The Self-Determination Theory states that self-determined athletes have higher intrinsic motivation, acting for the pleasure in the pursuit of their social, physical and psychological well-being. This
study aimed to evaluate the self-determination levels in athletes of Rhythmic Gymnastics.
The study included 47 athletes of Rhythmic Gymnastics, aged 13-16 years. For data collection, we used the "Inventory of Self-Determination for Practitioners of Physical Activity and Sports"
(IAPAFE-25), which assesses 5 levels of self-determination, each with 5 items, answered in a Likert scale, graduated in 5 points. Data normality was verified using the Shapiro-Wilk test. The average
comparison was carried out using the paired t test.
The descriptive analysis indicated that the mean ranged from 6.63 (amotivation) to 16.17 (Identified Regulation). The standard deviations associated ranged from 2.78 to 4.01 (so that they are
suitable). Autonomy levels are distributed in three groups statistically different from each other (p <0.001): a) Intrinsic Motivation and Regulation Identified statistically undifferentiated averages
(t = -1.63; p> 0.05); b) introjected regulation and external regulation formed a second group with statistically undifferentiated averages (t = -0.544; p> 0.05); c) amotivation, whose means were
statistically lower than the others (p <0.001).
The athletes evaluated presented, predominantly, more autonomous motivation levels, and significantly lower levels of amotivation. These levels are desirable in sports.