Table 1. Intrinsic and extrinsic foot muscles exercise protocol for the intervention groups.

Muscle	Position	Frequency per week
		1st	2nd	3rd	4th	5th	6th
Tibial posterior	Lying	3x15 r	3x15 r	3x15 r	3x15 r	3x30 r	3x30 r
Long flexor of the hallux	Lying	3x15 r	3x15 r	3x15 r	3x15 r	3x30 r	3x30 r
Intrinsic	Sitting-bipedal	3x15 r	3x15 r	3x15 r	3x15 r	3x30 r	3x30 r
Intrinsic	Sitting-unipedal	3x15 r	3x15 r	3x15 r	3x15 r	3x30 r	3x30 r
Intrinsic	Sitting-unipedal	3x30 s	3x30 s	3x30 s	3x30 s	3x60 s	3x60 s
Intrinsic and extrinsic	Standing-bipedal	3x30 s	3x30 s	3x30 s	3x30 s	3x60 s	3x60 s
Intrinsic and extrinsic	Standing-unipedal	3x30 s	3x30 s	3x30 s	3x30 s	3x60 s	3x60 s

r=repetitions; s=seconds; #=Stance shown in the Figure 1 panel.