Breaking news: Hill repeats are good for your 5Kby Ryan on Tuesday, April 2, 2013 (3 comments)
Hill repeats will of course help if you're racing here
Well, maybe not exactly breaking but a recent study backs up what we've known for some time. It also adds to the picture a bit.
This study found that hill repeats of any kind improved a runner's 5K performance by about 2%. That's a pretty significant number. For a 20 minute 5K runner, 2% would be a 24 second improvement.
What I found interesting here is that they looked at repeats at different intensities and how that affected running economy and 5K performance. The result was that the highest intensity hill repeats improved running economy the most but, to quote the author, "there was no clear optimum for time-trial performance". In other words, while running economy improved most with the highest intensity hill repeats, other factors played into making 5K performance gains similar across all intensities.
What to take from this? First, hill repeats are good. No news here. Second, high intensity repeats are great for running economy. This shouldn't be a huge surprise. We've known that short bursts of high intensity work are good for running economy already. That's why we all do strides, even marathoners. Many runners would already at times take those strides to a hill to get a little more intensity. Third, there are other benefits to longer repeats. Again, we already knew this. That's why hill repeats have been popular for decades.
So why am I writing about something that just tells us what we already know? First, it's always good to make sure the science confirms what you already believe. Second, it never hurts to remind ourselves of what we've already known. We all know strides are good for us but I know I've forgotten this lesson at times and gotten away from doing strides. Have you gotten away from hill repeats? Maybe this is an opportunity to consider whether it would be a good idea to add them back.