CLOSE
Tags Posts tagged with "treadmill"

treadmill

by -
0 132
5 to 10 minutes of daily running, regardless of the pace, can have a significant impact on life span by decreasing cardiovascular and all-cause mortality. METRO photo
Modest lifestyle changes can add quality years

By David Dunaief, M.D.

Dr. David Dunaief

This past Monday, Canada honored the life of Queen Elizabeth II. Among other tributes, there was a 96-shot salute, with one shot for each year of her life. As you might imagine, it took a while.

While living to 96 was once unusual, it’s becoming more common. According to the National Institutes of Health, those in the U.S. who were more than 90 years old increased by 2.5 times over a 30-year period from 1980 to 2010 (1). This group is among what researchers refer to as the “oldest-old,” which includes those aged 85 and older.

What do these people have in common? According to one study, they tend to have fewer chronic morbidities or diseases. Thus, they tend to have a better quality of life with greater physical functioning and mental acuity (2).

In a study of centenarians, genetics played a significant role. Characteristics of this group were that they tended to be healthy and then die rapidly, without prolonged suffering (3). In other words, they grew old “gracefully,” staying mobile and mentally alert.

Factors that predict one’s ability to reach this exclusive club may involve both genetics and lifestyle choices. Let’s look at the research.

Get at least modest exercise

We are told repeatedly to exercise. Here’s one reason. Results of one study showed that 5 to 10 minutes of daily running, regardless of the pace, can have a significant impact on life span by decreasing cardiovascular and all-cause mortality (4).

Amazingly, even if participants ran fewer than six miles per week at a pace slower than 10-minute miles, and even if they ran only one to two days a week, there was still a decrease in mortality compared to nonrunners. Those who ran for this very short amount of time potentially added three years to their life span. There were 55,137 participants ranging in age from 18 to 100 years old.

An accompanying editorial to this study noted that more than 50 percent of people in the United States do not meet the current recommendation of at least 30 minutes of moderate exercise per day (5).

A study presented this past August at the European Society of Cardiology Congress looked at the role of simple physical activity in the elderly (6). It found that those 85 and older reduced the risk of all-cause mortality 40 percent by walking just 60 minutes a week. This is physical activity that does not actually qualify as exercise.

Eat less animal protein

A long-standing paradigm has been that we need to eat sufficient animal protein. However, cracks have developed in this theory, especially as it relates to longevity.

In an observational study using NHANES III data, results show that those who ate a high-protein diet (greater than 20 percent of calories from protein) had a twofold increased risk of all-cause mortality, a four-times increased risk of cancer mortality, and a four-times increased risk of dying from diabetes (7). This was over a considerable duration of 18 years and involved almost 7,000 participants ranging in age at the start of the study from 50 to 65.

However, this did not hold true if the protein source was plants. In fact, a high-protein plant diet may reduce the risks, not increase them. The reason, according to the authors, is that animal protein may increase insulin growth factor-1 and growth hormones that have detrimental effects on the body.

The Adventists Health Study 2 trial reinforced this data. It looked at Seventh-day Adventists, a group that emphasizes a plant-based diet, and found that those who ate animal protein once a week or less had a significantly reduced risk of dying over the next six years compared to those who were more frequent meat eaters (8). This was an observational trial with over 73,000 participants and a median age of 57 years old.

Reduce systemic inflammation

In the Whitehall II study, a specific marker for inflammation was measured, interleukin-6. The study showed that higher levels did not bode well for participants’ longevity (9). In fact, if participants had elevated IL-6 (>2.0 ng/L) at both baseline and at the end of the 10-year follow-up period, their probability of healthy aging decreased by almost half.

The good news is that inflammation can be improved significantly with lifestyle changes.

The takeaway from this study is that IL-6 is a relatively common biomarker for inflammation. It can be measured with a simple blood test offered by most major laboratories. This study involved 3,044 participants over the age of 35 who did not have a stroke, heart attack or cancer at the beginning of the study.

The bottom line is that, although genetics are important for longevity, so too are lifestyle choices. A small amount of exercise and replacing animal protein with plant protein can contribute to a substantial increase in healthy life span. IL-6 may be a useful marker for inflammation, which could help predict healthy or unhealthy outcomes. Therefore, why not have a discussion with your doctor about testing to see if you have an elevated IL-6? Lifestyle modifications may be able to reduce these levels.

