This is an outstanding StAIR for a physical education class. This resource does a good job explaining and teaching the content of FITT. Specifically, the resource does a good job of this by providing a video resource for the viewer. This allows visual learners to have as good of an opportunity to learn the material as text learners. The resource also does a good job of providing links for the students to explore the content further. Also, it provides students the ability calculate their own target heart range. This could be a good motivating factor for the students.
Perhaps one way to make this resource more UDL friendly would be to add audio to your text on the slides for students with visual impairments, students that struggle to read, and students that are auditory learners. Also, the video could be equipped with text for students that learn best by reading or are hearing impaired.