The courses for university staff start on 7 February. Enrolment is possible at: https://einschreibung.usv-erfurt.de/ws21. You will also find more information there.
You can try out the digital sports classes "Body Intensive" (31.01.), Yoga (02.02.) and Pilates (03.02.) for free. Registration is via Moodle: Courses/Continuing Education/University Health Promotion (enrolment key: Prüfungsfit).