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Título
Co-existence of peripheral fatigue of the knee extensors and jump potentiation after an incremental running test to exhaustion in endurance trained male runners
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Facultad/Centro
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Título de la revista
Frontiers in Sports and Active Living
Cita Bibliográfica
Márquez, G.; González-Hernandez, J.; Jiménez-Reyes, P.; Colomer-Poveda, D.; Boullosa Álvarez, D. A. (2023). Co-existence of peripheral fatigue of the knee extensors and jump potentiation after an incremental running test to exhaustion in endurance trained male runners. Frontiers in Sports and Active Living, 5, https://doi.org/10.3389/FSPOR.2023.1267593
Editorial
Frontiers Media
Fecha
2023
Resumen
[EN] The aim of the present study was to investigate the effect of an incremental
running exercise until exhaustion on twitch responses and jump capacity in
endurance trained runners. For this purpose, 8 experienced endurance male
runners were required to perform neuromuscular function tests before and after
a submaximal running bout (control condition -CTR-) or an incremental running
test to volitional exhaustion (experimental conditions -EXP-). The twitch
interpolation technique was used to assess voluntary activation and muscle
contractile properties before and after each condition (CTR and EXP).
Countermovement jump was also used to assess the stretch-shortening cycle
function before and after both conditions. In addition, rating of perceived
exertion, heart rate, blood lactate and skin temperature were also recorded.
Only EXP improved jump performance, however, it was also accompanied by a
reduction in maximal voluntary contraction and the peak twitch force of the
knee extensors evoked by electrical stimulation at 10 Hz (Db10). It is likely that
reductions in maximal voluntary contraction may be related to an excitation-
contraction coupling failure (i.e. low-frequency fatigue) as suggest the reduction
in the Db10. The current results confirm that acute changes in jump
performance may not be appropriate to evaluate acute fatigue in endurance
trained runners
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