An accelerometer-derived ballistocardiogram method for detecting heart rate in free-ranging marine mammals
Abstract
Physio-logging methods, which use animal-borne devices to record physiological variables, are entering a new era driven by advances in sensor development. However, existing datasets collected with traditional bio-loggers, such as accelerometers, still contain untapped eco-physiological information. Here, we present a computational method for extracting heart rate from high-resolution accelerometer data using a ballistocardiogram. We validated our method with simultaneous accelerometer–electrocardiogram tag deployments in a controlled setting on a killer whale (Orcinus orca) and demonstrate the predictions correspond with previously observed cardiovascular patterns in a blue whale (Balaenoptera musculus), including the magnitude of apneic bradycardia and increase in heart rate prior to and during ascent. Our ballistocardiogram method may be applied to mine heart rates from previously collected accelerometery data and expand our understanding of comparative cardiovascular physiology.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 15, 2022
- Source ID
- 10.1242/jeb.243872
Entities
People
- James A. Fahlbusch
- Jeremy A. Goldbogen
- Max Czapanskiy
- Paul J. Ponganis
- Todd L. Schmitt
Organizations
- Office of Naval Research
- Stanford University
- University of California