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It is four months since many people have made their health and fitness resolutions and hopefully some have stayed the course.  If you are looking for another reason to stick to your New Year’s Resolution to get fit and lose weight in 2024 try this…to improve or prevent hip and knee pain!

There are three major weight-bearing joints in the body, the hip, knee and ankle/foot. Consequently, wear and tear and arthritis are common among these joints. There are almost 800,000 knee replacements and 450,000 hip replacements annually in the United States alone. While there are many recommended methods to avoid or delay joint replacement, only a few are within our control. Genetics, trauma, degenerative diseases such as rheumatoid arthritis and osteoarthritis are difficult to control. However, body weight, aggressive weight bearing sports and overdoing exercises as you age like excessive running, jumping, lifting and squatting can be modified or eliminated to limit the progression of joint damage.  According to WebMD, “your knees are powerhouses. They’re the biggest, strongest, joints in your body, and most people use them throughout the day to sit, stand, walk, jump, and bend. They bear 80% of your body weight when you stand still and 150% or more when you walk across the room. In a 160-pound person, that’s 240 pounds of force!”

Body Weight and Hip & Knee Pain

According to the National Institutes of Health, body weight or body mass index (BMI) has a direct impact on hip and knee degeneration, pain and dysfunction. In fact, one study found that people with or at risk of significant hip/knee osteoarthritis had a 2-3% reduction in risk of hip or knee replacement for every 1% reduction in weight, regardless of the baseline BMI.

It is commonly known that the primary cause of osteoarthritis is normal wear and tear, especially for those over 50. However, extra body weight can accelerate this process. As the joint degenerates, the cartilage at the end and in between your joints gets compressed and dehydrated which leads to deterioration. Eventually, the bones rub directly on each other as the cushion wears away, leading to pain, swelling, and stiffness, loss of motion, strength and function.   

While it may seem obvious that extra weight will put more strain and stress on the hip and knee joints; another mechanism involved in this degenerative process. Excess body fat can increase chemicals in your blood stream that can cause inflammation in your joints.

How to Maintain a Healthy Body Weight

If you need a goal and a motive, how about this: losing even 10 pounds will equate to 40 pounds less force compressing and stressing your hips and knees. Moreover, reducing body fat will limit the hormones that cause inflammation in your joints. Talk to your primary care physician or visit www.cdc .gov to find a BMI calculator. Just plug in your height and weight and it calculates it for you. For example, a 155-pound male at 5 feet 8 inches tall has a BMI of 23.6. (A BMI of 18.5 to 24.9 is considered a healthy weight for this person).


The Mediterranean Diet is a solid start to eating healthy. It is less of a diet and more of a lifestyle. The foundation of this diet is plant foods built around vegetables, fruits, herbs, nuts, beans and whole grains. Moderate amounts of fish, dairy, poultry and eggs with limited consumption of red meat are paramount. The Mediterranean lifestyle also includes shared meals with family and friends, small portions, regular exercise, and wine in moderation with food and friends.


Exercise has many more benefits than just losing weight. Physical activity is one of the most important factors in improving a lifestyle in a positive way. A minimum of 30 minutes of physical activity, 5 days per week can greatly contribute to weight loss and longevity.  

Researchers have found that the benefits of regular physical activity are numerous. Some of the more important benefits are:

Some simple suggestions for beginning an exercise program are:

 Visit your doctor regularly and listen to your body.     

  Keep moving, eat healthy foods, exercise regularly, and live long and well

SOURCES: WebMD, National Institutes of Health; CDC, American Council on Exercise

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This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email:

Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy in Scranton and Clarks Summit. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at Geisinger Commonwealth School of Medicine. For all of Dr. Mackarey's articles, visit our exercise forum!