Best of Boston

2010 Best Aerobics Instructor

Helena Collins, Life in Synergy

Cross a weighted ball with a giant rubber band, and you get a workout that strengthens underused muscles while stretching overused ones. Helena Collins’s resistance-training classes leave you long and lean, but these sessions are no slog—they’re so festive, in fact, there’s often a waiting list.

867 Boylston St., Boston, 617-867-6500,