<![CDATA[This study aimed to determine the effectiveness of combined tummy time and baby yoga interventions in improving gross motor development among infants. A quasi-experimental study with a one-group pretest–posttest design was conducted at TPMB Rama Agustina from September to October 2025. A total of 32 infants aged 2–6 months were included using a total population sampling technique based on eligibility criteria. The intervention consisted of guided tummy time sessions and structured baby yoga movements focusing on postural control, muscle activation, flexibility, and vestibular stimulation, delivered for approximately 20–25 minutes per session. Gross motor development was assessed before and after the intervention using the Alberta Infant Motor Scale (AIMS). Data were analyzed using the Wilcoxon signed-rank test. The results showed a significant increase in AIMS scores after the intervention. Before treatment, most infants demonstrated motor skills below expected milestones for age, whereas posttest findings indicated notable improvements in antigravity control, weight shifting, and transitional movements. Statistical analysis confirmed a significant difference between pretest and posttest scores (p < 0.001). In conclusion, the combination of tummy time and baby yoga is effective in enhancing gross motor development in infants and can be recommended as a safe, low-cost, and practical complementary stimulation strategy suitable for implementation in community health services and early childhood care settings.]]>