References: 

(1) nia.nih.gov. (2) J Am Geriatr Soc. 2009;57:432-440. (3) Future of Genomic Medicine (FoGM) VII. Presented March 7, 2014. (4) J Am Coll Cardiol. 2014;64:472-481. (5) J Am Coll Cardiol. 2014;64:482-484. (6) European Society of Cardiology Congress, Aug. 28, 2022. (7) Cell Metab. 2014;19:407-417. (8) JAMA Intern Med. 2013;173:1230-1238. (9) CMAJ. 2013;185:E763-E770.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com.

by -
0 711
Pixabay photo
Simple changes can help you improve lung function

By David Dunaief, M.D.

Dr. David Dunaief

As we are learning to live alongside COVID-19, we also have a heightened awareness of the importance of strong lung function. For those with chronic obstructive lung diseases such as chronic obstructive pulmonary disease (COPD) and asthma, as well as those who smoke and vape, the consequences of COVID-19 are especially severe.

The good news is that we can improve lung function with simple lifestyle modifications including exercising, eating a plant-based diet with a focus on fruits and vegetables, expanding lung capacity with an incentive spirometer, and quitting smoking and vaping, which damage the lungs (1). Not only people with compromised lungs will benefit from these techniques, studies suggest everyone will benefit.

Improving asthma

In a randomized controlled trial of asthma patients, results show that after 14 days those who ate a high-antioxidant diet had greater lung function than those who ate a low-antioxidant diet (2). Additionally, those who were in the low-antioxidant diet group also had higher inflammation at 14 weeks. Inflammation was measured using a c-reactive protein (CRP) biomarker. Those who were in the low-antioxidant group also were over two-times more likely to have an asthma exacerbation. 

The good news is that the difference in behavior between the high- and low-antioxidant groups was small. The high-antioxidant group had a modest five servings of vegetables and two servings of fruit daily, while the low-antioxidant group ate no more than two servings of vegetables and one serving of fruit daily. Carotenoid supplementation, instead of antioxidant foods, made no difference in inflammation. The authors concluded that an increase in carotenoids from diet has a clinically significant impact on asthma and can be seen in a very short period. 

Focusing on COPD

Several studies demonstrate that higher consumption of fiber from plants decreases the risk of COPD in smokers and ex-smokers. Bear with me, because the studies were done with men or women, not both at the same time.

In one study of men, for example, results showed that higher fiber intake was associated with significant 48 percent reductions in COPD incidence in smokers and 38 percent incidence reductions in ex-smokers (3). The high-fiber group ate at least 36.8 grams per day, compared to the low-fiber group, which ate less than 23.7 grams per day. Fiber sources were fruits, vegetables and whole grain, essentially a whole foods plant-based diet. The high-fiber group was still below the American Dietetic Association-recommended 38 grams per day. This is within our grasp. 

In another study, women had a highly significant 37 percent decreased risk of COPD among those who consumed at least 2.5 serving of fruit per day compared to those who consumed less than 0.8 servings per day (4).

The highlighted fruits shown to reduce COPD in both men and women included apples, bananas, and pears.

Using incentive spirometry

An incentive spirometer is a device that helps expand the lungs by inhaling through a tube and causing a ball or multiple balls to rise in a tube. This action opens the alveoli and may help you breathe better. 

Incentive spirometry has been used for patients with pneumonia, those who have chest or abdominal surgery and those with asthma or COPD, but it has also been useful for healthy participants (5). A small study showed that those who trained with an incentive spirometer for two weeks increased their vital capacity, right and left chest wall motion, and right diaphragm motion. This means it improved lung function and respiratory motion. Participants were 10 non-smoking healthy adults who were instructed to take five sets of five deep breaths twice a day, totaling 50 deep breaths per day. The brands used in the study are inexpensive and easily accessible, such as Teleflex’s Triflo II.

In another small, two-month study of 27 patients with COPD, the incentive spirometer improved blood gases, such as partial pressure carbon dioxide and oxygen, in COPD patients with exacerbation (6). The authors concluded that it may improve quality of life for COPD patients.  

Increasing exercise

Exercise can have a direct impact on lung function. In a study involving healthy women ages 65 years and older, results showed that 20 minutes of high-intensity exercise three times a day improved FEV1 and FVC, both indicators of lung function, in as little as 12 weeks (7). Participants began with a 15-minute warm-up, then 20 minutes of high-intensity exercise on a treadmill, followed by 15 minutes of cool-down with stretching.

What is impressive is that it was done in older adults, not those in their twenties and not in elite athletes.

