Joanna L. Morrissey

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In a sample of 291 adolescents (mean age 13 yr), seven psychosocial factors, including family support, were examined in relation to accelerometry-derived physical activity (PA) measured after school and during the weekend. Gender-specific stepwise linear regression analyses determined which combinations of factors explained the variance in nonschool(More)
The challenge of research patient recruitment is intensifying in the 1990s. Relevant factors include the often negative impact of the press, increasing competition for patients, an increasingly ethnically diverse population, and a pervasive trend toward managed care. Based on preliminary findings from a patient focus group, 550 patients were contacted by(More)
PURPOSE This study aimed to examine the tracking of physical activity (PA) during a 10-yr period and to investigate whether sex differences in PA trajectories are altered after aligning by maturity instead of age. METHODS The Iowa Bone Development Study collected accelerometer data on a cohort of 140 girls and 128 boys at ages 5, 9, 11, 13, and 15 yr.(More)
BACKGROUND This study examined if family and friend support predicted adolescent physical activity (PA) across a five-year time span. METHODS The Iowa Bone Development Study collected objective measures of physical activity and self-report of physical activity psychosocial factors at ages 13 (n = 306), 15 (n = 356), and 17 yr (n = 317). Total moderate and(More)
1. This four-week, randomized, double-blind, multicenter study compared the efficacy and safety of adinazolam-SR, at three dosage levels, with placebo. Forty (40) patients were randomized at our site: 10 to adinazolam 30 mg/day, 10 to 60 mg/day, 10 to 90 mg/day, and 10 to placebo. All patients were moderately anxious with Hamilton Anxiety Scale (HAM-A)(More)
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