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The Benefits of Exercise

Dr. J | American Board of Internal Medicine certified Nephrologist and Internal Medicine specialist with over 30 years of clinical experience

We all know the importance of staying active and exercising. It is advice we have heard many times as we navigate the twists and turns known as life. Often it is easier said than done especially for those with arthropathy and joint pains. However, we must fight the battle and remain as mobile and dynamic as possible. Because data shows that our quality of life, overall health, and even life expectancy itself are greatly impacted by our patterns of activity. 

We define physical activity as bodily movement produced by the contraction of skeletal muscle that increases energy expenditure above the basal (baseline) level. Any type of physical activity can be included (occupational, household, leisure time, and transportation) and it is often categorized by level of intensity. The term "exercise" refers to a form of physical activity that is planned, structured, repetitive, and purposeful with a main objective of improvement or maintenance of one or more components of physical fitness.


A
metabolic equivalents score (often called MET score) is often used by scientists to help quantify the energy expenditure of activities. A score of 1 represents the amount of energy used when a person is at rest. Using this as a baseline, scientists have given common activities MET scores. While MET scores have their limitations, they are useful starting points for discussing exercise . 


Activities with a MET score of 1-4 are in the low-intensity category. They would not improve the cardiovascular fitness of most people, though they could be a good starting point for some. Activities with a MET score of 5-8 are classified as moderate and would be appropriate for those who are older or sedentary. Activities with a MET score over 8 are high intensity and are best for improving fitness as long as they can be done safely.


Here are some other common workouts and their MET scores:

  • Walking on a firm, level surface at a very brisk pace: 5.0
  • Running at the rate of a 10-minute mile: 9.8
  • Low-impact aerobics: 5.0
  • Swimming laps: 5.8 


Everyday tasks also use energy and have their own MET scores, including:

  • Moving furniture: 5.8
  • Raking leaves: 3.8
  • Washing windows: 3.2
  • Walking the dog: 3.5 


There is strong and consistent data that cardiorespiratory fitness (CRF) and exercise can greatly effect clinical outcomes. In this meta analysis by Kodama S et al - data from MEDLINE (1966 to December 31, 2008) and EMBASE (1980 to December 31, 2008) databases were evaluated. Participants were characterized based on estimated cardiorespiratory fitness (CRF) utilizing metabolic equivalent (MET) units. Participants were categorized as low fitness (< 7.9 METs), intermediate fitness (7.9-10.8 METs), or high fitness (> or = 10.9 METs). There was strong association with higher cardiorespiratory fitness levels and lower risk of all-cause mortality and cardiac events. Participants at 7.9 METs or more had substantially lower rates of all-cause mortality and cardiovascular events compared with those with a less than 7.9 METs.


Some of the potential benefits of exercise / movement?

  • Help control weight by burning calories
  • Help maintain bone mineral density - so bones don't get thin and break easily
  • Help with stress relief
  • Can help improve/control depression and anxiety
  • Can help with blood pressure control
  • Can control blood sugar levels in people with diabetes
  • Can lower the chance of dying from heart disease


How often should One exercise?

Doctors recommend that people exercise at least 30 minutes a day, on 5 or more days of the week. If you can't exercise for 30 minutes straight, try to exercise for 10 minutes at a time, 3 or 4 times a day. Even exercising for shorter amounts of time is good for you, especially if it means spending less time sitting.


What are the main types of exercise?


There are 3 main types of exercise. They are:


Aerobic exercise – Aerobic exercise raises a person's heart rate. Examples of aerobic exercise are walking, running, dancing, riding a bike, or swimming.


Resistance training – Resistance training helps make your muscles stronger. People can do this type of exercise using weights, exercise bands, or weight machines. You can also do this type of exercise using your own body weight, as with push-ups, or by lifting items in your home, like jugs of water.


Stretching – Stretching exercises help your muscles and joints move more easily.

It's important to have all 3 types of exercise in your exercise program. That way, your body, muscles, and joints can be as healthy as possible.


What should I do when I exercise?


Each time you exercise, you should:


Warm up – Warming up can help protect and keep you from hurting your muscles when you exercise. To warm up, do a light aerobic exercise (such as walking slowly) or stretch for 5 to 10 minutes.


