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=Garmin's Running Dynamics=
''Main Article: [[Running Dynamics]]''
Many newer Garmin watches ([[Garmin 620| 620]], [[Garmin 920XT| 920XT]], [[Garmin Epix| Epix]], [[Garmin Fenix 3| Fenix 3]], etc.) combined with a special chest strap will provide extra metrics that can give insight into your Running Form. The Garmin watches will provide these metrics in real time, allowing you to see the effect of changes in your form. These metrics include:
* Vertical Oscillation. This is how much the 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. It's sometimes a thought that a greater vertical oscillation will result in greater impact, but this is not the case. Impact is how quickly you decelerate, so landing hard can result in less vertical movement but a shorter, more intense deceleration. It's even suggested that greater vertical oscillation will result in more braking force, but that does not seem reasonable. I believe that some are part of a runners 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 vertical 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.
[[File:RunningDynamics.jpg|none|thumb|300px|Garmin's Connect web site shows the metrics gathered using the HRM4 and [[Garmin Fenix 3]].]]
=RunScribe=
''Main Article: [[RunScribe]]''
[[RunScribe]] is a small pair of [[Footpod]]'s that provide a wide variety of [[Foot Strike]] metrics. These include things like Impact G's, GCT, Braking G's, [[Pronation]], and more. I love the detailed metrics that are provided, and the insight into my running form, and possible imbalances. The main disadvantage with the RunScribe approach is that the data is not available during the run, and has to be analyzed afterward. You can read about my testing at [[RunScribe]].
[[File:RunScribe.jpg|none|thumb|500px|An overview of the data from RunScribe]]
=MilestonePod=
''Main Article: [[MilestonePod]]''
[[MilestonePod]] is a vastly cheaper alternative to RunScribe, and while it doesn't provide the detailed analytics, it's a great value for money. It's also a cheap and effective way of keeping track of the mileage of your shoes, and is worth its price for that feature alone. Like [[RunScribe]] the MilestonePod doesn't provide real-time metrics, and you have to analyze the results post run. You can read about my testing at [[MilestonePod]].
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[[File:Moxy Test 20150823 0825.jpg|none|thumb|800px|Here data from a Moxy test, showing a clear decline in SmO<sub>2</sub>.]]
=BSX=
''Main Article: [[BSX]]''
The [[BSX| BSX Lactate Threshold Monitor]] attempts to estimates your [[Lactate Threshold]] by measuring the oxygen saturation of the blood within your muscles. The results of the first version were extremely disappointing, but I have not had the opportunity to fully test the updated hardware. However, even if the BSX works perfectly, its value is limited by the relative ineffectiveness of [[Tempo Runs| Lactate Threshold Training]]. You can read about my testing at [[BSX]].
[[File:BSX1.jpg|none|thumb|x300px|The dashboard view of the BSX app, showing previous results.]]
=Sensoria=
''Main Article: [[Sensoria]]''
The [https://www.amazon.com/Sensoria-Fitness-Socks-and-Anklet/dp/B019RWCWCA Sensoria smart socks] are made of materials that can detect pressure changes under your foot and transmit them back to anklet that communicates with a smart phone via Bluetooth. The [[Sensoria]] anklet also includes accelerometers to enhance the data gathered from the pressure sensors. While these socks are interesting, unlike a true pressure plate that has a matrix of pressure sensors, the socks have just three sensors, one in the heel and two in the forefoot. <jfs id="B019RWCWCA" noreferb="true"/> for a pair of left & right socks, plus one anklet. Note that the socks last for 60 washes and cost $45, which works out to $0.75 per run. That might be cheap to a triathlete, but to most runners that works out pricy. Read [[Sensoria| my full review of Sensoria]].
<br/>(Sensoria also make a tee that shirt includes an embedded Heart Rate monitor strap, you can plug a standard heart rate transmitter module into. They sell a dual Bluetooth/Ant+ transmitter, as well as working with the Polar H7 and some Garmin modules. )