Signs and Symptoms
The decreased heart rate can cause a decreased cardiac output resulting in symptoms such as lightheadedness, dizziness, hypotension, vertigo, and syncope. The slow heart rate may also lead to atrial, junctional, or ventricular ectopic rhythms.
Bradycardia is not necessarily problematic. People who regularly practice sports may have sinus bradycardia, because their trained hearts can pump enough blood in each contraction to allow a low resting heart rate.
Sinus Bradycardia can aid in the sport of Freediving, which includes any of various aquatic activities that share the practice of breath-hold underwater diving. Bradycardia aids in this process due to drop in blood rate pulse. These adaptations enable the human body to endure depth and lack of oxygen far beyond what would be possible without the mammalian diving reflex.
Sinus bradycardia is a sinus rhythm of less than 60 bpm. It is a common condition found in both healthy individuals and those who are considered well conditioned athletes.
Read more about this topic: Sinus Bradycardia
Famous quotes containing the words signs and/or symptoms:
“Among all the modernized aspects of the most luxurious of industries, the model, a vestige of voluptuous barbarianism, is like some plunder-laden prey. She is the object of unbridled regard, a living bait, the passive realization of an ideal.... No other female occupation contains such potent impulses to moral disintegration as this one, applying as it does the outward signs of riches to a poor and beautiful girl.”
—Colette [Sidonie Gabrielle Colette] (1873–1954)
“A certain kind of rich man afflicted with the symptoms of moral dandyism sooner or later comes to the conclusion that it isn’t enough merely to make money. He feels obliged to hold views, to espouse causes and elect Presidents, to explain to a trembling world how and why the world went wrong. The spectacle is nearly always comic.”
—Lewis H. Lapham (b. 1935)