Fitness Friday: Your IRR
We made it to Friday! We survived another week! I’m back on Fitness Friday posts too! Since I mentioned that I’m in finance earlier this week, I thought bridge fitness with finance today. Internal rate of return, or IRR, is a metric that’s frequently used within finance. You can certainly Google it and find twenty different ways to calculate it. But at its basic definition, the IRR is the rate at which a project breaks even. Anything above your IRR, you generate a positive return. On the converse, a result lower than your IRR generates a negative return.
In applying the principles to fitness, I like to think each time I do a workout, I compare it to my internal IRR. Unlike in finance, it’s not a percentage, but a mindset. For example, this morning, my friend Niall was telling myself and another friend Kim about how he didn’t get much sleep the night before. Niall and I have been early morning risers for quite some time, and usually we both push hard at 6AM. But both of us know that some days, we just don’t have it.
We both looked at the workout: rowing/”clusters”/muscle-ups. In doing a quick IRR on what the return would be by doing the scaled version versus the proscribed weights and movements, we both settled on the same conclusion. By doing it scaled, our workout would give us a better return than if we struggled with the proscribed weights. The baseline we hold ourselves accountable to is keeping ourselves healthy and injury-free. Doing a workout that’s putting all of that at risk just isn’t worthwhile.
As we grow as athletes and as we push ourselves to higher thresholds, your IRR will naturally increase. What shouldn’t change is how we assess whether certain things are better or worse for our fitness. Keeping a good frame of mind on how each movement plays into our ability to show up the next day is the first step to keeping it safe. For today’s Fitness Friday, hopefully you know what your IRR is and how to calculate it against each workout.
Happy weekend friends!