Effect of Elite Soccer Training on Routine Laboratory Parameters

NCT ID: NCT00946855

Last Updated: 2009-07-27

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

Total Enrollment

467 participants

Study Classification

OBSERVATIONAL

Study Start Date

2008-08-31

Study Completion Date

2009-07-31

Brief Summary

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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.

Detailed Description

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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.

Conditions

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Stress

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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soccer players

players of the first two German soccer leagues

No interventions assigned to this group

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Universität des Saarlandes

OTHER

Sponsor Role lead

Responsible Party

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Institute of Sports and Preventive Medicine, University of Saarland, Campus Bldg. B 8-2, 66123 Saarbrücken, Germany

Principal Investigators

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Tim Meyer, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Institute of Sports and Preventive Medicine, University of Saarland, Campus, Bldg. B 8-2, 66123 Saarbrücken, Germany

Locations

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Institute of Sports and Preventive Medicine, University of Saarland, Campus, Bldg. B 8-2,

Saarbrücken, Saarland, Germany

Site Status

Countries

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Germany

References

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Breitbart P, Meister S, Meyer T, Gartner BC. Incidence and Prevalence of Borrelia burgdorferi Antibodies in Male Professional Football Players. Clin J Sport Med. 2021 Jul 1;31(4):e200-e206. doi: 10.1097/JSM.0000000000000758.

Reference Type DERIVED
PMID: 31241490 (View on PubMed)

Meyer T, Meister S. Routine blood parameters in elite soccer players. Int J Sports Med. 2011 Nov;32(11):875-81. doi: 10.1055/s-0031-1280776. Epub 2011 Oct 21.

Reference Type DERIVED
PMID: 22020850 (View on PubMed)

Related Links

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Other Identifiers

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Soccer laboratory values

Identifier Type: -

Identifier Source: org_study_id

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