To the Editor After successful weight loss with weekly group sessions over the initial 6 months of the IDEA trial, individuals randomized to an enhanced intervention group using a physical activity tracking device regained more weight over the subsequent 18 months compared with participants randomized to a standard intervention not including use of this device.1 The results seem counterintuitive and remain insufficiently explained. We have a few questions that may lead to better understanding of the IDEA trial results.
Plante TB, Martin SS. Wearable Technology and Long-term Weight Loss. JAMA. 2017;317(3):318–319. doi:10.1001/jama.2016.19265
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