Trial reportJournal of the International Society of Sports Nutrition2026
Changes of body composition through an athlete-specific dietary guidance professional track and field athletes: a randomized controlled study.
Trial report in Journal of the International Society of Sports Nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
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Abstract
backgroundOptimal body composition (BC) is essential for athletic success, influencing performance outcomes. Athlete-specific nutrition interventions are important for improving BC and enhancing performance, but evidence is limited, especially in track and field athletes. This study aimed to assess the effect of athlete-specific dietary guidance on BC in Sri Lankan track and field athletes.
methodsA 16-week trial was conducted with 30 athletes, 15 in each group: intervention (IG) and control (CG). The IG received athlete-specific dietary guidance through individual consultations at weeks 0, 4, and 8, along with weekly nutrition advice. BC was assessed using anthropometry, bioelectrical impedance analysis (BIA), and dual-energy X-ray absorptiometry (DEXA). Muscle strength, as a component of physical fitness, was assessed via handgrip strength (HGS).
resultsFourteen participants from each group completed the study. The IG demonstrated a significant decrease in fat mass percentage (FM) derived from BIA (Pre: 21.80 ± 7.0% vs. Post: 17.25 ± 5.8%; Change: -4.55 ± 1.2%;
conclusionsAthlete-specific dietary guidance significantly improved BC and physical fitness among track and field athletes.
trial registrationThis trial was registered in the Sri Lanka Clinical Trials Registry (SLCTR/2024/013) under Universal Trial Number (UTN) U1111-1304-8890 on 10 April 2024.
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