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Lumo Run

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{{DISPLAYTITLE:Lumo Run Review}}
'''Update: Lumo has gone bankrupt and as far as I can see their sensors are effectively bricked. Unlike BSX, who made some of their software open source, Lumo has just disappeared. '''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 Oscillation]] (bounce), braking, pelvic drop, and pelvic twist. 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. It's this 9-axis sensor that allows some of the potentially interesting metrics to be gathered.
* '''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 [[Vertical Oscillation]] 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.
* '''Braking'''. Lumo measures how much your torso slows up on each stride, and recommends that it should be under 1.65 feet/second. I'll be curious to see how this compares to [[RunScribe]]'s foot braking and [[Wahoo TICKR Run]]'s smoothness. (I'm not sure why this is measured as a velocity rather than acceleration.)
* '''Drop'''. As you run, your side of your pelvis that is supported by your leg tends to move up and the other side down. This pelvic drop might be a waste of energy, so Lumo recommends it should be under 12 degrees.
* '''Rotation'''. As your support leg moves backwards, there is a tendency for the pelvis to twist so the supported side if further back and the side with the leading leg is further forward. Tight hip flexors make this a lot worse. Lumo recommends less than 15 degrees.
* '''Ground Contact Time (future)'''. Lumo are planning on adding this metric, along with stride length. (It's not clear why they can't calculate stride length from pace and cadence.)
Lumo Run is available for <jfs id="B01K22SOYE" noreferb="true"/> which is a comparable price for a 9-axis device. (Early versions of the Lumo have a fault where light causes a bad battery reading, so you have to insert it into its holder the other way round.)
=Recommendation=
I think that the Lumo has potential, but needs more development.
* There are some audio coaching messages, but I found those both annoying and useless. These audio messages are no substitute for real time data.
* There's no option to export the data for analysis or importing into other tools. There's also no web interface, so you can only view your data on your mobile phone.
* There's no Lumo finally added a "treadmill mode"; you can use to their app, so it on a treadmill, but disables GPS is still used on your phone, which is less than ideal.
=Gallery=
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