The aim of this study was to investigate the EMG thresholds in four lower limb muscles and to compare them with ventilatory threshold as an alternative for detecting aerobic-anaerobic transition intensity. 49 subjects (23.8+/-5.7 years, 182.7+/-5.3 cm, 79,1+/-8.6 kg) were investigated on cycle ergometer. Expired gas and EMG activity were recorded from vastus lateralis, vastus medialis, biceps femoris and gastrocnemius lateralis. Ventilatory threshold and EMG threshold from different muscle were not significantly different. When thresholds were analyzed among different groups of subjects no significant difference were observed between ventilatory threshold and EMG thresholds despite threshold differencies between the groups. All EMG thresholds were significantly related to maximal aerobic power (r=0.73-0.83) and were highly correlated to each other (r=0.57-0.88). It can be concluded that EMG activity from leg muscles provided an alternative when detecting subjects individual aerobic-anaerobic transition intensity.

Electromyographic threshold intensity in athletes with different physical activity patterns

CICCHELLA, ANTONIO;
2005

Abstract

The aim of this study was to investigate the EMG thresholds in four lower limb muscles and to compare them with ventilatory threshold as an alternative for detecting aerobic-anaerobic transition intensity. 49 subjects (23.8+/-5.7 years, 182.7+/-5.3 cm, 79,1+/-8.6 kg) were investigated on cycle ergometer. Expired gas and EMG activity were recorded from vastus lateralis, vastus medialis, biceps femoris and gastrocnemius lateralis. Ventilatory threshold and EMG threshold from different muscle were not significantly different. When thresholds were analyzed among different groups of subjects no significant difference were observed between ventilatory threshold and EMG thresholds despite threshold differencies between the groups. All EMG thresholds were significantly related to maximal aerobic power (r=0.73-0.83) and were highly correlated to each other (r=0.57-0.88). It can be concluded that EMG activity from leg muscles provided an alternative when detecting subjects individual aerobic-anaerobic transition intensity.
4th international conference in kinesiology: science and profession-challenge for the future
556
558
A. Cicchella; J. Maestu; P. Purge; S. Ruosi; J. Jurimae; T. Jurimae
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/4258
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 0
social impact