Academic Journal
The impact of beetroot juice supplementation on muscular endurance, maximal strength and countermovement jump performance
| Title: | The impact of beetroot juice supplementation on muscular endurance, maximal strength and countermovement jump performance |
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| Authors: | Luc J. C. van Loon, Lex B. Verdijk, Daan Hoogervorst, Harmen B Peelen, Kristin L. Jonvik, Jan-Willem van Dijk, Mark de Niet |
| Contributors: | Physiotherapy, Human Physiology and Anatomy, Human Physiology and Sports Physiotherapy Research Group |
| Source: | European Journal of Sport Science. 21:871-878 |
| Publisher Information: | Wiley, 2020. |
| Publication Year: | 2020 |
| Subject Terms: | Adult, Male, Movement, POWER, BLOOD-PRESSURE, Nitrites/blood, MUSCLE FORCE, INCREASE, dietary supplements, Upper Extremity, 03 medical and health sciences, 0302 clinical medicine, Double-Blind Method, Isometric Contraction, Humans, Muscle Strength, Isometric Contraction/physiology, PHYSIOLOGY, Muscle, Skeletal, Exercise, Nitrites, musculoskeletal, NITRIC-OXIDE, Cross-Over Studies, Nitrates, exercise, INTENSITY, Physical Endurance/physiology, DIETARY NITRATE SUPPLEMENTATION, Physical Functional Performance, Nitrates/administration & dosage, fitness, Muscle, Skeletal/physiology, Fruit and Vegetable Juices, nutrition, Upper Extremity/physiology, RELIABILITY, Dietary Supplements, Movement/physiology, Physical Endurance, Muscle Strength/physiology, Beta vulgaris, RESPONSES |
| Description: | Purpose: Dietary nitrate has been shown to enhance muscle contractile function and has, therefore, been linked to increased muscle power and sprint exercise performance. However, the impact of dietary nitrate supplementation on maximal strength, performance and muscular endurance remains to be established. Methods: Fifteen recreationally active males (25 ± 4 y, BMI 24 ± 3 kg/m2) participated in a randomized double‐blinded cross‐over study comprising two 6‐d supplementation periods; 140 mL/d nitrate‐rich (BR; 985 mg/d) and nitrate‐depleted (PLA; 0.37 mg/d) beetroot juice. Three hours following the last supplement, we assessed countermovement jump (CMJ) performance, maximal strength and power of the upper leg by voluntary isometric (30° and 60° angle) and isokinetic contractions (60, 120, 180 and 300°·s−1), and muscular endurance (total workload) by 30 reciprocal isokinetic voluntary contractions at 180°·s−1. Results: Despite differences in plasma nitrate (BR: 879 ± 239 vs. PLA: 33 ± 13 μmol/L, P < 0.001) and nitrite (BR: 463 ± 217 vs. PLA: 176 ± 50 nmol/L, P < 0.001) concentrations prior to exercise testing, CMJ height (BR: 39.3 ± 6.3 vs. PLA: 39.6 ± 6.3 cm; P = 0.39) and muscular endurance (BR: 3.93 ± 0.69 vs. PLA: 3.90 ± 0.66 kJ; P = 0.74) were not different between treatments. In line, isometric strength (P > 0.50 for both angles) and isokinetic knee extension power (P > 0.33 for all velocities) did not differ between treatments. Isokinetic knee flexion power was significantly higher following BR compared with PLA ingestion at 60°·s−1 (P = 0.001), but not at 120°·s−1 (P = 0.24), 180°·s−1 (P = 0.066), and 300°·s−1 (P = 0.36). Conclusion: Nitrate supplementation does not improve maximal strength, countermovement jump performance and muscular endurance in healthy, active males. |
| Document Type: | Article |
| File Description: | application/pdf |
| Language: | English |
| ISSN: | 1536-7290 1746-1391 |
| DOI: | 10.1080/17461391.2020.1788649 |
| Access URL: | https://pubmed.ncbi.nlm.nih.gov/32594854 https://www.narcis.nl/publication/RecordID/oai%3Acris.maastrichtuniversity.nl%3Apublications%2Fb88e0025-d31a-48e2-b713-d5f0839f66d6 https://pubmed.ncbi.nlm.nih.gov/32594854/ https://acuresearchbank.acu.edu.au/item/8w902/the-impact-of-beetroot-juice-supplementation-on-muscular-endurance-maximal-strength-and-countermovement-jump-performance https://cris.maastrichtuniversity.nl/en/publications/the-impact-of-beetroot-juice-supplementation-on-muscular-enduranc https://www.ncbi.nlm.nih.gov/pubmed/32594854 https://europepmc.org/article/MED/32594854 https://acuresearchbank.acu.edu.au/item/8w902/the-impact-of-beetroot-juice-supplementation-on-muscular-endurance-maximal-strength-and-countermovement-jump-performance https://biblio.vub.ac.be/vubir/the-impact-of-beetroot-juice-supplementation-on-muscular-endurance-maximal-strength-and-countermovement-jump-performance(fd14e403-d0e9-4780-be23-e2c27f8a4ddf).html |
| Rights: | Wiley Online Library User Agreement CC BY NC ND |
| Accession Number: | edsair.doi.dedup.....d54e288d739c7c93a0c9e5f75351b970 |
| Database: | OpenAIRE |
| ISSN: | 15367290 17461391 |
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| DOI: | 10.1080/17461391.2020.1788649 |