断裂的联系对碳水化合物需求量的了解并不能预测耐力运动员在比赛前后的碳水化合物摄入量。

Gemma Sampson, James. P. Morton, José. L. Areta
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引用次数: 0

摘要

耐力运动员在比赛中无法达到碳水化合物(CHO)指南的要求,这可能是由于他们的知识有限。然而,这一人群的知识与实践之间的关系尚不清楚。为了研究这个问题,我们评估了完成持续时间≥2.5 小时耐力比赛的 50 名运动员(37 名女性)的膳食摄入量,并将 CHO 摄入量与耐力运动员比赛碳水化合物有效营养知识问卷进行了比较,其中包括与 CHO 负荷、赛前膳食和比赛期间摄入量有关的具体问题。有5人(10%)在实践中符合CHO负荷指南(10-12克-千克-1-天-1),但确定的需求量(范围为0-12克-千克-1-天-1)与实际摄入量之间没有关系(rs = 0.133,p = 0.358),正确确定需求量的有18人(36%),他们的摄入量为6.1±1.9克-千克-1-天-1。有 40 人(80%)在实践中达到了赛前膳食指南(1-4 克-千克-1)规定的碳水化合物摄入量,但确定的要求(范围为 0 至大于 4 克-千克-1)与实际摄入量之间没有关系(rs = 0.101,p = 0.487),其中有 19 人(38%)正确确定了指南要求,摄入量为 1.4 ± 0.6 克-千克-1。有 18 人(36%)在实践中达到了比赛期间 CHO 摄入量指南(60-90 克-小时-1)的要求,但所需 CHO 量(范围为 30 至 >90 克/小时)与实际摄入量之间没有关系(rs = 0.028,p = 0.849),有 32 人(64%)正确识别了指南要求,摄入量为 56 ± 20 克-小时-1。结果显示,对 CHO 建议的了解与实践之间没有关系,这表明理论知识并不能保证实现最佳实践,其他重要因素可能最终决定实践。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A broken link: Knowledge of carbohydrate requirements do not predict carbohydrate intake around competition in endurance athletes

A broken link: Knowledge of carbohydrate requirements do not predict carbohydrate intake around competition in endurance athletes

Endurance athletes fail to meet carbohydrate (CHO) guidelines for competition, which may be due to limited knowledge. However, the relationship between knowledge and practice in this population is unknown. To investigate this, we assessed the dietary intake in 50 athletes (37 females) who completed endurance events ≥2.5 h in duration and compared CHO intake against the carbohydrates for endurance athletes in competition questionnaire validated nutrition knowledge questionnaire, with specific questions related to CHO loading, pre-competition meal and during-competition intake. CHO-loading guidelines (10–12 g · kg−1 · day−1) were met in practice by n = 5 (10%), but there was no relationship between identified requirements (range 0–12 g · kg−1 · day−1) and actual intake (rs = 0.133, p = 0.358), with the n = 18 (36%) who correctly identified requirements, ingesting 6.1 ± 1.9 g · kg−1 · day−1. CHO intake for pre-competition meal guidelines (1–4 g · kg−1) was met in practice by n = 40 (80%), but there was no relationship between identified requirements (range 0 to >4 g · kg−1) and actual intake (rs = 0.101, p = 0.487), with n = 19 (38%) who correctly identified guidelines requirements, ingesting 1.4 ± 0.6 g · kg−1. CHO intake during-competition guidelines (60–90 g · h−1) was met in practice by n = 18 (36%), but there was no relationship between the amounts of CHO required (range 30 to >90 g/h) and actual intake (rs = 0.028, p = 0.849), with n = 32 (64%) who correctly identified guidelines requirements, ingesting 56 ± 20 g · h−1. Results show no relationship between the knowledge of CHO recommendations and practice, suggesting that theoretical knowledge does not guarantee the achievement of best practice and other important factors may ultimately determine practice.

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