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Fig. 2 | Journal of NeuroEngineering and Rehabilitation

Fig. 2

From: Grip control and motor coordination with implanted and surface electrodes while grasping with an osseointegrated prosthetic hand

Fig. 2

Virtual Eggs Test results for 6 N (left) and 18 N (right) blocks in terms of number of broken (top row) and transferred blocks (bottom row). The transferred blocks are shown as absolute number while the broken blocks are shown as percentage of the transferred blocks. Solid and dashed lines represent eEMG and sEMG configurations, respectively. The scatter plots compare the transferred and broken blocks between the two configurations. Each dot represents a single experimental session from one subject. In the VET6N, subjects broke fewer blocks in the eEMG configuration in 13 out of 15 sessions (3 subjects × 5 sessions), considerably improving their performance when using epimysial electrodes. On the other hand, more blocks were transferred when using the sEMG in 10 out of 15 total sessions. Similarly, in the VET18N, subjects broke fewer blocks in the eEMG configuration in 9 out of 15 sessions but transferred more blocks in sEMG configuration in 8 out of 15 sessions

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