Comparison of Two Accelerometers for Measuring Physical Education Physical Activity in 8th Grade Youth

McClain, James J.; Johnson, Tyler G.; Brusseau, Timothy A.; Washington, Tracy L.; Tudor-Locke, Catrine; Darst, Paul W.

doi:10.1249/01.mss.0000273662.86629.93

Cited by 1 publication

(2 citation statements)

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“…Previous studies using activity monitors with the same internal sensor as the NL-1000 have shown agreement with the ActiGraph accelerometer when measuring time spent in MVPA (McClain, Johnson, Brusseau, Washington, Tudor-Locke, & Darst, 2007a;McClain et al, 2007b). These studies used different ActiGraph epoch lengths (15 sec and 30 sec) than the current study and different cutpoints and equations to determine MVPA thresholds.…”

Section: Discussionmentioning

confidence: 88%

“…Because of this, the use of longer epochs tends to produce lower estimates of MVPA time compared to shorter epochs (Mahar, Smith, Rowe, DuBose, & McCammon, 2008). This issue aside, McClain et al (2007a) found that the NL-1000 set at the default MVPA threshold of Level 4 produced similar estimates of MVPA to the ActiGraph in eighth-grade PE. The ActiGraph was used in conjunction with a cutpoint of 3,000 counts/min corresponding to 4.6 METs, derived from the equation of Treuth et al (2004) developed in eighth-grade girls.…”

Section: Discussionmentioning

confidence: 96%

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Validity of the New Lifestyles NL-1000 Accelerometer for Measuring Time Spent in Moderate-to-Vigorous Physical Activity in School Settings

McMinn

Rowe

Stark

et al. 2010

Measurement in Physical Education and Exercise Science

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Current interest in promoting physical activity in the school environment necessitates an inexpensive, accurate method of measuring physical activity in such settings. Additionally, it is recognized that physical activity must be of at least moderate intensity in order to yield substantial health benefits. The purpose of the study, therefore, was to determine the validity of the New Lifestyles NL-1000 (New Lifestyles, Inc., Lee's Summit, Missouri, USA) accelerometer for measuring moderate-to-vigorous physical activity in school settings, using the Actigraph GT1M (ActiGraph, Pensacola, Florida, USA) as the criterion. Data were collected during a cross-country run (n = 12), physical education (n = 18), and classroom-based physical activities (n = 42). Significant and meaningful intraclass correlations between methods were found, and NL-1000 estimates of moderate-to-vigorous physical activity were not meaningfully different from GT1M-estimated moderate-to-vigorous physical activity. The NL-1000 therefore shows promising validity evidence as an inexpensive, convenient method of measuring moderate-to-vigorous physical activity in school settings.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 96%