Achieving Excellent Compliance In Multi-day Free-living Activity Monitoring In Elementary School Students: The IPLAY Study

Ward, Valerie R.; Schaefer, Christine; Lampe, Sarah; Nace, Heidi J.; Kutchman, Eve; Brink, Lois; Browning, R.

doi:10.1249/01.mss.0000401950.75225.bb

Cited by 2 publications

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“…Accelerometry has become an objective means for monitoring activity in free-living conditions and can be worn on the wrist, hip or leg. Thigh-mounted accelerometers have similar accuracy compared to the hip [44–46] and result in excellent compliance [47–49]. Acceleration data can provide an objective measure of the types of activity (e.g.…”

Section: Methodsmentioning

confidence: 99%

“…Acceleration data can provide an objective measure of the types of activity (e.g. sit vs. walk), as well as the intensity, duration and frequency of activity throughout the day [49,50]. Participants wear the accelerometer for seven consecutive days, except when engaging in water activities that submerge the body in water such as swimming and bathing.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Rationale and design for the community activation for prevention study (CAPs): A randomized controlled trial of community gardening

Litt

Alaimo

Buchenau

et al. 2018

Contemporary Clinical Trials

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Rationale and design for the community activation for prevention study (CAPs): A randomized controlled trial of community gardening

Litt

Alaimo

Buchenau

et al. 2018

Contemporary Clinical Trials

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show abstract

“…The wrist is an attractive location, particularly in children, given improvements in compliance typically observed. For example, in our large Intervention of PhysicaL Activity in Youth (IPLAY) study of approximately 1400 children over 3 years, we have achieved compliance rate of ~92–97% (34) (see Methods for additional IPLAY details). However, to date only one study has attempted to create cutpoints specific to the GENEActiv device when placed on the wrist in children.…”

Section: Introductionmentioning

confidence: 99%

Establishing and Evaluating Wrist Cutpoints for the GENEActiv Accelerometer in Youth

Schaefer

Nigg

Hill

et al. 2014

Medicine &Amp; Science in Sports &Amp; Exercise

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PURPOSE To establish physical activity (PA) intensity cutpoints for a wrist-mounted GeneActiv accelerometer (ACC) in elementary school-aged children. A second purpose was to apply cutpoints to a free-living sample and examine duration of PA based on continuous 1s epochs. METHODS Metabolic and ACC data were collected during nine typical activities in 24 children ages 6–11. Measured VO2 values were divided by Schofield-estimated resting values to determine METs. ACC data were collected at 75 Hz, band pass filtered and averaged over each one-second interval. Receiver Operator Characteristic (ROC) curves were used to establish cutpoints at <1.5, 1.5–3, 3–6 and ≥6 METs for sedentary, light, moderate and vigorous activity, respectively. These cutpoints were applied to a free-living independent data set to quantify the amount of moderate-vigorous PA (MVPA) and to examine how bout length (1, 2, 3, 5, 10, 15 and 60 seconds) affected the accumulation of MVPA. RESULTS ROC yielded areas under the curve of 0.956, 0.946 and 0.940 for sedentary, moderate and vigorous intensities, respectively. Cutpoints for sedentary, moderate and vigorous intensities were 0.190, 0.314 and 0.998 g, respectively. Intensity classification accuracies ranged from 27.6% (light) to 88.7% (vigorous) when cutpoints were applied to the calibration data. When applied to free-living data (n=47 children ages 6–11), estimated daily MVPA was 308 minutes and decreased to 14.3 minutes when only including 1 min periods of continuous MVPA. CONCLUSION Cutpoints that quantify movements associated with moderate-vigorous intensity, when applied to a laboratory protocol, result in large amounts of accumulated MVPA using the 1s epoch compared to prior studies, highlighting the need for representative calibration activities and free-living validation of cutpoints and epoch length selection.

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Achieving Excellent Compliance In Multi-day Free-living Activity Monitoring In Elementary School Students: The IPLAY Study

Cited by 2 publications

References 0 publications

Rationale and design for the community activation for prevention study (CAPs): A randomized controlled trial of community gardening

Rationale and design for the community activation for prevention study (CAPs): A randomized controlled trial of community gardening

Establishing and Evaluating Wrist Cutpoints for the GENEActiv Accelerometer in Youth

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