Online registration may not be allowed for all activities. To enroll into a group exercise class, please reserve your spot via our mobile app [https://ymcagbw.org/mobileapp#faq-question-949250480]. Please contact us during regular business hours for registration information. This mat work class focuses on the body's core stability. Enhance your control, stability, coordination, endurance, balance, strength and flexibility. Please bring your own mat. Category Group Exercise Location Mind/Body Studio at Upper Main Line Branch Instructor Chrissy Gilder