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Influence of Sodium Bicarbonate on Time-to-exhaustion at Critical Power in Endurance Athletes

NCT01621074 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 12

Last updated 2013-04-12

No results posted yet for this study

Summary

During endurance exercise in the heavy and severe intensity domains, the rate at which metabolites that have been associated with the fatigue process (e.g. Pi, ADP, H, and extracellular K) accumulate increases. possibly leading to exercise cessation. Sodium bicarbonate, as a nutritional supplement, has gained attention over the past decades, because it might delay of offset fatigue. To date, there is a controversial discussion about which delivery mode (amount and frequency) might be best in optimizing endurance performance. Since the high ion load consequent to multiple ingestions might increase plasma volume, and consequently decrease bicarbonate concentrations, single acute ingestion could be more beneficial. However, in multi-day competitions or tournaments it might be necessary to use the supplement on a daily basis. Here, the investigators aim at investigating the effects of single dose or multiple dose (on five consecutive days) administration of bicarbonate vs. placebo increases endurance performance and acid-base homeostasis in trained male endurance athletes.

Conditions

  • Performance

Interventions

DIETARY_SUPPLEMENT

Sodium bicarbonate

Ergogenic effect

DIETARY_SUPPLEMENT

Placebo

Placebo effect

Sponsors & Collaborators

  • Swiss Federal Institute of Technology

    collaborator OTHER

  • University of Zurich

    lead OTHER

Principal Investigators

  • Neurologie: Neurologische Forschung · University Hospital Zurich, Division of Neurology

  • Marco Toigo, PhD · Swiss Federal Institute of Technology Zurich

Study Design

Allocation
RANDOMIZED
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2011-10-31
Primary Completion
2012-08-31
Completion
2013-01-31

Countries

  • Switzerland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01621074 on ClinicalTrials.gov