Article

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.
CI - Copyright (c) 2013 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS