Table 1.

Correlations between changes in foot plantar pressure variables as derived from the Center of Path (CoP, the weight distribution pathway at the foot arch during a step), selected ATRS activities and tendon stiffness over the 12-week recovery.

		In-shoe insole variables
		CoP-Length	CoP-Slope	CoP-AUC	CoP-Euclidian Length	AP distance	ML distance
Tendon stiffness (% healthy)		0.49 (p = .028)	− 0.19 (p = .434)	0.44 (p = .067)	0.44 (p = .055)	0.28 (p = .139)	0.18 (p = .357)
ATRS score		0.50 (p = .025)	− 0.02 (p = .929)	0.65 (p = 0.004)	0.74 (p < 0.0001)	0.51 (p = 0.004)	0.67 (p < 0.001)
ATRS strenuous activities	Walking on uneven surface	0.62 (p = .003)	0.041 (p = .866)	0.70 (p = .001)	0.82 (p < .0001)	0.77 (p < .0001)	0.60 (p < .001)
	Running	0.38 (p = .099)	− 0.07 (p = .787)	0.63 (p = .005)	0.61 (p = .004)	0.57 (p = .001)	0.42 (p = .024)
	Jumping	0.29 (p = .220)	− 0.10 (p = .674)	0.53 (p = .023)	0.47 (p = .034)	0.42 (p = .022)	0.40 (p = .033)

Note that ATRS activities are used as indicators of the perception of what patient think they can do, not as indicators of what patients actually do at the evaluation time.