Quantification of radial arterial pulse characteristics change during exercise and recovery

Fig. 1. Experimental flow diagram

Fig. 2. Illustration of the determination of waveform characteristics from the raw radial pulse waveform (a) and normalized radial pulse waveform (b). Four parameters were defined in the raw pulse waveform, including the pulse amplitude, pulse period, pulse peak time T p and dicrotic notch time T n. b Five parameters were defined in the normalized pulse waveform, including the pulse peak point, pulse dicrotic notch point, pulse Area, pulse Area1 and pulse Area2

Fig. 3. Physiological parameters (mean ± SD) at different exercise loads and during recovery from the 65 subjects studied. *P < 0.05 significantly different in comparison with the 0-W resting phase

Fig. 4. Raw radial pulse waveforms averaged from the 65 subjects studied. The arrows indicate the shift tendency of the peak points and notch points during exercise and recovery

Fig. 5. Raw radial pulse waveform parameters (mean ± SD) at different exercise loads and recovery phases from the 65 subjects studied. *P < 0.05 significantly different in comparison with the 0-W resting phase

Fig. 6. Normalized radial pulse waveforms averaged from 65 subjects studied. The arrows indicate the shift of the peak points and notch points during exercise and recovery

Fig. 7. Normalized radial pulse waveform parameter (mean ± SD) changes of the 65 subjects studied. *P < 0.05 significantly different in comparison with the 0-W resting phase