TY  - JOUR
A1  - Willberg, Christina
A1  - Wieland, Björn
A1  - Rettenmaier, Lukas
A1  - Behringer, Michael
A1  - Zentgraf, Karen
T1  - The relationship between external and internal load parameters in 3 × 3 basketball tournaments
T2  - BMC sports science, medicine & rehabilitation
N2  - Purpose: 3 × 3 basketball games are characterized by high-intensity accelerations and decelerations, and a high number of changes of direction and jumps. It is played in tournament form with multiple games per day. Therefore, optimal regeneration is crucial for maintaining a high performance level over the course of the tournament. To elucidate how load of a match affects the athletes' bodies (i.e., internal load), muscular responses to the load of 3 × 3 games were analyzed. We aimed to investigate changes in contractility of the m. rectus femoris (RF) and m. gastrocnemius medialis (GC) in response to the load of single 3 × 3 games and a 3 × 3 tournament.
Methods: Inertial movement analysis was conducted to capture game load in 3 × 3. Changes in contractility were measured using tensiomyography (TMG). During a two-day tournament, TMG measurements were conducted in the morning and after each game. Additionally, off-game performance analysis consisting of jump and change-of-direction (COD) tests was conducted the day before the tournament.
Results: Significant changes of the muscle contractility were found for GC with TMG values being higher in the baseline than in the post-game measurements. In contrast to athletes of the GC group, athletes of the RF group responded with either decreased or increased muscle contractility after a single 3 × 3 game. A significant correlation between external and internal load parameters could not be shown. Concerning off-game performance, significant correlations can be reported for COD test duration, CMJ height and ∆Vc as well as COD test duration and ∆Dm. No systematic changes in muscle contractility were found over the course of the tournament in RF and GC.
Conclusion: The athletes' external 3 × 3 game load and their performance level did not seem to affect muscular contractility after a single 3 × 3 game or a complete 3 × 3 tournament within this investigation. This might indicate that elite athletes can resist external load without relevant local muscular fatigue. With respect to the course of the tournament, it can therefore be concluded that the breaks between games seem to be sufficient to return to the initial level of muscle contractility.
KW  - External load
KW  - LPS
KW  - Internal load
KW  - Team sport
KW  - Time-motion analysis
KW  - TMG
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/75220
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-752206
SN  - 2052-1847
N1  - The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
N1  - Open Access funding enabled and organized by Projekt DEAL.
N1  - Funding: Bundesinstitut für Sportwissenschaft (Federal Institute for Sport Sciences) ; 070702/20-21
N1  - Gefördert durch den Open-Access-Publikationsfonds der Goethe-Universität
VL  - 14.2022
IS  - art. 152
SP  - 1
EP  - 11
PB  - BioMed Central
CY  - London
ER  -