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. Author manuscript; available in PMC: 2017 Dec 6.
Published in final edited form as: J Neural Eng. 2016 Jun 1;13(4):046009. doi: 10.1088/1741-2560/13/4/046009

Figure 2.

Figure 2

Wrist muscle pulling directions and optimal muscle activation patterns. (a) Vectors indicate the direction of force exerted by each of the five main wrist muscles modeled in this study: Extensor Carpi Radialis longus (ECRl), Extensor Carpi Radialis brevis (ECRb), Extensor Carpi Ulnaris (ECU), Flexor Carpi Ulnaris (FCU), Flexor Carpi Radialis (FCR). Derived from [1]. (b) Optimal patterns of muscle activity needed to produce a force corresponding to each of eight targets using a minimal activation of the muscles shown in (a).