Table 2.

Observation instrument categories

Category	Observed Factor
-1-Temporal and spatial-related information	nursing home date weekday period and area of observation screening time & -ID	Field notes
-2-Infrastructural-related information	barriers to PA (+ photo) PA-provoking objects (e.g., balls) activity-enhancing potentials (walking aids) use of activity-enhancing potentials weekly activity plans
-3-Person-related information	gender personal categories (resident, caregiver, significant other) activity categories (passive, sitting, standing, seated rolling, walking +) gait patterns (overlapping, foot to foot, crotch length one foot, crotch length ≥ two feet)
-4-Group-related information	total number of people observed group interactions (verbal, non-verbal) overall activity (%) guided low threshold activities