Accelerometer-measured physical activity among adolescents in a multicultural area characterized by low socioeconomic status. 
The aim of this cross-sectional study was to describe and analyze accelerometer-measured sedentary time and physical activity (PA) among adolescents in a multicultural area characterized by low socioeconomic status (SES).  Seventh-graders (n=114 (girls n=66), mean age: 12.8±0.5 y) were recruited from three schools in a multicultural area of the city of Gothenburg, Sweden.  Sedentary time and PA were measured with ActiGraph™ accelerometers.  Of total wear-time, 70 (±6)% was sedentary, with girls being more sedentary than boys.  Girls had less light PA (LPA) and moderate-to-vigorous PA (MVPA) than boys.  Similar patterns were shown during in-school and out-of-school hours.  During wear-time, 53% had a mean of ≥60 min of MVPA per day, but only 6% of the girls and 24% of the boys were sufficiently physically active every day.  Girls had more sedentary bouts of ≥10 min and fewer MVPA bouts of ≥5 min per day than boys.  Those who participated in organized sports spent a mean of 15 more minutes of MVPA per day compared to those who did not.  No association was observed between body mass index (BMI) and sedentary time and PA.  Only a few adolescents from a Swedish multicultural area characterized by low SES met the PA recommendations every day, and girls were more sedentary and less physically active than boys.  Adolescents involved in organized sports had more of MVPA per day than their non-involved peers.  Sedentary time and PA were not related to BMI.