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Published on: July 27, 2022
Inter-relationships among physical activity, body fat, and motor performance in 6- to 8-year-old Danish children
Kyle M Morrison1, Anna Bugge, Bianca El-Naaman
1Helen DeVos Children's Hospital Healthy Weight Center, Grand Rapids, MI, USA.
Insights
Physical activity (PA) and percent body fat (%BF) complexly influence children's motor performance (MP). Lower %BF and higher PA generally correlate with better MP, emphasizing early skill development.
Area of Science:
- Pediatric Health
- Exercise Science
- Child Development
Background:
- Understanding the interplay between physical activity (PA), body composition, and motor performance (MP) is crucial for child development.
- Previous research indicates potential links, but complex interactions require further investigation in diverse pediatric populations.
Purpose of the Study:
- To investigate the interrelationships among PA, percent body fat (%BF), and MP in 6- to 8-year-old children.
- To identify how different combinations of PA and %BF influence motor skills in early childhood.
Main Methods:
- Utilized accelerometers to measure PA in 498 Danish children aged 6-8 years.
- Assessed %BF using skinfold measurements and evaluated MP through the "Koordinations Test für Kinder" and a throwing accuracy test.
Main Results:
- PA showed significant correlations with MP, but not with %BF.
- Strongest correlations were observed between %BF and MP.
- Children with low %BF and high PA demonstrated superior MP compared to those with high %BF and low PA.
- Within high %BF groups, higher PA was associated with better MP.
- Gender-specific patterns emerged, with boys in the low %BF/high MP group showing higher PA, and girls in the high %BF/high MP group exhibiting the highest PA.
Conclusions:
- The relationship between PA, %BF, and MP in children is intricate and multifaceted.
- Early development of fundamental motor skills is essential during childhood, influenced by body composition and activity levels.
Abstract:
This study examined the interrelationships among physical activity (PA), percent body fat (%BF), and motor performance (MP) in 498 6- to 8-year-old Danish children. PA was assessed by accelerometer, %BF was calculated from skinfolds, and the Koordinations Test für Kinder along with a throwing accuracy test was used to assess MP. PA was not correlated with %BF, but was significantly correlated with MP. The strongest correlations existed between %BF and MP. Low %BF/High PA had higher MP scores compared with High %BF/Low PA, and within the High %BF groups MP was higher in the High PA versus Low PA group. When comparing PA by %BF and MP groups, boys in the Low %BF/High MP had higher PA than both the Low %BF/Low MP and High %BF/Low MP groups. In girls, PA was highest in the High %BF/High MP group. This study highlights the complex interrelationships among PA, %BF, and MP in children and the need to develop fundamental motor skills during childhood.

