Video Analysis Path of Action - Jumping

I had quite a bit of difficulty in getting the Tracker video clip to save. In fact, I was not able to save the file during the conversion to Quicktime (.mov) format. I have posted what I was able to do.
Here is the clip of the single jump without the tracking nodes.

Tracker Video Analysis of Falling

It was weird. It seemed like every third frame the video camera repeated a frame. Boo.
Does anyone have the knowledge or understanding of this matter to unlock its mystery?

Drop Reference 1

I was operating for a time under the misconception that my necessary involvement was being the camera operator. After filming two drops, loading the files to my computer, then checking the examples of prior drop footage online, I concluded that my role was rather to have been that of the the subject IN the video footage, thereby proving my involvement. I have consequently re-shot the drops –this time my shoe– in the manner of the video examples.