Association of Hematological Variables with Team-Sport Specific Fitness Performance.

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Version: author
Serval ID
serval:BIB_7424BEE55CCE
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Association of Hematological Variables with Team-Sport Specific Fitness Performance.
Journal
Plos One
Author(s)
Brocherie F., Millet G.P., Hauser A., Steiner T., Wehrlin J.P., Rysman J., Girard O.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Publication state
Published
Issued date
2015
Peer-reviewed
Oui
Volume
10
Number
12
Pages
e0144446
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: epublish
Abstract
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.
Keywords
Adult, Athletic Performance/physiology, Exercise Test, Hemoglobins/analysis, Hockey/physiology, Humans, Male, Physical Endurance/physiology
Pubmed
Web of science
Open Access
Yes
Create date
08/12/2015 14:33
Last modification date
20/08/2019 15:31
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