Figure 5
From: A neuroprosthesis for control of seated balance after spinal cord injury
Typical response showing sensor output, trunk angle and muscle stimulus for different pull amplitudes for Subject S4. In all cases, the flexion threshold was set at 0.75. With lower pull magnitudes the trunk did not reach the set flexion threshold before muscle action restored it to erect. With the larger pull magnitude of 45%BW, the trunk flexed up to the set flexion threshold before muscle action was strong enough to restore it to erect.