Exercising for successful Aging Flashcards
what factors contribute to successfula aging?
Factors that contribute to successful aging:
- minimize risk of Disease and disability
- Maintain physical and cognitive function
- continue engagement with life
- Maintain positive spirituality
Describe the current “Graying of America” and how there have been changes to percentage of elderly that make up the population. Also discuss which individuals survive longer.
The Graying of America:
- Elderly person (> or equal to age 85) make up the FASTEST GROWING segment of American society
- 13% of the U.S. populate exceed age 65 and by the year 2030, 20% will exceed age 85.
- Persons with more HEALTHFUL Lifestyles Survive longer. and the risk of disability and necessity to seek home health care is postponed and compressed into fewer years at the end of life
Describe the health consequences of physical inactivity
Physical inactivity relates casually to nearly 30% of all deaths from heart disease, colon cancer, and diabetes.
Explain what entails of the “New Gerontology”, including what health span is and what gerontologists consider successful aging to include.
The New Gerontology:
goes BEYOND age-related diseases and prevention to include concept of “Healthspan”
Healthspan- Total number of years a person remains in excellent health
-Gerontologists consider successful aging to include:
-Physical health
-Spirituality,
-Emotional and Educational Health
-Social Satisfaction
What is primary goal of aging?
VITALITY is the primary aging goal.
(NOT longevity)
-it is important to not just live longer, but live a LONG, HEALTHY life.
Describe what Health Life Expectancy is, including the disability adjusted life expectancy any how it relates to it.
Health Life Expectancy- EXPECTED number of years living with full health
-it involves Disability-Adjusted LIfe expectancy (Years of ill health, weighted according to severity and subtracted from expected overall life expectancy
What lifestyle behaviors add years to life?
Lifestyle behaviors that add years to life:
- No smoking
- Drink Moderately
- Keep physically active
What is the Healthy Life Expectancy for people in the U.S. ?
70 years old
Define all physical activity terminology such as Physical activity, exercise, physical fitness, Health, health-related physical fitness and Longevity.
Physical activity terminology:
- Physical activity: body movement produced by muscle action that increases energy expenditure
- Exercise- Planned, structured, repetitive and purposeful physical activity
- Physical fitness: Attributes related to how well one performs physical activity
- Health: Physical, mental and social well-being, NOT simply absence of disease
- health-related physical fitness: Components of physical fitness associated with some aspect of good health and or disease prevention
- Longevity- Length of life.
What are the major components of Health-related physical fitness?
Major components of Health-related physical fitness:
- Cardiovascular (aerobic) fitness
- keep heart rate up (help keep tissue healthy and get nutrients) - Flexibility of the lower back and hamstrings
- Abdominal muscular strength and endurance
- body composition (lean to fat ratio)
- keeping fat-free mass up, and maintain healthy fat levels
Describe the different methods that assess physical activity. Also discuss why it is difficult to have for getting estimates of physical activity from large groups
Different methods assess physical activity:
- direct and indirect calorimetry, self-reports, job classifications, physiologic markers, behavioral observations, mechanical or electronic monitors, and activity surveys.
- Obtaining VALID ESTIMATES of physical activity of large groups proves Difficult because of RELIANCE On SELF-REPORTS.
Describe the breakdown of U.S. Adult population and how many of them participate in physical activity, versus live sedentary lifestyle.
U.S. Adult Population:
- 15% engage in vigorous physical activity three times weekly for at least 30 mins.
- 60% do NOT engage in physical activity regularly
- 25% lead SEDENTARY lifestyles
- walking, gardening, and yard work are the MOST POPULAR leisure time activities
- 22% engage in light-moderate physical activity regularly.
Describe the activities of American who report physical activity
48% women do walking
- Majority of men do resistance training (20%)
- Cycling (same amount for men and women who participate)
- running- men do it more (12%) than women
- Stair climbing- 10% in males and 12% in females. More commonly seen in women
- Aerobics- females mostly participate in this (impact type)
-it is important to maintain bone density in females, as they are more likely to lose bone density than men.
