Sports Nutritional Physiological Phenomena
Conditions
Keywords
Physiological Phenomena
Brief summary
Intervention studies do not account for high within-individual variation potentially compromising the magnitude of an effect. Repeat administration of a treatment allows quantification of individual responses and determination of the consistency of responses. The investigators aim to determine the consistency of metabolic and exercise responses following repeated administration of sodium bicarbonate (SB). Design and Methods: 15 physically active males will complete six cycling capacity tests at 110% of maximum power output (CCT110%) following ingestion of either 0.3 g∙kg-1Body Mass of SB (4 trials) or placebo (PL, 2 trials). Blood pH, bicarbonate, base excess and lactate will be determined at baseline, pre-exercise, post-exercise and 5-min post-exercise. Total work done (TWD) will be recorded as the exercise outcome.
Interventions
DIETARY_SUPPLEMENTsodium bicarbonate
DIETARY_SUPPLEMENTcalcium carbonate
Sponsors
University of Sao Paulo
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
MALE
Age
18 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
* recreationally active males
Exclusion criteria
* use of dietary supplements in the past 6 months * the presence of any musculoskeletal disorder * the use of anabolic steroids
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| blood pH | 5 min after a physical exercise test |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| blood bicarbonate | 5 min after a physical exercise test | — |
| blood lactate | 5 min after a physical exercise test | — |
| anaerobic exercise capacity | 4 hours after supplementation | as assessed by cycling capacity tests at 110% of maximum power output |
Countries
Brazil
Outcome results
None listed