In the Interval...

I am a fan of intervals.  What is not to like about a technique that gives better results in the same amount of time without a lot more pain and suffering?  We all need and want cardio fitness.  Intervals are a great tool for getting us there.

Let’s start with the basics:  interval training involves intervals (fancy that!) in which we work harder.  Classic interval last no longer than a minute, because that’s how long we can work at our maximum effort before we run out of ATP (sorry about the flashbacks to high school biology).  However, longer intervals still have benefits.

 

Sometimes intervals are built in to our workouts.  When we walk or run or bike outside, we discover that the world is not flat.  Those hills we have to climb?  Intervals!  We have to work harder to get to the top.

 

An easy way to build them in when we’re working out somewhere flat is the fartlek.  (If your inner twelve-year-old just snickered, we can be friends.)  To fartlek (heh), we look ahead on our path as we’re walking or running or biking or whatever and choose a landmark, like a big tree or a stop sign on the corner, or a purple house.  We go as fast as we can until we get to that landmark.  Then we choose another one and go at a recovery pace until we get there.  We continue on like that until the end of the workout.

 

Music also provides a great way to build in intervals.  A classic interval strategy would be to go at top speed during the choruses of songs and recover during the verses.  (Back when I used to watch football and had a spin bike in my living room, I’d use commercials as intervals and game play as recovery time.)  Another way to use music for intervals is to choose a characteristic (genre, type of singer, decade) as the trigger for an interval.  We can also choose songs that are our personal sprint songs; whenever those come up in the shuffle, we really amp everything up.

 

I recently learned about a new-to-me way to do intervals for those of us who keep track of things like lap time.  We note the digit of the hundredth of a second and use that, multiplied by 20, to determine how much rest we get before we go again.  So if we finish in a time that ends in .01, we get 20 seconds of rest.  A time that ends in .02 would give us 40 seconds.  A time that ends in .00, though, means we have to go again right now!

 

As always, we want to build up slowly and experiment.  Adding a single interval to a workout does have benefits.  We add another one when we feel like we can handle it.  Eventually, we can spend our whole workout alternating between hard work and recovery intervals (after our warm-up and before our cool-down, of course!).

 

Go play.