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Arch Phys Med Rehabil. 2013 Apr;94(4):711-7. doi: 10.1016/j.apmr.2012.11.038. Epub 2012 Dec 7.

Walking to meet physical activity guidelines in knee osteoarthritis: is 10,000 steps enough?

Author information

  • 1Dept of Physical Therapy and Athletic Training, College of Health and Rehabilitation Sciences, Boston University, Boston, MA 02115, USA. dwtbn@bu.edu

Abstract

OBJECTIVE:

To study if step goals (eg, walking 10,000 steps a day) approximate meeting the 2008 Physical Activity Guidelines for Americans.

DESIGN:

Cross-sectional observational cohort.

SETTING:

Community.

PARTICIPANTS:

People with or at high risk of knee OA (N=1788).

INTERVENTIONS:

None.

MAIN OUTCOME MEASURES:

Objective physical activity data were collected over 7 consecutive days from people with or at high risk of knee OA participating in the Multicenter Osteoarthritis Study. Using activity monitor data, we determined the proportion that (1) walked ≥10,000 steps per day, (2) met the 2008 Physical Activity Guidelines, and (3) achieved both recommendations.

RESULTS:

Of the subjects studied (mean age ± SD, 67±8y; mean body mass index ± SD, 31±6kg/m(2); 60% women), 16.7% of men and 12.6% of women walked ≥10,000 steps per day, while 6% of men and 5% of women met the 2008 Physical Activity Guidelines for Americans. Of those walking ≥10,000 steps per day, 16.7% and 26.7% of men and women, respectively, also met the 2008 Physical Activity Guidelines.

CONCLUSIONS:

Among this sample of older adults with or at high risk of knee OA, walking ≥10,000 steps a day did not translate into meeting public health guidelines. These findings highlight the disparity between the number of steps believed to be needed per day and the recommended time-intensity guidelines to achieve positive health benefits.

Copyright © 2013 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

PMID:
23228625
[PubMed - indexed for MEDLINE]
PMCID:
PMC3608824
Free PMC Article
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