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J Appl Physiol 20: 464-468, 1965;
8750-7587/65 $5.00
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Heart rate response to held lung volume

Alfonso Angelone 1 and Norman A. Coulter JR. 1

1 Department of Physiology, The Ohio State University, Columbus, Ohio

It has been shown that respiratory sinus arrhythmia correlates fundamentally with lung volume changes. The correlation with thoracic circumference changes is incidental and quantitatively unreliable. Extensive measurements on one subject and limited measurements on four other subjects demonstrate the existence of a systematic relationship between heart rate and lung volume under reasonably static conditions, a high heart rate corresponding to the expiratory position and a low heart rate to the inspiratory position. This relation has been described successfully with an exponential equation.

heart rate and lung volume: exponential relation; heart rate: lung volume dependence; lung volume and thoracic circumference: calibration; respiration and heart rate: static lung volume effect; respiratory sinus arrhythmia: held lung volume and heart rate; sinus arrhythmia: static lung volume dependence; thoracic circumference and lung volume: calibration

Submitted on July 22, 1964




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