Medical research

Malnutrition links kidney disease, weaker muscles

End-stage kidney disease patients undergoing maintenance hemodialysis (MHD) often struggle with malnutrition and sarcopenia, a form of musculoskeletal atrophy that amplifies mortality. Untangling the long-suspected relationship ...

Gerontology & Geriatrics

How older people can prevent falls

Falls are common. Each year one in every three people aged over 65 will fall. Around one in ten falls lead to serious injury. Most of us have a friend or relative who has experienced an injury from a fall and know what a ...

Alzheimer's disease & dementia

Delaying dementia: VR games may be the next big thing

While virtual reality may once have seemed like something out of "Back to the Future," the technology is now here to stay. A new report by CNET claims the gaming platform may even be older adults' next super weapon in the ...

Sports medicine & Kinesiology

Do compression garments facilitate muscle recovery after exercise?

Compression garments are an elastic cloth fitting that people wear on their arms, legs, or hips during or after physical exercise. Their use has gained popularity over the last few decades because they are thought to enhance ...

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Muscle

Muscle (from Latin musculus, diminutive of mus "mouse") is the contractile tissue 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.

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