Christy Crutchfield, front, and others work their core muscles during Zawacki’s high intensity interval training class at Northampton Athletic Club.

by | Feb 18, 2019

Christy Crutchfield, front, and others work their core muscles during Zawacki’s high intensity interval training class at Northampton Athletic Club.

Christy Crutchfield, front, and others work during a high intensity interval training class taught by Andrea Zawacki at Northampton Athletic Club, Friday, Feb. 1, 2019.