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respiratory sinus arrhythmia

   Also found in: Acronyms, Wikipedia 0.01 sec.
respiratory sinus arrhythmia (resˑ·p·tōˈ·rē sīˑ·ns ·rithˑ·mē·),
n the cyclical change in heart rate that occurs in correspondence with breathing rhythm; can be used as an indicator of health. The dampening or absence of RSA may indicate stress or heart damage.


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Respiratory sinus arrhythmia (RSA), a change in the heart rate that corresponds to the frequency of respiration.
The researchers were interested in seeing if there were physical differences in the way high-power people and low-power people responded to others' suffering; specifically they wanted to test if high-powered individuals would exhibit greater autonomic emotion regulation [or respiratory sinus arrhythmia (RSA) reactivity].
 
 
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