BackgroundCoaches are considered as an important source of nutrition information by their athletes. However, their knowledge in this area is often insufficient for proper guidance and may lead to the dissemination of misinformation regarding sports nutrition. The aim of this study was to assess coaches’ intentions as well as psychosocial determinants underlying their intentions to provide sports nutrition recommendations to their high school athletes.MethodsCoaches (n = 47) completed a Web-based questionnaire based on the theory of planned behaviour, to assess their intentions to provide three different sports nutrition recommendations and their determinants. Multiple regression analyses were used to identify the variables that were most strongly related to the intentions.ResultsForty-six, 44.7 and 91.9% of coaches had the intention to recommend a higher consumption of foods rich in carbohydrates, foods rich in proteins and an increase in hydration to their athletes, respectively. Subjective norm was the only significant determinant of coaches’ intention to recommend a higher consumption of foods rich in carbohydrates (R2 = 53.7%, β = 0.73 ± 0.12, P < 0.0001). Subjective norm and perceived behavioural control were significantly associated with coaches’ intentions to recommend a higher consumption of foods rich in proteins (R2 = 25.9%, β = 0.50 ± 0.16, P = 0.002 and R2 = 17.2%, β = 0.39 ± 0.17, P = 0.01, respectively) and an increase in hydration (R2 = 26.8%, β = 0.38 ± 0.13, P = 0.001 and R2 = 46.3%, β = 0.58 ± 0.11, P < 0.0001, respectively).ConclusionsThe results of this study suggest that subjective norm and perceived behavioural control represent important determinants of coaches’ intentions to provide recommendations on sports nutrition. These findings should be considered in future interventions aimed at facilitating proper general sports nutrition recommendations provided by coaches to their athletes.

中文翻译：

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教练员向运动员提供不同运动营养建议的意愿的决定因素

背景教练被运动员视为重要的营养信息来源。然而，他们在这方面的知识往往不足以提供适当的指导，并可能导致有关运动营养的错误信息的传播。本研究的目的是评估教练的意图以及他们意图为高中运动员提供运动营养建议的心理社会决定因素。 方法教练（n = 47）完成了基于计划行为理论的基于网络的问卷调查，评估他们提供三种不同运动营养建议的意图及其决定因素。多元回归分析用于识别与意图最密切相关的变量。结果46、44.7和91。9% 的教练打算分别向运动员推荐更多富含碳水化合物的食物、富含蛋白质的食物和增加水分的食物。主观规范是教练建议更多食用富含碳水化合物的食物的意图的唯一重要决定因素（R2 = 53.7%，β = 0.73 ± 0.12，P < 0.0001）。主观规范和感知行为控制与教练建议更多食用富含蛋白质的食物的意图显着相关（R2 = 25.9%，β = 0.50 ± 0.16，P = 0.002 和 R2 = 17.2%，β = 0.39 ± 0.17， P = 0.01，分别）和水合作用增加（R2 = 26.8%，β = 0.38 ± 0.13，P = 0.001 和 R2 = 46.3%，β = 0.58 ± 0.11，P < 0.0001，分别）。结论这项研究的结果表明，主观规范和感知行为控制代表了教练提供运动营养建议意图的重要决定因素。这些发现应在未来旨在促进教练向运动员提供适当的一般运动营养建议的干预措施中加以考虑。