More real-world trials are needed to establish if web-based physical activity interventions are effective.
Corneel Vandelanotte PhDMitch J DuncanGregory S KoltCristina M CaperchioneTrevor N SavageAnetta Van ItallieChristopher OldmeadowStephanie J AlleyRhys TagueAnthony J MaederRichard R RosenkranzW Kerry MummeryPublished in: British journal of sports medicine (2018)