WHITTIER – Putting them on, then taking them off.At fitness instructor Virginia Singleton’s annual “Thanksgiving calorie burn-off” aerobics class at Palm Park Friday morning, a group of women worked on mitigating any damage from the evening before.“When I signed up in September, this class seemed like a good idea,” said Rachel Tavarez of Whittier, who arrived at 8:30 to warm up. “But, this morning it didn’t seem like a good idea.” Singleton said the workout’s goal was to burn at least 500 calories.On average, holiday meals pack on 3,000 calories and 220 grams of fat, she said.“This makes a dent in it,” Singleton said. – Sandy Mazza AD Quality Auto 360p 720p 1080p Top articles1/5READ MOREBlues bury Kings early with four first-period goals 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!