Electrocardiography 2 Seismocardiography Accelerometers 1 Accurate estimation 1 Amplitude modulation 1 Article 1 Atmospheric pressure 1 Baseline wandering 1 Biomedical monitoring 1 COSMED K5 1 Cardiovascular monitoring 1 Controlled environment 1 Cost benefit analysis 1 Cost estimating 1 Energy expenditure 1 Environmental sensor 1 Exercise 1 Frequency modulation 1 Gyrocardiography 1 Humans 1 Machine learning models 1 Mechanical process 1 Metabolic systems 1 Monitoring 1 Oxygen 1 Oxygen Consumption 1 Oxygen uptake 1 Patient monitoring 1 Recording 1 Respiration 1