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Shauna Solomon-Krakus, Catherine M. Sabiston, Jennifer Brunet, Andree L. Castonguay and Mélanie Henderson

levels of MVPA during adolescence is important. Objective measurements of body size ( 2 , 21 , 23 , 31 ) and subjective perceptions of body size ( 15 , 28 , 32 , 33 ) have been consistent targets in studies exploring barriers to physical activity. For example, studies have found that objectively

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Scott E. Crouter, Paul R. Hibbing and Samuel R. LaMunion

is to improve measurement of the individual components of SB, with the goal of eventually developing streamlined methods for combining posture and EE measurement to adhere with the consensus definition of SB. To that end, this paper seeks to understand objective measurement of posture and EE as it

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Hatice Mujde Ayık and Michael J. Griffin

). The subjective ratings and the objective measurements of COP velocity suggest postural instability when walking is sensitive to the peak magnitude of 1-Hz mediolateral oscillations but not the peak magnitude of 2-Hz mediolateral oscillations. Arranging the placement and timing of stepping reactions

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Karen C. Smith, Griffin L. Michl, Jeffrey N. Katz and Elena Losina

conditions instead of objective measurements. As such, they may have limited their ability to find more subtle associations between weather and physical activity in study participants. In a study that did use objective weather measurements in the context of a physical activity intervention, Chan et al 16

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Mohammad Siahpush, Trish D. Levan, Minh N. Nguyen, Brandon L. Grimm, Athena K. Ramos, Tzeyu L. Michaud and Patrik L. Johansson

least were able to account to some extent for the reverse causality by controlling for the presence of a chronic condition, which included a variety of diseases and limiting conditions. Third, physical activity and smoking were self-reported and not based on objective measurement. Self

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Ana Torres-Costoso, Dimitris Vlachopoulos, Esther Ubago-Guisado, Asunción Ferri-Morales, Iván Cavero-Redondo, Vicente Martínez-Vizcaino and Luis Gracia-Marco

wrist accelerometers (GENEActiv; GENEA, Kimbolton, UK). Accelerometer is a sensor capable of measuring PA, providing objective measurements. The validity and reliability of the accelerometer have been established previously in children and adolescents ( 20 ). Participants were instructed to place the

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Lisa M. Barnett, David R. Lubans, Anna Timperio, Jo Salmon and Nicola D. Ridgers

competencies from an early age ( Barnett, Stodden, et al., 2016 ). The strengths of this study include the objective measurement of fitness, skill competence and physical activity, and the alignment between the actual and perceived movement skills assessed. However, there are several limitations that warrant

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Claudia O. Alberico, J. Aaron Hipp and Rodrigo S. Reis

between access and use of FZ and populational physical activity levels. However, one of the strong points of this study was the use of 2 categories for neighborhood income in the statistical model, as well as objective measurement through SOPARC. Conclusions We verified patterns of use and physical

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Catrine Tudor-Locke and Elroy J. Aguiar

application. Such “big data” approaches are exciting and potentially very powerful in terms of advancing scientific understanding of the correlates and impacts of physical activity but require careful consideration of information security issues including privacy and ownership. At the heart of objective

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Rienk M.A. van der Slikke, Daan J.J. Bregman, Monique A.M. Berger, Annemarie M.H. de Witte and Dirk-Jan (H.) E.J. Veeger

validity of the systems often questionable. In wheelchair basketball, the classification method is also time consuming and complicated. The use of objective measurement methods and sport-specific field tests can aid classifiers in their decision making. Results of the present study show the significance of