PURPOSE: This study examined the impact of an 8-week corrective dance intervention on thoracic hyperkyphosis, scapular position, breathing, and happiness in girls aged 10 to 12 years. METHODS: Sixty participants were randomly assigned to either an experimental (EX) or control (CO) group. The intervention involved rhythmic and corrective movements conducted 3 times a week. Measurements were taken before and after the intervention for thoracic hyperkyphosis angle, scapular position, lung function, and happiness levels. RESULTS: EX showed greater improvements (p = 0.001) than CO for the decrement of thoracic hyperkyphosis angle (48.20 to 42.80 degree) than in CO (47.66 degree to 46.59 degree), and scapular position improved more (p = 0.003) in EX (1.48 degree to 1.20 degree) than in CO (1.44 degree to 1.42 degree). Forced vital capacity (p = 0.001) and forced expiratory volume in 1 second (p = 0.001) significantly increased in EX (FVC: 2.65 to 3.40 L; FEV1: 2.32 to 2.74 L), while they remained stable in CO. Happiness levels significantly improved (p = 0.001) in EX (42.20 to 49.79) and slightly decreased in CO (41.80 to 40.15). CONCLUSIONS: The 8-week dance program improved posture, scapular position, breathing, and happiness in girls aged 10 to 12 years. It enhances physical health, emotional well-being, and social skills in children and adolescents.

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