Passe D H, Horn M, Murray R
Gatorade Sports Science Institute, Barrington, IL 60010, USA.
Appetite. 2000 Dec;35(3):219-29. doi: 10.1006/appe.2000.0352.
These two studies investigated the impact of beverage acceptability on voluntary fluid intake during exercise and the subsequent impact of exercise on the perception and liking of beverages. In Experiment 1, 49 triathletes and runners first tasted an array of 10 commercially available flavors of a 6% carbohydrate-electrolyte drink (CE) and water (W) to determine the most-acceptable flavor (M) and least-acceptable flavor (L) for each subject. Subjects were subsequently given M, L, or W ad libitum during 180 min of exercise. Drink acceptability was again measured after 90 and 180 min of exercise. Drink intake was measured at 15-min intervals. Intake of M was significantly greater than L and W throughout the first 75 min and significantly greater than W throughout the entire exercise period. In Experiment 2, subjects were given M+W, or L+W, in a two-bottle procedure. Voluntary intake of M and L exceeded W by 318% and 233%, respectively. An unexpected finding was a strong interaction between drink acceptability and exercise state. The acceptability of L increased substantially from sedentary to exercise conditions. These data demonstrated that the flavored, sweetened beverages used in this study, substantially increased voluntary fluid intake over W.
这两项研究调查了饮料可接受性对运动期间自愿液体摄入量的影响，以及运动对饮料感知和喜好的后续影响。在实验1中，49名铁人三项运动员和跑步者首先品尝了一系列10种市售口味的6%碳水化合物 - 电解质饮料（CE）和水（W），以确定每个受试者最喜欢的口味（M）和最不喜欢的口味（L）。随后，在180分钟的运动期间，受试者可随意饮用M、L或W。在运动90分钟和180分钟后，再次测量饮料的可接受性。每隔15分钟测量一次饮料摄入量。在整个前75分钟内，M的摄入量显著高于L和W，在整个运动期间，M的摄入量显著高于W。在实验2中，受试者通过两瓶法饮用M + W或L + W。M和L的自愿摄入量分别比W高出318%和233%。一个意外发现是饮料可接受性与运动状态之间存在强烈的相互作用。从久坐状态到运动状态，L的可接受性大幅提高。这些数据表明，本研究中使用的调味甜味饮料比水显著增加了自愿液体摄入量。
