkinson's Disease Rating Scale (UPDRS) and Berg Balance Scale(BBS) were to assess the patients before and after treatment.ResultsThe Taijiquan group improved significantly(P<0.01) and better than the walk group (P<0.01) in UPDRSⅢ, effects and BBS after treatment.ConclusionTaijiquan may improve the motion control and balance function for patients with Parkinson's disease.