Table 2.

Outcome measurements

		STUDY PERIOD
		Enrolment/ Baseline	Post-allocation	Close-out
TIMEPOINTa		t0	t1	t2
ENROLMENT:
Eligibility screen		X
Informed consent		X
Allocation		X
INTERVENTIONS:
Foot exercise and education
Brief advice
ASSESSMENTS:
Participant characteristics		X
Primary outcome measures
Feasibility
Number of eligible participants				X
Willingness to enrol				X
Recruitment rate				X
Adherence				X
Logbook completion				X
Adverse effects				X
Dropout rates				X
Credibility
Borkovec and Nau Questionnaire		X	X
Acceptability
Number of sessions attended				X
Adherence to foot exercises				X
Additional treatment sought				X
Early withdrawal				X
Secondary outcome measures
Patient reported outcomes
First step pain in previous week		X	X
Worst pain in previous week		X	X
Average pain in previous week		X	X
Foot and Ankle Ability Measure		X	X
Foot Health Status Questionnaire		X	X
Global Rating of Change Score			X
Pain Self-Efficacy Scale		X	X
Active Australia Survey		X	X
Physical measurements
Intrinsic foot muscle morphology (MRI & ultrasound)		X	X
Plantar fascia thickness (ultrasound)		X	X
Intrinsic foot muscle motor performance		X	X
Foot Posture Index		X	X
Foot mobility		X	X
Ankle dorsiflexion range of motion (standing lunge test)		X	X
Toe flexor strength (dynamometry)		X	X
Plantar flexor strength (standing heel rise test)		X	X

^at₀ = Baseline, t₁ = week 12, t₃ = end of data collection all participants