Work out – You should try to get a mix of aerobic exercise, resistance training, and stretching. During an aerobic workout, you can walk fast, swim, run, or use an exercise machine. Other activities, like dancing or playing tennis, are also forms of aerobic exercise. You should also take time to stretch all of your joints, including your neck, shoulders, back, hips, and knees. At least 2 times a week, you can do resistance training exercises as part of your workout.


Cool down – Cooling down helps keep you from feeling dizzy after you exercise and helps prevent muscle cramps. To cool down, you can stretch or do a light aerobic exercise for 5 minutes.


The beauty of exercise regimens is the variability and potential adaptability of individual plans. One can exercise at home by themselves or in group activities or gyms. People can walk, jog, bike, or stretch. They can do resistance training with or without weights. They can find activities they enjoy such as basketball, tennis, or swimming. So keep battling and keep working on a personalized exercise regimen to help keep you active, healthy, and happy and everyone!


By Dr. J | American Board of Internal Medicine certified Nephrologist and Internal Medicine specialist with over 30 years of clinical experience August 8, 2022
Osteoarthritis is commonly referred to as the “wear and tear” degenerative joint disease. It typically results from the gradual loss of cartilage - the tough connective tissue that is within/between joints. In a way too simple analogy of this complex mechanism - this cartilage serves as essentially a shock absorber preventing direct shear force or “bone on bone” pressure. Once the shock absorber is weakened/gone – trauma will slowly lead to inflammation and erosion of the joint (PAIN!). This leads to a pretty straightforward question - is there a way to repair or at the least slow down the decline of cartilage? Enter Glucosamine - which is an amino sugar and precursor in the synthesis of glycosylated lipids and proteins. It is a natural compound that exists in our cartilage. 
By Dr. J | American Board of Internal Medicine certified Nephrologist and Internal Medicine specialist with over 30 years of clinical experience January 31, 2022
Osteoarthritis is one of the most common medical conditions in the world and is commonly referred to as “wear and tear” degenerative joint disease. It typically results from the gradual loss of cartilage within/between joints. This cartilage serves as a type of shock absorber preventing direct shear force and “bone on bone” pressure. Once the shock-absorber is gone it will slowly lead to inflammation and erosion of the joint. US Centers for Disease Control data estimate approx 60 million people with doctor diagnosed arthritis – and remember many people live with joint aches/pain without seeing a physician or getting a formal diagnosis of OA. Sadly the symptoms of OA simply do not stop at the joint. The Arthritis Foundation notes that individuals with OA are almost three times more likely to develop cardiovascular disease (CVD) or heart failure than those without OA. Also, people with osteoarthritis experience as much as 30 percent more falls and have a 20 percent greater risk of fracture than those without OA. These links are especially strong when arthritis is in certain weight bearing/balance joints, such as the knee/back/hip. It makes sense – pain/weakness especially in our stabilizing joints such as knees/hips/spine will limit mobility and lead to risk factors such as weight gain, cardiovascular disease, diabetes coupled with stability issues. These patients would have difficulty following American Heart Association recommendation s that recommend increased physical activity and note that becoming more active can help lower blood pressure and also boost levels of good cholesterol. Without regular physical activity, the body slowly loses its strength, stamina and ability to function well - People who are physically active live about 7 years longer than those who are not active and are obese (American Heart Association). Studies have shown that adults who are inactive/minimally active more than 4 hours a day had a 46% increased risk of death from any cause and an 80% increased risk of death from cardiovascular disease! So now let us focus on some of the clinical presentations of Osteoarthritis (OA). In general there is a marked variability of disease expression. Although most patients present with joint pain and functional limitations, the age of disease onset, sequence of joint involvement, and disease progression vary from person to person. OA ranges from an asymptomatic, incidental finding on clinical or radiologic examination to a progressive disabling disorder eventually culminating in "joint failure" with impaired mobility and quality of life. The primary symptoms of osteoarthritis (OA) are joint pain, stiffness, and motor restriction. Symptoms usually present in just one or a few joints in a middle-aged or older person. Other manifestations in patients with OA include sequelae such as muscle weakness, poor balance, and associated conditions such as fibromyalgia (a disorder characterized by widespread musculoskeletal pain accompanied by fatigue, sleep, memory and mood issues).
