The Rotational Athlete In today’s blog we will be discussing a pattern in the overhead/rotational athlete, called the “Serape Effect”. Gene A. Logan and Wayne C. McKinney introduced the Serape Effect to us in their book, “Kinesiology” a couple centuries ago. The Serape Effect gets its name from a Mexican garment that is draped loosely over the shoulders and is crossed in front of the body. The muscles involved in the serape effects are the rhomboids, serratus anterior, external obliques and internal obliques. “The Serape Effect incorporates several major concepts which are vital to the understanding of movement. In ballistic actions such as throwing and kicking, the serape muscles add to the summation of internal forces. They also transfer internal force from a large body segment, the trunk, to relatively smaller body parts, the limbs. For example, the serape effect functions in throwing by summating, adding to, and transferring the internal forces generated ...
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