Greenfields Outdoor Fitness | 128 followers on Linked In. Promoting Wellness Fighting Obesity One Community at a Time | Create an inclusive, multigenerational outdoor gym with Greenfields Outdoor Fitness! With Functional Fitness units for advanced workouts, the patented Signature Accessible™ line for wheelchair users ( U. S. patent 9,079,069), and the versatile Professional Series with adjustable resistance, Greenfields’ units not only promote fitness but also bring diverse populations together. Greenfields’ exercise units are enjoyed at parks, schools, trails, and military bases worldwide.