Exercise May Lessen Risk of Falling for Older Adults who have Alzheimer’s Disease and Mental Health Challenges

Journal of the American Geriatrics Society Research Summary

Alzheimer’s disease (AD) is a brain disease that causes changes that kill brain cells. AD is a type of dementia, which causes memory loss and problems with thinking and making decisions. People with AD and other forms of dementia have difficulties performing the daily activities others might consider routine.

Dementia takes a toll on those who live with it—and it also places a burden on caregivers. Along with problems connected to memory, language, and decision-making, dementia can cause neuropsychiatric symptoms, such as depression, anxiety, changes in mood, increased irritability, and changes in personality and behavior.  People who have AD/dementia also have twice the risk for falls compared to people without dementia. About 60 percent of older adults with dementia fall each year.

Researchers suggest that having neuropsychiatric symptoms might predict whether an older person with AD/dementia is more likely to have a fall. We also know that exercise can reduce the number of falls in older adults with dementia. However, we don’t know very much about how neuropsychiatric symptoms may increase the risk of falls, and we know even less about how exercise may reduce the risk of falls for people with dementia and neuropsychiatric symptoms. A research team decided to explore whether exercise could reduce the risk of falling among community-dwelling people with AD who also had neuropsychiatric symptoms. Continue reading

Physical Activity Lowers Risk of Death from Heart Disease

Journal of the American Geriatrics Society Research Summary

Frailty is a health condition that increases risks of poor health, falls, disability, and death in older adults. Signs of frailty include weakness, weight loss, slow walking speed, exhaustion, and low levels of activity. As our population ages, scientists expect that more and more of us will need to address frailty and its associated health concerns.

Geriatrics is the branch of healthcare dedicated to working with older people. Geriatrics experts have suggested that physical activity may one of the best ways to prevent frailty.

Physical activity includes walking and other gentle forms of exercise. It is proven to improve health. Physical activity can lower the risk of many chronic diseases, including type 2 diabetes, heart disease, several cancers, and depression. Exercise also can improve your ability to perform your daily activities and can lower your risk of death from heart disease. In frail older adults, physical activity has been shown to improve strength, balance, agility (the ability to move quickly and easily), walking speed, and muscle mass (the amount of muscle you have in your body). These are all key functions tied to frailty.

Researchers recently reviewed a number of studies about exercise in frail older adults. The review found a number of studies that showed exercise helped reduce falls, improved walking ability, improved balance or increased muscle strength.  However, we still don’t know whether physical activity can reduce death among frail older adults.

Researchers recently designed a study to fill that knowledge gap by exploring whether physical activity could lower the high rate of death associated with frailty in older people. Their study was published in the Journal of the American Geriatrics Society. Continue reading

Aerobic Exercise May Mildly Delay or Slightly Improve Alzheimer’s Disease Symptoms

Journal of the American Geriatrics Society Research Summary

Alzheimer’s disease (AD) is a brain disorder that destroys memory and thinking skills over time. It is the most common form of dementia in older adults.  There is presently no cure for the condition, though treatment options are available. Today, some 5.3 million Americans live with AD, and it is now the sixth leading cause of death in the United States. The number of older adults who will develop AD is expected to more than triple by 2050.

Geriatrics experts have suggested that exercising can improve brain health in older adults. The World Health Organization (WHO) has recommendations for how much older adults should exercise. They suggest that older adults perform 150 minutes a week of moderate exercise (such as brisk walking), 75 minutes a week of vigorous aerobic training, or a combination of the two types. The WHO also recommends older adults perform muscle-strengthening exercises on at least two or more days a week.

However, not all studies of exercise and older adults have proven the benefits of exercise. We don’t know for sure whether exercise slows mental decline or improves older adults’ ability to think and make decisions. Continue reading

For Older Adults with Diabetes, Losing Weight through Diet and Exercise Can Improve Blood Circulation in the Brain

JAGS graphicJournal of the American Geriatrics Society Research Summary

Type 2 diabetes affects blood circulation. The disease stiffens blood vessels and reduces the amount of oxygen that circulates throughout your body. This includes your brain. When blood flow in the brain is impaired, it can affect the way we think and make decisions.

People who have type 2 diabetes are often overweight or obese. These are conditions that may also be linked to cognitive problems (problems with thinking abilities). Lowering calorie intake and increasing physical activity are known to reduce the negative effects of type 2 diabetes on the body. However, the effects of these interventions on cognition and the brain are not clear.

Recently, researchers examined information from a 10-year-long study called Action for Health in Diabetes (Look AHEAD). In this study, participants learned how to adopt healthy, long-term behavior changes. In their new study, the researchers focused on whether participants with type 2 diabetes who lowered calories in their diet and increased physical activity had better blood flow to the brain. The researchers published their findings in the Journal of the American Geriatrics Society. Continue reading