By Dr. J | American Board of Internal Medicine certified Nephrologist and Internal Medicine specialist with over 30 years of clinical experience November 24, 2021
Osteoarthritis is oftentimes characterized in simple terms - typically referred to as a “wear and tear” injury to a specific joint. This usually involves the weight bearing joints of the body such as the lower back (lumbar spine), the hips, or the knees but can also include common repetitive use joints such as the fingers/toes and also the ankle (especially if historical trauma/injury is noted). In actuality - osteoarthritis is a complex system with many mediators that can affect degradation of joints/cartilage. There are multiple mechanisms that can help trigger erosive joint disease - including several metabolic triggers. In this excellent review by Wang/Hunter et a l from Osteoarthritis and Cartilage - they have an interesting info graphic highlighting potential metabolic contributors to OA (shared below).
By Dr. J | American Board of Internal Medicine certified Nephrologist and Internal Medicine specialist with over 30 years of clinical experience September 20, 2021
Falls are a major issue especially in our elderly population and falls are the leading cause of injury, both fatal and nonfatal, among older adults in the United States . I can not even count the number of lives that were significantly (and often times permanently) changed after a fall through my decades of practice as a Nephrologist and Internist.
By Dr. J | American Board of Internal Medicine certified Nephrologist and Internal Medicine specialist with over 30 years of clinical experience September 5, 2021
Cultures around the world, originally in eastern philosophy, have utilized mind body movement exercises for generations for various potential mental and physical benefits. These practices have increased in popularity and scope and are now truly global disciplines such as yoga and tai chi . Yoga likely was founded in Indi a and entails discipline in physical, mental, and spiritual realms with originally strong followings in the hindu and buddhist doctrines. It has morphed from being tied to a single country and also bypassed religious connotations. The term "yoga" in the Western world often denotes a modern form of hatha yoga and posture-based physical fitness, stress-relief, and relaxation techniques sometimes accompanied with breathing exercises The focus of yoga in this modern sense is to blend posture based positions/poses to help facilitate exercise for the body and potentially mind. There are many different disciplines/variations of Yoga with significant fluctuations in their physical demands. Many researchers/physicians attempt to quantify the strenuousness of exercises by their energy cost of exercise commonly measured in metabolic equivalent of task (MET). Less than 3 METs counts as light exercise; 3 to 6 METs is moderate; 6 or over is vigorous. American College of Sports Medicine and American Heart Association guidelines count periods of at least 10 minutes of moderate MET level activity towards their recommended daily amounts of exercise. For healthy adults aged 18 to 65, the guidelines recommend moderate exercise for 30 minutes five days a week, or vigorous aerobic exercis e for 20 minutes three days a week. Treated as a form of exercise, a complete yoga session with asanas (body posture) and pranayama (focusing on breath) discipline provides 3.3 ± 1.6 METs which would be classified as an average/moderate workout in strenuousness. There have been several hundred published articles/scientific trials on Yoga and its potential health benefits. Let us focus on some of the data for arthropathy. In one randomized control trial by Deepeshwar et al - Sixty-six individual diagnosed with with knee osteoarthritis (ages between 30 and 75 yo) were randomized into two groups. One group would then participate in yoga for 1 week at a yoga center ( n = 31) and then a control ( n = 35) group who did not participate in any yoga activities. Multiple functional tests were performed on day 1 and then at day 7 - including the Falls Efficacy Scale (FES), Handgrip Strength test (left hand LHGS and right hand RHGS), Timed Up and Go Test (TUG), Sit-to-Stand (STS), and right & left extension and flexion. Results indicated a significant reduction in TUG ( p < 0.001), Right ( p < 0.001), and Left Flexion ( p < 0.001) whereas significant improvements in LHGS ( p < 0.01), and right extension ( p < 0.05) & left extension ( p < 0.001) from baseline was found in the yoga group. This would suggest improved muscular strength, flexibility, and functional mobility in the yoga group. This was a small study that also was completed over a short time frame (1 week) but did show marked functional improvements. Let us look at more data via a large review by Haaz et a l . Researchers combed through peer-reviewed clinical trials (published from 1980-2010) that used yoga as an intervention for arthritis patients and reported quantitative findings. Eleven studies were identified, including four randomized control trials and four non randomized trials. The trials reviewed data is below in the table.
