Preschool Children Physical Activity Measurement: Importance of Epoch Length Choice | Zendy

Susana Vale | Zendy; Rute Santos | Zendy; Pedro Silva | Zendy; Luísa SoaresMiranda | Zendy; Jorge Mota | Zendy

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Preschool Children Physical Activity Measurement: Importance of Epoch Length Choice

Author(s) -

Susana Vale,

Rute Santos,

Pedro Silva,

Luísa SoaresMiranda,

Jorge Mota

Publication year - 2009

Publication title -

pediatric exercise science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.839

H-Index - 63

eISSN - 1543-2920

pISSN - 0899-8493

DOI - 10.1123/pes.21.4.413

Subject(s) - epoch (astronomy) , physical activity , medicine , significant difference , demography , psychology , physical therapy , physics , astronomy , stars , sociology

The purpose of this study was twofold: first to document the gender differences in Moderate to Vigorous Physical Activity (MVPA) according to two epoch systems (5 vs. 60 s) in preschoolers, and, second to document the differences in physical activity (PA) patterns according to two different epoch choices. The sample comprised 59 preschoolers (31 girls) aged 2-5 years old. PA was assessed by accelerometer during school hours. The time spent in MVPA was significantly higher (p < .001) when a 5-s epoch was considered compared to the 60-s epoch, regardless gender. Further, it was found a difference of ?17 min difference between the 2 epoch systems for MVPA. Different epoch times might affect the time spent in MVPA among preschool children.

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