A212: Experimental Study on the KDL Physical Education Curriculum Promoting Preschoolers’ Gross Motor Development

Early childhood is a critical stage for the development of fundamental motor skills, with gross motor skills being the primary focus. Effective development of gross motor skills lays a foundation for learning complex movements during adolescence. Research confirmed that gross motor skills also directly affect Preschoolers’ perceptual, cognitive, and social adaptability development. This study explores the effectiveness of the "KDL Physical Education and Health Curriculum" in promoting gross motor skills development in preschoolers, aiming to enhance their overall health. From September to December 2024, 167 Preschoolers from primary, middle, and senior classes at Yijing Road Kindergarten in Chongqing Liangjiang New Area participated in the "KDL Physical Education and Health Curriculum" (Preschool Edition) for one semester. The TGMD-3 assessment was used to measure gross motor skill development prior to and post-intervention, with data analyzed using SPSS 21.0 for descriptive statistics and T-tests. Significant improvements were observed in movement skills among all age groups. Primary classes showed notable progress in horse stance, single-leg hop, and standing long jump (P < 0.05). The middle classes demonstrated significant improvement in gallop, single-leg hop, and skip (P < 0.05). Senior classes exhibited significant gains in run, gallop, single-leg hop, and slide (P < 0.05). For manipulative skills, primary classes showed significant improvement in two-hand catch, stationary kick, overhand throw, and underhand toss (P < 0.05). The middle classes improved significantly in stationary kick, overhand throw, and underhand toss (P < 0.05). Senior classes demonstrated significant progress in six out of seven test items: two-hand strike, stationary dribble, two-hand catch, stationary kick, overhand throw, and underhand toss (P < 0.05). The "KDL Physical Education and Health Curriculum" (Preschool Edition) effectively promotes gross motor skill development, with more significant improvements in movement skills than manipulative skills. However, variations in development across different age groups suggest the need for a comprehensive home-school-community approach. Providing children with more exercise opportunities and professional guidance through integrated interventions can further enhance gross motor skill development, laying a foundation for future fundamental and specialized sports skill acquisition.