Muscle metabolism and impaired sprint performance in an elite women's football game
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Muscle metabolism and impaired sprint performance in an elite women's football game. / Krustrup, Peter; Mohr, Magni; Nybo, Lars; Draganidis, Dimitrios; Randers, Morten Bredsgaard; Ermidis, Georgios; Ørntoft, Christina; Røddik, Line; Batsilas, Dimitrios; Poulios, Athanasios; Ørtenblad, Niels; Loules, Georgios; Deli, Charikleia K; Batrakoulis, Alexios; Nielsen, Jakob L; Jamurtas, Athanasios Z; Fatouros, Ioannis G.
In: Scandinavian Journal of Medicine & Science in Sports, Vol. 32, No. S1, 2022, p. 27-38.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Muscle metabolism and impaired sprint performance in an elite women's football game
AU - Krustrup, Peter
AU - Mohr, Magni
AU - Nybo, Lars
AU - Draganidis, Dimitrios
AU - Randers, Morten Bredsgaard
AU - Ermidis, Georgios
AU - Ørntoft, Christina
AU - Røddik, Line
AU - Batsilas, Dimitrios
AU - Poulios, Athanasios
AU - Ørtenblad, Niels
AU - Loules, Georgios
AU - Deli, Charikleia K
AU - Batrakoulis, Alexios
AU - Nielsen, Jakob L
AU - Jamurtas, Athanasios Z
AU - Fatouros, Ioannis G
N1 - © 2021 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
PY - 2022
Y1 - 2022
N2 - The present study examined skeletal muscle metabolism and changes in repeated sprint performance during match play for n = 20 competitive elite women outfield players. We obtained musculus vastus lateralis biopsies and blood samples before, after, and following intense periods in each half of a friendly match, along with 5 × 30-meter sprint tests and movement pattern analyses (10-Hz S5 Global Positioning System [GPS]). Muscle glycogen decreased by 39% and 42% after an intense period of the second half and after the match, respectively, compared to baseline (p < 0.05). Post-match, 80% type I fibers and 69% type II fibers were almost empty or completely empty of glycogen. Muscle lactate was higher (p < 0.05) after the intense period of the first half and post-match compared to baseline (14.3 ± 4.6 (±SEM) and 12.9 ± 5.7 vs. 6.4 ± 3.7 mmol/kg d.w.). Muscle phosphocreatine was reduced (p < 0.05) by 16% and 12%, respectively, after an intense period in the first and second half compared to baseline. Blood lactate and glucose increased during the match and peaked at 8.4 ± 2.0 and 7.9 ± 1.2 mmol/L, respectively. Mean 5 × 30 m sprint time declined by 3.2 ± 1.7 and 7.0 ± 2.1% after the first and second half, respectively, and 4.7 ± 1.6% (p < 0.05) after an intense period in the first half compared to baseline. In conclusion, match play in elite female football players resulted in marked glycogen depletion in both fiber types, which may explain fatigue at the end of a match. Repeated sprint ability was impaired after intense periods in the first half and after both halves, which may be associated with the observed muscle metabolite perturbations.
AB - The present study examined skeletal muscle metabolism and changes in repeated sprint performance during match play for n = 20 competitive elite women outfield players. We obtained musculus vastus lateralis biopsies and blood samples before, after, and following intense periods in each half of a friendly match, along with 5 × 30-meter sprint tests and movement pattern analyses (10-Hz S5 Global Positioning System [GPS]). Muscle glycogen decreased by 39% and 42% after an intense period of the second half and after the match, respectively, compared to baseline (p < 0.05). Post-match, 80% type I fibers and 69% type II fibers were almost empty or completely empty of glycogen. Muscle lactate was higher (p < 0.05) after the intense period of the first half and post-match compared to baseline (14.3 ± 4.6 (±SEM) and 12.9 ± 5.7 vs. 6.4 ± 3.7 mmol/kg d.w.). Muscle phosphocreatine was reduced (p < 0.05) by 16% and 12%, respectively, after an intense period in the first and second half compared to baseline. Blood lactate and glucose increased during the match and peaked at 8.4 ± 2.0 and 7.9 ± 1.2 mmol/L, respectively. Mean 5 × 30 m sprint time declined by 3.2 ± 1.7 and 7.0 ± 2.1% after the first and second half, respectively, and 4.7 ± 1.6% (p < 0.05) after an intense period in the first half compared to baseline. In conclusion, match play in elite female football players resulted in marked glycogen depletion in both fiber types, which may explain fatigue at the end of a match. Repeated sprint ability was impaired after intense periods in the first half and after both halves, which may be associated with the observed muscle metabolite perturbations.
KW - Faculty of Science
KW - Fatigue
KW - Heart rate
KW - Muscle glycogen depletion
KW - Muscle lactate
KW - Muscle phosphagens
KW - Soccer
KW - Sprint performance
U2 - 10.1111/sms.13970
DO - 10.1111/sms.13970
M3 - Journal article
C2 - 34171140
VL - 32
SP - 27
EP - 38
JO - Scandinavian Journal of Medicine & Science in Sports
JF - Scandinavian Journal of Medicine & Science in Sports
SN - 0905-7188
IS - S1
ER -
ID: 273069702