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Keywords: electrocardiogram
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Journal Articles
J Exp Biol (2023) 226 (23): jeb246271.
Published: 28 November 2023
... from the peak power) to check the distribution as the stimuli for experiment III. In this experiment, we measured the electrocardiogram (ECG) as a physiological parameter to examine the internal states of the subject bats in real time via autonomic nervous system functions. Five adult bats (2...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2022) 225 (15): jeb244307.
Published: 10 August 2022
... with high-voltage shocks but is immune to its own, as well as external, high-voltage shocks. Neither a detailed analysis of the electrocardiogram nor the structure of the heart indicated a specialized cardiac conduction system. Using a suitable perfusion system, we discovered that, despite its immunity...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (10): jeb243872.
Published: 20 May 2022
... 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...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2020) 223 (12): jeb225227.
Published: 25 June 2020
... exposed to acute warming while electrocardiograms were recorded. From 12°C to 25.3°C, electrical excitation between different parts of the heart was coordinated, but above 25.3°C, atrial and ventricular beating rates became partly dissociated because of 2:1 atrioventricular (AV) block. With further...
Journal Articles
J Exp Biol (2018) 221 (4): jeb174508.
Published: 22 February 2018
...Amanda D. V. MacCannell; Ethan C. Jackson; Katherine E. Mathers; James F. Staples ABSTRACT We used electrocardiogram (ECG) telemeters to measure the heart rate of hibernating Ictidomys tridecemlineatus (thirteen-lined ground squirrel). An increase in heart rate from 2.2 to 5 beats min –1 accurately...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (10): 1495–1504.
Published: 15 May 2016
... temperature changes, thermal sensitivity of cardiac excitation in a eurythermal teleost, the roach ( Rutilus rutilus ), was examined. Excitability of the heart was determined from in vivo electrocardiograms and in vitro microelectrode recordings of action potentials (APs) from winter and summer roach...
Journal Articles
J Exp Biol (2014) 217 (9): 1525–1534.
Published: 1 May 2014
... seals) regulate heart rate ( f H ) while diving. We investigated dive f H in five adult female California sea lions ( Zalophus californianus ) during foraging trips by instrumenting them with digital electrocardiogram (ECG) loggers and time depth recorders. In all dives, dive f H (number of beats...
Journal Articles
J Exp Biol (2014) 217 (2): 299–309.
Published: 15 January 2014
...Matti Vornanen; Jaakko Haverinen; Stuart Egginton The upper thermal tolerance and mechanisms of heat-induced cardiac failure in the brown trout ( Salmo trutta fario ) was examined. The point above which ion channel function and sinoatrial contractility in vitro , and electrocardiogram (ECG) in vivo...
Includes: Supplementary data
Journal Articles
J Exp Biol (2004) 207 (11): 1969–1976.
Published: 1 May 2004
...H. A. Campbell; E. W. Taylor; S. Egginton SUMMARY Anaesthesia and minor surgery to place electrocardiogram recording electrodes in the short-horned sculpin caused a decrease in mean normal beat(R–R) interval and heart rate variability (HRV), measured as the standard deviation in the R–R interval...
Journal Articles
J Exp Biol (2002) 205 (13): 1843–1851.
Published: 1 July 2002
... from the apex towards the base (near where the cog-wheel valve muscle is located) at a velocity of 91±23 cm s -1 (mean ± S.E.M., N =3). The cog-wheel valve electrocardiogram (ECG) (and thus contraction of the valve) trailed the right ventricular ECG by 248±28 ms ( N =3), which was equivalent to 6-35...
Journal Articles
Journal Articles