Table 1.

Accelerometer Data-Collection and -Analysis Methods^a

Item	Method
Model of accelerometer	ActiGraphb model wGT3X-BT and GT9X Link monitors
Data-collection sampling rate	30 Hz7
Data-analysis epoch length	60 s20
Placement of accelerometer	Anterior axillary line, right hip20
No. of participants receiving accelerometer	99
Accelerometer distribution	In person
Data collection at each time point	7 d
Criteria for defining nonwearing of accelerometer	Minimum length: 90 min Small window length: 30 min Spike tolerance: 2 min21
Accelerometer data needed to be included in analysis
No. of valid days	≥4 (3 weekend days, 1 weekend)21
No. of min/d	600 min21
Accelerometer-data physical activity outcome of interest and interpretation method	Steps per min

^aBased on recommendations of accelerometry reporting methods.¹⁹

^bActiGraph, LLC, Pensacola, FL.