Izvorni znanstveni članak
https://doi.org/10.69589/hsv.41.1.6
Omega3rich fish diet enhances physical activity, cardiac autonomic regulation, and lipid health in athletes: A randomized controlled trial
Blessing Anam
; Department of Human Kinetics & Sports Science Education, Faculty of Science Education, University of Calabar, Cross River State, Nigeria
Honor Ifon
; Department of Fisheries & Aquaculture, Faculty of Agriculture, University of Calabar, Cross River State, Nigeria
Sažetak
Optimal nutrition is central to athletic performance and cardiovascular health. This randomized controlled trial examined the effects of a 12week omega3rich fish diet on physical activity and cardiac function in Nigerian athletes. Eighty athletes were randomized (40 intervention, 40 control), with final analyses including 73 participants (37 intervention, 36 control). Physical activity was measured using wristworn accelerometers, and cardiac function was assessed by electrocardiography (including heartrate variability, HRV) and echocardiography. Compared with controls, the intervention group showed greater increases in daily steps (+1,370 ± 420 vs. +110 ± 380 steps/day; p < 0.001), moderatetovigorous activity (+19 ± 7 vs. +2 ± 6 min/ day; p < 0.01), and reductions in sedentary time (–50 ± 18 vs. –6 ± 20 min/day; p < 0.01). HRV improved significantly, with RMSSD (+7.1 ± 3.2 ms vs. +0.5 ± 2.8 ms; p < 0.01), SDNN (+8.3 ± 4.1 ms vs. +0.9 ± 3.2 ms; p < 0.01), and LF/ HF ratio (–0.26 ± 0.12 vs. –0.05 ± 0.11; p < 0.05). Left ventricular ejection fraction increased modestly (+1.8 ± 0.9% vs. stable; p < 0.05). Lipid profiles improved, with lower total cholesterol, LDL, and triglycerides, and higher HDL, while perceived recovery scores were significantly higher. An omega3rich fish diet significantly enhanced activity, autonomic function, and lipid health, supporting its use as a practical strategy to optimize athletic performance.
Ključne riječi
fatty-fish diet, athletes, moderate-tovigorous physical activity-MVPA, RMSSD, LVEF
Hrčak ID:
348760
URI
Datum izdavanja:
30.6.2026.
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