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. 2020 Oct;45(2):161–169. doi: 10.1177/0309364620963943

Figure 4.

Figure 4.

Mean absolute value of surface electromyography (EMG) signals recorded from participants’ forearms during wrist flexion (left) and extension (right) for a representative trial. Signals are normalized based on the maximum signal observed between the two channels across EMG trials. SCI: spinal cord injury, BPI: brachial plexus injury.