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Article

Towards a Functional Approach to the Assessment of Daily Life Physical Activity in Children: Are the PAQ-C and Fitbit Flex-2 Technically Adequate?

1
School of Physical Education and Sport Science, National and Kapodistrian University of Athens, 17237 Athens, Greece
2
School of Physical Education and Sport Science, Democritus University of Thrace, 69100 Komotini, Greece
3
EllinoGermaniki Agogi, 153 51 Athens, Greece
4
TECNALIA, Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(22), 8503; https://doi.org/10.3390/ijerph17228503
Received: 25 October 2020 / Revised: 10 November 2020 / Accepted: 12 November 2020 / Published: 17 November 2020
(This article belongs to the Special Issue Mental Health and Well-Being in Adolescence: Environment and Behavior)
Considering the need for functional physical activity (PA) measures in PA settings, this study sought to determine the technical adequacy of the Physical Activity Questionnaire for Older Children (PAQ-C) and the Fitbit Flex-2, two instruments with promising features for wide use, using the Actigraph GT3X+ accelerometer as the criterion reference. A total of 218 Greek children (94 boys, 124 girls; mean age = 10.99 ± 1.52 years) volunteered to join in. Participants wore the PA trackers for seven days and completed the PAQ-C. Moreover, a sub-group (n = 60) recompleted the PAQ-C after a week. Results revealed acceptable internal consistency and excellent test–retest reliability for the PAQ-C. Regarding concurrent validity, weak to moderate correlations with PA parameters recorded by the GT3X+ were revealed for the total PAQ-C and were excellent for the Flex-2, while a Bland–Altman plot indicated good agreement. Finally, in alignment with relevant literature, significant gender, but no age, differences were found in participants’ PA records in all the tools applied. The above results support the use of the PAQ-C and the Fitbit Flex-2 in children. Considering that they shed light into different parameters of children’s habitual PA, their combined utilisation, providing comprehensive information, is strongly recommended. View Full-Text
Keywords: validity; reliability; Actigraph GT3X+; self-report validity; reliability; Actigraph GT3X+; self-report
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MDPI and ACS Style

Venetsanou, F.; Emmanouilidou, K.; Soutos, K.; Sotiriou, S.A.; Bastida, L.; Moya, A.; Kambas, A. Towards a Functional Approach to the Assessment of Daily Life Physical Activity in Children: Are the PAQ-C and Fitbit Flex-2 Technically Adequate? Int. J. Environ. Res. Public Health 2020, 17, 8503. https://doi.org/10.3390/ijerph17228503

AMA Style

Venetsanou F, Emmanouilidou K, Soutos K, Sotiriou SA, Bastida L, Moya A, Kambas A. Towards a Functional Approach to the Assessment of Daily Life Physical Activity in Children: Are the PAQ-C and Fitbit Flex-2 Technically Adequate? International Journal of Environmental Research and Public Health. 2020; 17(22):8503. https://doi.org/10.3390/ijerph17228503

Chicago/Turabian Style

Venetsanou, Fotini, Kyriaki Emmanouilidou, Konstantinos Soutos, Sofoklis A. Sotiriou, Leire Bastida, Ana Moya, and Antonis Kambas. 2020. "Towards a Functional Approach to the Assessment of Daily Life Physical Activity in Children: Are the PAQ-C and Fitbit Flex-2 Technically Adequate?" International Journal of Environmental Research and Public Health 17, no. 22: 8503. https://doi.org/10.3390/ijerph17228503

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