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The article presents a study that examined the muscle activation patterns of three upper- and two lower-extremity muscles during the windmill pitching motion of women's fast-pitch softball. Data are presented on the proportion of maximum isometric contraction reached by the biceps, triceps, rhomboids, gluteus maximus, and medius muscles.

The article presents the results of a study which investigated the kinematics involved in the windmill softball pitch, as performed by girls. An overview of related previous research is provided, along with details of the experimental protocol. It was found that more advanced players used more of the kinetic chain effectively, including the torso, shoulder, and the entire arm.

The article discusses the report "Biceps Activity During Windmill Softball Pitching," by researcher I. L. Rojas and colleagues in the March 2009 issue of the "American Journal of Sports Medicine." Topics include an overview of the researchers' investigation of both college and professional softball players to discover the types of pitches that cause anterior shoulder pain, specifically the windmill pitch.