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From Fellrnr.com, Running tips
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{{DISPLAYTITLE:Lumo Run Review}}
Lumo Run is a [[Running Sensors| Running Sensor]] that mounts on the rear waistband of your shorts. It measures a number of aspects of your [[Running Form]], including [[Cadence]], Vertical Osculation (bounce), breaking, pelvic drop, and pelvic twist. Unfortunately, you not only have to run with your smartphone for Lumo to work, but there's no display of any of the data in real time, not even Cadence. You have to wait until after your run to get summary data, and there are no graphs of how the metrics changed over the course of the run. You can see the metrics for each split. There are some audio "coaching" messages, but I found those both annoying and useless. There's no option to export the data for analysis or importing into other tools. Lumo uses a 9-axis sensor, which is a 3-axis accelerometer plus a 3-axis gyroscope and a 3-axis magnetometer allowing it to sense movement far better than sensors that rely on the accelerometer alone. However, there's no "treadmill mode"; you can use it on a treadmill, but GPS is still used on your phone, which is less than ideal. It can provide the following metrics:
* '''Cadence'''. I believe [[Cadence]] is the single most important running metric, and while Lumo seems accurate, the lack of real time data is especially annoying here.
* '''Vertical Oscillation'''. This is how much your torso moves up and down with each stride. It is generally believed that less Vertical Oscillation is a better, but I suspect that this is an oversimplification. Some are part of a runner's vertical movement is likely to be elastic in nature (consider a bouncing rubber ball), some of the vertical motion will be while the runner is airborne (ballistic), and some of the vertical motion is the deceleration as the runner lands. So it seems likely to me that excessive vertical oscillation is bad, but it's a tricky to know what excessive is likely to be, or how to correct it. The measure of Vertical Oscillation (which Lumo terms "bounce") is similar to other devices and I will perform some verification using an objective measure in the future. Lumo recommend less than 3"/7.6cm of bounce.
