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Table 1 Summary of results

From: Physical activity and prospective associations with indicators of health and development in children aged <5 years: a systematic review

Health or developmental outcome

Intervention studiesa

Longitudinal studiesa

Total effect and evidence

Body composition (15 studies, 3448 participants)a

 BMI

0 0 0

+ 0 0 0 0 0 - - -

Based on inconsistent findings among the studies with high methodological quality, there is insufficient evidence for the effects of physical activity on body composition in young children (< 5 yrs).

 Fat percentage

+ 0 0

+ 0

 Fat mass

+

+ + 0 0 0 0

 Fat free mass

0

+ + 0

 Waist/hip ratio

 

+

 Weight

 

0 -

Motor development (11 studies, 1281 participants)

 Total motor score

+ + + + 0

0

Based on consistent findings among studies with weak-to-moderate methodological quality, there is moderate evidence for the positive effects of physical activity on motor development in young children (< 5 yrs).

 Total gross motor score

0

 

 Total fine motor score

 

0

 Locomotor score

+ +

 

 Object control score

+ + 0

 

 Balance score

+ +

 

 Manual dexterity score

0

 

 Gross motor milestones

+

+

Cognitive development (10 studies, 4939 participants)

 School outcomes (e.g. math, language)

+ + + + + +

–

Based on consistent findings among studies with weak-to-moderate methodological quality, there is moderate evidence for the positive effects of physical activity on cognitive development in young children (< 5 yrs).

 Acute effects (e.g. concentration)

+ + 0

 

Cardiovascular health (7 studies, 1381 participants)

 Blood pressure

+

+ 0

Based on inconsistent findings among the studies with high methodological quality, there is insufficient evidence for the effects of physical activity on cardiovascular health in young children (< 5 yrs).

 Insulin

 

0 0

 Triglycerides

 

+ 0

 Cholesterol

 

0 0

 Adiponectin

 

+

 Glucose, leptin, hsCRP

 

0

 Lipoprotein

 

0

 Total metabolic score

 

+

 Serum lipids and lipoproteins

 

0

 Cardiovascular fitness

 

+ +

 Arterial stiffness

 

+

Social-emotional development (2 studies, 7038 participants)

 Behavior

 

–

Based on inconsistent findings and a limited amount of available studies, there is insufficient evidence for the effects of physical activity on social-emotional development in young children (< 5 yrs).

 Quality of Life

 

0

Bone health (2 studies, 2907 participants)

 Bone density

 

0

Based on inconsistent findings and a limited amount of available studies, there is insufficient evidence for the effects of physical activity on bone health in young children (< 5 yrs).

 Fractures

 

–

  1. aOnly studies that conducted statistical analyses are included in the summary table; + = study adding evidence for a positive association; − = study adding evidence for a negative association; 0 = study indicating no evidence for an association; a = a positive association means positive for children’s health; Bold values = studies of high methodological quality; BMI Body mass index, hsCRP High-sensitivity C-reactive protein