Performance-determining variables in long-distance events: Should they be determined from a rested state or after prolonged submaximal exercise?
(Leistungsbestimmende Variablen bei Langstreckenläufen: Sollten sie im Ruhezustand oder nach längerer submaximaler Belastung bestimmt werden?)
Performance-determining variables are usually measured from a rested state and not after prolonged exercise, specific to when athletes compete for the win in long-distance events.
Purpose:
(1) To compare cross-country skiing double-poling (DP) performance and the associated physiological and biomechanical performance-determining variables between a rested state and after prolonged exercise and (2) to investigate whether the relationship between the main performance-determining variables and DP performance is different after prolonged submaximal DP than when tested from a rested state.
Methods:
Male cross-country skiers (N = 26) performed a blood lactate profile test and an incremental test to exhaustion from a rested state on day 1 (D1; all using DP) and after 90-minute submaximal DP on day 2 (D2).
Results:
The DP performance decreased following prolonged submaximal DP (D1: peak speed = 15.33-20.75 km·h-1, median = 18.1 km·h-1; D2: peak speed = 13.68-19.77 km·h-1, median = 17.8 km·h-1; z = -3.96, P < .001, effect size r = -.77), which coincided with a reduced submaximal gross efficiency and submaximal and peak cycle length, with no significant change in peak oxygen uptake (P = .26, r = .23). The correlation coefficient between D1 cycle length at 12 km·h-1 and D2 performance is significantly smaller than the correlation coefficient between D2 cycle length at 12 km·h-1 and D2 performance (P = .033), with the same result being found for peak cycle length (P < .001).
Conclusions:
The reduced DP performance after prolonged submaximal DP coincided with a reduced submaximal gross efficiency and shorter peak cycle length. The results indicate that performance-determining variables could be determined after prolonged exercise to gain more valid insight into long-distance DP performance.
© Copyright 2021 International Journal of Sports Physiology and Performance. Alle Rechte vorbehalten.
Schlagworte: | Skilanglauf Training Ausdauer Geschwindigkeit Belastung Laktat Leistung Messverfahren O2-Aufnahme |
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Notationen: | Biowissenschaften und Sportmedizin Ausdauersportarten |
Tagging: | Doppelstockschub Ruhezustand |
DOI: | 10.1123/ijspp.2019-0987 |
Veröffentlicht in: | International Journal of Sports Physiology and Performance |
Veröffentlicht: |
2021
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Jahrgang: | 16 |
Heft: | 5 |
Seiten: | 647-654 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |