Typically the work is to assist professors with their papers or projects.
I worked odd hours, which is what I preferred. This is because as soon as I get an assignment, I would try to complete the work to get it out of the way.
I learned how research papers are written and read as well as how to work around conflicting schedules with other members and professors.
The hardest part of the job was getting a detailed explanation of what was expected of my work, so there were often many revisions that were needed.
I enjoyed the strange hours the most. Sometimes I didn't have to work a week or two because there was nothing to be done, but then there were weeks I would spend 30-40 hours on a project that needed to be done before the week was done.
I typically see one to two clients a day, and train they for an hour each. I have a very flexible schedule, which has afforded me the opportunities to shadow at several physical therapy clinics and maintain status as a full time student. I enjoy working as a personal trainer for Baylor and coaching workout classes.