Effect of Elite Soccer Training on Routine Laboratory Parameters (SOCCERLAB)
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Purpose
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 |
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Stress |
| Study Type: | Observational |
| Study Design: | Observational Model: Cohort Time Perspective: Prospective |
| Official Title: | Laboratory Values in Elite Soccer Players |
- complete blood count [ Time Frame: August 2008 until May 2009 ] [ Designated as safety issue: No ]
- numerous serum parameters from venous blood [ Time Frame: August 2008 until May 2009 ] [ Designated as safety issue: No ]
Biospecimen Retention: Samples Without DNA
iced serum samples
| Enrollment: | 467 |
| Study Start Date: | August 2008 |
| Study Completion Date: | July 2009 |
| Primary Completion Date: | May 2009 (Final data collection date for primary outcome measure) |
| Groups/Cohorts |
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soccer players
players of the first two German soccer leagues
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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.
Eligibility| Ages Eligible for Study: | 18 Years to 40 Years |
| Genders Eligible for Study: | Male |
| Accepts Healthy Volunteers: | Yes |
| Sampling Method: | Non-Probability Sample |
soccer players of the first two German professional soccer leagues
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| Germany | |
| Institute of Sports and Preventive Medicine, University of Saarland, Campus, Bldg. B 8-2, | |
| Saarbrücken, Saarland, Germany, 66123 | |
| 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
Additional Information:
No publications provided by Saarland University
Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
| 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 History of Changes |
| Other Study ID Numbers: | Soccer laboratory values |
| Study First Received: | July 24, 2009 |
| Last Updated: | July 24, 2009 |
| Health Authority: | Germany: Ethics Commission |
Keywords provided by Saarland University:
|
soccer laboratory reference exercise |
variability season elite athletes Define reference blood parameters in elite athletes |
ClinicalTrials.gov processed this record on May 22, 2013