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Kinesiology

Walking

Patty S. Freedson

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A Comparison Of The Actigraph 7164 And The Actigraph Gt1m During Self-Paced Locomotion, Sarah Kozey, John Staudenmayer, Richard Troiano, Patty Freedson May 2010

A Comparison Of The Actigraph 7164 And The Actigraph Gt1m During Self-Paced Locomotion, Sarah Kozey, John Staudenmayer, Richard Troiano, Patty Freedson

Patty S. Freedson

Purpose—This study compared the ActiGraph accelerometer model 7164 (AM1) to the ActiGraph GT1M (AM2) during self-paced locomotion. Methods—Participants n = 116, 18–73y, mean BMI = 26.1) walked at self-selected slow, medium, and fast speeds around an indoor circular hallway (0.47km). Both activity monitors were attached to a belt secured to the hip and simultaneously collected data in 60 second epochs. To compare differences between monitors, the average difference (bias) in count output and steps output were computed at each speed. Time spent in different activity intensities (light, moderate, vigorous) based on the Freedson et al. cut-points was ...