Consistencies in Responses to Sodium Bicarbonate?

June 17, 2015 updated by: Bruno Gualano, University of Sao Paulo

Consistencies in Responses to Sodium Bicarbonate Supplementation: a Randomised, Repeated Measures, Counterbalanced and Double-blind Study

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

15

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
      • Sao Paulo, Brazil, 05508-30
        • University of Sao Paulo

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 40 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Sodium bicarbonate
0.3 g∙kg-1body mass of sodium bicarbonate
Dietary supplement: sodium bicarbonate
Placebo Comparator: Placebo
0.3 g∙kg-1body mass of calcium carbonate
Dietary supplement: calcium carbonate

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
blood pH
Time Frame: 5 min after a physical exercise test
5 min after a physical exercise test

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
blood bicarbonate
Time Frame: 5 min after a physical exercise test
5 min after a physical exercise test
blood lactate
Time Frame: 5 min after a physical exercise test
5 min after a physical exercise test
anaerobic exercise capacity
Time Frame: 4 hours after supplementation
as assessed by cycling capacity tests at 110% of maximum power output
4 hours after supplementation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Sao Paulo

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2013

Primary Completion (Actual)

June 1, 2014

Study Completion (Actual)

June 1, 2014

Study Registration Dates

First Submitted

June 8, 2015

First Submitted That Met QC Criteria

June 17, 2015

First Posted (Estimate)

June 18, 2015

Study Record Updates

Last Update Posted (Estimate)

June 18, 2015

Last Update Submitted That Met QC Criteria

June 17, 2015

Last Verified

June 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Sodium bicarbonate consistency

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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