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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


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ORIGINAL ARTICLE  EXERCISE PHYSIOLOGY AND BIOMECHANICS


The Journal of Sports Medicine and Physical Fitness 2017 March;57(3):214-8

DOI: 10.23736/S0022-4707.16.06001-1

Copyright © 2015 EDIZIONI MINERVA MEDICA

lingua: Inglese

Alpha-amylase serum levels in professional soccer players are not related with physical fitness

Fabian SANCHIS-GOMAR 1, Rafael ALIS 2, 3, Ermanno RAMPININI 4, Andrea BOSIO 4, Marco ROMAGNOLI 1, 5, Giovanni LOMBARDI 6, Giuseppe LIPPI 7

1 Research Institute Hospital 1, Madrid, Spain; 2 Research Institute “Dr. Viña Giner”, Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain; 3 School of Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain; 4 Human Performance Laboratory, MAPEI Sport Research Center, Olgiate Olona, Varese, Italy; 5 Department of Physical Education and Sports, University of Valencia, Valencia, Spain; 6 Laboratory of Experimental Biochemistry and Molecular Biology, I.R.C.C.S. Istituto Ortopedico Galeazzi, Milan, Italy; 7 Laboratory of Clinical Chemistry and Hematology, Academic Hospital of Parma, Parma, Italy


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BACKGORUND: Recent evidence has showed that serum or salivary values of α-amylase predict endurance running performance. In this study we investigate whether serum α-amylase concentration may be associated with training status during a competitive season and after a detraining period in professional soccer players.
METHODS: The study population consisted in 15 male professional soccer players from an Italian major league team (age [mean±SD] 27±5 years, weight 76.9±4.1 kg, height 1.82±0.05 m). Serum α-amylase levels were measured 3 times during the last part of a competitive season (January, March and May) and just before preseason training (July).
RESULTS: Metabolic and cardiovascular fitness of soccer players was improved during the last part of the season. The levels of α-amylase did not change significantly throughout the study period (χ2=7.331, P=0.062), nor they were found to be associated with variation of physical fitness and training status.
CONCLUSIONS: The α-amylase fluctuations throughout a competitive season and after vacation time were meaningless in professional soccer players. No significant associations with physical fitness variations could be observed. These results suggest that α-amylase concentration may be a useful parameter for identifying individual inclination to endurance exercise, but not for predicting actual training status.


KEY WORDS: Exercise - Glucose - Homeostasis

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Publication History

Issue published online: January 26, 2017
Article first published online: December 1, 2015
Manuscript accepted: November 25, 2015
Manuscript revised: October 30, 2015
Manuscript received: July 12, 2015

Per citare questo articolo

Sanchis-Gomar F, Alis R, Rampinini E, Bosio A, Romagnoli M, Lombardi G, et al. Alpha-amylase serum levels in professional soccer players are not related with physical fitness. J Sports Med Phys Fitness 2017;57:214-8. DOI: 10.23736/S0022-4707.16.06001-1

Corresponding author e-mail

fabian.sanchis@uv.es