Exercise tolerance reflects the ability to sustain physical activity and is influenced by cardiovascular, pulmonary, and ...

The endoplasmic reticulum (ER) regulates protein folding and maintains proteostasis in cells- a process essential to maintaining cellular health. However, researchers at UAB have found that chronic ...

With upright exercise there is a slower rise in heart rate in the elderly compared to the younger subject. Stroke volume is maintained in the elderly person by an increase in end-diastolic volume ...

The next time you train, remember: You’re not just building endurance. You’re upgrading your heart's software. You're ...

NEW ORLEANS, LA—Rate-adaptive atrial pacing to increase heart rate during exercise is not a useful strategy in patients who have heart failure with preserved ejection fraction (HFpEF) and chronotropic ...

Your heart is one of the most important organs of the body. It pumps oxygenated blood to the body, helps in nutrient delivery in the body, sends oxygen-poor blood to the lungs, receives oxygen-rich ...

Background Survival from out-of-hospital cardiac arrest (OHCA) is higher if the arrest is witnessed and occurs during exercise, however, there is contradicting data on prognosis with regards to sex ...

Decreased cardiac output is when your heart can no longer pump enough oxygen to meet the demands of your body. A rapid heart rate is a common symptom, but there are others, too. Your heart is ...

Living with transthyretin cardiac amyloidosis (ATTR-CM) can make everyday movement difficult. When you have this rare heart condition, blood protein deposits form amyloid fibrils that cause the heart ...