TY - JOUR T1 - Online original articles JF - British Journal of Sports Medicine JO - Br J Sports Med SP - 253 LP - 253 VL - 39 IS - 5 A2 - , Y1 - 2005/05/01 UR - http://bjsm.bmj.com/content/39/5/253.abstract N2 - The following electronic only articles are published in conjunction with this issue of BJSM (see also pages 266 and 297) C I Karageorghis, M M Vencato, N L D Chatzisarantis, et al Objectives: To develop a valid and reliable internet based lifestyle physical activity questionnaire suitable for use among the United Kingdom population.Methods: After a detailed content analysis and item generation using a panel of experts, an internet based measure of lifestyle physical activity behaviour was developed. Data were collected from 1369 subjects in … ER -