Table 4.

Overview of outcomes, outcome measures and assessment time points

Outcomes	Outcome measures	Assessment time pointa
Feasibility and acceptability
Number of therapy sessions + exact content of therapy	Therapy records	14, 26, 52 weeks
Adherence home-based exercise program	Log book	14 weeks
Adherence to log book completion	Log book	14 weeks
Willingness to enroll	Study records1 June 2016 (final inclusion date)
Patient satisfaction	Questionnaire	14 weeks
Eligible patients	Study records1 June 2016 (final inclusion date)
Recruitment rate	Study records1 June 2016 (final inclusion date)
Drop-out rate	Questionnaire	14, 24, 52 weeks
Adverse events	Questionnaire	14, 24, 52 weeks
Other treatment/co-interventions	Log book/Questionnaire	14, 26, 52 weeks
Preliminary estimate of effect
Perceived hip function and health-related QoLb	International Hip Outcome Tool 33 (IHOT-33)	0, 6, 14, 26, 52 weeks
Hip functional performance	Single Leg Squat Test (SLST)	0, 6, 14, 26, 52 weeks
Other outcomes
Activity level	Modified Tegner Activity Scale	0, 14, 26, 52 weeks
Sports activity level	Hip Sports Activity Score (HSAS)	0, 14, 26, 52 weeks
Rating of change	Global Perceived Effect Scale (GPE)	14, 26, 52 weeks
Range of motion	Goniometer	0, 14, 26, 52 weeks
Strength	Hand Held Dynamometer	0, 14, 26, 52 weeks
Hip functional performance hop/jump	Single Leg Hop Test/Star Excursion Balance Test	0, 14, 26, 52 weeks
Patient history	Questionnaire	0 weeks
Patient demographics	Questionnaire	0 weeks
Surgical procedure + exact perioperative diagnosis	Surgical report	Following surgery
Medication use	Questionnaire	0, 14, 26, 52 weeks

^aAssessment time point = point at which assessment is performed in weeks after surgery or calendar date (in case of study records being the outcome measurement). 0 weeks = preoperative baseline assessment. ^b QoL quality of life