ALLERGY, RESPIRATORY
Obesity May Raise Kids' Allergy Risk
Air Quality Better in Northeast, Midwest
Combating Myths About Seasonal Allergies
ALTERNATIVE MEDICINE
Many Cancer Patients Turn to Complementary Medicine
Higher Vitamin D Intake Could Cut Cancer Risk
Meditation May Boost Short-Term Visual Memory
ANIMAL CARE
Rest Easy. When It Comes to Swine Flu, Your Pet Is Safe
'Comfort Dogs' Come to Emotional Rescue
Animals Respond to Acupuncture's Healing Touch
BONES & JOINTS
Almost Half of Adults Will Develop Knee Osteoarthritis by 85
Gene Therapy May Ease Rheumatoid Arthritis
Breast-feeding Might Shield Women From Rheumatoid Arthritis
CANCER
Smoking Exposure Now Linked to Colon, Breast Cancers
More Cancer Tests Mean More False-Positive Results
Smoking Ups Risk of Second Breast Cancer
CAREGIVING
Organ Donation Policies Vary Among Children's Hospitals
Flu Strikes a Milder Blow This Season
Study Links Pesticides to Birth Defects
CIRCULATORY SYSTEM
Firefighters Have Narrower-Than-Normal Arteries, Study Finds
Walk 100 Steps a Minute for 'Moderate' Exercise
Grapefruit-Heavy Diet Helped Spur Dangerous Clot
COSMETIC
Gum Chewing May Cut Craving for Snacks
Contact Lenses Boost Kids' Self-Image
With Psoriasis, the Internet May Offer Hope
DENTAL, ORAL
An Oral Approach to Heart Disease
Dental Implants Need More Work Than Root Canals
Good Oral Hygiene May Protect Against Heart Infections
DIABETES
Treatment for Type 2 Diabetes Updated
Insulin Resistance Tied to Peripheral Artery Disease
Whole Grains Take a Bite Out of Type 2 Diabetes Risk
DIET, NUTRITION
Vinegar Might Help Keep Off Pounds
Is Coffee Good or Bad for Your Health?
Brown Rice Tied to Better Heart Health in Study
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Topical Drugs May Pollute Waterways
Ozone-Depleting Inhalers Being Phased Out
Air Quality Better in Northeast, Midwest
EYE CARE, VISION
Brain Adapts to Age-Related Eye Disease
Diabetic Eye Disease Rates Soaring
Retinal Gene Is Linked to Childhood Blindness
FITNESS
Fliers Can Keep Blood Clots at Bay
Walking Golf Course Affects Swing, Performance
Any Exercise Good After a Heart Attack
GASTROINTESTINAL PROBLEMS
New Yogurt May Ease Stomach Ulcers
Traditional Nonsurgical GERD Treatments Not Impressive
HRT Use Raises Risk of Stomach Trouble
GENERAL HEALTH
U.S. Spends Billions On Alternative Medicine
Varicose Veins May Mask Larger Problem
Afternoon Nap Might Make You Smarter
HEAD & NECK
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
Zen May Thicken Brain, Thwart Pain
HEALTH & TECHNOLOGY
Imaging Sheds Light on How Acupuncture Works
Airport Full Body Scanners Pose No Health Threat: Experts
Save Your Aging Brain, Try Surfing The Web
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
Risk Factor for Stroke More Common Among Whites
A Little Alcohol May Help the Heart: Studies
Implanted Defibrillators Boost Long-Term Survival
INFECTIOUS DISEASE
Chinese 'Devil Dung' Plant Could Be a Swine Flu Fighter
Swine Flu Is Now a Pandemic Says W.H.O.
Grapefruit Compound Inhibits Hepatitis C Virus
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Scary Toxins Make Halloween Face Paints Questionable
Backpack Safety Should Be on Back-to-School Lists
Heart Defects in Newborns Linked to Antidepressants
MEN'S HEALTH
Vigorous Exercise Cuts Stroke Risk for Men, Not Women
Countdown to Hair Loss
Whole Grains, Bran May Fight Hypertension in Men
MENTAL HEALTH
Bullying Seems to Affect Kids Years Later
Breast-Fed Baby May Mean Better Behaved Child
Drink Away Dementia?
PAIN
Are We Exercising Pain Away? Not So Much.
Acupuncture, Real or Fake, Eases Back Pain
Alleviating Rheumatoid Arthritis
PHYSICAL THERAPY
PREGNANCY
Expectant Mom's Exercise Keeps Newborn's Birth Weight Down
Breast-Feeding Benefits Moms and Babies
Pre-Pregnancy Weight Linked to Babies' Heart Problems
SENIORS
Tai Chi and Qigong Offer Many Health Benefits: Review
Eating Well And Keeping Active As You Grow Old Will Help You Stay Sharp
Rapid Weight Loss in Seniors Signals Higher Dementia Risk
SEXUAL HEALTH
SLEEP DISORDERS
Sleeping Could Help Women Lose The Baby Fat
6 to 8 Hours of Shut-Eye Is Optimal for Health
Meditation May Help Put Primary Insomnia to Bed
WOMEN'S HEALTH
Soy May Not Lead to Denser Breasts
Pre-Pregnancy Weight Linked to Babies' Heart Problems
Rheumatoid Arthritis Rising Among U.S. Women
Add your Article

Weight Loss Might Not Curb Knee Arthritis

FRIDAY, March 13 (HealthDay News) -- Losing weight may not help prevent the progression of knee osteoarthritis, a new study suggests.

Researchers looked at more than 2,600 people with the knee ailment who were at high risk for the condition because they were overweight or obese or had other risk factors such as knee pain or previous knee injuries. Participants were given a physical examination and hip bone mineral test and had X-rays taken of both legs at the start of the study and of their knees again after 30 months.

The study found that obesity did increase the risk of knee osteoarthritis but that weight had no overall effect on the likelihood of the disease progressing, said D.T. Felson, of Boston University School of Medicine, and colleagues.

However, the researchers did find that weight had an effect on progression depending on how the knees were aligned. People with high body mass index and neutral alignment had an increased risk of progressive knee osteoarthritis, those with valgus (knock-kneed) alignment had a small risk and people with varus (bowlegged) alignment had no increased risk.

Among participants who did not have knee osteoarthritis, obesity increased the risk of developing the disease, regardless of their knee alignment.

"The failure to demonstrate that obesity increases the overall risk of [osteoarthritis] progression in our study and others does not eliminate opportunities for weight loss trials aimed at slowing disease progression, especially among knees in extremities with neutral or valgus alignment," the researchers wrote.

The study was published in the March issue of the journal Arthritis Care & Research.

More information

The American Academy of Family Physicians has more about knee osteoarthritis.



-- Robert Preidt



SOURCE: Wiley-Blackwell, news release, March 3, 2009

Last Updated: March 13, 2009

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