Development of an EMG-based exergaming system for isometric muscle training and its effectiveness to enhance motivation, performance and muscle strength
Development of an EMG-based exergaming system for isometric muscle training and its effectiveness to enhance motivation, performance and muscle strength
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DOI：
10.1016/j.ijhcs.2018.11.010
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发表时间：
2019-04-01
影响因子：
5.4
通讯作者：
Conchas-Arteaga, Laura
中科院分区：
文献类型：
--
作者：
Garcia-Hernandez, Nadia;Garza-Martinez, Karen;Conchas-Arteaga, Laura
等长练习可用于一般的力量训练或康复。为了最大限度地发挥它们的好处而不过度肌肉疲劳，这些运动必须在医疗处方下进行，还需要指定其强度和持续时间。然而，在家里或诊所，他们很少被实时监测或评估，这可能会延迟或阻止目标的实现，对参与者的动机产生负面影响。因此，在本文中，它是介绍了一个exergaming平台的开发和临床评价的基础上，肌电图（EMG）的实时监测和性能评估的个性化等长运动。该系统使医务人员能够创建个性化的exergame会话，该会话基于从EMG信号估计的用户的肌肉力量来真实的监督游戏中主要角色的行为。此外，它还根据肌肉收缩持续时间和工作和休息间隔期间的相对努力来评估运动表现。数据存储功能使用户能够将结果上传到云数据库中，医疗保健提供者可以通过应用程序远程访问该数据库。该系统首先通过获得指浅屈肌等长收缩的肌电力模型来操作，然后将其集成到exergaming平台中。然后，进行了为期4周的随机对照临床试验，使用所提出的系统与传统的握力练习，以评估桡骨远端骨折患者的动力和握力。另外还评估了运动表现和主观工作负荷评分。结果显着地表明，所提出的系统的握力练习产生的40.2%，比传统的握力练习的改善，同时经历更高的动机水平，与较低的挫折和心理需求水平形成对比。然而，继续的研究正在进行中，以将临床试验的结果推广到更大的患者人群。
Isometric exercises can be used for general strength conditioning or rehabilitation. To maximize their benefits without excess muscle fatigue, such exercises must be performed under medical prescription, which also needs to specify their intensity and duration. However, at home or at a clinic they are rarely real-time monitored or evaluated, which may delay or prevent goal achievement, with negative influence on participants' motivation. Therefore, in this paper, it is introduced the development and clinical evaluation of an exergaming platform based on ElectroMyoGraphy (EMG) for the real-time monitoring and performance assessment of personalized isometric exercises. The system enables medical personnel to create personalized exergame sessions that oversee in real time the behavior of the main character in a game, based on the muscle force of the user, estimated from an EMG signal. In addition, it evaluates exercise performance, in terms of muscle contraction duration and relative effort during work and rest intervals. A data storage capability enables users to upload results in a cloud database, which can be accessed remotely by healthcare providers through an application. The system operates firstly by obtaining an EMG-force model for isometric contractions of the flexor digitorum superficialis muscle, which was then integrated in the exergaming platform. Then, a 4-week randomized controlled clinical trial was conducted with tailored isometric handgrip exercises using the proposed system versus conventional handgrip exercises to assess motivation and grip strength in patients with distal radius fracture. Exercise performance and subjective workload ratings were additionally evaluated. Results notably show that handgrip exercises with the proposed system yield an improvement in grip strength of 40.2% over conventional handgrip exercises, while experiencing higher motivation levels, contrasting with lower frustration and mental demand levels. However, continued research is ongoing to generalize the findings of the clinical trial to a larger patient population.