Maxwell Cassie, Ruth Kyle, Friesen Carol
Department of Nutrition and Health Science, College of Health, Ball State University, Muncie, IN 47306, USA.
Training Think Tank, 11445 N Fulton Industrial Blvd Alpharetta, GA 30009, USA.
Sports (Basel). 2017 Mar 24;5(2):21. doi: 10.3390/sports5020021.
CrossFit is a large, growing force in the fitness community. Currently, Level 1 and 2 CrossFit certification classes do not include nutrition education. The purpose of this study was to identify sports nutrition knowledge, perceptions, resources, and advice given by Certified CrossFit Trainers.
An online questionnaire that measured these four constructs was placed on a private Facebook community, open only to certified CrossFit trainers, for 10 days.
Complete surveys were obtained from 289 CrossFit trainers. The mean Sport Nutrition Knowledge (SNK) score was 11.1 ± 2.1, equivalent to 65.3% ± 12.4% correct. The trainers perceived nutrition to be extremely important to athletic performance (9.4 ± 0.9 on a 10 point scale). Overall, the trainers graded their SNK higher than that of their CrossFit peers. The internet and CrossFit peers were the most frequently reported sources for nutrition information; Registered Dietitians were the least reported source. The Paleo and Zone diets were the most common dietary regimens recommended by CrossFit trainers. Results indicated a positive correlation between a CrossFit trainer's self-reported hours of nutrition education and their SNK score (r = 0.17; < 0.01).
Nutrition education modules for Level 1 and 2 CrossFit trainers, developed with input from Board Certified Specialists in Sports Dietetics, are recommended.
CrossFit在健身领域是一股庞大且不断发展的力量。目前，CrossFit 1级和2级认证课程不包括营养教育内容。本研究的目的是确定CrossFit认证教练所具备的运动营养知识、认知、资源以及提供的建议。
一份测量这四个方面的在线问卷在一个仅对CrossFit认证教练开放的私人Facebook群组中放置了10天。
共获得289名CrossFit教练的完整调查问卷。运动营养知识（SNK）平均得分为11.1±2.1，相当于正确率为65.3%±12.4%。教练们认为营养对运动表现极其重要（10分制下得分为9.4±0.9）。总体而言，教练们给自己的SNK评分高于他们的CrossFit同行。互联网和CrossFit同行是最常被提及的营养信息来源；注册营养师是最少被提及的来源。原始饮食法和区域饮食法是CrossFit教练最常推荐的饮食方案。结果表明，CrossFit教练自我报告的营养教育时长与他们的SNK得分之间存在正相关（r = 0.17；P<0.01）。
建议在运动饮食学认证专家的参与下，为CrossFit 1级和2级教练开发营养教育模块。