Hence physical activity help avoid osteoporosis
Describe the level of exercise sen in U.S. children and teenagers. Also discuss the factor that leads to decline in physical activities
About one-half between ages 12 to 21 do NOT Exercise vigorously regularly
- fourteen percent report NO recent physical activity
- 25% engage in Light-to-moderate physical activity nearly everyday
- Participation in ALL types of physical activity DECLINES strikingly with Increasing AGE and school grade
Discuss the components of the physical activity pyramid and its purpose.
Physical Activity Pyramid: prudent goals to increase daily physical activity.
Levels of Pyramid:
Top Level: REDUCE TV viewing, internet surfing, excessive reading, and computer use
Second level: At Least Twice Weekly; leisure-lifestyle activities (low-aerobic exercise) like golf, light gardening and housework , Flexibility and strength- easy calisthenics, yoga, light-moderate resistance training.
Third level: At Least Three Times Weekly; Aerobic exercise: like walking, jogging, swimming, bicycling, and aerobics; Recreational exercise like tennis, hiking, racquetball and basketball
describe what the Health People 2020 is and discuss its objectives.
Healthy People 2020,
- launched in December 2010; represents the 4th generation of initiatives to guide national health promotion and disease prevention to improve health of all people in the U.S.
- has comprehensive Set of objectives and targets to measure progress for two objectives:
1. A foundation for disease prevention and wellness activities across various state and local sectors and within the federal government
2. A model for measurement of the state and local levels.
Explain the ways in which Health People 2020 plans to commit to society and people to live long health lives.
Healthy People 2020 ,
- commits to the vision of a society in which ALL people live long, healthy lives
1. Emphasizing ideas of *Health Equity that address social determinants of health and promote health across all stages of life
2. Replacing traditional print publications with *Interactive Websites as main dissemination vehicle
3. Maintaining website that allows user to tailor information to needs and explore “Evidence-based resources for implementation
what are the four primary goals of Healthy People 2020?
Healthy People 2020 is designed to achieve 4 primary goals:
- Attain HIGH-QUALITY, Longer lives, free of preventable disease, disability, injury, and premature death
- Achieve HEALTH EQUITY, eliminate disparities, and improve health of all groups
- Create Social and physical environments that PROMOTE good health for all
- Promote QUALITY of LIFe, Healthy Development and healthy behaviors across all life stages.
Describe the different factors that increases an exercise catastrophe
Likelihood of Exercise Catastrophe INCREASES With:
- Genetic predisposition
- History of fainting or chest pain with physical activity
- Unaccustomed vigorous exercise (can damage tendon or muscle)
- Exercise done with accompanying psychologic stress (more likely to get injured)
- extremes of environmental temperature
- Straining exercise with static muscle- action
- Exercise during Viral Infection or when feeling ill
- Mixing prescription drugs or dietary supplements
Describe the relationship between frequency of exertion (exercising) and Triggering of acute cardiac events.
studies have shown that 0 days of exercise during a week will have the HIGHEST RISK of Myocardial Infarction (MI). However, Increase exercise or those who exercise 5 times a week will hav lowest risk of MI.
Explain the importance of prehabilitation during physical activity and its major goals.
Prehabilitation (preventive program) Reduces sports and Recreational injuries
prehabilitation:
- Ensures readiness for participation; Reduces exercise-induced disability
- Emphasizes JOINT STRETCHING, Muscle Activation, Core Stability, and Strength, balance and muscle coordination
- Ensures Maximum Motor unit recruitment and Joint Stability
Describe SeDS (Sedentary environmental Death Syndrome) and its impact on American society, and accepts.
Sedentary Environmental Death Syndrome (SeDS) - growing list of health disorders that caused by lack of physical activity (major public health burden)
-will cause 2.5 million Premature American deaths in next decade
-Will cost $2-3 trillion in health care expenses in the U.S. in next decade
-U.S. children are now getting SeDS- related diseases; are increasingly overweight, showing Fatty streaks in arteries, and developing type 2 diabetes.
SeDS relates to numerous medical conditions/diseases
Describe the changes in muscular strength that occur with aging. Which body parts weakens more slowly than legs? differentiate between when concentric and eccentric strength decline.
