Navigation Links
Daily vibration may help aging bones stay healthy
Date:10/25/2010

AUGUSTA, Ga. - A daily dose of whole body vibration may help reduce the usual bone density loss that occurs with age, Medical College of Georgia researchers report.

Twelve weeks of daily, 30-minute sessions in 18-month old male mice which equate to 55- to 65-year-old humans appear to forestall the expected annual loss that can result in fractures, disability and death. Dr. Karl H. Wenger, biomedical engineer in the MCG Schools of Graduate Studies and Medicine, reported the findings with his colleagues in the journal Bone.

Researchers found vibration improved density around the hip joint with a shift toward higher density in the femur, the long bone of the leg, as well. Hip fractures are a major cause of disability and death among the elderly.

They also found a reduction in a biomarker that indicates bone breakdown and an increase in the surface area involved in bone formation in the vibrating group.

The findings provide more scientific evidence that the technique, which dates back to the 1800s and is now showing up in homes, gyms and rehabilitation clinics, has bone benefit, particularly as a low-risk option for injured individuals with limited mobility, Wenger said.

The scientists theorize that the rhythmic movement, which produces a sensation similar to that of a vibrating cell phone but on a larger scale, exercises cells so they work better. Vibration prompts movement of the cell nucleus, which is suspended by numerous threadlike fibers called filaments. "The filaments get all deformed like springs and then they spring back," Wenger said.

All the movement releases transcription factors that spur new osteoblasts, the cells that make bone. With age, the balance of bone production and destruction by osteoclasts tips to the loss side.

In the case of an injury, vibration acts on stem cells, the master controllers of the healing process. "We think that in fracture healing, you get a more dramatic response. We don't know exactly why it affects the biology differently but it's likely because of the extent to which stem cells invade the injured area," Wenger said. They have found that vibration slows stem cell proliferation, which may sound counterintuitive, but likely means more stem cells differentiate into bone cells rather than continuing to just make more generic stem cells. With age, stem cells have difficulty differentiating.

To see if their findings translate to the trauma clinic, they are evaluating vibration tolerance in patients with lower-limb fractures and finding, surprisingly, that even two weeks after injury the subtle vibration is soothing, rather than painful, to most.

The bone group, based in the MCG Department of Orthopaedic Surgery, also is working with Georgia Prevention Institute scientists to explore vibration's potential to improve glucose uptake to see if vibration results in more insulin production or aids glucose clearance in some other way and whether, like exercise, it can reduce fatty liver disease in chunky, pre-diabetic children.

In related studies, postmenopausal women at the peak age of bone decline, experienced results similar to those of Wenger's aging mice. Wenger's studies used only male mice to mitigate the impact of fluctuating hormones and focus on aging. In the human study, led by Dr. Clinton T. Rubin at the State University of New York at Stony Brook, the women receiving daily whole body vibration didn't gain appreciable bone but they did not lose it either.

While vibration lacks the same cardiovascular benefit of exercise, animal and human studies also have shown it can improve muscle strength and weight loss.


'/>"/>

Contact: Toni Baker
tbaker@mcg.edu
706-721-4421
Medical College of Georgia
Source:Eurekalert  

Related biology news :

1. 2010 AAO-HNSF new research daily highlights: Sunday, Sept. 26, 2010
2. Stanford biologist Gretchen Daily to receive 2010 Heinz Award for environmental achievement
3. Biochemist proposes worldwide policy change to step up daily vitamin D intake
4. Telephone counseling increases daily servings of fruit, vegetables, U-M study says
5. Brown and beige dominate the plate: Daily dose of color needed to fill Americas phytonutrient gap
6. UH Manoa researcher examines possible implications of daily commute and mosquito-borne diseases
7. Daily bathroom showers may deliver face full of pathogens, says CU-Boulder study
8. Individual cells isolated from biological clock can keep daily time, but are unreliable
9. Daily consumption of cannabis predisposes to the appearance of psychosis and schizophrenia
10. Risk of vibration-induced vascular injuries linked to vibration frequency differences
11. Ticking of cellular clock promotes seismic changes in the chromatin landscape associated with aging
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Daily vibration may help aging bones stay healthy
(Date:6/9/2016)... leader in attendance control systems is proud to announce the introduction of fingerprint attendance ... the right employees are actually signing in, and to even control the opening of ... ... ... Photo - ...
(Date:6/2/2016)... , June 2, 2016 The ... has awarded the 44 million US Dollar project, for ... Embossed Vehicle Plates including Personalization, Enrolment, and IT Infrastructure ... leader in the production and implementation of Identity Management Solutions. ... January, however Decatur was selected for ...
(Date:5/24/2016)... facilitates superior patient care by providing unparalleled technology to leaders of the medical imaging ... product recently added to the range of products distributed by Ampronix. Photo ... ... ... News ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... -- A person commits a crime, and the detective uses ... criminal down. An outbreak of foodborne illness makes ... uses DNA evidence to track down the bacteria that caused ... not. The FDA has increasingly used a complex, cutting-edge technology ... Put as simply as possible, whole genome sequencing is a ...
(Date:6/23/2016)...  The Prostate Cancer Foundation (PCF) is pleased to announce 24 ... for prostate cancer. Members of the Class of 2016 were selected from a ... Read More About the Class of 2016 PCF Young Investigators ... ... ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... today announced the launch of the Supplyframe Design Lab . Located in ... to explore the future of how hardware projects are designed, built and brought ...
(Date:6/23/2016)... 2016 Apellis Pharmaceuticals, Inc. today announced ... of its complement C3 inhibitor, APL-2. The trials ... dose studies designed to assess the safety, tolerability, ... in healthy adult volunteers. Forty subjects ... single dose (ranging from 45 to 1,440mg) or ...
Breaking Biology Technology: