Heart damage is common among patients hospitalized with COVID-19, leading many to wonder how the virus affects the heart. Now, researchers have found that the spike protein from the severe acute respiratory syndrome coronavirus ...
Jul 25, 2022
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A recent study conducted by the National Heart Center Singapore (NHCS) discovered that myocardial fibrosis is associated with worse cardiovascular outcomes in patients with hypertension. Myocardial fibrosis is an important ...
Jul 21, 2022
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Wake Forest Institute for Regenerative Medicine (WFIRM) researchers are investigating a drug used to treat neuromuscular weakness as a potential treatment for botulism, a rare but serious disease.
Jul 25, 2022
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In a major new development in the quest to develop better gene therapies with which to treat a host of diseases, researchers at the University of Massachusetts Amherst and UMass Chan Medical School recently announced that ...
Jul 25, 2022
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People with loss of urinary control who used the Yoga of Immortals mobile app—a globally used app that combines specific yogic postures in the Sanatan tradition with breathing exercises, sound therapy and meditation—found ...
Jul 26, 2022
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Researchers have identified a gene that promotes muscle strength when switched on by physical activity, unlocking the potential for the development of therapeutic treatments to mimic some of the benefits of working out.
Jul 25, 2022
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Muscle strength is a powerful predictor of mortality that can quickly and inexpensively be assessed by measuring handgrip strength. In a new study, researchers developed cut-off points that apply to the general population, ...
Jul 25, 2022
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A novel long-term study of how vaccine-related fears influence flu shot outcomes has found that these fears not only reduce vaccination, but also fuel symptoms of dizziness and lightheadedness at the time of the injection.
Jul 21, 2022
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Exertional compartment syndrome is a medical condition that generally affects runners and people involved in jumping and impact sports. Symptoms may include pain, tightness, and weakness in the lower extremities. For some, ...
Jul 25, 2022
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Certain 1.2-ounce Natierra Organic Freeze-Dried Blueberry pouches have been recalled in the United States because of possible lead contamination.
Jul 21, 2022
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Muscle(from Latinmusculus, diminutive ofmus“鼠标”)是收缩组织e of the body and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They are classified as skeletal, cardiac, or smooth muscles. Their function is to produce force and cause motion. Muscles can cause either locomotion of the organism itself or movement of internal organs. Cardiac and smooth muscle contraction occurs without conscious thought and is necessary for survival. Examples are the contraction of the heart and peristalsis which pushes food through the digestive system. Voluntary contraction of the skeletal muscles is used to move the body and can be finely controlled. Examples are movements of the eye, or gross movements like the quadriceps muscle of the thigh. There are two broad types of voluntary muscle fibers: slow twitch and fast twitch. Slow twitch fibers contract for long periods of time but with little force while fast twitch fibers contract quickly and powerfully but fatigue very rapidly.
This text uses material fromWikipedia, licensed underCC BY-SA
