The aim of this master’s thesis was to analyze differences in sports diagnostic results between
two generations of young alpine skiers in the U16 category and to examine the potential effects of
a change in the testing sequence, specifically the 400-m run. Testing was conducted at the Faculty
of Sport in 2024 and 2025. In 2024, the 400 m run was performed at the end of the testing session,
whereas in 2025 it was conducted at the beginning. The sample consisted of 109 athletes of both
sexes. Data were analysed using descriptive statistics, normality tests, independent-sample t
tests or Mann-Whitney tests, effect size estimation and correlation analysis. Statistically
significant differences were found only in the 400 m run, which was an expected consequence of
the altered testing order, and in trunk stabilisation, where the differences cannot be
unambiguously attributed to the protocol change. The study highlights the importance of strict
standardisation of testing protocols in sports diagnostics. Its findings contribute to a deeper
understanding of fatigue-related effects on performance outcomes and support more accurate
interpretation of testing data in long-term athletic development of young alpine skiers.
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