The research aims to identify the effect of a land-based training program on certain biomechanical variables of arm movements and the Personal Record in the 50m breaststroke. The researchers used the experimental method with an experimental design for two groups, one experimental and the other control. The research community represents swimmers registered with the Egyptian Swimming Federation. The research sample consisted of (10) swimmers who were divided into two groups, (5) swimmers for the experimental group, and (5) swimmers for the control group, in addition to (5) swimmers for the exploratory group from the same research community but outside the main group. The most important results were that the training program proved its effectiveness in developing arm movements for breaststroke swimming, which led to a noticeable improvement in the digital level. The researchers also recommended paying attention to land-based training due to its great importance in developing swimmers' performance.