Measurement Properties of Smartphone Approaches to Assess Physical Activity in Healthy Young People: Systematic Review

- Parmenter, Belinda; Burley, Claire; Visontay, Rachel; Birrell, Louise; Bryant, Zachary; Chapman, Cath; Lubans, David R.; Sunderland, Matthew; Slade, Tim; Thornton, Louise; Stewart, Courtney; Whife, Jesse; Champion, Katrina; Osman, Bridie; Newton, Nicola; Green, Olivia; Wescott, Annie B.; Gardner, Lauren A.