Hi! Training for ToughMudder SoCal and it's been a while since I've really worked out .... what should I do to improve cardiovascular endurance??
What what what...where in SoCal. I want to go too. Where can I get more info on this?
Muchas Gracias. But Temecula is a longs way for me. But I got to try it.
Once again, thanks.
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