Aminian, SHinckson, EA2014-12-082014-12-0820122012International Journal of Behavioral Nutrition and Physical Activity 2012, 9:119. DOI:10.1186/1479-5868-9-1191479-5868https://hdl.handle.net/10292/8212Decreasing sedentary activities that involve prolonged sitting may be an important strategy to reduce obesity and other physical and psychosocial health problems in children. The first step to understanding the effect of sedentary activities on children's health is to objectively assess these activities with a valid measurement tool.This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Activities of daily livingBody Mass IndexChildExercise testFemaleHumansMaleMonitoringAmbulatoryNew ZealandObesityReproducibility of resultsSchoolsSedentary lifestyleWalkingJournal ArticleOpenAccess10.1186/1479-5868-9-119