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This study investigated the influence of drink carbonation and carbohydrate content on ad libitum drinking behavior and body fluid and electrolyte responses during prolonged exercise in the heat. Eight competitive male runners completed three 2-hr treadmill runs at 60% ${\text{VO}}_{\mathrm{2max}}$ in an environmental chamber maintained at $30{}^{°}\text{C}$ and 40% RH. Three test drinks were used: 8% carbohydrate, low carbonation (8%-C); 8% carbohydrate, noncarbonated (8%-NC), and water (0%-NC). Blood samples were taken preexercise (0), at 60 and 120 min of exercise, and at 60 min of recovery (+60 min). The data suggest that while reports of heartburn tend to be higher on 8% carbohydrate drinks than on 0%-NC, this does not appear to be a function of drink carbonation. Similarly, the increased frequency of heartbum did not significantly reduce fluid consumption either during exercise or during a 60-min recovery period. Importantly, no differences were observed between fluid and electrolyte, or thermoregulatory responses to the three sport drinks. Thus, consumption of low-carbonation beverages does not appear to significantly influence drinking behavior or the related physiological responses during prolonged exercise in the heat.

As the discipline of kinesiology ponders what should compose a kinesiology curriculum, it is worth considering the broad context. What is our responsibility to imbue students with values, viewpoint, and a vocabulary that facilitates their success in a context greater than our discipline? How do we decide what those things are (e.g., professional integrity, analytical thinking, cultural understanding, social responsibility, problem solving, leadership and engaged citizenship, effective communication, working collaboratively, preparation for lifelong learning)? How do we create a curriculum that provides sufficient understanding of disciplinary knowledge and critically important foundational skills? The purpose of this paper is to provide a jumping-off point for deeper discussion of what our students need most and how we can deliver it.