Punchbag Work

Normally I would use my punchbag for warming up before my weights session, but from this morning I'm turning into a form of cardio straight after the session.

To get in the sort of time I would when running, I'm trying out 30 x 45 seconds on the punchbag with 15 seconds rest in between each set.

Needless to say, I didn't manage to get through the 30 sets today, but hopefully it'll be a different story by the end of the week.

Either was still totally shattered after, so should be on the right track.