Doctor insights on:
What Happens When A Persons Cardiorespiratory Endurance Increases
What generally could happen to a relatively healthy person who exceeds their maximum heart rate during semi-strenuous exercising?
What happens to cardiac output and after load when when heart rate is low? does it increase because high heart rate causes decrease in CO
Probably nothing: An increase in your heart rate is a normal physiological response to stress or exercise ("fight or flight" reflex), and isn't necessarily indicative of any particular abnormality. An increase in heart rate is one way that your body increases your cardiac output. Fast heart rates associated with abnormal rhythms may produce symptoms and may be a sign of a heart problem. ...Read more
What characterizes arrhythmia during exercise?im a young elite athlete, heart rate seems to rise much quicker than usual.shortness of breath.
Exercise and heart: There are several types of heart conditions which might cause exercise-induced arrhythmias. We cardiologists take these seriously because of the concern of complications including fainting or even sudden death. An athlete with a change in exercise tolerance, shortness of breath or chest discomfort exercising, palpitations or fainting should be evaluated by a cardiologist. ...Read more
Complex question: The increase body mass, increase o2 consumption and increase co2 production will produce an increase minute ventilation to maintain normocapnia. Obese patients will increase mv by rapid shallow breaths. Increase heart rate is multifactorial but one explanation will be that any increase in cardiac output by severily obese person will be achieve mainly by increasing heart rate. ...Read more
Can being a prior endurance athlete (but not currently trained) permanently affect cardiac output resulting in high numbers when all else is normal?
Athletic Heart: Interesting question! former athletes have been shown to have more left ventricular hypertrophy or thickened hearts that usually lessens with age and deconditioning. A thick heart can lead to poor heart filling by increased stiffness. A condition called diastolic dysfunction. This can lead to a type of congestive heart failure if it persists. Controlling hr and BP via meds can help. ...Read more
What happens if heart bit rate increases/decreases does performance level increases/decreases as well?
Bit rate?: I'm not familiar with the term "heart bit rate". If you mean "heart rate" - there are many factors related to performance. The heart rate will increase with increasing workload and when it reaches its physiological maximum, oxygen debt begins and performance quickly declines. ...Read more
Can a person with a fast heart beat of (90bpm) do cardio exercise and weight training? Does it make it worse the situation?
Risk: The heart is at risk of potentially severe problems, like arrythmias (for different causes: electrolytes imbalances, anatomic changes, etc) always depending on the degree/stage of the disease, personal medical/family history and genetic factors. In short, anorexia nervosa is no good for the heart. ...Read moreSee 1 more doctor answer
What happens if a man has a cardiac reserve of 400% and maximum cardiac output is 20 l/min, what is his resting cardiac output?
Great question: Sounds about normal for average individuals, but low for highly trained athletes. Resting cardiac output generally around 5 liters/min and 400% is 4 x the resting output. Not sure how you tested this, but it sounds about right for an average, healthy individual. If you are a highly trained athlete, or if you have symptoms of fatigue or shortness of breath, you may want to speak to a physician. ...Read more
Should not: A patient with respiratory failure is often on a ventilator with a breathing tube in place. Sedation and pain medications are given to help the patient stay comfortable. Sometimes if a dying patient is not on a ventilator, pain medications and sedatives are given even though they may depress breathing more. This may be appropriate as part of palliative care. No one should suffer intensely. ...Read more
Mgt: It increases to meet demandGet a more detailed answer ›
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