Since having children, I have taken up running because I can push them along. Sometimes I push one kid in a running stroller, other times I push two kids in a small-wheeled stroller that offers much more resistance. I have been reading and developing the [ChiRunning](http://www.chirunning.com) technique, which provides fairly detailed instructions about movement.

How can I adapt my running technique (ChiRunning specifically, or running technique in general) to accommodate pushing a stroller?

Some specific problems / questions that I am 'running' into:

1. One aspect of this method is to lean forward and use the constant state of falling for forward momentum. Does the backward resistance provided by the stroller mean that I should lean forward more/less/the same at a given speed?
2. What should I do with my arms and how close should my hands be to my body - there is the tendency for me to run into the stroller, but I can also keep it ahead of me with my elbows at 90 degrees and forearm perpendicular to the ground?
3. Is there any way in which I can benefit from using the stroller, for example by using the backward resistance to help me develop proper posture while leaning? 
![enter image description here](https://i.stack.imgur.com/uiJfT.jpg)