Table 4

Matrix of ranked correlation coefficients

VT (1Hz) CMI (1Hz) TAMI (1Hz) Torque SI BSpeed BPCI Speed S5-NS5 PCI S5-NS5
VT (1Hz)0.420 0.668 0.523 0.2710.404 0.690 −0.721 −0.065
CMI (1Hz) 0.486 0.3680.3580.1520.519 −0.658 −0.459
TAMI (1Hz)0.4300.1970.0570.381−0.377−0.218
TQ0.3810.3400.302−0.327−0.253
SI−0.1250.044 −0.459 −0.123
BSpeed 0.649 −0.488 0.100
BPCI −0.760 −0.255
S5-NS50.105
S5-NS5

  • Correlation coefficients that were significant at the 0.05 level are shown in bold script. The table illustrates where there was a correlation between baseline variables and between baseline variables and response to stimulation. PBI=physiological cost index; S=measurements made with stimulation; NS=measurements made without stimulation; B=average baseline measurement; 5=5th assessment (after the stimulator had been used for 3 months)