"We appreciate Ocobock's interest in methodological rigor. We largely agree with her commentary, which suggests that departures from standard protocols might have contributed to the high resting metabolic rate (RMR) measured for Tsimane. Indeed, our paper acknowledges many of the key departures from gold-standard indirect calorimetry methods of RMR assessment and attempts to adjust for several of these (Gurven et al., 2016). Bringing standard clinical methods into remote field settings often involves certain compromises, especially in our case, where RMR measurement was just one component of a large-scale health and aging project (Gurven et al., 2017). RMR data collection was from 2012 to 2014, and where we to measure RMR again for focused follow up, we would consider new available technologies, improve our protocol to the extent possible, and compare against our published estimates."
Gurven, M., Trumble, B., Stieglitz, J., Cummings, D., Kaplan, H., Blackwell, A. D., Yetish, G., & Pontzer, H. (2019). Methodological differences cannot explain associations between health, anthropometrics, and excess resting metabolic rate. American Journal of Physical Anthropology, 169(1), 197–198. https://doi.org/10.1002/ajpa.23811