Caffeine and Sodium Citrate Ingestion

NCT ID: NCT01591226

Last Updated: 2016-11-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

9 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-02-29

Study Completion Date

2012-09-30

Brief Summary

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A positive ergogenic effect of sodium citrate and caffeine ingestion in a short-term, high-intensity exercise task was shown by several studies. These studies were conducted with healthy, able-bodied subjects.

The aim of the study is to investigate whether caffeine or sodium citrate ingestion could enhance performance in spinal cord injured wheelchair athletes. It is a double blind, placebo controlled and randomized study.

Detailed Description

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The athletes have to complete four 1500m tests on a training roller. Before each treatment they get different supplementations. Once they get sodium citrate and a placebo, once caffeine and a placebo, once sodium citrate and caffeine and for the fourth treatment they get twice a placebo. Two hours after starting with the supplementation they have to complete the 1500m as fast as possible. Time to complete 1500m, blood pH, plasma bicarbonate, sodium concentration, heart rate, oxygen consumption, blood lactate concentration and rate of perceived exertion (RPE) were measured.

Conditions

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Dietary Supplements Heart Rate/Drug Effects Lactic Acid/Metabolism Physical Education and Training/Methods Wheelchairs

Keywords

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caffeine sodium citrate exercise performance wheelchair athletes 1500m

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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Caffeine

6mg per kg bodyweight ingested 60min before test

Group Type ACTIVE_COMPARATOR

Caffeine

Intervention Type DIETARY_SUPPLEMENT

gelatine capsule 6mg/kg bodyweight 60min prior test

Sodium Chloride

Intervention Type DIETARY_SUPPLEMENT

sodium chloride diluted in 7dl water 0.045g/kg bodyweight 120-90min prior test

Placebo

Sodium chloride and mannitol as placebo are ingested by the athlete

Group Type PLACEBO_COMPARATOR

Mannitol

Intervention Type DIETARY_SUPPLEMENT

gelatine capsule filled with mannitol (100mg per capsule) ingested 60min prior test

Sodium Chloride

Intervention Type DIETARY_SUPPLEMENT

sodium chloride diluted in 7dl water 0.045g/kg bodyweight 120-90min prior test

Sodium Citrate

sodium citrate diluted in 7dl water, ingestion 120 to 90min prior test

Group Type ACTIVE_COMPARATOR

Sodium Citrate

Intervention Type DIETARY_SUPPLEMENT

0.5g/kg bodyweight diluted in 7dl water ingested 120-90min prior test

Mannitol

Intervention Type DIETARY_SUPPLEMENT

gelatine capsule filled with mannitol (100mg per capsule) ingested 60min prior test

Caffeine and Sodium Citrate

sodium citrate 120-90min prior test capsules:60min prior test

Group Type ACTIVE_COMPARATOR

Caffeine

Intervention Type DIETARY_SUPPLEMENT

gelatine capsule 6mg/kg bodyweight 60min prior test

Sodium Citrate

Intervention Type DIETARY_SUPPLEMENT

0.5g/kg bodyweight diluted in 7dl water ingested 120-90min prior test

Interventions

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Caffeine

gelatine capsule 6mg/kg bodyweight 60min prior test

Intervention Type DIETARY_SUPPLEMENT

Sodium Citrate

0.5g/kg bodyweight diluted in 7dl water ingested 120-90min prior test

Intervention Type DIETARY_SUPPLEMENT

Mannitol

gelatine capsule filled with mannitol (100mg per capsule) ingested 60min prior test

Intervention Type DIETARY_SUPPLEMENT

Sodium Chloride

sodium chloride diluted in 7dl water 0.045g/kg bodyweight 120-90min prior test

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* wheelchair athletes
* national team
* category T53 and T54

Exclusion Criteria

* medicated
* pregnant (for women)
* cardiovascular and respiratory diseases
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Swiss Paraplegic Research, Nottwil

NETWORK

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Claudio Perret, Dr. sc. nat.

Role: PRINCIPAL_INVESTIGATOR

Swiss Paraplegic Research, Nottwil

Locations

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Swiss Paraplegic Centre

Nottwil, Canton of Lucerne, Switzerland

Site Status

Countries

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Switzerland

Other Identifiers

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2012-02

Identifier Type: -

Identifier Source: org_study_id