By Dr. J | American Board of Internal Medicine certified Nephrologist and Internal Medicine specialists with over 30 years of clinical experience August 22, 2021
Let us review an interesting study from the Harvard medical system published in the American Journal of Clinical Nutritio n and also Osteoarthritis and Cartilage Journal by Xu et all dealing with the potential impacts of dietary intake patterns and progression of Knee osteoarthritis. There is an age old saying - "You are what you eat" and there has been past data on certain foods/nutrients linked with outcome effects on knee arthritis such as (click the links below for reference articles): Soft drink consumption (potential increased risk of OA progression) Milk consumption (potential decreased risk of OA progression particularly in women) Dietary fat intake (potential increased risk of OA progression) Strawberrie s (potential decreased risk of OA progression particularly in obese adults) Fiber intake (potential decreased risk of OA progression) We also know of many herbs that have varying arthritis control data (some very convincing) and our own Organic Arthritis Herbal Supplement is composed of strong data driven herbs for arthropathy control. There have been past study links between a general Mediterranean diet having a relative lower risk of and improved overall symptom control of knee OA. This study focuses more on overall diet classes and effects on osteoarthritis. This study compares two diet classes based on the Scree test via individual diet questionnaires: Western Diet - composed of high intakes of red and/or processed meats, refined grains, and french fries Prudent Diet - composed of high intakes of vegetables, fruit, fish, whole grains, and legumes
By Dr. J | American Board of Internal Medicine certified Nephrologist and Internal Medicine specialists with over 30 years of clinical experience August 6, 2021
Arthritis is one of the most common medical conditions diagnosed in the United States and world-wide. CDC US data notes there are approximately 60 million individuals battling arthropathy with that estimate rapidly growing to an estimated 78 million (26%) US adults aged 18 years or older projected to have doctor-diagnosed arthritis by 2040 .
By Dr. J | American Board of Internal Medicine certified Nephrologist and Internal Medicine specialists with over 30 years of clinical experience July 12, 2021
Many of us have heard of the medical term INSOMNIA . It refers to a medical condition in which individuals have difficulty falling, staying, or getting back to sleep. There can be short term sleep issues lasting nights or weeks, termed acute insomnia , or long term sleep disturbances ranging months to years, termed chronic insomnia . This can lead to a multitude of general health ramifications. The first question - how much sleep is recommended daily? According to United States Centers for Disease control recommendations - adults should generally have 7 or more hours of sleep nightly to help ensure optimal functional status. This CDC table below helps show National Sleep Foundation and American Academy of Sleep Medicine recommendations:
Knee Arthritis - a review on exercise, weight loss, and physical therapy!
By Dr. J | a board certified Internist and Nephrologist practicing in the DC/Metropolitan area with over 30 years of clinical experience June 13, 2021
Knee Arthritis - a review on exercise, weight loss, and physical therapy!
By Dr. J | a board certified Internist and Nephrologist practicing in the DC/Metropolitan area with over 30 years of clinical experience June 11, 2021
There is a strong chance all of us are aware of or have used non-steroidal anti-inflammatory drugs (commonly referred to as NSAIDs) in our lifetimes. There also is a good chance many have been told by their medical providers to avoid using NSAIDs especially long term given the risk factors for particular those with chronic kidney disease, congestive heart failure, resistant hypertension, gastritis/stomach ulcers, or even those with electrolyte concerns such as hyperkalemia (high potassium) or hyponatremia (low sodium). Despite these risks – NSAIDs are simply the most recommended/prescribed anti-inflammatory medications in the world today. This class of medications includes such commonplace names as (click underlined links below for more info): 1) Advil 2) Aleve 3) Ibuprofen 4) Motrin 5) Naprosyn/Naproxen 6) Diclofenac/Voltaren 7) Celebrex/Celecoxib 8) Mobic (Meloxicam) 9) Indomethacin/Indocin Though often times effective for inflammatory control - there are several noted risks to NSAIDs particularly in those with chronic kidney disease. NSAIDs provide their analgesic, anti-inflammatory, and antipyretic actions through inhibition of cyclooxygenase (COX) enzymes – which convert arichidonic acid (released from cell membranes) to prostaglandins and thromboxanes. This graphic in the American Journal of Kidney Disease highlights this COX cascade pathway affects:
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