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Feser, Sebastian ; Hohmann, Andreas ; Behr, Joshua:
The International Swimming League : An Analysis from a training science perspective.
In: Witt, M.
(Hrsg.):
XIVth International Symposium on Biomechanics and Medicine in Swimming Proceedings. -
Leipzig
,
2023
. - S. 165
Abstract
INTRODUCTION
This study investigated whether participation in the ISL in 2020 had an impact on swimmers' Olympic preparation and whether participation in the ISL influenced swimmers' performance at the Olympic Games (OS) in Tokyo 2021.
METHODS
This study is a retrospective analysis of publicly available data. The team line-ups from the ISL homepage were used for the analysis. In the second season of ISL, a total of 309 athletes from 45 countries competed in ten teams. The selection of athletes for the study was based on various criteria. One minimum criterion was that the athletes had participated in at least one individual event at the Olympic Games and that this event had been completed at least twice within the entire 2020 ISL season. The training science question was answered by means of two statistical key figures, the coefficient of variation (VarK) and the odds ratios (OR). In addition, with the help of the OR, it was possible to investigate at which point in time an Olympic qualification competition should be held.
RESULTS
The extracted data was processed using Excel, which was transferred to SPSS for further statistical analyses. The calculated VarK illustrate the high performance stability shown by athletes during the ISL period (VarKISL = 1.62 % ± 0.96 %). The calculated ORs indicate a slight positive influence on performance at the OS when participating in the final competitions in calendar weeks 45 (OR = 1.18, x² = 0.154, p = 0.695) and 46 (OR = 1.35, x² = 0.349, p = 0.555) of the ISL. However, the previous competitions show a slight, non-significant, negative influence. Furthermore, it can be deduced from the ORs that both an early Olympic qualification (OR = 2.10; x² = 0.326; p = 0.515) (approx. 14 weeks before the Olympic Games) and a late Olympic qualification (OR = 4.80, x² = 29.25; p = 0.087) (approx. four weeks) have a positive influence.
DISCUSSION
Participation in ISL 2020 had a small positive impact on the athletes' performance at the 2021 Olympic Games in Tokyo. The ISL has shown potential influence on youth development, e.g. through the introduction of an ISL Junior League. The ISL as a professional league system in swimming leads to immense difficulties in the optimal planning and control of training and competitions due to a progressive compression of the competition calendar. It remains to be seen what influence a regular season lasting several months will have on the athletes' performance at seasonal highlights.