Influence of Beetroot Juice Ingestion on Neuromuscular Performance on Semi-Professional Female Rugby Players: A Randomized, Double-Blind, Placebo-Controlled Study

López-Samanés, Álvaro; Ramos-Álvarez, Juan José; Miguel‐Tobal, Francisco; Gaos, Sofía; Jiménez, Pablo Jodrá; Arranz-Muñoz, Raquel; Domínguez, Raúl; Montoya, Juan José

doi:10.3390/foods11223614

Cited by 7 publications

(5 citation statements)

References 66 publications

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“…The present study has been also unable to detect any effect of BRJ supplementation on jump height during CMJ after the Prone Yo-Yo IR1 test. This result is also in line with some, but not all (Clifford et al, 2016;López-Samanes et al, 2022b), studies that reported no effect of BRJ on the decrement in CMJ The main of time (P < 0.05).…”

Section: Discussionsupporting

confidence: 92%

“…Therefore, our findings provide a significant contribution regarding to the ergogenic potential of NO 3 ‐ supplementation over rugby‐specific exercise in trained rugby male players and in line with previous studies in different team‐sports athletes (i.e. basketball or hockey) that reported no ergogenic effect following acute BRJ supplementation (López‐Samanes et al, 2020; 2022a; 2022b).…”

Section: Discussionsupporting

confidence: 90%

“…The present study has been also unable to detect any effect of BRJ supplementation on jump height during CMJ after the Prone Yo‐Yo IR1 test. This result is also in line with some, but not all (Clifford et al, 2016; López‐Samanes et al, 2022b), studies that reported no effect of BRJ on the decrement in CMJ following fatiguing exercise (Clifford et al, 2017; Cuenca et al, 2018). It remains to be elucidated, but there could be several possible explanations for the absence of an effect of BRJ on performance in the present study.…”

Section: Discussionsupporting

confidence: 87%

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Acute beetroot juice supplementation did not enhance intermittent running performance in trained rugby players

Esen

Karayiğit

Peart

2023

European Journal of Sport Science

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Purpose: Since the effect of dietary nitrate (NO 3 -) supplementation on rugby performance is unclear, the aim of the present study was to determine the effect of acute NO 3 supplementation, on the modified Yo-Yo intermittent recovery level 1 (IR1) performance test in trained male rugby players. Methods: In a randomised, counterbalanced, double-blind, placebo-controlled crossover design, 12 trained rugby union players performed two experimental trials three hours after supplementation of either 140 mL NO 3 --rich (BRJ; ∼12.8 mmol NO 3 -) or NO 3 --depleted (PLA) BRJ. After blood sampling, players performed the modified Yo-Yo IR1 test. Countermovement jumps (CMJ) were also measured before (pre-CMJ) and after (post-CMJ) the prone Yo-Yo IR1 test. Results: Plasma NO 3 -(BRJ: 570 ± 146 µM vs. PLA: 72 ± 23 µM) and nitrite (NO 2 -) concentrations (BRJ: 320 ± 123 nM vs. PLA: 103 ± 57 nM) were increased after BRJ compared to PLA supplementation (both P < 0.001). Performance in the modified Yo-Yo IR1 test did not differ between BRJ (542 ± 209 m) and PLA (498 ± 185 m, P = 0.3). The jump height in pre-CMJ and in post-CMJ were similar between trials (both P > 0.05). Conclusions: Acute BRJ supplementation increased plasma NO 3 and NO 2 concentrations but had no benefit on an intermittent running test that reflects the demands of rugby performance, and CMJ performances. The findings do not support acute high-dose NO 3 supplementation as an ergogenic aid to enhance physical performance in trained male rugby players.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 87%

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Acute beetroot juice supplementation did not enhance intermittent running performance in trained rugby players

Esen

Karayiğit

Peart

2023

European Journal of Sport Science

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“…Significant differences were reported for salivary NO3-(593.4 vs. 8990.5 μM; p ≤ 0.001; ES = 4.15 [3.65;4.63]) (Figure 3A) and NO2-(219.9 vs. 5406.9 μM; p = 0.001; ES = 1.65 [1.31; 1.97]) (Figure 3B) concentrations between the placebo and BJ ingestion. Only 30% of the participants (3/10 participants) correctly identified the supplement that they had received (BJ or placebo), and there were limited side effects reported apart from few cases of increased fatigue or increased urine production (p = 0.330-1.000) (López Samanes at al., 2022). During the hours after completion of the neuromuscular test battery, rock climbers showed a similar prevalence of side effects in the two experimental protocols (BJ vs. placebo).…”

Section: Salivary No3-/no2-concentrations Side Effects Questionnaire ...mentioning

confidence: 99%

Dietary Nitrate Ingestion Does Not Improve Neuromuscular Performance in Male Sport Climbers

