Examining the role of intrinsic and reflexive contributions to ankle joint hyper-resistance treated with botulinum toxin-A

Table 5 Spearman’s/Pearson’s correlation coefficients and their 95% confidence intervals (N = 26–27)

	MAS	Tardieu \(TS_Q\)	Refl. Gain G	Intr. Stiffness K	Intr. Damping B
Fast SPAT \(W_{fast}\)	0.05 [− 0.38,0.40]	0.24 [− 0.22,0.61]	0.73 [0.48,0.87]	0.46 [0.16,0.78]	0.83 [0.73,0.90]
Diff. SPAT \({\Delta }W\)	− 0.01 [− 0.42, 0.41]	0.60 [0.23,0.81]	0.86 [0.71,0.93]	0.17 [− 0.15,0.51]	0.72 [0.43,0.86]
Refl. Gain G	− 0.08 [− 0.48, 0.33]	0.57 [0.21,0.80]
Slow SPAT \(W_{slow}\)	− 0.03 [− 0.44,0.40]	− 0.09 [− 0.50,0.31]	0.27 [− 0.12,0.59]	0.74 [0.39,0.90]	0.71 [0.41,0.83]
Intr. Stiffness K	− 0.20 [− 0.62,0.27]	− 0.07 [− 0.44,0.40]
Intr. Damping B	− 0.04 [− 0.46,0.36]	0.38[− 0.07,0.67]

Correlations between the clinical measures (MAS, TS_Q), instrumented SPAT (\(W_{fast}\), \({\Delta }W\), \(W_{slow}\)) and PC technique measures (reflexive gain G, intrinsic stiffness K and intrinsic damping B). Spearman’s rank correlation coefficient \(\rho\) was used for all correlations involving the ordinal clinical measures, whereas Pearson’s correlation coefficient r was used otherwise. The 95% CIs were constructed using a non-parametric BCa bootstrap procedure

ISSN: 1743-0003