摘要:The purposes of this research are: 1) to know the differences bucket kick exercise and tube kick exercise on breast stroke skill, 2) to know the differences between bucket kick exercise and tube kick exercise for the students having high leg muscle power on breast stroke skill, 3) to know the differences between bucket kick exercise and tube kick exercise for the students having low leg muscle power on breast stroke skill, and 4) to know the interaction between types of exercise and the leg muscle power on breast stroke skills. The sample for this research is 44 students. The method of research is experimental with 2X2 factorial design. The data was analyzed using ANOVA and Tukey test and the level of significance is set at 0.05. Results showed that there is a difference between bucket kick and tube kick exercises on breast stroke skill, bucket kick exercise is better than tube kick for the students having high leg muscle power on breast stroke skill, tube kick exercise is better than bucket kick exercise for the students having low leg muscle power on breast stroke skill, and, there is an interaction between the type of exercise and the leg muscle power towards breast stroke skill.