| Co supplementation and isolated the L-Citrulline and BeetRoot juice on anaerobic performance in trained male taekwondo athletes: Randomized-Placebo Control Cross-over Study |
| Paper ID : 1192-SPORTCONGRESS (R1) |
| Authors |
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Mohammad Hossein Samanipour *1, Farokh Karami1, Kourosh Rajoli2, Pooya Shokati3, Juan Mielgo Ayuso4 1Department of Exercise Physiology, Karaj Branch, Islamic Azad University, Karaj, Iran 2Vice President of the Alborz Province Taekwondo Board, Karaj, Alborz 3Department of Exercise Physiology, Central Tehran Branch, Islamic Azad University, Tehran, Iran 4Department of Health Sciences, Faculty of Health Sciences, University of Burgos, Burgos, Spain |
| Abstract |
| Introduction: This study aimed to investigate the acute effects of co-supplementation with beetroot juice (BJ) and L-citrulline on anaerobic performance in elite male taekwondo athletes. Methods: Sixty trained taekwondo athletes (mean ± SD: age 24.4 ± 2.1 years; height 1.80 ± 0.05 m; body mass 64.2 ± 5.1 kg; BMI 20.0 ± 0.2 kg·m⁻²) participated. After baseline assessments, all participants performed five rounds of the Frequency Speed of Kick Test (FSKTmult). They were randomly assigned to receive one of four conditions: beetroot juice concentrate (70 mL; 400 mg NO₃⁻), L-citrulline (100 mg·kg⁻¹), the combination of both, or a placebo. Rating of perceived exertion (RPE) was recorded after each round. Results: Both L-citrulline + BJ and BJ alone maintained a higher kick frequency than placebo and L-citrulline alone, particularly during rounds 3 and 5 (p < 0.05). Placebo showed higher RPE compared with all supplement conditions (p < 0.05). For total number of kicks, L-citrulline + BJ and BJ outperformed placebo (p < 0.001 and p = 0.006, respectively), and both exceeded L-citrulline alone (p < 0.001). Kick Fatigue Index (KFI) was significantly lower in the L-citrulline + BJ condition compared with placebo (p = 0.015). Conclusion: Acute co-supplementation with L-citrulline and beetroot juice enhanced repeated-sprint kick performance and reduced perceived exertion in taekwondo athletes, with effects superior to either supplement alone. |
| Keywords |
| Taekwondo, FSKT, beetroot juice, citrulline, supplementation |
| Status: Abstract Accepted (Poster Presentation) |
