In conclusion , very little is known about sedentary behaviors other than screen time in this age group .
Although highly variable , findings suggest that children are already engaging in high levels of screen time by age 2 and the majority exceed current recommendations
Sedentary behavior has negative health outcomes , evident even in young children .
Identifying the prevalence of sedentary behavior in children < 2years is important for determining the necessity for intervention strategies .
The aim of this systematic review was to determine the prevalence of sedentary behavior in children < 2years .
Television Viewing in Infancy and Child Cognition at 3 Years of Age in a US Cohort
OBJECTIVE . To examine the extent to which  infant television viewing  is associated with language and visual motor skills at 3 years of age . MEASURES . We studied 872 children who were participants in Project Viva , a prospect i ve cohort . The design used was a longitudinal survey , and the setting was a multisite group practice in Massachusetts . At 6 months , 1 year , and 2 years , mothers reported the number of hours their children watched television in a 24-hour period , from which we derived a weighted average of daily television viewing . We used multivariable regression analyses to predict the independent associations of television viewing between birth and 2 years with Peabody Picture Vocabulary Test III and Wide-Range Assessment of Visual Motor Abilities scores at 3 years of age . RESULTS . Mean daily television viewing in infancy ( birth to 2 years ) was 1.2 ( SD : 0.9 ) hours , less than has been found in other studies of this age group . Mean Peabody Picture Vocabulary Test III score at age 3 was 104.8 ( SD : 14.2 ) ; mean st and ardized total Wide-Range Assessment of Visual Motor Abilities score at age 3 was 102.6 ( SD : 11.2 ) . After adjusting for maternal age , income , education , Peabody Picture Vocabulary Test III score , marital status , and parity , and child 's age , gender , birth weight for gestational age , breastfeeding duration , race/ethnicity , primary language , and average daily sleep duration , we found that each additional hour of television viewing in infancy was not associated with Peabody Picture Vocabulary Test III or total st and ardized Wide-Range Assessment of Visual Motor Abilities scores at age 3 . CONCLUSION . Television viewing in infancy does not seem to be associated with language or visual motor skills at 3 years of age
In conclusion , very little is known about sedentary behaviors other than screen time in this age group .
Although highly variable , findings suggest that children are already engaging in high levels of screen time by age 2 and the majority exceed current recommendations
Sedentary behavior has negative health outcomes , evident even in young children .
Identifying the prevalence of sedentary behavior in children < 2years is important for determining the necessity for intervention strategies .
The aim of this systematic review was to determine the prevalence of sedentary behavior in children < 2years .