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Trial record 1 of 1 for:    soccerlab
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Effect of Elite Soccer Training on Routine Laboratory Parameters (SOCCERLAB)

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ClinicalTrials.gov Identifier: NCT00946855
Recruitment Status : Completed
First Posted : July 27, 2009
Last Update Posted : July 27, 2009
Sponsor:
Information provided by:
Universität des Saarlandes

Study Description
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Brief Summary:
Repeated blood sampling within a regular soccer season of German first league clubs shall serve to define soccer-specific reference values for routine parameters determined from venous blood. It was hypothesized that only for a minor number of parameters common reference values will have to be adapted for soccer players during their competitive season.

Condition or disease
Stress

Detailed Description:
It is often difficult to discern exercise-induced changes in laboratory parameters from pathological changes in elite athletes during the regular training process. This is particularly true in soccer players who compete more often than many other athletes. Therefore, soccer players of the first two German soccer leagues (all professional athletes) are recruited for repeated blood sampling during the season (4 sampling times, one of them immediately before training commences in the summer, the other ones in October/November, February/March, and April/May). Among other standardizing requirements, it is mandatory that precisely one training session (not zero, not two, no competition) takes place the day before sampling. Several confounders for the interpretation of laboratory results are verified by means of a questionnaire. Phases of high competitive stress are compared with those of low stress. The course of the parameters as well as confidence intervals for given times during the season are of main interest.
Study Design
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Study Type : Observational
Actual Enrollment : 467 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Laboratory Values in Elite Soccer Players
Study Start Date : August 2008
Actual Primary Completion Date : May 2009
Actual Study Completion Date : July 2009
Groups and Cohorts
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Group/Cohort
soccer players
players of the first two German soccer leagues


Outcome Measures
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Primary Outcome Measures :
  1. complete blood count [ Time Frame: August 2008 until May 2009 ]

Secondary Outcome Measures :
  1. numerous serum parameters from venous blood [ Time Frame: August 2008 until May 2009 ]

Biospecimen Retention:   Samples Without DNA
iced serum samples

Eligibility Criteria
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Ages Eligible for Study:   18 Years to 40 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
soccer players of the first two German professional soccer leagues
Criteria

Inclusion Criteria:

  • being employed as player by a club of the first two German soccer leagues
  • healthy

Exclusion Criteria:

  • chronic disease interfering with one or more of the determined parameters
Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00946855


Locations
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Germany
Institute of Sports and Preventive Medicine, University of Saarland, Campus, Bldg. B 8-2,
Saarbrücken, Saarland, Germany, 66123
Sponsors and Collaborators
Universität des Saarlandes
Investigators
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Principal Investigator: Tim Meyer, MD, PhD Institute of Sports and Preventive Medicine, University of Saarland, Campus, Bldg. B 8-2, 66123 Saarbrücken, Germany
More Information
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Additional Information:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: Prof. Dr. med. Tim Meyer, Institute of Sports and Preventive Medicine, University of Saarland, Campus Bldg. B 8-2, 66123 Saarbrücken, Germany
ClinicalTrials.gov Identifier: NCT00946855    
Other Study ID Numbers: Soccer laboratory values
First Posted: July 27, 2009    Key Record Dates
Last Update Posted: July 27, 2009
Last Verified: July 2009
Keywords provided by Universität des Saarlandes:
soccer
laboratory
reference
exercise
 variability
season
elite athletes
Define reference blood parameters in elite athletes