do not turn it on until she is willing to run to the treadmill when you ask her take a day to call her to the treadmill, each time she comes to you you reward her. Then after a few times coax her onto the treadmill and reward. Good treadmill, etc. She needs to learn to associate the treadmill with good things. Until they run to get on the mill you do not want to turn it on.
"There are two temptations to which people fall prey with dogs. The first is to think that biology counts for everything. The second is to think it counts for nothing"
- Tom Junod
“When you KNOW better you DO better.”
― Maya Angelou