“Running effectiveness is the speed-to-power ratio how effectively one converts power to speed,” Palladino added. Your running efficiency (or more accurately: “effectiveness”) also plays a big role in how hard you’re working. It’s also important to note that when an athlete runs, there is a lot more going on with each step-unlike cycling where the exact power you put out is all of the power that makes you move. “However, run power may reach technical limits in soft sand, soft snow, very icy/slippery surfaces, severe grades (>20%), and very technical downhill trails.” “Run power can be used very effectively (better than pace or heart rate) in a very broad scope of use cases,” Palladino said. We’ve also had relatively consistent success with on-watch power meters from Coros and Polar. For his athletes, Palladino prefers the Stryd footpod-based power meter due to its testing.
Accuracy might take a hit on this method, especially if you’re switching between power meters, but consistency over a longer period of time is good enough.īoth methods require a smartwatch or smartphone to read the data in real time. Second, and more common, are running power meters that use a footpod or in-watch sensor and a combination of accelerometers, GPS, and barometric altitude-alongside some super-complex math-to make a pretty good guess. This is more similar to how a cycling power meter works, but it’s important to note that just because both use strain gauges to some extent, they’re still not apples to apples. First, there are insole-based power meters, which actually measure the force generated with each footstrike via strain gauges. Section divider How Does It Work?ĭevices meant to measure running power are broken up into two camps-and each use very different methods. But it’s not as simple as a cycling power meter, either. In other words, much like a cycling power meter, a running power meter helps keep your output numbers objective in the face of everyday external conditions. “Further, power facilitates ‘corrections’ of targets for heat/humidity/altitude.” “Precise power targets for training and racing execution can be applied across more varied terrain and wind conditions than other methods of quantifying effort,” said coach Steve Palladino, who uses power extensively with his athletes and as the head coach of the Palladino Power Project. Running with power gives you a more absolute number that factors in how steep a hill is (which is good) but also ignores your fatigue levels (which can be bad). Much like cycling with power, running with power is a way to remove variables from your workout: pesky environmental things like wind and hills that can affect your pace per mile, or physiological things like nutrition, sleep, and cardiac drift that can affect heart rate.
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