Rhea has taught cardio and strength training for over 30 years and in 2008 became certified in Pilates mat and standing mat. In 2009, she studied Pilates equipment training and became certified by Physical Mind Institute. In May of 2019, Rhea earned a Master's in Sports Management and Administration from SNU, where she was an adjunct professor in Kinesiology for 8 years. Rhea is certified in NPCP, TRX, Barre Above, Trigger Point, and ACE and is a Master Trainer with Club Pilates.