A systematic review of the clustering and correlates of physical activity and sedentary behavior among boys and girls

Table 2 Classification of instruments used to measure PA and SB

Author (publication year)	Instruments classification
Author (publication year)	Physical Activity	Sedentary Behavior
De Bourdeaudhuij (2013) [34]	Accelerometer (Defined)	Accelerometer (Defined)
Gorely (2007) [15]	Defined	Defined
Huang (2016) [17]	Validated	Validated
Kim (2016) [26]	Undefined-Reproducible	Undefined-Reproducible
Lazarou (2009) [35]	Undefined-Reproducible	Undefined-Reproducible
Marshall (2002) [36]	Defined	Defined
Melkevik (2011) [25]	Defined	Defined
Nelson (2005) [37]	Defined	Undefined
Nelson (2006) [23]	Defined	Undefined
O'Neill (2017) [38]	Undefined-Reproducible	Undefined-Reproducible
Patnode (2011) [24]	Accelerometer (Defined)*	Defined
Ramos (2012) [39]	Defined	Defined
Spengler (2015) [16]	Defined	Defined
Taverno Ross (2016) [40]	Accelerometer (Defined)*	Defined
Te velde (2007) [13]	Defined	Defined
Wang (2006) [41]	Defined	Defined
Wang (2011) [42]	Defined	Defined

^* Used two instruments (accelerometer and questionnaire). (1) Defined (reported the validation process); (2) Undefined (reported question and/or response option and instrument reference); (3) Undefined-Reproducible (reported question and response options but no instrument reference); (4) Objective measurement (e.g., accelerometer)

ISSN: 1471-2458