학술논문

Wrist‐worn accelerometers: Influence of decisions during data collection and processing: A cross‐sectional study
Document Type
article
Source
Health Science Reports, Vol 7, Iss 1, Pp n/a-n/a (2024)
Subject
accelerometry
actiGraph
GGIR
methods
physical activity
sedentary behavior
Medicine
Language
English
ISSN
2398-8835
Abstract
Abstract Background and Aims Accelerometers collect data in an objective way, however, a number of decisions must be done during data collection, processing and output‐interpretation. The influence of those decisions is seldom investigated, reported, or discussed. Herein, we examined the influence of different decisions on the outcomes: daily minutes of moderate‐to‐vigorous physical activity (MVPA), inactivity and light physical activity (LPA). Methods In total, 156 participants wore an accelerometer (ActiGraph wGT3X‐BT) on their nondominant wrist for 7 days. Data collection was conducted from February 2017 to June 2018. Data was processed using the R‐package GGIR and default settings were compared to by‐the‐literature‐suggested options. The output was examined using paired t‐tests. Results When comparing two commonly used MVPA‐cut‐points, default and Hildebrand et al. we found a marginal difference (0.4 min, 1.0%, p