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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Co-existence of peripheral fatigue of the knee extensors and jump potentiation after an incremental running test to exhaustion in endurance trained male runnersAutor(es)
Fecha
2023-11-09Cita bibliográfica
Márquez, G., González-Hernandez, J., Jiménez-Reyes, P., Colomer-Poveda, D., & Boullosa, D. (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
Resumen
[Abstract]: 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 excitationcontraction 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.
Palabras clave
Vertical jump
Neuromuscular fatigue
Twitch interpolation technique
Post activation potentiation (PAP)
Incremental running test
Neuromuscular fatigue
Twitch interpolation technique
Post activation potentiation (PAP)
Incremental running test
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Derechos
Atribución 4.0 España
ISSN
2624-9367