health

Older Adults Still Need Regular Exercise

Ask the Doctors by by Eve Glazier, M.D. and Elizabeth Ko, M.D
by Eve Glazier, M.D. and Elizabeth Ko, M.D
Ask the Doctors | March 23rd, 2020

Dear Doctor: Our dad is 78 years old, and he has started spending a lot more time indoors and on his recliner. He’s in good health, but he says he’s getting too old for exercise to matter. What can we say to persuade him to become active again?

Dear Reader: Exercise is an important part of ongoing health and fitness, and, despite your dad’s feelings to the contrary, we never age out of our need for it.

In fact, studies show that becoming or remaining active as an older adult offers a wide array of benefits. On the physical side, regular exercise can improve cardiovascular health; help to lower blood pressure; lessen the risk of chronic diseases such as Type 2 diabetes, colon cancer and heart disease; help with balance, strength and flexibility; maintain healthy weight; improve strength and stamina; maintain joint health; help with swelling and pain due to arthritis; and lower the risk of falls. Regular exercise has mental health benefits as well. Older adults who incorporate even moderate amounts of exercise into their daily lives report enhancement to mood and outlook, improved cognitive function and a reduction in symptoms of anxiety and depression. Remaining physically active also has been shown to help older adults maintain their ability to live independently.

For a well-rounded exercise program, think in terms of a mix of activities to improve endurance, increase strength and maintain flexibility. And be creative. Walking, jogging, swimming and biking all fit the bill for moderate aerobic activities for endurance, but so do dancing, raking the lawn or playing badminton. We lose muscle mass as we age, so strength and resistance exercises, such as weightlifting or Pilates, are important. Activities like stretching, tai chi and yoga help keep joints loose and muscles limber. Current guidelines recommend that people 65 and older should do 2.5 hours of moderate aerobic exercise each week, which averages out to a manageable 20-ish minutes per day.

Although sharing this information with your dad is a good start, leading by example is even better. It’s not just older adults who fall short of the recommended levels of exercise and physical activity; up to half of all adults miss the mark. If you and your siblings live nearby, it could be helpful to your dad -- and to yourselves -- to choose an activity to do together once or twice a week and get up and moving.

A final thought: If your dad has supplementary Medicare coverage, check to see if it includes SilverSneakers. It’s a health-and-fitness program designed for older adults that will give him access to a range of fitness options, including gyms, community centers and other fitness locations. And remember, your dad should check in with his doctor or other health care provider before making any significant changes to his exercise regimen or activity. They will be able to evaluate his condition and fitness level and point him in the direction of appropriate activities. Not only will it help your dad to stay safe, he’ll have another partner and cheerleader in his corner.

(Send your questions to askthedoctors@mednet.ucla.edu, or write: Ask the Doctors, c/o UCLA Health Sciences Media Relations, 10880 Wilshire Blvd., Suite 1450, Los Angeles, CA, 90024. Owing to the volume of mail, personal replies cannot be provided.)

AgingFitnessPhysical Health
health

Don’t Resist Resistant Starches

Ask the Doctors by by Eve Glazier, M.D. and Elizabeth Ko, M.D
by Eve Glazier, M.D. and Elizabeth Ko, M.D
Ask the Doctors | March 20th, 2020

Dear Doctor: I keep reading about something called “resistant starch.” People are saying I should get it into my diet. Why is it so important? How much do I need?

Dear Reader: As with so many areas of diet and medicine these days, the answer leads directly to the gut microbiome. That’s the vast and complex community of bacteria, fungi, yeasts and viruses that live in our intestines. They number in the trillions, can account for 2 to 5 pounds of our weight and, as we’re learning every day, play complex and crucial roles in our physical and even mental health. In fact, because these microscopic creatures are necessary to survival, the gut microbiome is increasingly regarded as an organ in its own right.

One of the keys to a healthy and diverse gut microbiome is keeping our microscopic residents well-fed. This involves prebiotics, a type of dietary fiber that stimulates the growth and activity of the good-guy bacteria in the gut. For fellow science nerds, prebiotic foods contain high levels of a starchy substance known as inulin and certain types of sugars, including fructo-oligosaccharides and galacto-oligosaccharides. Although apples, oats, lentils, leeks, Jerusalem artichokes, garlic, asparagus and bananas are cited as good sources of prebiotics, the fact is that a wide range of fruits, vegetables, grains and legumes contain prebiotics in varying amounts.

