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<DIV><FONT size=2>Hello everyone,</FONT></DIV>
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<DIV><FONT size=2>I'm forwarding two pieces on physical activity prevalence of U.S. adults. The first piece is the release of the 2007 self-reported data on physical activity from the CDC's weekly MMWR publication. The second is an article based on these finding. Both are contained in this email below.</FONT></DIV>
<DIV><FONT size=2>Jennifer</FONT></DIV>
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<DIV><FONT size=2>Jennifer Young, MPH, RD<BR>Nutrition and Physical Activity Coordinator<BR>Office of Family Health<BR>Public Health Division, DHS<BR>800 NE Oregon St., Ste. 825<BR>Portland, OR 97232<BR>telephone: (971) 673-0245<BR>fax: (971) 673-0240<BR>jennifer.l.young@state.or.us </FONT></DIV>
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<DIV><FONT size=2>>>> "Anderson, Susan (CDC/CCHP/NCCDPHP)" <zov2@cdc.gov> 12/4/2008 9:45 AM >>><BR>Please pardon the cross posting.<BR><BR>Forwarding link to the subject article in the December 5, 2008 MMWR<BR>[57(48);1297-1300]<BR><BR><BR></FONT><A href="http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5748a1.htm?s_cid=mm5748a1_e"><FONT size=2>http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5748a1.htm?s_cid=mm5748a1_e</FONT></A><BR></DIV>
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<DIV><FONT size=2>Compliments of ...</FONT></DIV>
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<DIV><FONT size=2>*********************************************<BR> Center for Family and Community Health<BR> School of Public Health<BR> University of California, Berkeley<BR> </FONT><A href="http://cfch.berkeley.edu/"><FONT size=2>http://cfch.berkeley.edu</FONT></A><BR><FONT size=2> A CDC Center for Chronic Disease Prevention<BR> and Health Promotion Research<BR>*********************************************</FONT></DIV>
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<DIV><BR><FONT size=2>Americans Are Active, But How Many Depends on Criteria</FONT></DIV>
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<DIV><FONT size=2>Peggy Peck, MedPage Today, Dec 4, 2008</FONT></DIV>
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<DIV><FONT size=2>ATLANTA, Dec. 4 -- About two-thirds of adult Americans exercised the <BR>recommended minimum of 150 minutes a week last year, according to a <BR>CDC telephone survey.</FONT></DIV>
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<DIV><FONT size=2>But when a stricter activity recommendation -- at least 30 minutes of <BR>moderate activity five or more days a week or 20 minutes of vigorous <BR>activity three times a week -- was applied, less than half of adults <BR>were classified as physically active, researchers reported in the <BR>Dec, 5 issue of Mortality and Morbidity Weekly Report.</FONT></DIV>
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<DIV><FONT size=2>The 2008 Physical Activity Guidelines for Americans, which was <BR>released in October, recommend 150 minutes of moderate-intensity <BR>activity a week or 75 minutes of vigorous-intensity activity, with <BR>the added recommendation that aerobic activity should be performed in <BR>periods of at least 10 minutes spread throughout the week.</FONT></DIV>
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<DIV><FONT size=2>The Healthy People 2010 objectives recommend a half hour of moderate <BR>activity at least five days a week or a vigorous 20-minute workout <BR>three times weekly.</FONT></DIV>
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<DIV><FONT size=2>To gauge how well Americans were meeting those goals, the researchers <BR>looked at responses to the Behavioral Risk Factor Surveillance System <BR>survey. That instrument asked 430,912 adults if they did moderate <BR>activity such as bike riding, brisk walking, housework, or gardening <BR>-- anything that caused an increased in heart rate -- for at least 10 <BR>minutes at a time when they were not working.</FONT></DIV>
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<DIV><FONT size=2>Adults who answered Yes were asked how many days a week they engaged <BR>in such activities and about how long each time.</FONT></DIV>
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<DIV><FONT size=2>On the basis of the responses to those questions, 64.5% of U.S. <BR>adults could be classified as physically active using the 2008 <BR>Physical Activity Guidelines for Americans criteria compared with <BR>only 48.8% who met the more rigorous Healthy People 2010 objectives.</FONT></DIV>
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<DIV><FONT size=2>The MMWR editors said there were two reasons to explain the <BR>discrepancy, and both had to do with where the bar was set.</FONT></DIV>
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<DIV><FONT size=2>First, the "removal of the frequency duration requirement (i.e., 30 <BR>minutes of moderate activity, five days per week, or 20 minutes of <BR>vigorous activity, three days per week)."</FONT></DIV>
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<DIV><FONT size=2>And second, "addition of criteria enabling respondents to meet the <BR>guidelines with a combination of moderate and vigorous activity."</FONT></DIV>
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<DIV><FONT size=2>The CDC said the physical activity guidelines committee removed the <BR>frequency duration requirement after a review of published data that <BR>suggested there was no evidence to prove that 30 minutes a day, five <BR>days a week was superior to 50 minutes a day, three days a week -- or <BR>any other mix -- as long as the total was 150 minutes of exercise <BR>that included several 10-minute aerobic workouts.</FONT></DIV>
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<DIV><FONT size=2>On the basis of the 2008 guidelines:<BR> * 68.9% of men and 60.4% of women were physically active in 2007.<BR> * People 65 or older were less likely to be active -- 51.2% -- <BR>than those who were 18 to 24, 74% of whom were classified as <BR>physically active.<BR> * Non-Hispanic blacks were less physically active (56.5%) than <BR>non-Hispanic whites (67.5% P 0.01).<BR> * Education was also a marker for physical activity -- 70.3% of <BR>college graduates were physically active versus 52.2% of high school dropouts.<BR> * People living in the West were more likely to be physically <BR>active than those living in the South (62.3% versus 67.8%).<BR> * And size mattered -- 68.8% of normal weight adults were <BR>physically active versus 57.1% of obese people and 67.3% of <BR>overweight individuals P 0.01).<BR>When the Healthy People objectives were applied, 50.7% of men and 47% <BR>of women were physically active.</FONT></DIV>
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<DIV><FONT size=2>The MMWR editors noted that the findings have a number of limitations <BR>including the reliance on self-reporting, and the use of landline <BR>phones, which eliminated persons who use only cell phones or who have <BR>no access to a phone.</FONT></DIV>
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<DIV><FONT size=2>Moreover, they said, the response rate was only 50.6%, which raises <BR>the possibility of response bias.</FONT></DIV>
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