Background: Improving the physical characteristics of rhythmic gymnasts (RGs) has a significant impact on their level of performance. The enhancing of certain characteristics among RG is helpful in the early stages of RG training process. Methods: The current quasi-experimental study aimed to assess the effects of the core training program on enhancing physical characteristics including power (vertical jump test), balance (stork stand balance test), flexibility (sit and reach test), and strength and endurance (sit-up test), among Malaysian rhythmic gymnasts. Forty female rhythmic gymnasts (aged 6-9 years old) from 2 sport clubs located in Kuala Lumpur, Malaysia, were selected to participant in this study and divided randomly into intervention and control groups. Participants in the intervention group received 12 weeks of the core training program as the intervention program. Results: The results showed the core training program had positive effects on physical characteristics including power (Δmean=-2.95, p