Arthur Jones, American businessman, founded Nautilus, Inc. and MedX Corporation (born 1926)

Arthur Allen Jones was the founder of Nautilus, Inc. and MedX, Inc. and the inventor of the Nautilus exercise machines, including the Nautilus pullover, which was first sold in 1970. Jones was a pioneer in the field of physical exercise i.e. weight and strength training. He was born in Arkansas, and grew up in Seminole, Oklahoma.

BowFlex, Inc., formerly Nautilus, Inc., located in Vancouver, Washington, United States, was the American worldwide marketer, developer, and manufacturer of fitness equipment brands Bowflex, Schwinn, and JRNY, its adaptive fitness platform. The company changed its corporate name from Nautilus, Inc. to BowFlex, Inc. in 2023. BowFlex Inc. was a publicly traded company listed on the OTC Markets Group as BFXXQ, and formerly on the New York Stock Exchange. The company's products are sold globally to customers through e-commerce, call centers, and retail stores.

MedX Corporation is a privately owned company based in Ocala, Florida. MedX is the manufacture of spinal rehabilitation equipment and premium exercise equipment. MedX equipment was invented by Arthur Jones, who was also the inventor of Nautilus exercise equipment. MedX Equipment includes the MedX Medical Lumbar Machine, Medical Cervical Machine and 25 exercise pieces. MedX Medical Lumbar machine is researched as an effective treatment for back pain.