As a coach, how can I send workouts/plans to my athletes?
For workouts, create a workout library specific to that athlete (or athletes) and add your workouts to that library.
From there, you may either export that specific library to file and email to your athlete.
You may share the library out on the web as a "Private" library. You can push the library to the PerfPRO website via Studio's "Share this Library on the Web" and set it as private using a user name and password. You would then provide this username/pw combo with your athlete so they can import it into their PerfPRO Studio library and get to work.