Berlanga¹,

López-Samanés²,

Martín-López³

et al. 2023

Journal of Human Kinetics

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Beetroot juice (BJ) is commonly used as an ergogenic aid in endurance and team sports, however, the effect of this supplement on climbing performance is barely studied. The purpose of the current study was to investigate the effect of acute BJ ingestion on neuromuscular and biochemical variables in amateur male sport climbers. Ten physically active sport climbers (28.8 ± 3.7 years) underwent a battery of neuromuscular tests consisting of the half crimp test, the pull-up to failure test, the isometric handgrip strength test, the countermovement jump (CMJ) and the squat jump (SJ). Participants performed the neuromuscular test battery twice in a cross-over design separated by 10 days, 150 min after having consumed either 70-mL of BJ (6.4 mmol NO3-) or a 70-mL placebo (0.0034 mmol NO3-). In addition, nitrate (NO3-) and nitrite (NO2-) saliva concentrations were analysed, and a side effect questionnaire related to ingestion was administrated. No differences were reported in particular neuromuscular variables measured such as the CMJ (p = 0.960; ES = 0.03), the SJ (p = 0.581; ES = −0.25), isometric handgrip strength (dominant/non dominant) (p = 0.459–0.447; ES = 0.34–0.35), the pull-up failure test (p = 0.272; ES = 0.51) or the maximal isometric half crimp test (p = 0.521–0.824; ES = 0.10–0.28). Salivary NO3- and NO2- increased significantly post BJ supplementation compared to the placebo (p < 0.001), while no side effects associated to ingestion were reported (p = 0.330–1.000) between conditions (BJ/placebo ingestion). Acute dietary nitrate supplementation (70-mL) did not produce any statistically significant improvement in neuromuscular performance or side effects in amateur sport climbers.

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“…아이스하키 선수를 대상으로 통증 및 기능부전을 확인하여 체력 요인과의 관계를 검사 한 선행연구를 살펴보면, 엉덩 관절에 통증이 있는 선수는 낮은 엉덩 모음 근력을 보여주었다 (Oliveras et al, 2020). 또한, 엉덩 관절에 서 주관적 기능부전 점수와 모음과 벌림 근력 및 모음-벌림 근력 비 율과의 관계를 검사한 선행연구는 두 요소 간 매우 낮은 상관관계가 존재한다고 보고하여 (Wörner et al, 2019) & Olmsted-Kramer, 2007;Lawson et al, 2021;López-Samanes et al, 2022;Macht et al, 2016;Thompson et al, 2023) (Thompson et al, 2023).…”

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On-ice and Field Performance Characteristics of Ice-hockey Players: Focusing on the Relation with Patient-reported Outcome

Jeon¹,

Oh²,

Lee³

et al. 2023

Korean J Sport Sci

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PURPOSE The purpose of this study was to investigate the characteristics of field and on-ice performances of ice-hockey players and the relationship of performance with subjective joint pain and dysfunction.METHODS A total of 25 male college icehockey players were evaluated for 19 items of performance. Pain and dysfunctions in the lower extremities and lower back were confirmed through the Foot and Ankle Outcome Score, Knee Injury and Osteoarthritis Outcome Score, Hip Dysfunction and Osteoarthritis Outcome Score, and Osweatry Disability Index questionnaire. Players with similar performance characteristics were classified through a cluster analysis, and differences in performance and patient-reported outcomes between clusters were analyzed with a one-way analysis of variance.RESULTS The ice-hockey players were classified into “lower muscular strength and performance (cluster 1),” “lower cardiorespiratory endurance (cluster 2),” and “high muscular strength and performance (cluster 3).” Players in cluster 1 had more frequent ankle and knee joint dysfunctions and pain compared to those in cluster 3. Several performance test items affected the subjective joint score, and the related performance items were more in the proximal joint than in the distal joint.CONCLUSIONS Ice hockey players should perform training to supplement their individual lack of on-ice and field performance. Since performance may be limited because of joint dysfunction and pain, a joint-specific intervention strategy should be applied to improve physical and athletic performances.

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Influence of Beetroot Juice Ingestion on Neuromuscular Performance on Semi-Professional Female Rugby Players: A Randomized, Double-Blind, Placebo-Controlled Study

Cited by 7 publications

References 66 publications

Acute beetroot juice supplementation did not enhance intermittent running performance in trained rugby players

Acute beetroot juice supplementation did not enhance intermittent running performance in trained rugby players

Dietary Nitrate Ingestion Does Not Improve Neuromuscular Performance in Male Sport Climbers

On-ice and Field Performance Characteristics of Ice-hockey Players: Focusing on the Relation with Patient-reported Outcome

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