Kristi L. Storti

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UNLABELLED Accurate assessment of physical activity (PA) is necessary to identify the sedentary older individual who is in need of activity intervention. Activity monitors are quite popular, although it has been suggested that they are less accurate at slow gait speeds. PURPOSE To examine the accuracy of the three activity monitors in older individuals(More)
INTRODUCTION Month-to-month variation in physical activity levels in a cohort of postmenopausal women participating in a single site clinical trial undergoing lifestyle intervention was investigated before and after lifestyle intervention. METHODS Participants were Caucasian and African American women (mean age = 57.0 +/- 3.0 yr) from the Women on the(More)
BACKGROUND Accelerometers were incorporated in the 2003-2004 National Health and Nutritional Examination Survey (NHANES) study cycle for objective assessment of physical activity. This is the first time that objective physical activity data are available on a nationally representative sample of U.S. residents. The use of accelerometers allows researchers to(More)
BACKGROUND Physical activity (PA) declines during adolescence. There has been little research describing this decline or examining participation and nonparticipation in specific activities. OBJECTIVE To describe the pattern of change in the number of physical activities, the time spent on specific activities, and the stability of participation and(More)
BACKGROUND A limited body of evidence, mostly based on self-report, is available regarding physical activity levels among American-Indian adults. PURPOSE This study aims to examine physical activity levels objectively using pedometers among a large cohort of American-Indian adult participants in the Strong Heart Family Study (SHFS). METHODS Physical(More)
BACKGROUND The relationship between obesity and physical function is not well understood. Physical activity may be a key factor impacting on the relationship between obesity and physical function. METHODS Subjects included 171 community-dwelling women (mean age = 74.3, SD = 4.3) participating in a 14-year follow-up study to a walking intervention trial.(More)
BACKGROUND Current accelerometer technology allows for data collection using brief time sampling intervals (i.e., epochs). The study aims were to examine the role of epoch length on physical activity estimates and subsequent relationships with clinically-meaningful health outcomes in post-menopausal women. METHODS Data was obtained from the Woman On the(More)
OBJECTIVE To examine the reliability and convergent validity of physical activity (PA) and inactivity estimates obtained with the past-week Modifiable Activity Questionnaire (PWMAQ). DESIGN The PWMAQ, an interviewer-administered questionnaire, was administered twice, one week apart, during visits 3 and 4 of six total visits. Intra-class correlation(More)
BACKGROUND Physical activity may play a role in preventing gallstone disease. METHODS The activity/gallstone relationship was examined in post-menopausal women from the Study of Osteoporotic Fractures (SOF; 1986-1988), a prospective study of fracture risk factors in 8010 women (mean age = 71.1 years, SD = 4.9). RESULTS Multivariate logistic regression(More)
OBJECTIVE Regular physical activity, including running, is recommended based on known cardiovascular and mortality benefits. However, controversy exists regarding whether running can be harmful to knees. The purpose of this study is to evaluate the relationship of running with knee pain, radiographic osteoarthritis (OA), and symptomatic OA. METHODS This(More)