"Perhaps for our cohort it may be more feasible to ask people to reduce the amount of time they spend sitting rather than do gym-based exercises," Buchowski said. "So if people would do a little bit more household or yard work it might be equally, or more, beneficial than vigorous exercise."
Sedentary and physically active behaviors were obtained from a validated physical activity questionnaire in 23,021 black men, 9,899 white men, 32,214 black women, and 15,425 white women (age 40-79) at enrollment into the SCCS.
The prevalence of obesity was 34 percent and 29 percent in white and black men, respectively, and 46 percent and 58 percent in white and black women, respectively.
With the exception of white males, nearly one-third of the participants had less than a high school education and the majority of participants reported household incomes of less than $15,000 annually.
"It has been shown in many studies that, in general, the amount of physical activity and fitness level are related to morbidity and mortality." Buchowski said.
"Regardless of our findings, we think that promoting physical activity is important. In addition to national programs and guidelines universally available to everyone, we need targeted interventions for vulnerable populations with specific needs.
"Our study suggests that interventions in older adults should focus on both reducing sedentary behaviors and increasing more active forms of physical activity," Buchowski said.
|Contact: Craig Boerner|
Vanderbilt University Medical Center