Ortho – straight, upright or erect, as in orthopedics – the branch of medicine devoted to correcting misalignments and impairments of the musculoskeletal system
Naut – a person engaged in the navigation of a vehicle, especially one used for research. Astronaut, cosmonaut, aeronaut, Argonaut, oceanaut, Shaolin Afronaut.
Orthonaut – an explorer on the sea of human movement; one who is inspired to both travel great distances to visit far-off lands and to dive deeply to discover profound wonders