One of the key principles for any type of athletic conditioning is recovery. You have to give the body a chance to make adjustments and repair itself after you stress it. So it's typical to see an easier week about once every four weeks on a training plan.
No exception here. I've been doing a lot of base training at targeted heart rate zones -- typically in the extensive endurance zone, with some step ups into the intensive endurance zone. (roughly zone 2 and zone 3 in most plans.) Nothing too long so far -- my bikes are peaking out at around 2 hours and my weekend runs at 10 miles. But this weekend I'm reaping the benefit of the easy week -- no workout today!
Back at it next week, then my base training period wraps up. Going on from there, the biking will start to pick up, and hopefully the weather will continue to cooperate. Only about six weeks now until the Belmonte 25K trail run, though I might shoehorn in the Martha Jefferson 8K before then -- it's a popular early season tune up on a very tough downtown C-ville course.
Swim -- 2:25, 7250 yards
Bike ----3:00, 54 miles
Run -----2:50, 20 miles
Totals -- 8:35