Images credit: USFWS / Southeast at
flickr under a Creative Commons license; Feed My Starving Children (FMSC) at
flickr under a Creative Commons license
Not exact matches
(Photo Credit:
flickr user «johngiez -» Photo «Oil well» by Maarten Heerlien, Creative Commons
Flickr user
under the 2.0 Generic CC BY 2.0 license)
Okay, looking at the
FlickR photoset, it looks like Athletic Step is filed
under the «Shock Cardio» series, along with TravelFit, HIT 30 - 30, etc..