We examined the relationship between ladder exercise and reaction times of the upper limbs and whole body in preschool children. The participants were 167 children, aged 4-6 years, who practiced ladder tasks for 4 months. Thereafter, they completed a ladder achievement test. In addition, they performed three types of reaction-time tests (pushing a switch, removing their hands from the switch, and jumping to a mat in front of them). Relationships between the ladder scores and the three reaction-time test results were significant and relatively high (R = 0.707). In particular, the standard partial regression coefficient for whole-body reaction time (-0.417) was significant (p < 0.05). Therefore, ladder exercise may be particularly effective for developing various reaction movements of children in recent times.
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