Muscular Strength During Aging
- Men and women attain HIGHEST STRENGTH levels between ages 20 and 40 (when muscle cross-sectional area is Largest)
- Concentric strength Declines slowly at first, and the more rapidly after middle age
- Power capacity DECLINES faster than Maximal strength
- Eccentric strength DECLINES at a Later age and progresses more slowly than concentric strength
- ARM Strength Detoriates more SLOWLY than Leg strength
discuss the age trend among elite weightlifters and powerlifters
Weightlifting performance DECLINEs on a curvilinear train with age, while Powerlifting performances Declines LINEARLY with age
- Performance rate and magnitude of Decline with age are GREATER in Weightlifters than powerlifters
- Magnitude of decline in peak muscular power is GREATER in lifting techniques that require more complex and explosive movements
- Gender differences in age-related performance Decline (Greater in women ) only in events that require complex and explosive power movements.
Explain what leads to muscle mass decrease and the results of this. What is result of remodeling? What is the main cause of reduced strength between ages 25 and 80?
Muscle mass Decrease:
- Motor unit remodeling represents Normal CONTINUOUS process that involves motor endplate repair and reconstruction
- Remodeling leads to DENERVATION muscle atrophy which magnified by reduced physical activity, progressively Reduces muscle cross section, mass and function
- Primary cause of reduced strength between ages 25 and 80 relates to a 40-50% REDUCTION in muscle mass from muscle fiber Atrophy and Loss of motor units, even among healthy, physically active adults
What is the relationship between total number of muscle fibers and muscle cross-sectional area?
Total number of muscle fibers and cros-sectional area are DIRECTLY Related.
as you have more muscle fibers, cross-sectional area Increases.
Discuss th effects of resistance training for older adults.
Resistance training for older adults
- Moderate resistance training provides a SAFE way to Stimulate protein synthesis and Retention while slowing the normal and inevitable loss of muscle mass and strength with aging.
- Older men who resistance train have GREATER absolute gains in muscle size and strength (due to men having greater cross-sectional area) than women, but percentage improvement is similar
- A regular program of aerobic, strength, flexibility, and balance training for those 70 to 89 prevents both loss of muscle strength and increase in muscle fat infiltration
- muscle responds to vigorous training with Rapid improvement into the night decade of life
How does muscle strength change with older adults who train?
Muscle strength increases(both extension and flexion ) progressively throughout training in Older Adults
after training, older men have an increase In muscle fibers.
Explain what occurs with Neural function during aging. What can help with improving neural function while aging?
Neural function:
neural function declines as we age
-Aging leads to a 40% DECLINE in a spinal cord axon number and a 10% Decline in nerve conduction velocity
-Changes likely contribute to age-related DECREMENT In Nueromuscular Performance
-a physically active lifestyle and specific exercise training POSITIVELY affects neuromuscular functions at any age to slow age-related decline in cognitive performance.
Differentiate between the simple and complex movement time in young and old active as well as Young and Old Nonactive.
- Young active have QUiCKEST simple movement
- Old active is better than young nonactive an old non-active is the worst
describe the endocrine changes that occurs with aging
Endocrine changes
- 40% of those 65 to 75 years and 50% of those > 80 have IMPAIRED Glucose Tolerance leading to type 2 diabetes
- Pituitary gland DECREASES Thyrotropin release- leads to REDUCED metabolic function- decreased metabolic rate, glucose metabolism and protein synthesis.
What are the three hormonal system changes that occur due to aging?
Hormonal system changes due to aging:
- Hypothalamic-pituriatary-gonadal axis leading to MENOPAUSE and ANDROPAUSE( men tesotrone levels drop)
- Adrenal cortex leading to REDUCED Output of DHEA
- Growth hormone/ Insulin-like growth factor axis leading to SOMATOPAUSE.
Describe the potential mechanisms that underlie association between physical activity and reduced risk of cognitive decline
- Physical activity can lead to reduced vascular risk which leads to reduced cognitive decline/dementia
- Physical activity along with reduced obesity also lead to reduced vascular risk
- Reduced obesity or reduced vascular risk can lead to reduced inflammatory markers which leads to reduced cognitive decline and dementia.
