PENGARUH SENAM OTAK (BRAIN GYM) TERHADAP PERKEMBANGAN MOTORIK KASAR PADA ANAK PRASEKOLAH DI TK RK BINTANG TIMUR LUBUK PAKAM TAHUN 2025

This study used a quasi-experimental design with a one-group pretest – posttest design. The intervention in the form of brain gym exercises was conducted twice a week for four weeks, totaling eight sessions. The instrument used to measure gross motor development was the Test of Gross Motor Development–2 (TGMD-2).The results showed that the average gross motor development score before the brain gym intervention was 80.13 with a standard deviation of 4.031. After the intervention, the average score increased to 93.63 with a standard deviation of 2.918. Data analysis using the paired sample t-test revealed a p-value of 0.000, which is smaller than the significance level α = 0.05. This indicates that there is a significant effect of brain gym on gross motor development in preschool children at TK RK Bintang Timur Lubuk Pakam in 2025.