Sökning: WFRF:(Fransson Dan 1980)
> (2020) >
Muscle Metabolism a...
Muscle Metabolism and Fatigue during Simulated Ice Hockey Match-Play in Elite Players
-
Vigh-Larsen, J. F. (författare)
-
Ermidis, G. (författare)
-
Rago, V. (författare)
-
visa fler...
-
Randers, M. B. (författare)
-
- Fransson, Dan, 1980 (författare)
- Gothenburg University,Göteborgs universitet,Centrum för hälsa och prestationsutveckling,Institutionen för kost- och idrottsvetenskap,Center for Health and Performance,Department of Food and Nutrition, and Sport Science
-
Nielsen, J. L. (författare)
-
Gliemann, L. (författare)
-
Piil, J. F. (författare)
-
Morris, N. B. (författare)
-
De Paoli, F. V. (författare)
-
Overgaard, K. (författare)
-
Andersen, T. B. (författare)
-
Nybo, L. (författare)
-
Krustrup, P. (författare)
-
Mohr, M. (författare)
-
visa färre...
-
(creator_code:org_t)
- Ovid Technologies (Wolters Kluwer Health), 2020
- 2020
- Engelska.
-
Ingår i: Medicine and science in sports and exercise. - : Ovid Technologies (Wolters Kluwer Health). - 0195-9131 .- 1530-0315. ; 52:10, s. 2162-2171
- Relaterad länk:
-
https://journals.lww...
-
visa fler...
-
https://gup.ub.gu.se...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Purpose: The present study investigated muscle metabolism and fatigue during simulated elite male ice hockey match-play. Methods: Thirty U20 male national team players completed an experimental game comprising three periods of 8 x 1-min shifts separated by 2-min recovery intervals. Two vastus lateralis biopsies were obtained either during the game (n= 7) or pregame and postgame (n= 6). Venous blood samples were drawn pregame and at the end of the first and last periods (n= 14). Activity pattern and physiological responses were continuously monitored using local positioning system and heart rate recordings. Further, repeated-sprint ability was tested pregame and after each period. Results Total distance covered was 5980 +/- 199 m with almost half the distance covered at high skating speeds (>17 km.h(-1)). Average and peak on-ice heart rate was 84% +/- 2% and 97% +/- 2% of maximum heart rate, respectively. Muscle lactate increased (P <= 0.05) more than fivefold and threefold, whereas muscle pH decreased (P <= 0.05) from 7.31 +/- 0.04 pregame to 6.99 +/- 0.07 and 7.13 +/- 0.11 during the first and last periods, respectively. Muscle glycogen decreased by 53% postgame (P <= 0.05) with similar to 65% of fast- and slow-twitch fibers depleted of glycogen. Blood lactate increased sixfold (P <= 0.05), whereas plasma free fatty acid levels increased 1.5-fold and threefold (P <= 0.05) after the first and last periods. Repeated-sprint ability was impaired (similar to 3%;P <= 0.05) postgame concomitant with a similar to 10% decrease in the number of accelerations and decelerations during the second and last periods (P <= 0.05). Conclusions Our findings demonstrate that a simulated ice hockey match-play scenario encompasses a high on-ice heart rate response and glycolytic loading resulting in a marked degradation of muscle glycogen, particularly in specific sub-groups of fibers. This may be of importance both for fatigue in the final stages of a game and for subsequent recovery.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Idrottsvetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Sport and Fitness Sciences (hsv//eng)
Nyckelord
- glycogen
- performance
- high-intensity
- intermittent exercise
- team
- sport
- fiber-type
- high-intensity exercise
- glycogen availability
- performance
- carbohydrate
- physiology
- oxidation
- capacity
- fibers
- system
- soccer
- Sport Sciences
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Vigh-Larsen, J. ...
-
Ermidis, G.
-
Rago, V.
-
Randers, M. B.
-
Fransson, Dan, 1 ...
-
Nielsen, J. L.
-
visa fler...
-
Gliemann, L.
-
Piil, J. F.
-
Morris, N. B.
-
De Paoli, F. V.
-
Overgaard, K.
-
Andersen, T. B.
-
Nybo, L.
-
Krustrup, P.
-
Mohr, M.
-
visa färre...
- Om ämnet
-
- MEDICIN OCH HÄLSOVETENSKAP
-
MEDICIN OCH HÄLS ...
-
och Hälsovetenskap
-
och Idrottsvetenskap
- Artiklar i publikationen
-
Medicine and sci ...
- Av lärosätet
-
Göteborgs universitet