Podrobná bibliografie
| Název: |
Durability in Junior Cyclists After Work Above Critical Power: Implications for Talent Identification. |
| Autoři: |
Mateo-March, Manuel, Sánchez-Jiménez, Jose Luis, Peña-González, Iván, Moya-Ramón, Manuel, Javaloyes, Alejandro |
| Zdroj: |
International Journal of Sports Physiology & Performance; Dec2025, Vol. 20 Issue 12, p1739-1744, 6p |
| Témata: |
MUSCLE fatigue, REFERENCE values, STATISTICAL models, STATISTICAL correlation, CROSS-sectional method, T-test (Statistics), ANAEROBIC threshold, SCIENTIFIC observation, AEROBIC capacity, EXERCISE intensity, DESCRIPTIVE statistics, CYCLING, ENERGY metabolism, PHYSICAL fitness, ABILITY, RESEARCH, ATHLETIC ability, OXYGEN consumption, COMPARATIVE studies, DATA analysis software, SCOUTING (Athletics), TIME, PREDICTIVE validity |
| Abstrakt: |
Background: Durability, defined as the ability to sustain performance following efforts above critical power (CP), is a critical determinant of elite cycling performance, yet its role in junior cyclists remains underexplored despite its relevance for talent identification. Objective: This study aimed to compare physiological profiles and high-intensity durability between an international-level group (ILG) and a national-level group (NLG) of junior cyclists, establishing normative values for talent detection. Methods: Forty-six male junior cyclists (ILG, n = 20; NLG, n = 26) were evaluated over a full season. CP, maximal aerobic power, and power-output decay (percentage of decay) after energy expenditures above CP (25–200 kJ) were measured using field-derived data across 6 durations (5 s to 30 min). Independent t tests and linear mixed models assessed group differences (P <.05). Results: ILG demonstrated higher CP (383 vs 341 W, P =.003), maximal aerobic power (ILG 434 [54] W vs NLG 391 [44] W, P =.004), and minutes above CP (137 vs 113 min, P =.022) than NLG. NLG exhibited lower percentage of decay at 1 minute (−4.37%, P =.016), suggesting greater durability in short efforts. However, ILG showed lower percentage of decay at 5 to 30 minutes (eg, 1.7% at 5 min, P =.001), reflecting endurance capacity. Interindividual variability in percentage of decay (36%) underscored diverse fatigue responses among cyclists. Conclusion: ILG's aerobic advantage and durability in prolonged efforts, contrasted with NLG's resilience in short efforts, highlight durability after work above CP as a talent marker. Normative percentage-of-decay values provide benchmarks for junior talent identification. [ABSTRACT FROM AUTHOR] |
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| Databáze: |
Complementary Index |
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