Research On Transfer Of Limb Coordination Skills Based On Immersive VR Environment

Coordination is closely related to our daily life.For some special groups,such as patients with cerebral apoplexy hemiplegia,uncoordinated limbs bring great inconvenience to life and work.Traditional methods of improving physical coordination have been unable to meet modern needs due to their time and space limitations and high cost of money.Based on virtual reality technology,this paper conducts an in-depth study on the transfer of coordination skills between limbs.The main contents are as follows: first,reference,To analyze the research status of body skill transfer and coordination skill improvement.Second,A virtual system is designed and developed for limb coordination training.Thirdly,The effects of visual feedback and the degree of reality of the virtual hand on the transfer of coordination skills between limbs in the virtual environment were investigated through experiments,and whether such methods have universal adaptability in stroke patients with hemiplegia was also discussed.To be specific,firstly,the experimental paradigm is designed on the basis of the professional theory of literature by referring to specific literature.Secondly,the virtual reality drawing system is designed and developed by Unity3 D.Finally,48 healthy students and 10 patients with stroke hemiplegia were recruited for the experimental study.In experiment 1,48 healthy students were given different training strategies:1.Single hand-drawn drawing task,giving subjects visual feedback of two-handed drawing(rh-bh);2.Two-handed drawing task,giving subjects visual feedback of two-handed drawing(bh-bh);3.Give visual feedback to two-handed drawing(noh-bh)without drawing task;4.One-handed visual feedback(rh-rh)was given to the subjects by single hand-drawn drawing task.In the training condition of rh-bh,virtual hands with different real degree were used for experiments.In experiment 2,10 patients with stroke hemiplegia were trained under rh-bh.The two sets of experimental data are analyzed and discussed.The results of this study are as follows:(1)In the virtual reality environment,visual feedback has a significant impact on the transfer of coordination skills.At the same time,a single hand drawing task can be performed to give visual feedback to the two-handed drawing,which can achieve a large degree of coordination skill transfer.(2)In the virtual environment,virtual hands with different degrees of reality will affect the degree of coordination skill transfer.(3)This method is effective for both healthy people and patients with motor hemiplegia.The design and research of this experiment is of guiding significance to the development of a virtual reality platform which can improve the coordination performance of hands by one-handed training.Moreover,it provides a new way for the patients with upper limb hemiplegia to improve the coordination performance of both hands,and further provides a theoretical basis for the application of coordination skill transfer effect in patients with upper limb hemiplegia,and it is also of great significance for the exercise rehabilitation of patients with hemiplegia.