This segment delves into the intricacies of arm movement during hydro jumping, shedding light on how proper coordination can significantly impact jump height and technique. By dissecting the biomechanics of arm action, the lecture emphasizes the importance of utilizing cues and techniques that align with individual athletes' abilities. From advocating for a single-arm approach for those struggling with coordination to emphasizing the significance of shoulder elevation, coaches gain valuable insights into optimizing arm dynamics for optimal jump performance. By fostering an understanding of how arm movement contributes to vertical propulsion, coaches can help athletes refine their technique and achieve greater heights with finesse and precision.