Study explains why muscles weaken with age and points to possible therapy


Study explains why muscles weaken with age and points to possible therapy

(NEW YORK, NY, (August 2, 2011) – Researchers at Columbia University Medical Center have discovered the biological mechanism behind age-related loss of muscle strength and identified a drug that may help reverse this process. Their findings were published in the August 2 online edition of Cell Metabolism .

As we grow older, our skeletal muscles tend to wither and weaken, a phenomenon known as sarcopenia. Sarcopenia, which begins to appear at around age 40 and accelerates after 75, is a major cause of disability in the elderly. Exercise can help counter the effects of age-related muscle loss. Otherwise, there are no established treatments.

According to the new study, conducted in mice, sarcopenia occurs when calcium leaks from a group of proteins in muscle cells called the ryanodine receptor channel complex. These leaks then trigger a chain of events that ultimately limits the ability of muscle fibers to contract, reports study leader Andrew R. Marks, M.D., chairman and professor of physiology and cellular biophysics, the Clyde and Helen Wu Professor of Medicine, and director of the Wu Center for Molecular Cardiology at Columbia University Medical Center (CUMC).

Ryanodine receptors, which are calcium channels found in most body tissues, have been the focus of Dr. Marks' research since 1989. After cloning the ryanodine receptor gene, he later discovered, in studies of mice, that leaky ryanodine receptors are involved in the development of heart failure and arrhythmias. In 2009, he showed that leaks in these channels also contribute to Duchenne muscular dystrophy, a genetic disorder characterized by rapidly progressing muscle weakness and early death.

Since muscular dystrophy and sarcopenia have some commonalities, Dr. Marks suspected that ryanodine receptor leakage may also be involved in age-related muscle loss, which the present study shows is the case.

"This is a completely new concept — that the damage that occurs in aging is very similar to what happens in muscular dystrophy," says Dr. Marks, "thus as we age we essentially develop an acquired form of muscular dystrophy."

Both the aging process and the genetic defect responsible for muscular dystrophy cause an increase in the production of oxygen free radicals, highly reactive and harmful molecules. "Our data suggest that this sets up a vicious cycle, in which the free radicals cause ryanodine receptors to leak calcium into the cell. The calcium poisons mitochondria — organelles that power the cell — leading to the release of even more free radicals. This, in turn, causes more calcium leakage. With less calcium available for contraction, the muscles get weaker," says first author Daniel C. Andersson, M.D., Ph.D., a postdoctoral fellow in physiology and cellular biophysics at CUMC.

Muscle Release Therapy - News


Study explains why muscles weaken with age and points to possible therapy

A similar drug is now in phase II clinical trials for the treatment of heart failure. "Most investigators in the field of aging have been saying that the way to improve muscle strength is to build muscle mass, using such therapies as testosterone,



Structural Integration therapy can be used to correct years of misalignment

It is not about one muscle, he says. Postural correction and better function of the whole system is achieved by looking at relationships rather than symptoms. The dysfunction of one is a dysfunction of all the muscles. Proper activation of all together



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dy-police.com » Blog Archive » Living a wholesome pain free life

There are a number of methods offered in the planet which will support you take much better care of your health. One of your most widespread and oldest procedures is traditional chinese medicine which can be staying used everywhere in the entire world. China was the first country who released this strategy of traditional chinese medicine. Chinese medicine can be also known as oriental treatments, while the scientific name of traditional chinese medicine is paradigm. Chinese medicine is extremely useful for taking out the blockage of energy inside the body. By making use of the technique of Acupuncture in Toronto , thin needles are inserted in specific points with the entire body for helping the health with the affected person. If we discuss a history of Chinese medicine then we’ll come to learn that this method was implemented much more than two thousands years ago. Chinese medicine is being used in both NHS and private settings.

Commonly Chinese medicine in Toronto is being used to the relief of discomfort and for marketing the health growth of cells. Chinese medicine is quite useful to the treatment of dental troubles, lower back discomfort and nausea. According on the acupuncturists it normalizes the flow of vital energy which can be referred to as Chi. Different varieties of thoughts are observed within the treatment of various folks. Needles which are being used for traditional chinese medicine are solid, metallic and hair-thin in size. These needles vary in width, shape of head and length. An acupuncturist always inserts the needles by following various angles, by doing this he can easily insert the needles within the selection of 15-90 degree relative for that surface of skin. During the insertion of needles some folks really feel minimum discomfort, while generally it’s not a painful process. Sometimes folks really feel the discomfort within the treatment while defective needles or inappropriate location of needles could also generate the discomfort. So you should always choose a qualified traditional chinese medicine specialist for your treatment. Popular chemicals like endorphins are also being used for minimizing the suffering within the treatment. Active release therapy can be being used nowadays for that treatment of muscular troubles. Commonly Active release therapy is useful for your bodybuilders.

When we discuss the active release therapy technique we’ll come to understand that this strategy is nothing by itself. There are actually three main steps needed to the treatment by making use of the active release therapy. Toronto Active Release Therapy can be really typical in China and many other nations of the planet. First step to the lively release therapy is massage Chiropractor, start massage on your muscle and then within the second step try giving a moment on the contaminated muscle which can be painful to the affected person but this step is extremely essential to the correct location with the muscle. From the third and last step the traditional chinese medicine practitioner applies the electrical current to remove the feeling of discomfort from the brain. Commonly it requires 4 sessions to the correct treatment with the injury as well as the affected person can start his or her work within the regular program after taking these 4 sessions. Active release therapy is additional typical now because of its 90% accurate outcomes and thus is being employed all over the world.


Muscle Release Therapy - Bookshelf

Basic clinical massage therapy, integrating anatomy and treatment

Basic clinical massage therapy, integrating anatomy and treatment

A trigger point is said to release when its nodule is felt to soften and it ceases referring pain. A muscle is said to release when it relaxes while a ...

Management of common musculoskeletal disorders, physical therapy principles and methods

Management of common musculoskeletal disorders, physical therapy principles and methods

8-52),414415-421 muscle energy manipulative techniques,151 30S and strain- counterstrain (positional release) therapy are useful.96 2IU22" Such techniques ...

Travell & Simons' Myofascial Pain and Dysfunction: Upper half of body

Travell & Simons' Myofascial Pain and Dysfunction: Upper half of body

Myofascial Release Myofascial release is a system of therapy that combines principles and practice from soft tissue technique, muscle energy technique, ...

Integrative manual therapy for the upper and lower extremities

Integrative manual therapy for the upper and lower extremities

This book includes a description of treatment for the peripheral joints to improve joint mobility, articular balance and vertical dimensions of the intra ...

Positional release therapy, assessment & treatment of musculoskeletal dysfunction

Positional release therapy, assessment & treatment of musculoskeletal dysfunction


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