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dc.contributor.author | Guerrero, Mario |
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dc.contributor.author | Carmona Dalmases, Gerard |
dc.contributor.author | Rodas Font, Gil |
dc.contributor.author | Cadefau Surroca, Joan Aureli |
dc.contributor.author | Maestro, Antonio |
dc.contributor.author | Cussó Fresquet, M. Roser |
dc.date | 2020-02-12T18:27:14Z |
dc.date | 2020-11-01T06:10:19Z |
dc.date | 2019-11-01 |
dc.date | 2020-02-12T18:27:14Z |
dc.identifier | 0022-4707 |
dc.identifier | http://hdl.handle.net/2445/150013 |
dc.identifier | 695260 |
dc.identifier.uri | http://hdl.handle.net/2445/150013 |
dc.description | BACKGROUND: To measure the impact of training models on injury incidence, data of health and performance were integrated to study fiber adaptation during a competitive season. We studied football players over a season, analyzing hours of exposure to sport by serum changes in fast and slow myosin, creatine kinase and lactate dehydrogenase. METHODS: A new assay was developed to measure the myosin isoforms in 49 non-sporting volunteers and in 27 professional football players. RESULTS: Myosin isoforms in volunteers with mean ages of 30±8 were 1553 µg/L fast and 1284 µg/L slow; in the group with of 56±7 were 1426 µg/L fast and 1046 µg/L slow. Slow myosin was significantly lower in older subjects (-18%). Samples from the players in preseason had lower mean scores for fast myosin (1123 µg/L) and higher for slow myosin (2072 µg/L) than reference volunteers. During the season, myosins reached the maximum with the maximum load (1537 µg/L fast, 2195 µg/L slow but decreased and adapted to the high level of demand (425 µg/L fast, 1342 µg/L slow). CK and LDH were maximal at the pre-season (227 U/L, 333 U/L) while myosin levels were maximal at the beginning of season (1537 µg/L, 2195 µg/L). CONCLUSIONS: Measuring serum myosin isoforms we identify the type and amount of damage caused by training and matches, making it a new control tool capable of advising training towards a minimum of blood slow myosin but controlling the fast fiber participating and be able to improve the performance of the players. |
dc.format | 7 p. |
dc.format | application/pdf |
dc.language | eng |
dc.publisher | Minerva Medica. |
dc.relation | https://doi.org/10.23736/S0022-4707.19.09463-5 |
dc.relation | Journal of Sports Medicine and Physical Fitness, 2019, vol. 59, num. 11, p. 1828-1834 |
dc.relation | https://doi.org/10.23736/S0022-4707.19.09463-5 |
dc.rights | , 2019 |
dc.rights | info:eu-repo/semantics/openAccess |
dc.subject | Futbol |
dc.subject | Exercici |
dc.subject | Fisiologia de l'exercici |
dc.subject | Músculs |
dc.subject | Soccer |
dc.subject | Exercise |
dc.subject | Exercise physiology |
dc.subject | Muscles |
dc.title | Assessment of muscle fiber adaptation in footballers using a new ELISA assay of myosin isoforms |
dc.type | info:eu-repo/semantics/article |