Americans say they’re creatures of simple, solo exercise habits

By Dorene Internicola NEW YORK (Reuters) – Exercise trends come and go as step aerobics yield to interval training, weight machines are tossed for medicine balls and Pilates falls in and out of fashion. But when it comes to exercise habits, Americans say they prefer to stick to what's simple, solo and short. Nearly 75 percent of 1,200 adults, aged 24 to 44, questioned in an online survey about exercise habits said they worked out at least once a week and 77 percent prefer to do it alone. …