IFA certified personal trainer BSN Bastyr University 10years of personal trainer experience High School Track Mother of Two princesses Apple Grubbs, the second half of Construction Zone, is a certified personal trainer with a BS degree of Nutrition from Bastyr University. Apple has been a certified personal trainer for 10 years and worked with a wide variety of clients from mothers to elite athletes. Apple worked in retail management with Converse Shoes before coming to Bellevue with Pete. Apple is also available for one on one training sessions, and conducts group boot camp classes, along with nutrition counseling both in office and on site.