The after effects of Marshan gravity after being on the planet for some time and landing on earth one looks spaztic on resuming the Mars walk of this walking side ways by skiping. On Mars you can get a good skip three feet six feet some times 15 side ways. Most all martian visitors fall down and can not move very much. Starting so young it was kind of fun to master the mars skip until back on earth where it takes a great deal of effort to skip three feet. People notice you walk funny and it is kind of a hard habit to get out of.
Any person born on mars would likely develop in a way that would allow them to function normally in its gravity. Likely, they would be quite tall and not posses enough muscle mass to go to earth and live a normal life.
A person born on Earth, who spends years on Mars would have to undergo some physical rehab to return to Earth, or would have to engage in a rigorous physical regime.