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30.04.2018 | Ausgabe 5/2018

International Journal of Behavioral Medicine 5/2018

Accelerometer-Derived Activity Phenotypes in Young Adults: a Latent Class Analysis

Zeitschrift:
International Journal of Behavioral Medicine > Ausgabe 5/2018
Autoren:
Erin K. Howie, Anne L. Smith, Joanne A. McVeigh, Leon M. Straker
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s12529-018-9721-4) contains supplementary material, which is available to authorized users.

Abstract

Purpose

To identify “activity phenotypes” from accelerometer-derived activity characteristics among young adults.

Methods

Participants were young adults (n = 628, mean age, 22.1, SD 0.6) in the Raine Study in Western Australia. Sex-specific latent class analyses identified sub-groups using eight indicators derived from 7-day hip-worn Actigraph GT3X+ accelerometers: daily steps, total daily moderate-to-vigorous physical activity (MVPA), MVPA variation, MVPA intensity, MVPA bout duration, sedentary-to-light ratio, sedentary-to-light ratio variation, and sedentary bout duration.

Results

Five activity phenotypes were identified for women (n = 324) and men (n = 304). Activity phenotype 1 for both women (35%) and men (30%) represented average activity characteristics. Phenotype 2 for women (17%) and men (16%) was characterized by below average total activity and MVPA (10.6 and 16.7 min of MVPA/day, women and men respectively). Phenotype 3 for women (15%) and men (23%) was characterized by below average total physical activity, average MVPA (32.6 and 36.5 min/day), high sedentary-light ratio and long sedentary bouts. Phenotype 4 differed between women (29%) and men (18%) but both had low sedentary-to-light ratios and shorter sedentary bouts. Finally, phenotype 5 in both women (4%) and men (12%) was characterized by extreme MVPA metrics (81.3 and 96.1 min/day).

Conclusions

Five activity phenotypes were identified for each gender in this population of young adults which can help design targeted interventions to enhance or modulate activity phenotypes.

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Zusatzmaterial
ESM 1 (DOCX 15.9 kb)
12529_2018_9721_MOESM1_ESM.docx
ESM 2 (DOCX 14.5 kb)
12529_2018_9721_MOESM2_ESM.docx
ESM 3 (DOCX 14.3 kb)
12529_2018_9721_MOESM3_ESM.docx
ESM 4 (DOCX 16.6 kb)
12529_2018_9721_MOESM4_ESM.docx
Literatur
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