I am trying to find validated cut-points for PA in adolescents using wrist-worn ActiGraph wGT3X+ accelerometers. For the young participants in my cohort I am using the cut points proposed by Chandler (Paediatric Obesity; 2016; 11[2]) but these are only applicable to children aged 8-12 years. I have so far been unable to find accepted cut points for adolescents for wrist-worn devices.
I think this data is not availibale. You'll have to collect your own validated data and share with the world.
I would like to recommend my collegue focused on Actigrphs Jan Dygryn
Brazendale et al., 2016: Equating accelerometer estimates among youth: The Rosetta Stone 2 will be your best overview of all cut-points available. You can find it on researchgate. A secondary consideration relates not to age, but to activity type. Keep in mind that you may find cut-points related to age but not to activity type. For example, when considering wrist worn cut-points, are your activities largely continuous or discrete in nature?
-Brazendale, K., Beets, M. W., Bornstein, D. B., Moore, J. B.,
Pate, R. R., Weaver, R. G., … van Sluijs, E. M. F. (2016).
Equating accelerometer estimates among youth: The
Rosetta Stone 2. Journal of Science and Medicine in Sport,
19(3), 242–249. doi:10.1016/j.jsams.2015.02.006.
-Crouter, S. E., Flynn, J. I., & Bassett, D. R., Jr. (2015).
Estimating physical activity in youth using a wrist
accelerometer. Medicine and Science in Sports and
Exercise, 47(5), 944. doi:10.1249/MSS.0000000000000651
-Chandler, J. L., Brazendale, K., Beets, M. W., &
Mealing, B. A. (2016). Classification of physical activity
intensities using a wrist-worn accelerometer in 8-12-
year-old children. Pediatric Obesity, 11(2), 120–127.
doi:10.1111/ijpo.12033
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