Navigation Links
Older adults may need more vitamin D to prevent mobility difficulties

WINSTON-SALEM, N.C. May 29, 2012 Older adults who don't get enough vitamin D either from diet, supplements or sun exposure may be at increased risk of developing mobility limitations and disability, according to new research from Wake Forest Baptist Medical Center.

"This is one of the first studies to look at the association of vitamin D and the onset of new mobility limitations or disability in older adults," said lead author Denise Houston, Ph.D., R.D., a nutrition epidemiologist in the Wake Forest Baptist Department of Geriatrics and Gerontology. Houston researches vitamin D and its effects on physical function.

The study, published online this month in the Journal of Gerontology: Medical Sciences, analyzed the association between vitamin D and onset of mobility limitation and disability over six years of follow-up using data from the National Institute on Aging's Health, Aging, and Body Composition (Health ABC) study. Mobility limitation and disability are defined as any difficulty or inability to walk several blocks or climb a flight of stairs, respectively.

Of the 3,075 community-dwelling black and white men and women aged 70-79 who were enrolled, data from 2,099 participants was used for this study. Eligible participants reported no difficulty walking one-fourth mile, climbing 10 steps, or performing basic, daily living activities, and were free of life-threatening illness. Vitamin D levels were measured in the blood at the beginning of the study. Occurrence of mobility limitation and disability during follow-up was assessed during annual clinic visits alternating with telephone interviews every six months over six years.

"We observed about a 30 percent increased risk of mobility limitations for those older adults who had low levels of vitamin D, and almost a two-fold higher risk of mobility disability," Houston said.

Houston said vitamin D plays an important role in muscle function, so it is plausible that low levels of the vitamin could result in the onset of decreased lower muscle strength and physical performance. Vitamin D may also indirectly affect physical function as low vitamin D levels have also been associated with diabetes, high blood pressure, cardiovascular disease and lung disease conditions that are frequent causes of decline in physical function. Houston said people get vitamin D when it is naturally produced in the skin by sun exposure, by eating foods with vitamin D, such as fortified milk, juice and cereals, and by taking vitamin D supplements.

"About one-third of older adults have low vitamin D levels," she said. "It's difficult to get enough vitamin D through diet alone and older adults, who may not spend much time outdoors, may need to take a vitamin D supplement."

Current recommendations call for people over age 70 to get 800 International Units of vitamin D daily in their diet or supplements. Houston pointed out that current dietary recommendations are based solely on vitamin D's effects on bone health.

"Higher amounts of vitamin D may be needed for the preservation of muscle strength and physical function as well as other health conditions," she said. "However, clinical trials are needed to determine whether increasing vitamin D levels through diet or supplements has an effect on physical function."


Contact: Bonnie Davis
Wake Forest Baptist Medical Center

Related medicine news :

1. Autism Often Not Diagnosed Until Age 5 or Older: U.S. Report
2. Well-connected brains make you smarter in older age
3. Melanoma a Big Threat to Older Men
4. Reported increase in older adult fall deaths due to improved coding
5. Older People With Dementia Cared for Mostly at Home
6. National poll: Low cost, lifesaving services missing from most older patients health care
7. Researchers determine vitamin D blood level for reducing major medical risks in older adults
8. Taking Away Car Keys Can Be Tough for Older Drivers
9. Bridging the gap in treatment for older women with breast cancer
10. Women With Older Partners More Often Admitted to Nursing Homes
11. Avastin No Benefit to Older Lung Cancer Patients: Study
Post Your Comments:
(Date:11/25/2015)... Neb. (PRWEB) , ... November 25, 2015 , ... ... staffing companies, has been recognized once again for its stellar workplace culture with ... to Work.” , Medical Solutions’ Cincinnati office was named a finalist ...
(Date:11/25/2015)... (PRWEB) , ... November 25, 2015 , ... For the ... companies’ “ Two Organizations, One Beat ” campaign. The partnership between the two groups ... to aid in MAP International’s cause. , MAP International was founded in 1954 and ...
(Date:11/25/2015)... (PRWEB) , ... November 25, 2015 , ... ... for physicians and athletic programs, launches new Wimbledon Athletics Facebook page ... testing young athletes for unsuspected cardiac abnormalities. About 2,000 people under the age ...
(Date:11/25/2015)... Calif. (PRWEB) , ... November 25, 2015 , ... Beddit® ... and Beddit Classic sleep tracking systems. The new app features a more intuitive SleepScore™ ... and understand how well you slept. The SleepScore is created by a proprietary algorithm. ...
(Date:11/25/2015)... ST. LOUIS, Missouri (PRWEB) , ... November 25, ... ... with Project HEAL, will provide scholarships for people struggling with eating disorders as ... Proceeds from the second annual event, held at Fox Run Golf Club ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... DUBLIN , November 26, 2015 /PRNewswire/ ... the addition of the "2016 Future ... Drugs of Abuse Testing Market: Supplier Shares, ... report to their offering. --> ... of the "2016 Future Horizons and ...
(Date:11/26/2015)... November 26, 2015 ... addition of the  "2016 Future Horizons ... Therapeutic Drug Monitoring (TDM) Market: Supplier ... Emerging Opportunities"  report to their offering.  ... announced the addition of the  "2016 ...
(Date:11/26/2015)... , Nov. 26, 2015 Research ... addition of the "2016 Future Horizons and ... (TDM) Market: Supplier Shares, Country Segment Forecasts, Competitive ... --> --> ... analysis of the Italian therapeutic drug monitoring market, ...
Breaking Medicine Technology: