what is the gender of my baby based on heart rate

However, heart rates from 50 to 60 bpm are common among healthy people and do not necessarily require special attention. Bradycardia is defined as a resting heart rate below 60 bpm. Normal resting heart rates range from 60 to 100 bpm. ĭue to individuals having a constant blood volume, one of the physiological ways to deliver more oxygen to an organ is to increase heart rate to permit blood to pass by the organ more often. Therefore, stimulation of the accelerans nerve increases heart rate, while stimulation of the vagus nerve decreases it.

The accelerans nerve provides sympathetic input to the heart by releasing norepinephrine onto the cells of the sinoatrial node (SA node), and the vagus nerve provides parasympathetic input to the heart by releasing acetylcholine onto sinoatrial node cells. While heart rhythm is regulated entirely by the sinoatrial node under normal conditions, heart rate is regulated by sympathetic and parasympathetic input to the sinoatrial node. Problems playing this file? See media help. The S1 heart sound is intensified due to the increased cardiac output. Heart sounds of a 16 year old girl immediately after running, with a heart rate of 186 BPM. 3.7 Correlation with cardiovascular mortality risk.1.2.7 Physiological control over heart rate.1.1.2 Input to the cardiovascular centres.1.1 Influences from the central nervous system.Abnormalities of heart rate sometimes indicate disease. When the heart is not beating in a regular pattern, this is referred to as an arrhythmia. During sleep a slow heartbeat with rates around 40–50 bpm is common and is considered normal. Bradycardia is a low heart rate, defined as below 60 bpm at rest. Tachycardia is a high heart rate, defined as above 100 bpm at rest. The American Heart Association states the normal resting adult human heart rate is 60–100 bpm. It is usually equal or close to the pulse measured at any peripheral point. The heart rate can vary according to the body's physical needs, including the need to absorb oxygen and excrete carbon dioxide, but is also modulated by a myriad of factors including but not limited to genetics, physical fitness, stress or psychological status, diet, drugs, hormonal status, environment, and disease/illness as well as the interaction between and among these factors. Heart rate is the speed of the heartbeat measured by the number of contractions (beats) of the heart per minute (bpm).

Speed of the heartbeat, measured in beats per minute

What is the gender of my baby based on heart rate