Associations between objective ly measured total sedentary time and indicators of adiposity and motor development were predominantly null .
Associations between screen time and indicators of adiposity , motor or cognitive development , and psychosocial health were primarily unfavourable or null .
Associations between time spent seated ( e.g. , in car seats or strollers ) or in the supine position , and indicators of adiposity and motor development , were primarily unfavourable or null .
Conclusions These findings continue to support the importance of minimizing screen time for disease prevention and health promotion in the early years , but also highlight the potential cognitive benefits of interactive non-screen-based sedentary behaviours such as reading and storytelling .
Background The purpose of this systematic review was to examine the relationships between  sedentary behaviour ( SB ) and health indicators in children aged 0 to 4 years , and to determine what doses of SB ( i.e. , duration , patterns [ frequency , interruptions ] , and type ) were associated with health indicators .
An intervention to preschool children for reducing screen time: a randomized controlled trial.
BACKGROUND Screen time , defined as time spent watching television , DVDs , or videos or playing computer or video games , has been related to serious health consequences in children , such as impaired language acquisition , violent behaviour , tobacco smoking and obesity . Our aim was to determine if a simple intervention aim ed at preschool-aged children , applied at the health maintenance visits , in the primary care setting , would be effective in reducing screen time . METHODS We used a two group r and omized controlled trial design . Two- to 6-year-old children and their parents were r and omly assigned to receive an intervention to reduce their screen time , BMI and parental report of aggressive behaviour . At the end of the intervention we made home visits at 2 , 6 and 9 months and the parents completed question naire . RESULTS Parents in the intervention group reported less screen time and less aggressive behaviour than those in the control group but there were no differences in BMI z scores . CONCLUSIONS This study shows that a preschool-based intervention can lead to reductions in young children 's television/video viewing
Associations between objective ly measured total sedentary time and indicators of adiposity and motor development were predominantly null .
Associations between screen time and indicators of adiposity , motor or cognitive development , and psychosocial health were primarily unfavourable or null .
Associations between time spent seated ( e.g. , in car seats or strollers ) or in the supine position , and indicators of adiposity and motor development , were primarily unfavourable or null .
Conclusions These findings continue to support the importance of minimizing screen time for disease prevention and health promotion in the early years , but also highlight the potential cognitive benefits of interactive non-screen-based sedentary behaviours such as reading and storytelling .
Background The purpose of this systematic review was to examine the relationships between  sedentary behaviour ( SB ) and health indicators in children aged 0 to 4 years , and to determine what doses of SB ( i.e. , duration , patterns [ frequency , interruptions ] , and type ) were associated with health indicators .