Table 3.

Accelerometry data collection and processing parameters

Accelerometer Model	ActiGraph wGT3X-BT (V.6.13.4; firmware V.1.9.2)
Serial number range	Twenty unique devices will be used ranging from MOS2E09190601 to MOS2E24190146 averaging six deployments per device (same serial used for baseline and follow-up wear periods)
Piezosensor orientation	Triaxial
Mode setup	Mode 29 (x, y, z, steps, lux)
Original sample rate	100 Hz (.gt3x file format)
Deployment method	Baseline: Fitted by research team on day 0 (baseline PR assessment) Fitted by participant on day 1 Follow-up: Fitted by research team day 0 (11th/12th session) Fitted by participant on day 1
Location worn	Anterior hip adjacent to the mid-line of the thigh
Requested days of wear	7 days of free living (days 1–7; 10 080 epochs)
Initialisation	Not deployed in delay mode in order to standardised capture of day 0 (00:00) with stop time based on date of first PR class (baseline) and data of discharge assessment (follow-up)
Wear instructions	Wear continuously except for sleep and water-based activities
Non-wear appropriation	≥60 min of consecutive 0 s with allowance for 2 min of interruptions were deemed biologically implausible and coded as non-wear
Valid day criteria	≥8 hours of valid waking wear time
Valid file	≥4 valid days for each of the two time points
Missing data	Data modelling or imputation will not be performed
Epoch length	60 s
Intensity classification (absolute)	Uniaxial (x-axis) cut-points as follows: sedentary time <100 cpm; light intensity 100–2019 cpm; moderate intensity 2020–5998 cpm; vigorous intensity ≥5999 cpm (moderate-to-vigorous intensity ≥2020 cpm)
Intensity classification (relative)	Uniaxial (x-axis) cut-points based on Endurance Shuttle Walk Test performance

PR, pulmonary rehabilitation.