Health Promotion 179
older adults increase their level of physical activity they significantly lower their
risk of chronic diseases and conditions that often lead to premature death, while
simultaneously improving their physical health, mental health, cognitive func-
tioning, and quality of life.
S
COPE OF THE
P
ROBLEM
Older adults are disproportionately affected by an array of chronic conditions
and diseases that collectively account for more than 75% of deaths (CDC, 2005).
The top three chronic diseases among Americans age 65 and older are heart dis-
ease, cancer, and stroke, accounting for 60% of all deaths in this age group (CDC,
2004b). Regular physical activity reduces one’s risk for coronary heart disease,
high blood pressure, colon cancer, diabetes, and overall risk of dying prematurely
(CDC, 2004b; DHHS, 1996; Levkoff, Chee, & Noguchi, 2001; Rowe & Kahn, 1998).
Regular physical activity can even negate the adverse effects of other risk factors
associated with chronic disease, such as smoking, obesity, and high blood sugar
(Rowe & Kahn, 1998). Adopting healthier behaviors, including regular physical
activity, can dramatically reduce a person’s risk for most chronic diseases.
The presence of chronic diseases in older adults is not only life-threatening,
but also negatively impacts quality of life and functional status. “Chronic condi-
tions limit activities for 12 million elderly individuals living in community set-
tings; 25% of these affected individuals are unable to perform basic activities of
daily living, such as bathing, shopping, dressing, or eating. Nearly one-third of
adults over age 65 are disabled, compared to 18% of all Americans” (Center for
the Advancement of Health, 2006, p. 9). By adopting healthier lifestyles, older
adults can reduce and compress disability into a shorter period toward the end of
life (Hubert, Bloch, Oehlert, & Fries, 2002)—the essence of health promotion.
In the surgeon’s general report Bone Health and Osteoporosis (DHHS, 2004), it is
suggested that the greatest benefit of physical activity for older adults is reduc-
tion in the risk of falling, discussed elsewhere in this chapter. “Physical activity
is the only single therapy that can simultaneously improve muscle mass, muscle
strength, balance, and bone strength. As a result, it may decrease the risk of frac-
tures, in part by reducing the risk of falling” (p. 20). Approximately 20% of sen-
iors who suffer a hip fracture die within a year of the fracture, and another 20%
end up being placed in a nursing home within a year of the fracture. Maintaining
bone health is critically important to the overall health and quality of life for all
older adults, and regular exercise is the key to doing so.
Regular physical activity aids in weight control and is a key part of any weight
loss effort. Maintaining a healthy weight improves one’s overall mortality, as
studies show that extra pounds can literally change DNA and accelerate the aging
process (Yeager, 2005). In the ongoing 32-year research project at the Tulane
School of Public Health (Yeager, 2005), researchers found that as people gained
weight they became more insulin-resistant and their telomeres (strands of DNA
on the tip of each chromosome that typically shorten with age) shrank, a clear
sign that the aging process was accelerating in the overweight study volunteers.
In addition to the physical health benefits associated with regular physical ac-
tivity, there are a number of mental health benefits. Moderate amounts of physical
activity can help reduce depression, anxiety, and stress, while increasing feelings
of self-confidence and self-esteem (CDC, 2004b; DHHS, 2000; Rowe & Kahn, 1998;
Williams & Lord, 1995). People who get moderate amounts of exercise also report