778 RESULTS: During an average of 6.1 years of follow-up, 133 new cases of glaucoma occurred. The hazard ratios (95% confidence intervals) for incident glaucoma were 0.77 (0.44- 1.35), 0.80 (0.48-1.32), and 0.62 (0.40-0.97) for low activity (1-499 MET-min/week), moderate activity (500-999 MET-min/week) and high activity group (≥1,000 MET-min/week), respectively, compared to inactive group (0 MET-min/week) after adjusting for potential confounders (p for trend < 0.05). In stratified analyses, we found stronger associations between high physical activity and reduced glaucoma risk in older adults, overweight/obese, non-smokers, and light-to-moderate alcohol drinkers. CONCLUSION: Being physically active at ≥1,000 MET-minutes per week was significantly associated with a lower risk of incident glaucoma in this middle-aged population. Supported by NIH Grant AG06945, HL62508, DK088195, and an unrestricted research grant from The Coca-Cola Company. 2872 Board #158 May 30, 3:30 PM - 5:00 PM Correlates of Long Term Physical Activity Adherence in Women: A Longitudinal Study Haichun Sun, Cheryl A. Vamos, Sara B. Flory, Rita DeBate, Erika Thompson, Jennifer Bleck. University of South Florida, Tampa, FL. (Sponsor: Weimo Zhu, FACSM) (No relationships reported) Epidemiology studies suggest that engagement in 30 minutes of moderate to vigorous physical activity (MVPA) a day could lower the risk of developing chronic disease in women. Studies also indicate that women’s MVPA is influenced by individual factors (e.g., self-efficacy), social factors (e.g., support from family or friends), and environmental factors (e.g., neighborhood cohesion, crime/safety). However, little is known about the factors t hat may influence women’s adherence to MVPA using longitudinal data. PURPOSE: To examine the correlates of long term physical activity (PA) participation among women. METHODS: Female data from Waves 1, 3, and 4 (n=5,381) of the National Longitudinal Study of Adolescent Health were used for the analysis. The outcome of PA adherence was operationalized as (1) consistently physically active (at least five instances during the week active) in both Waves 3 and 4 (during adulthood), and (2) consistently not physically active or physically active in either Wave 3 or 4. Predictor variables from Wave 1 (during adolescence) included race/ethnicity, PA level, self-perception of being physically fit, general health status, attempt to change weight, parents’ income level, parents’ education, wellbeing, depression, access to physical activity resources, days of physical education(PE), and gra de level. Crude and adjusted logistic regression models were utilized to estimate the adjusted odds ratios (aOR) and 95% confidence intervals for the outcome variable. RESULTS: PA levels during adolescence significantly predicted PA adherence (aOR = 1.67, 95% CI 1.35-2.05). Additionally, wanting to lose weight (aOR = 1.49, 95% CI 1.20-1.85), using a fitness center in the neighborhood (aOR = 1.28, 95% CI 1.04-1.58), and having 5 days of P.E. a week (aOR = 1.50, 95% CI 1.09-2.06) were significant predictors. Persons who did not perceive being physically fit (Disagree/Strongly Disagree: aOR = 0.65, 95% CI 0.45-0.95) and Black, Non-Hispanics (aOR = 0.59, 95% CI 0.43-0.81) were less likely to adhere to PA. CONCLUSION: The findings suggested that physically active adolescents were more likely to become active adults. Future research should address interventions (e.g., PE programs; community resources) that may promote lifetime PA in women, with the goal of decreasing morbidity and mortality. 2873 Board #159 May 30, 3:30 PM - 5:00 PM Prevalence Of Low Back Pain By Physical Activity Domains In The U.S. Yong Gao 1 , Scott Conger 1 , Haichun Sun 2 , Zachary Pope 1 . 1 Boise State University, Boise, ID. 2 University of South Florida, Tempa, FL. (Sponsor: Lynda Ransdell, FACSM) (No relationships reported) Low back pain (LBP) is one of the most commonly reported health problems worldwide in adults. It is also the major cause of workplace absenteeism and medical expenses. Increased physical activity (PA) levels have been associated with a decreased prevalence of LBP. However, the relationship between LBP and the individual PA domains is not clear. PURPOSE: To examine the prevalence of LBP and the relationship between LBP and the individual PA domains using the 2009-10 National Health and Nutrition Examination Survey (NHANES). METHOD: Data were obtained from the 2009-10 NHANES, where LBP was measured using the Arthritis Questionnaire (ARQ) specifically designed to collect LBP related information among U.S. adults during this one-time data collection effort. A total of 989 adults (70.2% males, 29.8% females) aged 20 to 69 years who completed anthropometric measurements and ARQ, PA questionnaire and demographic information were included in the study. SAS SURVEY procedures were used for data analyses to account for the complex NHANES sampling design as suggested by the NHANES analytic guidelines. RESULTS: More than 70% of U.S. adults (69.6% males and 70.5% females) reported having LBP on almost every day for 3 or more months in a row at least once in their life. LBP prevalence varied across different PA domains, with 75.4% who engaged in vigorous workplace PA (VWPA), 70.1% who engaged in moderate workplace PA (MWPA), 64.8% who engaged in transportation PA, 63.1% who participated in vigorous leisure-time PA (VLPA), and 70.4% who engaged in moderate leisure-time PA (MLPA) reported LBP. The logistic regression analysis revealed age (p= 0.021), hours spent on VWPA (p = 0.003), hours spent on VLPA (p=0.05), and waist circumference (p = 0.014), were significantly associated with the prevalence of LBP. When all other factors were held constant, respondents who were older (odds ratio [OD] = 1.13), engaged in more hours of VWPA (OD=1.14) and had larger waist circumference (OD=1.82) were more likely to have LBP; and those who engaged in more hours of VLPA (OD = 0.68) were less likely to have LBP. CONCLUSION: High levels of workplace PA are associated with an increased prevalence of LBP while vigorous leisure-time PA lowers LBP prevalence. When developing PA interventions for LBP, the PA domain should be carefully considered. 2874 Board #160 May 30, 3:30 PM - 5:00 PM The Associations Between Adolescents’ Current Weight-Action and Achieving Health-Related Fitness Standards Mitch Barton 1 , Scott B. Martin 1 , Allen W. Jackson, FACSM 1 , Trent A. Petrie 1 , Christy A. Greenleaf 2 . 1 University of North Texas, Denton, TX. 2 University of Wisconsin-Milwaukee, Milwaukee, WI. (No relationships reported) The FITNESSGRAM® assessment is comprised of criterion health standards based on gender and age. These standards provide an indicator of how physically fit adolescents should be in order to achieve health benefits. Currently, limited information is available on Healthy Fitness Zone™ (HFZ) status and adolescents’ weight action (i. e., trying to lose weight, gain weight, maintain weight, or not doing anything about weight [No Action]). PURPOSE: To examine the associations between adolescents’ current weight -action and achieving health-related fitness standards for cardiorespiratory fitness (CRF) and body composition (Body Mass Index [BMI]). METHODS: Adolescents attending suburban middle schools in the southern United States completed the FITNESSGRAM CRF and BMI assessments. They were then categorized into the CRF and BMI HFZ or Needs Improvement Zone. In addition, they were asked to complete health and physical activity surveys, which included a single item regarding their current weight action. Copyright © 2014 by the American College of Sports Medicine. Unauthorized reproduction of this article is prohibited.