Regain Cardio?

[Canwood]

Hey all,
I have basically a month or so until lacrosse season starts in my area. I haven't trained cardio since Sept, and I'll be running my ass off as soon as the season starts.
Question is:

What's the best method to regain lost cardiovascular capacity? Other than "just doing it", does anyone have any specific training methods?

 

[Zander1983]

Interval training. Keep it sports specific, with work and rest intervals being similar to what you would do on the field.

This is a good program that you could easily fit into any schedule, for field athletes such as yourself:
http://www.johnberardi.com/articles/training/madmax.htm

Also look into any of Coach Davies' work (www.renegadetraining.com).

I play 5-a-side soccer, and perform 3 cardio orientated sessions a week, and weights 4 times a week.

Two of my cardio sessions are grueling 400m workouts (http://t-forums.t-mag.com/readTopic.do?id=247258), and they kick arse.

The other is a 20 minute interval cycling session:
3 minutes warm-up
7 x 30 seconds hard, 90 seconds easy
3 minutes cool-down

There are lots of studies to back up that intensity is the key, as you can only improve your actual VO2 Max by a small percentage, and training your energy systems to function at that VO2 Max for the longest time possible, is much more important.