Minnow workout: uncomfortable

This workout should generate enough lactic acid to make you fairly uncomfortable physically and mentally, but it will make you tougher for those 100's and 200's on race day. Don't try it unless you're already in pretty good aerobic shape.

1. Warm-up

2. Secondary set

3. Main set (do 2 times with a 60-second break between)

4. Warm-down