The problem is where do we draw the line of sexy to objectification. Someone is always gonna say this outfit is okay. But another will say it's objectifying. I've had this argument in comic book forums a lot. A ton of people will always say Wonder Woman and the like are always objectified in every outfit she wears.
What do you want these women to wear? Will anything be acceptable? I personally agree with sundin. Samus alt. outfit is acceptable. And would be regarded as fitness training clothing. Hell, She-Hulk has a similar outfit to Samus. And is used as her jogging/weight room clothing. Do you want every woman who's in the gym to dress in baggy clothes and cover everything up? I personally think women are objectified with examples liek ADA in Resident Evil 4. Fighting in a red dress is retarded. The Red Sonja comic would be as well. And all those dumb "armor" outfits in MMO's are another example.