Note that you don’t need a treadmill to do aerobic exercise. You can walk up steps or steep hills in your neighborhood, do jumping jacks, or even dance in your living room. Whatever you choose, you want to increase your heart rate and expand your lungs. If this is new for you, consult a physician and start slowly. You’ll find that your stamina improves rather quickly with consistency.

We all should be working to strengthen our lungs. This three-pronged approach of lifestyle modifications – diet, exercise and incentive spirometer – can help without expending significant time or expense.

References: 

(1) Public Health Rep. 2011 Mar-Apr; 126(2): 158-159. (2) Am J Clin Nutr. 2012 Sep;96(3):534-43. (3) Epidemiology Mar 2018;29(2):254-260. (4) Int J Epidemiol Dec 1 2018;47(6);1897-1909. (5) Ann Rehabil Med. Jun 2015;39(3):360-365. (6) Respirology. Jun 2005;10(3):349-53. (7) J Phys Ther Sci. Aug 2017;29(8):1454-1457. 

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com.

by -
0 854
Stock photo

By Daniel Dunaief

Daniel Dunaief

I have been working out at a gym, where my routine consists mostly of pushing my body as long as I can on a treadmill, bike or elliptical machine until my sweat has soaked through my T-shirt. I play mind games while I’m running, telling myself that I can take a break once I get to 3 miles, or maybe 4 or closer to 5.

Each time I hit a milestone, I think about how much better I’ll feel if I can go just a bit farther, even as I’m taking an inventory of all the barking body parts, which typically includes my knees and back.

What helps get me over the hump lately, though, is the music I listen to as I work out.

I started with a collection of ’80s songs, hoping, perhaps, that the combination of familiar tunes from my youth would make my body remember the energy that defined this younger period.

As I was running, the songs reminded me of the times I danced with friends at Ward Melville High School, played Uno in a friend’s living room or decorated a Christmas tree with another friend who patiently showed a group of us how to thread popcorn and cranberries through a line.

As I was running, a montage of these images played through my head, making me feel as if my legs were turning back the clock. Fortunately, no one at my gym looks closely at me or my facial expressions, so I could indulge in musical — and life — nostalgia without interruption or without questions from people wondering what I was thinking as I reacted to people who have long since gone their separate ways.

For a few days, I switched to my favorite singer, Billy Joel. Hearing the words from “Only The Good Die Young,” “Piano Man,” and “Movin’ Out,” brought me back to the study breaks I took in high school when I stared out the window between my house and the neighbor’s colorful Santa sleigh down the street, hoping that the snow forecast for that evening was sufficient to close school the next day.

I’m planning to see Billy Joel in concert before too long, so I switched to another genre, playing the soundtrack from the original 1975 version of the musical, “A Chorus Line.” While others rarely cite it as one of their favorite musicals, I know it was the song “Nothing,” in which Diana Morales receives nonstop criticism from her teacher Mr. Karp, that brought to life the magic of Broadway for me. 

I always measured every other performance, including of musicals like “West Side Story” that I supported by playing clarinet in the pit orchestra, against the desperate hopes of each of the cast members in a chorus line to “make it” into the show.

Eventually, I needed a pulsating beat, so I shifted to exercise music, which, of course, included songs from “Rocky the Musical,” as well as other inspirational films. Each time the beat got faster, I found another pocket of energy that helped me conquer the next mile, using the beat as a metronome for my legs.

Music, in all its forms, serves many functions, allowing us to connect with the artist, to travel on an acoustic journey, to remember friends, and to exercise feelings and emotions even as we exercise the rest of our bodies.

I coached many sports when my children were younger. If I could do it over again, I would have added contemporary music to mundane practices to spice up the experience in real time and to inspire me on the nostalgia treadmill.

by -
0 1286
Regular exercise helps prevent or manage a wide range of health problems and concerns. Stock photo
The real benefits of exercise

By David Dunaief, M.D.

Dr. David Dunaief

With holiday dinners right around the corner, what would be a better topic than exercise? To quell our guilt about Thanksgiving dinner indiscretions, many of us will resolve to exercise to burn off the calories from this seismic meal and the smaller, calorically dense aftershock meals, whether with a vigorous family football game or with a more modest walk.

Unfortunately, exercise without dietary changes may not actually help many people lose weight, no matter what the intensity or the duration (1). If it does help, it may only modestly reduce fat mass and weight for the majority of people. However, it may be helpful with weight maintenance. Therefore, it may be more important to think about what you are eating than to succumb to the rationalization that you can eat with abandon during the holidays and work it off later.

