Research among adults has shown that athletic self-perceptions are plausible determinants of physical activity (PA). Little is known, however, about the self-perceptions of children or adolescents and their relation to PA. This study examined self-generated definitions of being “athletic”, self-ratings, conception of ability, and PA among 91 adolescents (mean age = 13.7 yrs; 55 girls, 36 boys; 63% White, 22% Hispanic, 8% Black, 7% Other). Responses indicated that the meaning given to the word “athletic” was primarily being physically active (freq = 87%, e.g., participating in several types of PAs/sports, exercising, working out, not sitting), followed by effort (freq = 32%, e.g., time commitment, trying hard), ability (freq = 29%, e.g., good at sports/PA), positive affect (freq = 28%, e.g., like PA/sports, positive attitude), and physical appearance (freq = 11%, e.g., in shape, not fat). Girls' definitions were not statistically different from boys, except girls were more likely to mention effort-related words more than boys (p = .015, OR = 3.59). Non-whites mentioned appearance-related words more than whites (p = .033, OR = 4.8), but there were no other ethnic differences. Girls' self-ratings on being athletic were lower than boys (p = .003), but there were no significant ethnic effects or gender interactions. No gender or ethnic differences were found on certainty of self-ratings or on conception of ability: all students were highly certain of their athletic standing (M = 4.4/5) and felt a person could become more athletic with effort and practice (M = 4.6/5). Self-ratings on athletic standing predicted bouts of vigorous PA over the last 7 days (p = .004, > 6 METS), total number of PAs (p = .032) and organized team participation (p < .0001) over the past year, as well as total moderate MET Min/past yr (p = .025, 3–6 METS). These findings suggest that athletic self-perceptions are important influences on PA in adolescents. Supported by Cancer Research Foundation of America.
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