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Accelerometry-Derived Physical Activity Correlations Between Parents and Their Fourth-Grade Child Are Specific to
Insights
Parent and child physical activity (PA) show weak to moderate associations, particularly before school and on weekends. Interventions to boost PA in families should consider these specific time patterns for both children and adults.
Area of Science:
- Pediatric Health
- Behavioral Science
- Public Health
Background:
- Understanding parent-child physical activity (PA) dynamics is crucial for promoting healthy lifestyles.
- Free-living studies offer valuable insights into real-world PA behaviors.
- Accelerometry provides objective measures of PA in diverse populations.
Purpose of the Study:
- To investigate the relationship between parent and child physical activity levels.
- To explore these relationships in a free-living environment using objective measures.
- To identify specific times of day or week when parent-child PA is most associated.
Main Methods:
- High-frequency accelerometry data collected over 7 days from 168 parent-child dyads.
- Objective measurement of moderate-to-vigorous physical activity (MVPA) using validated cut points.
- Statistical analysis using bivariate and partial correlations to examine PA associations.
Main Results:
- Weak to moderate positive correlations found between child and parent MVPA across different times of day (before school, after school, evening) and on weekends.
- Significant associations persisted even after controlling for individual PA levels, especially before school and on weekends.
- Parents of more active children also exhibited higher PA levels during the evening.
Conclusions:
- A notable association exists between parent and child physical activity, particularly during before-school and weekend periods.
- Future interventions should consider time-specific and dyad-specific PA patterns.
- Targeted strategies are needed to enhance PA in both children and adults within family units.
Background:
The purpose of this study was to employ high-frequency accelerometry to explore parent-child physical activity (PA) relationships across a free-living sample.
Methods:
We recorded 7 days of wrist-mounted accelerometry data from 168 dyads of elementary-aged children and their parents. Using a custom MATLAB program (Natick, MA), we summed child and parent accelerations over 1 and 60 seconds, respectively, and applied published cut points to determine the amount of time spent in moderate-vigorous PA (MVPA). Bivariate and partial correlations examined parent-child relationships between percentage of time spent in MVPA.
Results:
Weak to moderate positive correlations were observed before school (r = .326, P < .001), after school (r = .176, P = .023), during the evening (r = .213, P = .006), and on weekends (r = .231, P = .003). Partial correlations controlling for parent-child MVPA revealed significant relationships during the school day (r = .185, P = .017), before school (r = .315, P < .001), and on weekends (r = .266, P = .001). In addition, parents of more active children were significantly more active than parents of less active children during the evening.
Conclusions:
These data suggest that there is some association between parent-child PA, especially before school and on weekends. Future interventions aiming to increase PA among adults and children must consider patterns of MVPA specific to children and parents and target them accordingly.
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