Table 4.

For exploratory aim 1, the primary outcomes include primary outcomes for specific aim 1 and treatment fidelity. For exploratory aim 2, the primary outcomes include primary outcomes for specific aim 1 and specific aim 2.

Title and description					Time collected
					Pre		During		Week 8		Week 12
Feasibility aim
	Recruitment
		Rate of recruitment (participants enrolled) per year		Xa		X		X		X
			Number of participants screened per month	X		X		X		X
			Number of participants enrolled per month	X		X		X		X
			Number of participants lost to follow-up per month	X		X		X		X
			Rate of retention per year	X		X		X		X
	Treatment fidelity
		Adequate knowledge of education program at 8-week follow-up		X		—b		X		—
			Rating of audio recording by external reviewers for confidence of participant group allocation on 0-5 scale	—		X		—		—
			Time participants spent in treatment sessions	—		X		—		—
			Time participants spent doing education homework between sessions	—		—		X		—
			Adequate blinding of participants to bias of research team “At the beginning of the study, you were randomized to receive either Education A or Education B. We believe Education A is more helpful for recovery from Achilles tendinopathy than Education B. Which Education do you think that you received?” (A, B, I don’t know)	—		—		X		—
			Duration of each exercise phase	—		X		—		—
			Highest loading level attained at each exercise phase	—		X		—		—
			Therapeutic alliance “What I was doing in physical therapy gave me new ways of looking at my problem.” “I was confident my physical therapist’s ability to help me.” “My PA and I were working towards mutually agreed upon goals.” (7-point scale from Never to Always)	—		—		X		—
			Adherence to exercise program			X
	Outcome capture rate
		Percentage of missing data per outcome		X		X		X		X
			Reasons for missing data	X		X		X		X
	AEsc
		Frequency and type of AEs		X		X		X		X
Other prespecified outcomes
	Demographics
		Date of birth, sex, race/ethnicity, height/weight/BMI, description of ATd symptoms, goals for physical therapy, previous experience with conservative care, comorbidities		X		—		—		—
	Four square step test
		Participants will perform a series of steps in a square formation. The duration of time needed to complete the step reflects dynamic balance and mobility		X		—		—		—
	Ultrasound imaging of tendon pathology
		Ultrasound imaging will be used to quantify tendon thickness, echogenicity, presence of osteophytes/bone spur		X		—		X		—
	Medication
		History, current use, and dose of all routine medications and specific questions about opioid use		X		—		X		X
	Treatment history
		Treatments previously tried and if they were effective at reducing pain		X		—		—		—
	Mode of participants’ complete visits
		Percentage of participants who completed all visits (evaluation sessions 1 and 2 and follow-up visits) through in-person visits compared with those who completed a percentage of visits through telehealth format				—		—		X

^aOutcome collected at timepoint.

^bOutcome not collected at timepoint.

^cAEs: adverse events.

^dAT: Achilles tendinopathy.