A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Associations of age, body size, and maturation with physical activity intensity in different laboratory tasks in children (2021)

Haapala, E. A., Gao, Y., Rantalainen, T., & Finni, T. (2021). Associations of age, body size, and maturation with physical activity intensity in different laboratory tasks in children. Journal of Sports Sciences, 39(12), 1428-1435. https://doi.org/10.1080/02640414.2021.1876328

JYU-tekijät tai -toimittajat

Haapala, Eero
Gao, Ying
Rantalainen, Timo
Juutinen, Taija

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Haapala, Eero A.; Gao, Ying; Rantalainen, Timo; Finni, Taija

Lehti tai sarja: Journal of Sports Sciences

ISSN: 0264-0414

eISSN: 1466-447X

Julkaisuvuosi: 2021

Ilmestymispäivä: 20.01.2021

Volyymi: 39

Lehden numero: 12

Artikkelin sivunumerot: 1428-1435

Kustantaja: Routledge

Julkaisumaa: Britannia

Julkaisun kieli: englanti

DOI: https://doi.org/10.1080/02640414.2021.1876328

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus:

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/78698

Tiivistelmä

We investigated the associations of age, sex, body size, body composition, and maturity with measures of physical activity (PA) intensity in children. PA intensity was assessed using VO2 as % of VO2reserve or VO2 at ventilatory threshold (VT), muscle activity measured by textile electromyography, mean amplitude deviation (MAD) measured by accelerometry, and metabolic equivalent of task (MET) during laboratory activities.Age, stature, and muscle mass were inversely associated with VO2 as % of VO2reserve and % of VT, during walking or running on a treadmill for 4, 6, and 8 km/h (Spearman r = -0.645 to -0.358). Age was inversely associated with MAD during walking on treadmill for 4 km/h (r = -0.541) and positively associated with MAD during running on a treadmill for 8 km/h, playing hopscotch, and during self-paced running (r = 0.368 to 0.478). Fat mass was positively associated with VO2 as % of VO2reserve and VO2 as % of VO2 at VT and waist circumference was positively associated with VO2 as a % of VO2reserve and muscle activity during stair climbing (r = 0.416 to 0.519).Fixed accelerometry cut-offs used to define PA intensities should be adjusted for age, sex, body size, and body composition.

YSO-asiasanat: lapset (ikäryhmät); fyysinen aktiivisuus; hapenotto; elektromyografia; kehonkoostumus

Vapaat asiasanat: child; physical activity; accelerometry; electromyography; body composition

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