Nitric Oxide, Placebo
Conditions
Keywords
dietary supplements, nitrate, sports performance
Brief summary
Rugby is a team sport characterized by high-intermittent efforts, due to the importance of realizing intermittent and explosive efforts in rugby the use of nutritional strategies such as beetroot ingestion should be explored with the aim to enhance the capacity for repeating high-intensity actions in female players.
Detailed description
Rugby is a team sport characterized by high-intermittent efforts, thus, to the importance of realizing intermittent and explosive efforts in field hockey is crucial. For this reason, the use of nutritional strategies in field hockey should be explored with the aim to enhance the capacity for repeating high-intensity actions. However, scientific evidence supports only a few numbers of dietary supplements that have reported good evidence for improving sports performance, between we can mention beetroot juice supplementation with doses \> 5 mmol of NO3-. Beetroot juice is a NO3- precursor with recognized effectiveness to elicit performance due to different physiological mechanisms associated with its ingestion such as increment in vasodilatation, skeletal muscle contractility, or delaying fatigue development that could be linked with an enhance or performance in team-sports athletes. However, the majority of the studies has been realized in male athletes being female athletes underrepresented in beetroot juice supplementation research. Thus, the aim of this study was to analyze the effects of beetroot juice ingestion on neuromuscular performance in female rugby players.
Interventions
DIETARY_SUPPLEMENTBeetroot juice
Acute effects of beetroot juice ingestion on neuromuscular performance in female rugby players
Sponsors
University of Seville
Universidad Complutense de Madrid
University of Alcala
Universidad Francisco de Vitoria
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
* More than 5 years of rugby training experience. * Active rugby player
Exclusion criteria
* Concurrently participating in other studies. * Contraindications to beetroot juice ingestion. * Physical limitations, health problems, or musculoskeletal injuries.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Changes in Bronco Aerobic Fitness Test | 1-week | Time to complete test using photocell timing gates |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes in maximal isometric handgrip strength (kg) | 1-week | Using a hand-held dynamometer |
| Changes in maximal jump height (cm) | 1 week | Maximal jump height using a contact platform |
| Changes in 30-meters sprint time (s) | 1 week | Time to complete 30-m sprints using photocell timing gates |
| Changes in rate of perceived exertion scale | 1-week | Differences between placebo and beetroot juice in rate of perception exertion scale |
| Changes in side effects questionnarie | 1-week | Differences between placebo and beetroot juice in side effects health aspects |
Countries
Spain
Outcome results
None listed