Anyone wishing to use the xcos in the great outdoors, here gets a ton of suggestions. Although the exercises are designed for the living room, almost all can be applied even in brisk walking. And for exercises like the woodcutter easy to search for one atmospheric stand.
Personally, I find them better for working out and walking, as that came with my DVD xcos for XCO Running & Walking.
A bit annoying I find that Barbara Klein permanently applying the immense benefits of these handy rattles. They could have saved. If you have the xcos ever at home, one is anyway already convinced.
From me, despite the annoying advertising slogans a strong buy recommendation. Especially in light of the very very poor overall bid for the XCO training design the DVD is the best I know at the time.