Table 2.

Elements of motivation identified using the COM-B model.

References	COM-B model components
	Capability	Opportunity	Motivation
Adcock et al. (54)	Spoken and written instructions.	• Exercise at home. • Phone support available.	Providing visual and auditory feedback.
Chao et al. (43)	Health education.	• Supervision provided. • Participants supported to encourage each other. • 4-point walker was provided for safety.	Automatically increased the levels.
Chen et al. (44)			Received real time feedback. Automatic measurement of levels. Provided accuracy movements.
Cho et al. (60)			Participants could see their feedback.
Eggenberger et al. (58)	Individualized exercises.	• Supervision provided. • Rope provided to confirm the safety.	Participants could see their results. Provided accuracy movements.
Eggenberger et al. (57)	Individualized exercises.	• Supervision provided. • Rope provided to maintain balance.	• Participants could see their results. • Provided accuracy movements. • Automatically increased the levels.
Gschwind et al. (45)	Home visit to ensure training.	• Exercise at home. • Phone support available and home visit if required. • Reminders through the tablet and assistant.	Participants could see their results and get feedback.
Gschwind et al. (46)	Provided manuals and instructions.	Exercise at home.	• Received phone calls monthly. • Participants could see their results.
Katajapuu et al. (47)		• Given voucher of $70. • Supervision provided to confirm the safety.	Enjoyment for exercise.
Lee et al. (48)	Fall prevention education.	Assistants support to encourage participants.	• Enjoyment for exercise. • Providing visual and auditory feedback.
Li et al. (56)		Given voucher of $10 per hour.	Enjoyment for exercise. Providing visual and auditory feedback. Participants could select the levels.
Park et al. (49)			• Enjoyment for exercise. • Providing visual and auditory feedback.
Park and Yim (55)	Extra conventional exercises for 30 min.		Enjoyment for exercise.
Phirom et al. (50)			Enjoyment for the targets. Automatically increased the levels.
Sadeghi et al. (59)	Individualized exercises.		• Automatically increased the levels. • Participants could see their results and get feedback.
Sadeghi et al. (51)	Individualized exercises.		Increment of levels/repetitions.
Sato et al. (52)			• Enjoyment for exercise. • Automatically increased the levels.
Schoene et al. (53)	• Extra session (CSRT) to enhance movement speed. • Manual with step by step instructions.	• Exercise at home. • Phone support available.	• Enjoyment for exercise to target. • Participants could see their feedback and select the levels.