Abby Petersen

Certified Personal Trainer/Owner

Abby has been a Personal Trainer and Instructor for 8 years and has owned her own gym for the past 2 years. Opening Aptitude In the fall of 2019 had always been her dream. Working with clients in a small, comfortable setting and assisting them with their goals is what Aptitude is all about. Contact Abby today and let her be your accountability partner.

Rachel Crowther 

Yoga Instructor/Owner

Rachel has been teaching yoga for over 2 years with an emphasis on kids, teen and family yoga. Rachel holds a 200-RYT, RCYT, Kidding Around Yoga Advanced Instructor. Rachel is a former Grand Raggidy Roller Derby player and understands the demands on adult athletic bodies and how yoga can be part of a healthy life style.  Let Rachel share her love and passion for yoga with you and your family.


251 Northland Dr
Rockford MI 49341


Subscribe Form

  • Facebook
  • Instagram

©2019 by Aptitude Fitness. Proudly created with