A New Approach to Noninvasive-Prolonged Fatigue Identification Based on Surface EMG Time-Frequency and Wavelet Features

Table 1

Prolonged fatigue sign identification.

Tools	Prolonged fatigue signs	Identification
Training log	Performance decrement	Endurance time previous workout better
	Restlessness	HR > 100 before running
	Hypertension	BP > 140/90 before running
24-hour training distress questionnaire [28]	Sleeping disturbance	The different time duration between before and during intensive training
	Psychological disturbance	Psychological score >14
	Muscle soreness	Soreness scale (scale 4: tender but not sore to scale, 7: very sore)
Interview	Unexplained lethargy	Feel lethargy before running
Borg Scale CR10 [34]	The difficulty level of exercise increases	Increasing of the scale