Agreement of Step-Based Metrics From ActiGraph and ActivPAL Accelerometers Worn Concurrently Among Older Adults.

Eric T Hyde,Steve Nguyen,Fatima Tuz-Zahra,Christopher C Moore,Mikael Anne Greenwood-Hickman,Rod L Walker,Loki Natarajan,Dori Rosenberg,John Bellettiere

Journal for the measurement of physical behaviour（2022）

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摘要

Compared with estimates from the AP, the AG underestimated daily step counts by approximately 1,800 steps/day, while the AG overestimated by approximately 5,000 steps/day. However, peak step cadence estimates generated from the AG and AP had high agreement (MAPE ≤ 7.0%). Additional convergent validation studies of step-based metrics from concurrently worn accelerometers are needed for improved understanding of between-device agreement.

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关键词

cadence,gait,physical activity,wearable devices

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