Ranil Jayawardena, Kalani Weerasinghe, Indu Nanayakkara, Terrence Madhujith, Andrew P Hills, Nishan Sudheera Kalupahana
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The intervention group (IG) received personalized sports nutrition consultations at 0, 4<sup>th</sup>, and 8<sup>th</sup> weeks, along with online educational materials via WhatsApp from weeks 10 to 16, while the control group (CG) did not receive any intervention. A per-protocol analysis was followed, and t-tests were used to compare the means.</p><p><strong>Results: </strong>Of the 30 participants enrolled, 13 from IG and 14 from CG completed the study. Following the 16-week intervention, the IG demonstrated significant improvements in total nutrition knowledge (TNK) relative to the CG (IG: 34.41 ± 4.15 vs. CG: 20.96 ± 4.38; <i>p</i> = 0.01), with significant increases in general nutrition knowledge (GNK) (IG:24.54 ± 3.66 vs. CG:15.64 ± 2.33; <i>p</i> = 0.004) and SNK (9.87 ± 3.87 vs. 5.32 ± 4.07; <i>p</i> = 0.006). Changes in TNK were also significantly greater in the IG compared to the CG; (IG:9.45 ± 0.10 vs. CG: -2.63 ± 0.37; <i>p</i> < 0.0001), GNK (IG:4.47 ± 0.08 vs. CG: -1.28 ± 0.09; <i>p</i> < 0.0001), and SNK (IG:4.99 ± 0.72 vs. CG: -1.25 ± 0.74; <i>p</i> < 0.0001).</p><p><strong>Conclusions: </strong>The 16-week dual-method nutrition education intervention was effective in improving TNK, GNK, and SNK among track and field athletes in Sri Lanka.</p><p><strong>Trial registration: </strong>This trial is registered at the Sri Lanka Clinical Trials Registry (SLCTR/2024/013), Universal Trial Number (UTN): U1111-1304-8890 on 10 April 2024.</p>","PeriodicalId":17400,"journal":{"name":"Journal of the International Society of Sports Nutrition","volume":"22 1","pages":"2519517"},"PeriodicalIF":4.5000,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12175182/pdf/","citationCount":"0","resultStr":"{\"title\":\"Improvement of sports nutrition knowledge by a dual method education program in track and field athletes: a randomized controlled trial.\",\"authors\":\"Ranil Jayawardena, Kalani Weerasinghe, Indu Nanayakkara, Terrence Madhujith, Andrew P Hills, Nishan Sudheera Kalupahana\",\"doi\":\"10.1080/15502783.2025.2519517\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Athletes with strong sports nutrition knowledge are believed to have sound nutritional practices and better performance. 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Following the 16-week intervention, the IG demonstrated significant improvements in total nutrition knowledge (TNK) relative to the CG (IG: 34.41 ± 4.15 vs. CG: 20.96 ± 4.38; <i>p</i> = 0.01), with significant increases in general nutrition knowledge (GNK) (IG:24.54 ± 3.66 vs. CG:15.64 ± 2.33; <i>p</i> = 0.004) and SNK (9.87 ± 3.87 vs. 5.32 ± 4.07; <i>p</i> = 0.006). 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引用次数: 0
摘要
背景：具有较强运动营养知识的运动员被认为具有良好的营养实践和更好的表现。本研究旨在评估双方法个性化营养教育计划在提高斯里兰卡田径运动员运动营养知识（SNK）方面的有效性。方法：采用平行组、随机对照试验方法，招募18岁及以上的国家级田径运动员。干预组（IG）在第0周、第4周和第8周接受个性化的运动营养咨询，并在第10周至第16周通过WhatsApp获得在线教育材料，而对照组（CG）没有接受任何干预。采用协议分析，采用t检验比较均值。结果：在入选的30名参与者中，IG组13名，CG组14名完成了研究。经过16周的干预，IG组在总营养知识（TNK）方面比CG组有显著提高(IG组：34.41±4.15 vs. CG组：20.96±4.38；p = 0.01)，一般营养知识（GNK）显著增加(IG:24.54±3.66 vs. CG:15.64±2.33；p = 0.004)和SNK(9.87±3.87∶5.32±4.07；p = 0.006)。IG组TNK的变化也明显大于CG组；(IG:9.45±0.10 vs. CG: -2.63±0.37；结论：16周双法营养教育干预能有效提高斯里兰卡田径运动员的TNK、GNK和SNK。试验注册：该试验于2024年4月10日在斯里兰卡临床试验注册中心（SLCTR/2024/013）注册，通用试验号（UTN）： U1111-1304-8890。
Improvement of sports nutrition knowledge by a dual method education program in track and field athletes: a randomized controlled trial.
Background: Athletes with strong sports nutrition knowledge are believed to have sound nutritional practices and better performance. This study aimed to evaluate the effectiveness of a dual-method personalized nutrition education program in improving sports nutrition knowledge (SNK) among Sri Lankan track and field athletes.
Methods: This parallel-group, randomized controlled trial recruited national-level track and field athletes aged 18 and above. The intervention group (IG) received personalized sports nutrition consultations at 0, 4th, and 8th weeks, along with online educational materials via WhatsApp from weeks 10 to 16, while the control group (CG) did not receive any intervention. A per-protocol analysis was followed, and t-tests were used to compare the means.
Results: Of the 30 participants enrolled, 13 from IG and 14 from CG completed the study. Following the 16-week intervention, the IG demonstrated significant improvements in total nutrition knowledge (TNK) relative to the CG (IG: 34.41 ± 4.15 vs. CG: 20.96 ± 4.38; p = 0.01), with significant increases in general nutrition knowledge (GNK) (IG:24.54 ± 3.66 vs. CG:15.64 ± 2.33; p = 0.004) and SNK (9.87 ± 3.87 vs. 5.32 ± 4.07; p = 0.006). Changes in TNK were also significantly greater in the IG compared to the CG; (IG:9.45 ± 0.10 vs. CG: -2.63 ± 0.37; p < 0.0001), GNK (IG:4.47 ± 0.08 vs. CG: -1.28 ± 0.09; p < 0.0001), and SNK (IG:4.99 ± 0.72 vs. CG: -1.25 ± 0.74; p < 0.0001).
Conclusions: The 16-week dual-method nutrition education intervention was effective in improving TNK, GNK, and SNK among track and field athletes in Sri Lanka.
Trial registration: This trial is registered at the Sri Lanka Clinical Trials Registry (SLCTR/2024/013), Universal Trial Number (UTN): U1111-1304-8890 on 10 April 2024.
期刊介绍：
Journal of the International Society of Sports Nutrition (JISSN) focuses on the acute and chronic effects of sports nutrition and supplementation strategies on body composition, physical performance and metabolism. JISSN is aimed at researchers and sport enthusiasts focused on delivering knowledge on exercise and nutrition on health, disease, rehabilitation, training, and performance. The journal provides a platform on which readers can determine nutritional strategies that may enhance exercise and/or training adaptations leading to improved health and performance.
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