Urinary n-terminal fragment of titin reflects muscle damage after a soccer match in male collegiate soccer players
Previous studies have demonstrated that noninvasive urinary N-terminal fragment of titin (U-titin) concentration highly correlates with serum creatine kinase (CK) activity, a classic invasive muscle damage marker. This finding indicates that U-titin could be used to estimate muscle damage. However, these results were achieved using a laboratory-based eccentric exercise model. Therefore, it remains unclear whether U-titin is useful for evaluating muscle damage occurring in field sports events. As a result, we evaluated whether U-titin concentration closely relates to serum CK activity after a soccer match. Seventeen collegiate soccer players (age: 20 ± 1 year; height: 172 ± 6 cm; body mass: 65 ± 5 kg; Yo-Yo intermittent recovery test level 2, 1,135 ± 196 m) completed a test match (2 halves of 45 minutes separated by 15 minutes of normal half-time). U-titin concentration, serum CK activity, countermovement jump performance, and muscle soreness were assessed 2 hours before the match and 30 minutes, 24 hours, and 48 hours after the match. U-titin concentrations and CK activity similarly increased at 24 hours and returned to the baseline value at 48 hours after the match. Moreover, the percentage of changes in U-titin concentration from baseline after the match significantly and positively correlated with serum CK activity (r = 0.82, p < 0.05). These results suggest that the noninvasive marker U-titin can be used to assess muscle damage conditions in field sports events, such as soccer matches.
© Copyright 2021 The Journal of Strength and Conditioning Research. National Strength & Conditioning Association. Kaikki oikeudet pidätetään.
Aiheet: | proteiini aminohappo kreatiini lihasfysiologia urheilufysiologia parametri lihas vahinko jalkapallo |
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Aihealueet: | urheilukilpailut biologiset ja lääketieteelliset tieteet |
Tagging: | Kreatinkinase |
DOI: | 10.1519/JSC.0000000000003923 |
Julkaisussa: | The Journal of Strength and Conditioning Research |
Julkaistu: |
2021
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Vuosikerta: | 35 |
Numero: | 2 |
Sivuja: | 360-365 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |