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BACKGROUND Using peer volunteers as delivery agents may improve translation of evidence-based physical activity promotion programs for older adults. This study examined whether tailored support from older peer volunteers could improve initiation and long-term maintenance of physical activity behavior. METHODS Participants were randomized to 2 16-week,(More)
Research examining exercising in pregnancy is limited by non-theoretical and cross-sectional assessments that fail to capture the specific physical and psychological demands of the pregnancy trimesters. Drawing on a population in Gainesville, Florida, USA we prospectively examined, within a multilevel design, 61 pregnant women's first and second trimester(More)
Efficacious interventions to promote long-term maintenance of physical activity are not well understood. Engineers have developed methods to create dynamical system models for modeling idiographic (i.e., within-person) relationships within systems. In behavioral research, dynamical systems modeling may assist in decomposing intervention effects and(More)
Imagery interventions intended to increase exercise behavior are rare. The Active Adult Mentoring Program (AAMP) was a randomized controlled trial with imagery content. The purposes of this study were to examine the content and perceived utility of mental imagery with 24 AAMP participants (Mage = 65.00, SD = 8.79 years). Digital recordings of AAMP sessions(More)
OBJECTIVE To evaluate the impact of power assist wheels on the distance traveled by manual wheelchair users and analyze potential cofactors in the magnitude of response and to test the hypothesis that wheelers would travel significantly further with power assist wheels. DESIGN A 16-wk A (Preintervention)-B (Intervention)-A (Postintervention) repeated(More)
OBJECTIVE Despite the well-established health benefits of physical activity, the role of exercise for eating disorders (ED) is controversial; thus dictating a need for a better understanding of the mechanisms of exercise and ED. The purpose of our study was to examine a conceptual model that hypothesizes regular exercise without psychological compulsion(More)
Objectives: The purpose of this study was to examine the effects of a peer-based mental imagery intervention on the self-determined motivation and cardio-respiratory fitness of university enrolled women. Design: Randomized controlled trial. Method: 43 University enrolled women were randomized to peer-mentored or peer-mentored plus mental imagery conditions(More)
The current study examined predictors of individual differences in the magnitude of practice-related improvements achieved by 87 older adults (meanage 63.52 years) over 18-weeks of cognitive practice. Cognitive inconsistency in both baseline trial-to-trial reaction times and week-to-week accuracy scores was included as predictors of practice-related gains(More)
PURPOSE To identify gaps in assistive technology (AT) research and solutions, with a focus on wheeled mobility. METHODS Literature review. RESULTS AT researchers have identified a need to move beyond determining whether a device works well in the laboratory or is perceived favorably by users. The vital next step in AT research is to determine the(More)
Exercise behaviour and sleep are both important health indicators that demonstrate significant decreases with age, and remain modifiable well into later life. The current investigation examined both the chronic and acute relationships between exercise behaviour and self-reported sleep in older adults through a secondary analysis of a clinical trial of a(More)