Table 1.

Measures and assessment time points

	Enrolment	Baseline	3 m	12 m
Eligibility screen	x
Informed consent	x
Randomization	x
Patient characteristics		x
Adherence-related measures
Compliance (Primary)			x	x
IPAQ-E		x	x	x
ACTi graph monitor			x
Evaluation of the tool
System Usability Scale			x
Safety				x
Feasibility	x		x	x
Clinical outcome
WOMAC		x	x	x
Timed up and go		x	x
Five times sit-to-stand test		x	x
Knee ROM		x	x
Pain		x	x	x

Abbreviations: IPAQ-E: International physical activity questionnaire; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index; ROM: Range of motion