Twelve trained young males (age, 24+/-5 years) performed an incremental tes
t to exhaustion during which capillary blood and saliva samples were obtain
ed to determine the blood lactate (LT) and salivary amylase (T-sa) threshol
ds, The root mean-square voltage of electromyographic activity (rms-EMG) of
the vastus lateralis muscle was also recorded to detect the electromyograp
hic threshold (EMG(T)). No significant difference was found between the exe
rcise:intensity corresponding to the LT, T-sa or EMG(T).