<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Christina D Economos</style></author><author><style face="normal" font="default" size="100%">Erin Hennessy</style></author><author><style face="normal" font="default" size="100%">Jennifer M Sacheck</style></author><author><style face="normal" font="default" size="100%">M Kyla Shea</style></author><author><style face="normal" font="default" size="100%">Elena N Naumova</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Development and testing of the BONES physical activity survey for young children</style></title><secondary-title><style face="normal" font="default" size="100%">BMC Musculoskeletal Disorders</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Attitudes</style></keyword><keyword><style  face="normal" font="default" size="100%">Biomechanics</style></keyword><keyword><style  face="normal" font="default" size="100%">Bone Development</style></keyword><keyword><style  face="normal" font="default" size="100%">Bone Diseases</style></keyword><keyword><style  face="normal" font="default" size="100%">Child</style></keyword><keyword><style  face="normal" font="default" size="100%">Exercise Therapy</style></keyword><keyword><style  face="normal" font="default" size="100%">Female</style></keyword><keyword><style  face="normal" font="default" size="100%">Health Knowledge</style></keyword><keyword><style  face="normal" font="default" size="100%">Health Status</style></keyword><keyword><style  face="normal" font="default" size="100%">Health Surveys</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Male</style></keyword><keyword><style  face="normal" font="default" size="100%">Physical Fitness</style></keyword><keyword><style  face="normal" font="default" size="100%">Practice</style></keyword><keyword><style  face="normal" font="default" size="100%">Questionnaires</style></keyword><keyword><style  face="normal" font="default" size="100%">{Weight-Bearing}</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/20807435</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">11</style></volume><pages><style face="normal" font="default" size="100%">195</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">BACKGROUND Weight-bearing and high intensity physical activities are particularly beneficial for stimulating bone growth in children given that bone responds favorably to mechanical load. While it is important to assess the contribution and impact of weight-bearing physical activity on health outcomes, measurement tools that quantify and provide information on these activities separately from overall physical activity are limited. This study describes the development and evaluation of a pictorial physical activity survey (PAS) that measures children's participation and knowledge of high-intensity, weight-bearing (&quot;bone smart&quot;) physical activity. 
METHODS To test reliability, two identical sets of the PAS were administered on the same day to 41 children (mean age 7.1 ± 0.8 years; 63% female) and compared. To test validity, accelerometry data from 40 children (mean age 7.7 ± 0.8 years; 50% female) were compared to data provided by the PAS. Agreements between categorical and ordinal items were assessed with Kappa statistics; agreements between continuous indices were assessed with Spearman's correlation tests. 
RESULTS The subjects produced reliable results in all 10 physical activity participation items (κ range: 0.36-0.73, all p &lt; 0.05), but less reliable in answering if the physical activities were &quot;bone smart&quot; (κ range: -0.04-0.66). Physical activity indices, including metabolic equivalent time and weight-bearing factors, were significant in test-retest analyses (Spearman's r range: 0.57-0.74, all p &lt; 0.001). Minutes of very vigorous activity from the accelerometer were associated with the self-reported weight-bearing activity, moderate-high, and high activity scores from the PAS (Spearman's r range: 0.47-0.48, all p &lt; 0.01). However, accelerometer counts, counts per minute, and minutes of moderate-vigorous and vigorous activity were not associated with the PAS scores. 
CONCLUSIONS Together, the results of these studies suggest that the PAS has acceptable test-retest reliability, but limited validity for early elementary school children. This survey demonstrates a first step towards developing a questionnaire that measures high intensity, weight-bearing activity in schoolchildren.</style></abstract><notes><style face="normal" font="default" size="100%">{PMID:} 20807435</style></notes></record></records></xml>