Physical activity and its association with selected dietary behaviors Page: 2
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more of moderate-intensity exercise on most, preferably all, days of the week (Pate et al.,
1995). Moreover, according to the 1996 Surgeon General's Report more than 60% of
American adults are not regularly active, and 25% of the adult population are not active
at all (U.S. Department of Health & Human Services, 1996). In addition, the March 2001
Morbidity and Mortality Weekly Report states that in order to have "achieved
recommended levels of physical activity, a person must have reported engaging in
moderate-intensity physical activity greater than or equal to 5 times per week for greater
than or equal to 30 minutes each time, vigorous-intensity physical activity greater than or
equal to 3 times per week for greater than or equal to 20 minutes each time, or both
during the preceding month" (MMWR, 2001, p. 166). Unfortunately, only 22% of adults
are at a level of activity deemed sufficient for health benefit (U.S. Department of Health
& Human Services, 1996).
Physical activity is not the only lifestyle behavior that needs to be improved.
Consumption of foods high in dietary fat has been implicated as a causal factor in the
etiology of many diseases and disease-risk factors, including coronary heart disease,
hypertension, non-insulin-dependent diabetes mellitus, certain cancers, and obesity
(Nissinen & Stanley, 1989). Thus, inclusion of nutritional behaviors in studies of healthy
lifestyles is critical from a theoretical perspective because of its importance for morbidity
and mortality (Patterson, Haines, & Popkin, 1994).
The solution to a healthy lifestyle seems simple; yet, for many individuals this
lifestyle is not easily achieved. Traditional assessments of behavior modification
depended on discrete measures based on assumptions that changes occur quickly,
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Cartwright, Amanda R. Physical activity and its association with selected dietary behaviors, thesis, August 2001; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc2910/m1/4/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .