Skip to main content
Fig. 3 | Journal of NeuroEngineering and Rehabilitation

Fig. 3

From: Motorless cadence control of standard and low duty cycle-patterned neural stimulation intensity extends muscle-driven cycling output after paralysis

Fig. 3

Carousel Controlled stimulation schematic for the left quadriceps (green box). Carousel logic (blue box) detects the passing of an angle (θ = 5) outside of the L. Quad active region and switches the stimulating contact and thus fiber group active in the next contraction. Instantaneous cadence and resulting errors are calculated as in the Standard Controller. Each independent contact is driven by its own independent PI controller, enabling different PW outputs to be delivered through the different contacts when active. When not active, contacts receive a PW of zero and thus do not contribute to the pedal stroke. This logic is repeated for the right quadriceps, using a different crank angle (θ = 180) as the contact switching signal

Back to article page