Physical Activity Self-Definition Among Adolescents

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Since research involving adults indicates that physical activity (PA) self-definition influences PA participation, understanding PA self-definition and related factors, such as PA frequency and enjoyment, in youth is essential for designing interventions to reverse the decline in PA that occurs from childhood through adolescence. The objective of this study was to explore correlates of PA self-definition and assess differences in PA self-definition among African American and European American boys and girls in early, middle, and late puberty. A 3 (developmental stage) x 2 (gender) design was used. African American and European American boys and girls, ages 9 to 17, participated. A total of 168 adolescents completed demographic data, developmental stage, and current and future PA self-definition questionnaires. Peak VO2 was obtained as a measure of physical fitness. Current PA self-definition was positively correlated with peak VO2 (p < .01) and future PA self-definition (p <.01). Males had higher current (p = .032) and future (p = .021) PA self-definition than females. The finding that boys have stronger current and future PA self-definitions than girls highlights the challenge for health professionals to enact immediate and effective measures to alter girls' perceptions of themselves in terms of PA participation. Since current PA self-definition is also significantly correlated with future PA participation, strategies to assist girls in developing a strong PA self-definition may contribute to increased PA in their adult years.