- reduced inflammatory marks can lead to reduced cognitive decline/dementia which lead to enhanced neuronal function
- physical activity can cause enhanced neuronal function and hence reduced cognitive decline/dementia
Discuss the age-related decline in three hormone systems.
in the ANTERIOR pituitary: Growth Hormone DECREASES and causes IGF-1 in Liver and tissues to Decrease (somatopause)
- In the posterior pituitary- Corticotropic hormone and ACTH, have NO change, cortisol has NO change but DHEA DECREASES (Androgenopause)
3. The gonadotropic hormones (LSH/FSH) DECREASE causing estradiol in the ovaries to decrease (Menopause) and in testes, decreases Testosterone (Andropause)
Describe the changes in pulmonary function that occur with aging. What is the benefit of aerobic training for elderly individuals.
Pulmonary function
-Mechanical constraints cause Deterioration in Static and Dynamic lung function
-SLOWING of pulmonary ventilation and gas exchange kinetics during translation from rest to submaximal exercise
In elderly men, aerobic training INCREASES gas exchange kinetics to levels approaching values for fit young adults.
-Older endurance-trained athletes demonstrate GREATER pulmonary function capacity than sedentary counterparts.
Discuss the changes in cardiovascular function that are seen with aging. What happens to cardiac output in both trained and untrained individuals and why?
Cardiovascular function:
- VO2 max DECLINES 1% yearly and occurs TWICE as fast in sedentary Compared to Physically active
- Regular aerobic exercise CANNOT Fully Prevent age-related decline in aerobic power with aging
- Exercise maximal heart rate DECLINES with age
- Maximum Cardiac Output DECREASES IN trained and Untrained due to LOWER maximal heart rate and Stroke volume
- Compliance of Large arteries DECLINES from changes in arterial wall properties.
- DECREASED Capillary: muscle fiber ratio and Arterial Cross-section causes LOWER Blood flow to muscle
Describe the relationship of VO2 max to Appendicular Muscle Mass
VO2 max DECREASES with age
- Young men have the highest VO2 max levels
- Older women tend have lowest VO2 max levels
- those with highest VO2 max levels will have HIGHEST appendicular muscle mass.
What are the peripheral and cardiovascular functions? discuss their effects with aging.
Central and Peripheral Cardiovascular functions
Central:
1. Heart Rate
-Maximum heart rate DECLINES with age
-reflects REDUCED medullary outflow of sympathetic activity (men and women)
-Maximum heart rate DECLINE In athletes between age 50 and 70 is SMALLER than predicted (indicates Training effect)
2. Cardiac output
-maximum cardiac output DECREASES with age in trained and untrained due to LOWER maximum heart rate and stroke volume
-stroke volume DECLINE reflects combined effects of REDUCED Left Ventricular Systolic and Diastolic Myocardial performance
Peripheral factors:
-REDUCED Peripheral BLOOD FLOW capacity accompanies age-related decrease in muscle mass.
Descirbe the physiologic loss that occurs with aging. Also discuss how training effects this and how bone mass Changes as we age.
Physiologic Loss with Aging:
- Sedentary and unhealthy behaviors produce LOSSES in Functional capacity as great as aging affects
- Training of older person may SLOW or even Reverse decline in functional capacity
- Low- and high-intensity exercise allow elderly to RETAIN cardiovascular function at higher level than sedentary counterparts.
- After age 18, men and women progressively GAIN body mass and Fat until 5th or 6th decade
- Bone mass DECREASES 30 to 50% in those above age 60. ; weight-bearing and resistance exercise can INCREASE BONE MASS
Describe the relationship between age and 100M sprint performance in males and females ages 35 to 88.
The older the age, the longer it will take to run 100-M sprint
-Men run the 100 M sprint faster than women due to greater muscle mass and muscle strength.
The time it takes to run 100-M sprint will increase as we age.
Discuss the anthropometric (measurements of body) and body composition changes with aging. What happens to waist girth, Waist:Hip ratio, Sum of skin folds, Percentage body fat, and Fat-free body mass with aging.
As we age most measurements of the body increases.
- Waist Girth Increases as we age
- Waist:Hip ratio Increases as we age
- Sum of skin folds increases as we age
- Percentage of body fat increases as we age
- Fat-free Body Mass DECREASES as we age (when one is younger, Fat-free body mass is higher)
Explain the benefits of exercise for people and for elderly. also discuss the adaptations required for training.
Trainability and Age
- Exercise improves Physiologic responses at any age
- Several factors affect magnitude of response, including initial fitness, genetics and type of training
- Exercise in healthy elderly men ENHANCES heart’s systolic and diastolic properties and INCREASES VO2 max to same relative extent as younger adults.
