Analysis of ECG-trunk muscle signal amplitude and heart rate relationship

Abstract

The objective of this paper is to investigate if bioelectrical signals, generated from trunk muscles identified in an electrocardiogram (ECG) signal presented in this paper as ECG-Trunk Muscles Signals amplitude (Ecg-TMSA) are correlated with Heart rate (HR) during different levels of physical activity and also if Ecg-TMSA is not influenced by mental activity. HR and Ecg-TMSA were derived from ECG in 14 subjects when walking and jogging at different treadmill velocities from 4–10 (km h⁻¹). The mean relationship for all 14 subjects was HR = (42.3 ± 0.2) + (45.3 ± 2.8) Ecg-TMSA, r²= 0.91. The result of one individual data points example for a 21 min experiment was (r²= 0.93, p < 0.0001, n = 336). The obtained results show a linear relationship between Ecg-TMSA and HR. Moreover, the Ecg-TMSA was not affected by mental activity.

• ECG noise
• heart rate
• mental activity
• physical activity
• trunk muscles bio-signals

Acknowledgements

The authors would like to gratefully thank the Averroes program Committee to have accorded a grant to carry out this work within the biomedical engineering laboratory of Linköping University, to the University of Linköping, Sweden, to have offered this possibility, and also to Tlemcen, Algeria, to have initiated such programmes.