I thought I take another angle on Avenger by taking into account factual information about Mars.
Mars: (From Wikipedia)
Gravity: 0.376G (37.6% of Earth's)
Temperature: -143 deg C to 35 deg C
Soil: The Phoenix lander returned data showing Martian soil to be slightly alkaline and containing elements such as magnesium, sodium, potassium and chlorine. These nutrients are found in gardens on Earth, and are necessary for growth of plants.[50] Experiments performed by the Lander showed that the Martian soil has a basic pH of 8.3, and may contain traces of the salt perchlorate.[51][52]
Streaks are common across Mars and new ones appear frequently on steep slopes of craters, troughs, and valleys. The streaks are dark at first and get lighter with age. Sometimes, the streaks start in a tiny area which then spread out for hundreds of metres. They have also been seen to follow the edges of boulders and other obstacles in their path.
I think this translates into the following:
Firstly the lower gravity means people move in very different ways
http://www.ncbi.nlm.nih.gov/pubmed/15856558Secondly people born on Mars are a lot weaker
http://www.livescience.com/33082-would-humans-born-on-mars-grow-taller-than-earthlings-.htmlTemperatures and soil mean its going to be hard to live and grow food though not impossible. The dust storms seem to be accurate outside the domes.
Funnily enough the anime captures the movements and landscape of Mars quite accurately. In my opinion people who grew up on Earth will seem to have miraculous strength compared to people who grew up on Mars which is consistent with the characters in Avenger. One other note is the oxygen level and radiation level on the planet must have changed to allow people to survive without the suit.