Response to Armstrong and Bergeron
We are pleased that our recent publication (Hoffman et al. 2018b) has been of interest and that it will receive further attention through our response to the letter from Armstrong and Bergeron (2019). Their letter is largely concentrated on attempting to refute three aspects of our work, which will be the focus of our response.
Their first issue relates to their misrepresentation that we indicated consuming water ad libitum “provide[s] for adequate hydration during prolonged exercise”. We carefully related our conclusions to running for 2 h and avoided referring to “prolonged exercise” because of the potential for misinterpretation. Additionally, we clearly pointed out that “the present data do not allow us to make conclusions about the adequacy of ad libitum drinking to support hydration during longer bouts of exercise where it is possible that greater water deficits could develop” (page 2694). Beyond the issue of clarifying the intent of “prolonged exercise”, Armstrong and Bergeron...
MDH drafted the response. All authors contributed to the revisions of the initial draft, and read and approved the final response.
- Maresh CM, Gabaree-Boulant CL, Armstrong LE, Judelson DA, Hoffman JR, Castellani JW, Kenefick RW, Bergeron MF, Casa DJ (2004) Effect of hydration status on thirst, drinking, and related hormonal responses during low-intensity exercise in the heat. J Appl Physiol (1985) 97(1):39–44CrossRefGoogle Scholar