Don’t give up on exercise just yet, though. There is very good news: Exercise does have beneficial effects on a wide range of conditions, including chronic kidney disease, cognitive decline, diabetes, cardiovascular disease, osteoporosis, fatigue, insomnia and depression.

Let’s look at the evidence.

Weight loss attenuated

The well-known weight-loss paradigm in medicine is that when more calories are burned than consumed, we will tip the scale in favor of weight loss. The greater the negative balance with exercise, the greater the loss. However, the results of a study say otherwise. They show that in premenopausal women there was neither weight nor fat loss from exercise (2). This involved 81 women over a short duration, 12 weeks. All of the women were overweight to obese, although there was great variability in weight.

However, more than two-thirds of the women (55) gained a mean of 1 kilogram, or 2.2 pounds, of fat mass by the end of the study. There were a few who gained 10 pounds of predominantly fat. Significant variability was seen among the participants, ranging from significant weight loss to substantial weight gain. These women were told to exercise at the American College of Sports Medicine’s optimal level of intensity (3). This is to walk 30 minutes on a treadmill three times a week at 70 percent VO2max — maximum oxygen consumption during exercise — or, in other words, a moderately intense pace. 

The good news is that the women were in better aerobic shape by the end of the study and that women who had lost weight at the four-week mark were more likely to continue to do so by the end of the study. This was a preliminary study, so no definitive conclusions can be made.

Other studies have shown modest weight loss. For instance, in a meta-analysis involving 14 randomized controlled trials — the gold standard of studies — results showed that there was a disappointing amount of weight loss with exercise alone (4). In six months, patients lost a mean of 1.6 kilograms, or 3.5 pounds, and at 12 months, participants lost 1.7 kilograms, or about 3.75 pounds.

Weight maintenance

However, exercise may be valuable in weight maintenance, according to observational studies. Premenopausal women who exercised at least 30 minutes a day were significantly less likely to regain lost weight (5). When exercise was added to diet, women were able to maintain 30 percent more weight loss than with diet alone after a year in a prospective study (6).

Chronic kidney disease

As just one example of exercise’s impact on disease, let’s look at chronic kidney disease (CKD), which affects 14 percent of adults in the United States, according to the Centers for Disease Control and Prevention (7). The U.S. Preventive Services Task Force has indicated that there is insufficient evidence to treat asymptomatic CKD. In fact, the American College of Physicians has said that asymptomatic CKD, which includes stages 3a and 3b, or moderate disease levels, should not be screened for, since the treatment risks outweigh the benefits, and lead to false positive results and unnecessary treatments (8).

However, in a trial, results showed that walking regularly could reduce the risk of kidney replacement therapy and death in patients who have moderate to severe CKD, stages 3-5 (9). Yes, this includes stage 3, which most likely is asymptomatic. There was a 21 percent reduction in the risk of kidney replacement therapy and a 33 percent reduction in the risk of death when walkers were compared to nonwalkers.

Walking had an impressive impact; results were based on a dose-response curve. In other words, the more frequently patients walked in the week, the better the probability of preventing complications. Those who walked between one and two times per week had 17 and 19 percent reductions in death and kidney replacement therapy, respectively, while those who walked at least seven times per week saw 44 and 59 percent reductions in death and kidney replacement. These are substantial results. The authors concluded that the effectiveness of walking on CKD was independent of kidney function, age or other diseases.

Therefore, while it is important to enjoy the holidays, it is food choices, not exercise, that will have the greatest impact on our weight and body composition. However, exercise is extremely beneficial for preventing progression of chronic disorders, such as CKD.

So, by all means, exercise during the holidays, but also focus on more nutrient-dense foods. At a minimum, strike a balance rather than eating purely calorically dense foods. You won’t be able to exercise them away.

References:

(1) uptodate.com. (2) J Strength Cond Res. Online Oct. 28, 2014. (3) ACSM.org. (4) Am J Med. 2011;124(8):747. (5) Obesity (Silver Spring). 2010;18(1):167. (6) Int J Obes Relat Metab Disord. 1997;21(10):941. (7) cdc.gov. (8) Ann Intern Med. online October 21, 2013. (9) Clin J Am Soc Nephrol. 2014 Jul;9(7):1183-1189.

Dr. Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

TBR News Media is your local news and entertainment website.
We provide you with the latest breaking news and information for your community.
Contact us: [email protected]

Most Viewed

©