Another potential source of prebiotics is the subject of your question -- resistant starch. As the name suggests, these are starches, or carbohydrates, that resist digestion. That means they survive the journey through the digestive tract and make it all the way to the colon, where they become available to gut microbes. Resistant starches fall into four general categories. They may be protected by fibrous cell walls, as with grains, seeds and legumes. They are available in certain raw foods, such as raw potatoes or raw plantains. And they can be manufactured via a chemical process. What’s of particular interest is the final category. This is a range of carbohydrates that, when cooked and then cooled, develop into resistant starch. These include rice, potatoes, yams, pasta and whole grains such as oats and barley.

One benefit is that, instead of being broken down into glucose and raising blood sugar levels, these types of carbohydrates pass into the colon. This improves glycemic control, an important factor in good health. Once in the colon, resistant starches feed the beneficial bacteria that live there. Through the process of fermentation, bacteria turn resistant starch into compounds known as short-chain fatty acids. These include butyrate, which is linked to lower rates of colorectal cancers, and propionate, which has been shown to lower inflammation and improve immune support.

How much resistant starch do we need? There’s no set amount. Instead, think in terms of daily goals for dietary fiber in general. Most Americans get less than half the recommended 25 grams per day for women and 38 grams per day for men. We recommend eating from a diverse range of fresh fruit, vegetables, whole grains, legumes and nuts. If they’re new to your diet, add them slowly to avoid gas and bloating. And with every bite, know you’re making your gut microbiome very happy.

(Send your questions to askthedoctors@mednet.ucla.edu, or write: Ask the Doctors, c/o UCLA Health Sciences Media Relations, 10880 Wilshire Blvd., Suite 1450, Los Angeles, CA, 90024. Owing to the volume of mail, personal replies cannot be provided.)

Nutrition
health

Lower Back Pain Could be Helped With Alexander Technique

Ask the Doctors by by Eve Glazier, M.D. and Elizabeth Ko, M.D
by Eve Glazier, M.D. and Elizabeth Ko, M.D
Ask the Doctors | March 18th, 2020

Dear Doctor: I've had lower back pain for years, and nothing has helped. I’ve tried physical therapy, yoga and chiropractors, and I’ve even contemplated surgery. My sister suggests something called the Alexander technique. What do you think? I'm willing to try anything, but I don't want to chase after treatments that aren’t useful.

Dear Reader: When our ancient ancestors stood up and became bipeds, they gave humans a crucial evolutionary advantage. They also left us with another lasting legacy -- back pain. It’s a near-universal complaint, and it ranks among the largest contributors to disability throughout the world. Yet, because the spine is a complex structure, the specific causes of back pain often remain elusive. This can make finding an effective treatment both difficult and frustrating.

The majority of back pain affects the lower back, which supports much of the weight of the upper body. The most common causes of pain in the region are the mechanics of how we stand and move, injuries to the tissues and structures of the back and spine and, often, a combination of the two. Poor posture, poor alignment and the ergonomics of the tools and objects in our daily lives all play a role. Put too much stress or torque on the spine, and you’re at risk of injuries to the muscles, ligaments, tendons and nerves in the region.

A back injury can make itself known suddenly, as with a muscle spasm or a slipped disc, or may emerge over time. Either way, the pain and disruption can be daunting. Yoga, physical therapy and chiropractic care can indeed lessen lower back pain, and we’re sorry to hear that none of these approaches brought you relief. Massage, acupuncture and mindfulness exercises also can help. Some of our patients living with lower back pain have had success using topical heat, as well as over-the-counter creams, gels and patches.

All of which brings us -- at last! -- to your sister’s suggestion, the Alexander technique. It’s a series of posture lessons that focus on alignment, balance, breathing, coordination, spatial awareness and the release of tension, particularly in the neck, shoulders, spine, back and hips. Developed in the 1890s by Frederick Matthias Alexander, the technique has been used for chronic back pain, arthritis and Parkinson’s disease. In this method, students relearn how to sit, stand, walk, bend, reach and move, all with an awareness of gravity’s downward pull. A single session may focus solely on the proper alignment for rising from a chair, or it may be spent lying on the ground methodically assessing and releasing areas of tension.

Classes typically are one-on-one, carried out by a certified teacher who observes the student and guides them with both verbal explanations and gentle, hands-on adjustments. Several studies have confirmed the benefits of the Alexander technique for back pain, including one published in the journal BMJ. In that study, researchers found that one-on-one lessons with a certified teacher had long-term benefits for patients with chronic back pain. We recommend the Alexander technique to our own patients who are dealing with back pain. If lessons are available in your area, we think this approach to dealing with lower back pain is worth exploring.

(Send your questions to askthedoctors@mednet.ucla.edu, or write: Ask the Doctors, c/o UCLA Health Sciences Media Relations, 10880 Wilshire Blvd., Suite 1450, Los Angeles, CA, 90024. Owing to the volume of mail, personal replies cannot be provided.)

Physical Health

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