Anyone use HR Zone training with running?

LisaGNV

I'm an experienced runner (yet it still feels weird to type that) and in the past have always trained without a real training plan. Interval run/walk with weekly long run mileage increases at reasonable rates. I'm currently recovering from an injury (hoping to be cleared to run in April) and have been doing some research on heart rate zone training with the theory being "stay in zone 2 and your legs will eventually run faster and faster to maintain that zone the more efficient you become." Of course there's way more to it...

Anyone have any experience with this type of training? Tips, suggestions, cautions???