Cardio dilemma
Right, I usually get my cardio by running to the gym (I'm in training for the great north run), but I'm wondering which would be better cardio:
Gym 1 is about a mile away from my house. I could sprint to/from there.
Gym 2 is further, and my typical route there is about 8km, which I run there, and about a 3km route back.
Or C, just for Ross - drive to gym, and do HIIT on the rower.
Basically my question is, is sprinting a considerably shorter distance going to be as good a workout than plodding along for 8k? I know I can run 13 miles, so the training benefit isn't really an issue. I realise I'm going to be told that I shouldn't be doing that much cardio on the same day as weights, or that I should be doing about 20 minutes afterwards
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