A: Like most fitness regimens, you will only see results with regular, consistent practice. Optimally, you should work out two to four times a week - combining private sessions with Mat classes. Within about 10 to 15 sessions you'll begin to understand and integrate the various Pilates principles in your body and start, to see and feel noticeable results - an increase in core strength, muscle tone, and flexibility and a general overall sense of well-being.