Verma Nikhil, Levy Isaiah, Sarma Devapratim, Paulus Paige, Petersen Bailey, Weber Douglas J
Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul;2020:3775-3778. doi: 10.1109/EMBC44109.2020.9175936.
By 2020, over 2.2 million people in the United States will be living with an amputated lower limb. The functional impact of amputations presents significant challenges in daily living activities. While significant work has been done to develop smart prosthetics, for the long-term development of effective and robust myoelectric control systems for transtibial amputees, there is still much that needs to be understood regarding how extrinsic muscles of the lower limb are utilized post-amputation. In this study, we examined muscle activity between the intact and residual limbs of three transtibial amputees with the aim of identifying differences in voluntary recruitment patterns during a bilateral motor task. We report that while there is variability across subjects, there are consistencies in the muscle recruitment patterns for the same functional movement between the intact and the residual limb within each subject. These results provide insights for how symmetric activation in residual muscles can be characterized and used to develop myoelectric control strategies for prosthetic devices in transtibial amputees.
到2020年，美国将有超过220万人下肢截肢。截肢带来的功能影响给日常生活活动带来了重大挑战。尽管在开发智能假肢方面已经做了大量工作，但对于为经胫截肢者开发有效且强大的肌电控制系统的长期发展而言，关于下肢外在肌肉在截肢后如何被利用仍有许多需要了解的地方。在本研究中，我们检查了三名经胫截肢者完整肢体和残肢之间的肌肉活动，目的是确定双侧运动任务期间自愿募集模式的差异。我们报告称，虽然个体之间存在差异，但每个个体的完整肢体和残肢在相同功能运动中的肌肉募集模式存在一致性。这些结果为如何表征残肢肌肉的对称激活并将其用于开发经胫截肢者假肢装置的肌电控制策略提供了见解。
