As most of the other people have stated training contracts suck. The only reason they are there is because they are trying to hold onto people for a little while.
If it were me. i would just plan on quitting after the one year is up. You may be able to dispute it. But remember that all the future companies you work for need to contact your former employers for records. It is not worth burning the bridges for a few more months of suffering.
Another approach to training contracts is SWA's requirment for the 737 type before you go. Sure they still train you more, and it is most likely a permanent job, but it is another version of a training contract. And it also does not guarantee a job.