Table of contents

Original articles

• Objectively measured physical activity trajectories predict adolescent bone strength: Iowa Bone Development Study (16 May, 2014)

  Kathleen F Janz, Elena M Letuchy, Trudy L Burns, Julie M Eichenberger Gilmore, James C Torner, Steven M Levy
• Intervening to reduce workplace sitting time: how and when do changes to sitting time occur? (9 May, 2014)

  Samantha K Stephens, Elisabeth A H Winkler, Stewart G Trost, David W Dunstan, Elizabeth G Eakin, Sebastien F M Chastin, Genevieve N Healy
• Responsiveness of motion sensors to detect change in sedentary and physical activity behaviour (13 May, 2014)

  Ann M Swartz, Aubrianne E Rote, Young Ik Cho, Whitney A Welch, Scott J Strath
• Predicting energy expenditure through hand rim propulsion power output in individuals who use wheelchairs (13 May, 2014)

  Scott A Conger, Stacy N Scott, David R Bassett
• Adding maps (GPS) to accelerometry data to improve study participants’ recall of physical activity: a methodological advance in physical activity research (9 May, 2014)

  Barbara B Brown, Laura Wilson, Calvin P Tribby, Carol M Werner, Jean Wolf, Harvey J Miller, Ken R Smith