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Article

Accelerometer-Measured Physical Activity and Sedentary Behavior Levels and Patterns in Female Sixth Graders: The CReActivity Project

Department of Sport and Health Sciences, Technical University of Munich, 80992 Munich, Germany
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Int. J. Environ. Res. Public Health 2021, 18(1), 32; https://doi.org/10.3390/ijerph18010032
Received: 12 October 2020 / Revised: 16 December 2020 / Accepted: 21 December 2020 / Published: 23 December 2020
(This article belongs to the Special Issue Physical Activity and Health Behaviors in Children and Adolescents)
Regular physical activity (PA) and low levels of sedentary behavior (SB) have positive health effects on young people. Adolescent girls of low socioeconomic background represent a high-risk group with regard to physical inactivity and SB. In this study, accelerometer-measured levels of PA and SB of female sixth graders attending lower secondary schools in Germany are presented, patterns of PA and SB throughout the day are described and differences between weekdays and weekend days are analyzed. Data of 425 students of the CReActivity project were analyzed. Sampling and processing of accelerometer data followed recent recommendations, which had not been applied to data of a German-speaking sample before. The WHO recommendation of daily 60 min moderate-to-vigorous PA was fulfilled by 90.4% of the girls on weekdays and by 57.4% on weekend days. The significant weekday–weekend differences were mainly associated with active commuting to and from school. Students engaged in SB for more than 8 h on weekdays and for over 7 h on weekend days. The results suggest a strong need for interventions increasing PA and reducing SB, especially during school hours and on weekends. Furthermore, a comparison with methods and results of previous studies highlights the need to follow recent criteria in accelerometer data sampling and processing to ensure an accurate and valid differentiation between PA-related risk groups and non-risk groups. View Full-Text
Keywords: accelerometry; secondary school; female; sedentariness; activity accelerometry; secondary school; female; sedentariness; activity
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MDPI and ACS Style

Bachner, J.; Sturm, D.J.; Demetriou, Y. Accelerometer-Measured Physical Activity and Sedentary Behavior Levels and Patterns in Female Sixth Graders: The CReActivity Project. Int. J. Environ. Res. Public Health 2021, 18, 32. https://doi.org/10.3390/ijerph18010032

AMA Style

Bachner J, Sturm DJ, Demetriou Y. Accelerometer-Measured Physical Activity and Sedentary Behavior Levels and Patterns in Female Sixth Graders: The CReActivity Project. International Journal of Environmental Research and Public Health. 2021; 18(1):32. https://doi.org/10.3390/ijerph18010032

Chicago/Turabian Style

Bachner, Joachim, David J. Sturm, and Yolanda Demetriou. 2021. "Accelerometer-Measured Physical Activity and Sedentary Behavior Levels and Patterns in Female Sixth Graders: The CReActivity Project" International Journal of Environmental Research and Public Health 18, no. 1: 32. https://doi.org/10.3390/ijerph18010032

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