Association of hematological variables with team-sport specific fitness performance

Brocherie, Franck; Millet, Grégoire P.; Hauser, Anna; Steiner, Thomas; Wehrlin, Jon Peter; Rysman, Julien; Girard, Olivier (2015). Association of hematological variables with team-sport specific fitness performance PLOS ONE, 10(12), pp. 1-12. PLOS 10.1371/journal.pone.0144446

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Purpose: We investigated association of hematological variables with specific fitness performance in elite team-sport players. Methods: Hemoglobin mass (Hbmass) was measured in 25 elite field hockey players using the optimized (2 min) CO-rebreathing method. Hemoglobin concentration ([Hb]), hematocrit and mean corpuscular hemoglobin concentration (MCHC) were analyzed in venous blood. Fitness performance evaluation included a repeated-sprint ability (RSA) test (8 x 20 m sprints, 20 s of rest) and the Yo-Yo intermittent recovery level 2 (YYIR2). Results: Hbmass was largely correlated (r = 0.62, P<0.01) with YYIR2 total distance covered (YYIR2TD) but not with any RSA-derived parameters (r ranging from -0.06 to -0.32; all P>0.05). [Hb] and MCHC displayed moderate correlations with both YYIR2TD (r = 0.44 and 0.41; both P<0.01) and RSA sprint decrement score (r = -0.41 and -0.44; both P<0.05). YYIR2TD correlated with RSA best and total sprint times (r = -0.46, P<0.05 and -0.60, P<0.01; respectively), but not with RSA sprint decrement score (r = -0.19, P>0.05). Conclusion: Hbmass is positively correlated with specific aerobic fitness, but not with RSA, in elite team-sport players. Additionally, the negative relationships between YYIR2 and RSA tests performance imply that different hematological mechanisms may be at play. Overall, these results indicate that these two fitness tests should not be used interchangeably as they reflect different hematological mechanisms.

Item Type:

Journal Article (Original Article)

Division/Institute:

Swiss Federal Institute of Sports Magglingen SFISM > EHSM - Leistungssport > Sportphysiologie Ausdauer

Name:

Brocherie, Franck;
Millet, Grégoire P.;
Hauser, Anna;
Steiner, Thomas;
Wehrlin, Jon Peter;
Rysman, Julien and
Girard, Olivier

ISSN:

1932-6203

Publisher:

PLOS

Language:

English

Submitter:

Admin import user

Date Deposited:

14 Dec 2020 16:39

Last Modified:

14 Dec 2020 16:39

Publisher DOI:

10.1371/journal.pone.0144446

Related URLs:

PubMed ID:

26641647

Uncontrolled Keywords:

Adult Athletic performance physiology Exercise test Hemoglobins analysis Hockey physiology Humans Male Physical endurance physiology

ARBOR DOI:

10.24451/arbor.10941

URI:

https://arbor.bfh.ch/id/eprint/10941

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