People with leg issues, may find this an interesting form of cardio; you can always use DBs in place of the KB as well, and of course, lighten the load to prevent any pull on either leg, depending on pain movement limitation involved etc.
This can probably also be performed safely with a straight leg, if required.
Give it a try or use it to adapt another exercise in a similar fashion, if you are getting around a leg injury of some sort.
Comment beneath the vid:
I strained my hamstring maxing out on the deadlift about 3 days ago. Kettlebell swings and snatches are out for a for a few weeks since this places a balistic stretch on your hamstrings. So, I switched to a seated snatch until this thing heals. This way I can still get some snatch work in and let this heal at the same time.