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

Table 2

Intensity of training based on percentage of the maximal heart rate.

Intensity zone %HRmax	Day_1	Day_2	Day_3	Day_4	Day_5
Very hard 90–100	10	8	8	11	10
Hard 80–89	8	9	7	5	4
Moderate 70–79	—	1	3	2	1
Light < 69	2	2	2	2	2
Mean ± SD	86 ± 13	86 ± 12	84 ± 14	85 ± 15	87 ± 14