- INCREASES in VO2 max for older women depend largely on Peripheral adaptations in trained muscle
- Sex hormones probably INFLUENCE gender-related adaptations to endurance training.
Differentiate between the classic vs current view of training Adaptations with aging.
Classic View of training- belief that we just Decline in training as we age
Modified view- We can maintain health and fitness until we reach a certain age (curve line)
Describe the relationship between physical activity, health and longevity. Also discuss what conclusions can be made form long-term studies on effects of physical activity
maintaining physical activity and fitness throughout life provides SIGNIFICANT HEALTH and LONGEVITY Benefits
- Low physical fitness is a more POWERFUL Risk Factor than High blood pressure, high cholesterol , obesity and family history.
- Long-term studies (ex: Harvard Alumni Study) on effects of physical activity include:
- COUNTERS Life-shortening effects of Cigarette smoking and Excess weight
- REDUCES death from hypertension by one Half
- REDUCES genetic tendencies towards early death
- DECREASES mortality rate by 50% for active men who’s parents lived > or equal to 65 years.
discuss the epidemologic evidence that exists discussing the effect of heart disease from lack of physical activity
Epidemiologic Evidence:
- Forty-three studies of relationship between inactivity and coronary heart disease showed LACK of regular physical activity contributes to Heart Disease in a CAUSE-and-EFFECT manner
- Sedentary person DOUBLES Risk of developing heart disease as most active individual
- Strength of association between lack of exercise and heart disease risk equals that for high blood pressure, cigarette smoking, and high cholesterol
- Light-to-moderate physical activities produce health benefits for previously sedentary middle-aged and older persons
Discuss the benefits of regular moderate physical activity. How does physical activity benefit post-menopausal or active women?
Regular Moderate physical activity
- Moderate activity such as walking REDUCES levels of Diabetic, hypertensive and cholesterol medications required by patients
- for postemenopausal women, walking briskly for 2.5 hr per week REDUCES heart disease risk by 30% regardless of age, race or body weight
- Most active women REDUCED risk by 63%.
Discuss the influence one physiological factors on aspects of life. How does it affect mortality or risk of disease?
Physiologic measures like Low-level of Cardiorespiratory fitness provide a strong INDEPENDENT PREDICTOR of Increased risk for Cardiovascular Disease and all-cause mortality
- A Strong INVERSE ASSOCIATION exists between regular physical activity and level of aerobic fitness and All-cause mortality.
- Moderate-intensity regular activity substantially REDUCES risk of dying form heart disease, cancer and other causes.
Discuss the trend for effects of regular physical activity of increased fitness and risk for Chronic Disease
Trends for effects of physical activity or increased fitness on risk of chronic disease
- EXCELLENT Evidence of reduced disease rates for All-cause mortality, Coronary Heart disease, Obesity, and Type 2 Diabetes with regular physical activity and increased fitness
- GOOD Evidence of reduced Hypertension rates, Colon cancer and OSTEOPOROSIS with regular physical activity and increased fitness
- SOME Evidence of Stroke, Breast cancer, Prostate cancer, Lung cancer with regular physical activity, and increased fitness.
- There is NO apparent difference in rate of peripheral vascular disease , rectum and stomach cancer and pancreatic caner, and Osteoarthritis across activity or fitness categories (NO change in these rates based on l regular physical activity or increased fitness)
Is structured physical activity necessary for health benefits?
NO, Health- Derived Benefits from regular physical activity DO NOT require highly structured or Vigorous activity
Describe what occurs in coroner heart disease and the consequences of this. What happens if arterial walls are damaged? What is the first sign of atherosclerosis
Coronary Heart Disease
- Involves DEGENERATIVE CHANGES in intimate or Inner lining of larger arteries that supply myocardium
- Damage to arterial walls begins as a multifactorial immunologically mediated, inflammatory response to injury.
- From hypertension , cigarette smoking, infection, homocysteine, elevated cholesterol, or free radicals .
- Damage INITIATES complex Series of Changes that produce lesions that bulge into vessel lumen
- initally take form of fatty streaks: FIRST Sign of ATHEROSCLEROSIS
- vessels congests and bursts with fibrous scar tissue