NEWARK, Del. -- Jonathan Gainey has 14 years of experience in personal training and has worked with hundreds of clients and taught numerous fitness classes. But his favorite class to teach is the one ...

RIDLEY TOWNSHIP — The sounds of laughter and enthusiastic cheering can be heard almost immediately upon entering Jabz Boxing at 611 N. Swarthmore Ave. on any given Friday night. Encouraged, guided, ...

Boxing has surged in popularity in recent years as a mainstream fitness activity, with many gym chains and health clubs offering classes and equipment for those interested in taking up the sport.

It’s Tuesday morning at the Element Gym in St. Paul’s Hamline-Midway neighborhood, regulars trickle in for the 10 a.m. boxing class. Men and women are ready to duke it out for an hour and get in their ...