Dietary Supplement, Sport Performance
Conditions
Brief summary
Whereas beetroot juice (BJ) supplementation is shown to increase physical performance in endurance activities, its benefits in neuromuscular function and strength performance has been barely studied. In this cross-over randomized placebo-controlled study, we investigated the effects of BJ acute supplementation in improving neuromuscular performance in amateur climbers
Interventions
DIETARY_SUPPLEMENTBeetroot Juice (BJ) acute supplementation
One serving of 70 mL of BJ (6.4 mmol of NO3) 3h before initiating the testing session
DIETARY_SUPPLEMENTPlacebo Juice (PLA) acute supplementation
One serving of 70 mL of juice (0.005 mmol of NO3) 3h before initiating the testing session
Sponsors
Universidad Francisco de Vitoria
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
MALE
Age
18 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
* more than 18 years * active climbing for, at least, last 6 months
Exclusion criteria
* smoking * contraindications to BJ diet * physical limitations, health problems, or musculoskeletal injuries
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Changes in rate of force development (N/s) at 50, 100 and 200 ms; and at 95% of maximal force | 1 week | Using a force sensor |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes in nitrites and nitrates levels in saliva (μmol/L) | 1 week | Using specific kit ELISA analysis |
| Changes in maximal number of pull-ups | 1 week | — |
| Changes in maximal isometric handgrip strength (kg) | 1 week | Using a dynamometer |
| Changes in maximal jump height (cm) | 1 week | Maximal jump height using a contact platform |
Countries
Spain
Outcome results
None listed