[Jog] Fwd: Prevalence of Self-Reported Physically Active Adults --- UnitedStates, 2007

[Jennifer L YOUNG]

Hello everyone,
 
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.
Jennifer
 
Jennifer Young, MPH, RD
Nutrition and Physical Activity Coordinator
Office of Family Health
Public Health Division, DHS
800 NE Oregon St., Ste. 825
Portland, OR 97232
telephone: (971) 673-0245
fax: (971) 673-0240
jennifer.l.young at state.or.us    
 
>>> "Anderson, Susan (CDC/CCHP/NCCDPHP)" <zov2 at cdc.gov> 12/4/2008 9:45 AM >>>
Please pardon the cross posting.

Forwarding link to the subject article in the December 5, 2008 MMWR
[57(48);1297-1300]


http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5748a1.htm?s_cid=mm5748a1_e 
 
 
Compliments of ...
 
*********************************************
   Center for Family and Community Health
           School of Public Health
      University of California, Berkeley
           http://cfch.berkeley.edu ( http://cfch.berkeley.edu/ )
  A CDC Center for Chronic Disease Prevention
        and Health Promotion Research
*********************************************
 

Americans Are Active, But How Many Depends on Criteria
 
Peggy Peck, MedPage Today, Dec 4, 2008
 
ATLANTA, Dec. 4 -- About two-thirds of adult Americans exercised the 
recommended minimum of 150 minutes a week last year, according to a 
CDC telephone survey.
 
But when a stricter activity recommendation -- at least 30 minutes of 
moderate activity five or more days a week or 20 minutes of vigorous 
activity three times a week -- was applied, less than half of adults 
were classified as physically active, researchers reported in the 
Dec, 5 issue of Mortality and Morbidity Weekly Report.
 
The 2008 Physical Activity Guidelines for Americans, which was 
released in October, recommend 150 minutes of moderate-intensity 
activity a week or 75 minutes of vigorous-intensity activity, with 
the added recommendation that aerobic activity should be performed in 
periods of at least 10 minutes spread throughout the week.
 
The Healthy People 2010 objectives recommend a half hour of moderate 
activity at least five days a week or a vigorous 20-minute workout 
three times weekly.
 
To gauge how well Americans were meeting those goals, the researchers 
looked at responses to the Behavioral Risk Factor Surveillance System 
survey. That instrument asked 430,912 adults if they did moderate 
activity such as bike riding, brisk walking, housework, or gardening 
-- anything that caused an increased in heart rate -- for at least 10 
minutes at a time when they were not working.
 
Adults who answered Yes were asked how many days a week they engaged 
in such activities and about how long each time.
 
On the basis of the responses to those questions, 64.5% of U.S. 
adults could be classified as physically active using the 2008 
Physical Activity Guidelines for Americans criteria compared with 
only 48.8% who met the more rigorous Healthy People 2010 objectives.
 
The MMWR editors said there were two reasons to explain the 
discrepancy, and both had to do with where the bar was set.
 
First, the "removal of the frequency duration requirement (i.e., 30 
minutes of moderate activity, five days per week, or 20 minutes of 
vigorous activity, three days per week)."
 
And second, "addition of criteria enabling respondents to meet the 
guidelines with a combination of moderate and vigorous activity."
 
The CDC said the physical activity guidelines committee removed the 
frequency duration requirement after a review of published data that 
suggested there was no evidence to prove that 30 minutes a day, five 
days a week was superior to 50 minutes a day, three days a week -- or 
any other mix -- as long as the total was 150 minutes of exercise 
that included several 10-minute aerobic workouts.
 
On the basis of the 2008 guidelines:
    * 68.9% of men and 60.4% of women were physically active in 2007.
    * People 65 or older were less likely to be active -- 51.2% -- 
than those who were 18 to 24, 74% of whom were classified as 
physically active.
    * Non-Hispanic blacks were less physically active (56.5%) than 
non-Hispanic whites (67.5% P 0.01).
    * Education was also a marker for physical activity -- 70.3% of 
college graduates were physically active versus 52.2% of high school dropouts.
    * People living in the West were more likely to be physically 
active than those living in the South (62.3% versus 67.8%).
    * And size mattered -- 68.8% of normal weight adults were 
physically active versus 57.1% of obese people and 67.3% of 
overweight individuals P 0.01).
When the Healthy People objectives were applied, 50.7% of men and 47% 
of women were physically active.
 
The MMWR editors noted that the findings have a number of limitations 
including the reliance on self-reporting, and the use of landline 
phones, which eliminated persons who use only cell phones or who have 
no access to a phone.
 
Moreover, they said, the response rate was only 50.6%, which raises 
the possibility of response bias.
 
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