By David Wetzel New York (Knewz) — More than half of American adults are uncomfortable going to the gym because of COVID-19, according to a new survey. The survey, conducted by Gymless.org, found that 56 percent of American adults are uncomfortable going to an indoor gym or fitness center. “Gyms are spaces where it’s difficult to maintain social distancing,” says Pat Chadwick, survey author and head calisthenics coach at Gymless. “By contrast, there are plenty of outdoor places you can get a workout, and it is probably the safest place you can train. Also, it doesn’t hurt to get some ‘vitamin …