Antecedents of children's physical activity intentions and behaviour: Predictive validity and longitudinal effects

Our aim in this study was to investigate the relationships between physical activity (PA), pain, and injury among children. Secondarily, we examined whether these relationships differed between children with normal versus excessive weight or obesity. This was a cross-sectional study of 102 children (57 girls) aged 8–12 years old. We assessed the prevalence of moderate and vigorous PA using accelerometry over a seven-day period. We examined the associations between moderate PA, vigorous PA, pain presence, and injury presence using generalized estimating equations with a logit link and binomial distribution. We adjusted the obtained models for potential confounders and explored the moderating effect of weight status. We found no association between moderate PA and pain, but time spent in vigorous PA was associated with pain. Neither moderate or vigorous PA were associated with injury, and there was no moderating effect of weight status in these relationships. In summary, we found that objectively measured vigorous PA is associated with pain among 8–12 year old children. While these results should be replicated in longitudinal studies, they suggest that an association between vigorous PA and pain should be considered when developing PA interventions for children.

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Creating a Scalable Physical Activity Breaks Resource Through the Multisensory Multilevel Health Education Model: H.Y.P.E. The Breaks!

Health Promotion Practice ◽

10.1177/1524839921996348 ◽

2021 ◽

Vol 22 (1_suppl) ◽

pp. 101S-110S

Author(s):

Ewelina M. Swierad ◽

Lori Rose Benson ◽

Olajide Williams

Keyword(s):

Physical Activity ◽

Health Education ◽

Hip Hop ◽

Classroom Behavior ◽

Physically Active ◽

School Day ◽

Current Article ◽

Education Model ◽

Program Components ◽

Children’S Physical Activity

Physically active children have lower rates of obesity, diabetes, hypertension, and depression than their inactive counterparts, and further evidence suggests that integrating physical activity breaks into the school day improves children’s classroom behavior, fitness, and cognitive functions. The current article focuses on the development and implementation of free, scalable, short activity breaks called H.Y.P.E. The Breaks! (Helping Young People Energize)—a series of 2-, 6-, and 10-minute-long dance and hip-hop–based physical activity videos, which can be used in the classroom or at home. H.Y.P.E. The Breaks! is deconstructed through the lens of the multisensory multilevel health education model, which leverages art, culture, and science in the design and implementation of health programs, and highlights the importance of framing and operationalizing program components across the different behavioral levels of influence of the socioecological model. The article also discusses the uptake of H.Y.P.E. The Breaks! during the COVID-19 (coronavirus disease 2019) pandemic, when major declines in children’s physical activity were observed.

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Latinx Mothers’ Perception of Grandparents’ Involvement in Children’s Physical Activity

Journal of Intergenerational Relationships ◽

10.1080/15350770.2021.1897726 ◽

2021 ◽

pp. 1-18

Author(s):

Hui Xie ◽

Annette Besnilian ◽

David Boyns

Keyword(s):

Physical Activity ◽

Children’S Physical Activity

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Validity, reliability, and calibration of the physical activity unit 7 item screener (PAU-7S) at population scale

International Journal of Behavioral Nutrition and Physical Activity ◽

10.1186/s12966-021-01169-w ◽

2021 ◽

Vol 18 (1) ◽

Author(s):

Helmut Schröder ◽

Isaac Subirana ◽

Julia Wärnberg ◽

María Medrano ◽

Marcela González-Gross ◽

...

Keyword(s):

Physical Activity ◽

Predictive Validity ◽

Internal Consistency ◽

Regression Models ◽

Weighted Kappa ◽

Linear Regression Models ◽

Retest Reliability ◽

Activity Unit ◽

Test Retest Reliability ◽

Acceptable Internal Consistency

Abstract Background Validation of self-reported tools, such as physical activity (PA) questionnaires, is crucial. The aim of this study was to determine test-retest reliability, internal consistency, and the concurrent, construct, and predictive validity of the short semi-quantitative Physical Activity Unit 7 item Screener (PAU-7S), using accelerometry as the reference measurement. The effect of linear calibration on PAU-7S validity was tested. Methods A randomized sample of 321 healthy children aged 8–16 years (149 boys, 172 girls) from the nationwide representative PASOS study completed the PAU-7S before and after wearing an accelerometer for at least 7 consecutive days. Weight, height, and waist circumference were measured. Cronbach alpha was calculated for internal consistency. Test-retest reliability was determined by intra-class correlation (ICC). Concurrent validity was assessed by ICC and Spearman correlation coefficient between moderate to vigorous PA (MVPA) derived by the PAU-7S and by accelerometer. Concordance between both methods was analyzed by absolute agreement, weighted kappa, and Bland-Altman statistics. Multiple linear regression models were fitted for construct validity and predictive validity was determined by leave-one-out cross-validation. Results The PAU-7S overestimated MVPA by 18%, compared to accelerometers (106.5 ± 77.0 vs 95.2 ± 33.2 min/day, respectively). A Cronbach alpha of 0.76 showed an acceptable internal consistency of the PAU-7S. Test-retest reliability was good (ICC 0.71 p < 0.001). Spearman correlation and ICC coefficients of MVPA derived by the PAU-7S and accelerometers increased from 0.31 to 0.62 and 0.20 to 0.62, respectively, after calibration of the PAU-7S. Between-methods concordance improved from a weighted kappa of 0.24 to 0.50 after calibration. A slight reduction in ICC, from 0.62 to 0.60, yielded good predictive validity. Multiple linear regression models showed an inverse association of MVPA with standardized body mass index (β − 0.162; p < 0.077) and waist to height ratio (β − 0.010; p < 0.014). All validity dimensions were somewhat stronger in boys compared to girls. Conclusion The PAU-7S shows a good test-retest reliability and acceptable internal consistency. All dimensions of validity increased from poor/fair to moderate/good after calibration. The PAU-7S is a valid instrument for measuring MVPA in children and adolescents. Trial registration Trial registration numberISRCTN34251612.

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