About 45 days ago, during the ANT seminar, I was fortunate enough to experience a physical fitness test with the MOXY muscle oxygen sensor for nearly an hour.

In fact, I saw this kind of sensor in the playground about a year ago, and I also played it to make it work. But when founder Roger Schmitz asked me to spend some time researching how it works with multiple sensors and data channels in a structured training instance, the application can calculate the data in time, but the problem is not understand.

Many people may ask how MOXY compares with the BSX device. To be honest, this problem has also plagued me for a whole September. Although it may seem like a simple question, its answer is more complex and spans multiple areas. In the next few paragraphs, I will try my best to explain it in the clearest way - although it can be challenging. Ok, let's get started!

Equipment introduction:

When it comes to unboxing MOXY devices, they put the cake in a high-end box that used to be equipped with fitness equipment. I can only assume that someone wants to use the Cuban cigar box that the US government has seized. This is a good deal. Don't worry, it has a good protection and adds some luxury and sway.

In addition, they have a good "mount" (because of the lack of better terminology), which is the handbag that it can carry with you. What's more, when you carry and maintain it, you need to use stocking.

As for the device itself, MOXY is actually an optical sensor, albeit a little fat. But it doesn't matter, you don't need to wear it on your head or chest. It can be read and analyzed by emitting light. A slightly larger spot on the top emits near-infrared light, and a near-infrared detector on the bottom receives light from your muscles.

The difference in dot size is due to the fact that there is a simple heart rate belt transmitter that is the same length but deeper and wider. There is also a tiny USB port on the bottom for charging and downloading. It is waterproof, but it is still recommended to put it in a small plastic bag (see above) to further protect it.

MOXY is usually worn on the thigh, although it can also touch the muscles where you stick it. In the thigh unit, they will use a molding system they have made, and then attach some stickers. Specifically, you can see the back of the sensor below:

The reason for using a black rubber case is that, like other optical sensors, it cannot be exposed to external light. Just like the Darth Vader style, it is even more sensitive to ambient light than a typical optical heart rate sensor. Therefore, we must ensure that no external light enters.

In my case, they put a black rubber case on the MOXY sensor and placed the sensor on the thigh. Next, put the bike shorts down to make sure the sensor is in a darker environment.

When I was testing, in order to increase the fun, they also placed a sensor on my arm to see when my arm was placed in different positions, the muscle was working, and there was on the thigh. What is different. It can be seen that when I just put the bicycle pants down, it shows "Alpe". Next, the Scosche optical sensor starts working (can be seen from my bike pants and braids).

Having said that, it is time to explain how MOXY is measured. In this example, he measured the oxygen saturation of the muscle, also known as SmO2, which made MOXY more accurate in interpretation, and they recorded:

“This is just the percentage of hemoglobin that carries oxygen in muscle tissue. Hemoglobin is a molecule in red blood cells that accurately transports oxygen from the lungs to various parts of the body. SmO2 measurements occur in muscle capillaries. in.

This is where oxygen is consumed. SmO2 can be considered as a balance of increased demand, when the heart has not had a chance to accelerate, and the blood pressure in the muscles will rise in the future. SmO2 drops rapidly in this case.

When you warm up, your heart rate will accelerate and your blood pressure will rise to twice the usual level. When you stop training, the oxygen demand suddenly drops, but the heart rate is still rising, the blood vessels are still expanding, and at this time, the rapid rise of SmO2 can be observed.

In general, the more intense the muscles, the lower the SmO2 will be. ”

So essentially, when you look at your body, especially your muscles, react over time. The numbers you get will be a bit like test scores. For those interested, you can go to the PDF of their website to learn more about how it works.

Finally, all the information will be transmitted from this device in the form of ANT+.

The two different ways of this unit are based on ANT+. The first is assumed to be an ANT+ speed/cadence sensor or an ANT+ heart rate curve. In these introductions, it can propagate data through the standard channels of any module that supports ANT+. This means that you can easily collect MOXY data with a good Garmin FR305.

The second option is to use the new ANT+ myovascular configurator. If this is the case, you will need an app to understand and record/display the configurator files. These are listed here, but the main ones are peripedal and perfpro (bicycle coach app), then IpBike (Android software). IpBike is very convenient, because he only needs the Android system phone, it is more convenient than the bicycle coach application (ANT+ is supported by many Android devices). At the same time, the bike instructor application is also very good, it can customize the test for you.

There is also a last option, you can simply record the data after downloading through the USB interface.

Test (and pain):

Do you know what will sound like a good idea before there will be one? It is almost always the case, but when it really comes, I still feel terrible. The BSX test I did at Vegas in the past few weeks seemed like a happy time, but when they told me that I had to take blood every few minutes, I didn't think so.

The test structure is ready for me, and my work is mainly to follow. We plan to test with a random coach and a random bike with ANT+. However, when two random things are added together, they are not always synchronized. In this case, we can only know that the bicycle without the pedal can not specify the speed of the power when working with the coach/tape/wheel/power meter/pedal. Don't worry, I just think so rudely.

Usually, you want to use automatic training like Peripedal - for example, Wahoo KICKR. In this case, you can set the test time in advance and you can set a series of steps when you go beyond my FTP. In my case, we set a small goal, but it was a little out of control in the last few minutes. This is my step (after a series of important warm-up exercises):

2x138w

2x205w

2x280w

2x350w

2x415w

2x480w

Each step must last 5 minutes of pain and rest for 1 minute between the two steps. Repeat each step twice. So, doing it twice every step is enough to make you die once.

These are all based on my FTP (function threshold – the maximum power you can afford to keep for an hour), I know the time will be advanced. Otherwise, the coach will give you a set of power steps. In my FTP, they use 315 watts of power, and slowly build each step from here. The only challenge is that the altitude is not calculated, and this just affects me.

Anyway, we have started testing:

As you guessed from the above steps, he started quite easily. This is the design. Our goal is to understand your reactions at different levels.

The target setting for the test was PeriPedal, but I stopped at the BKOOL training mode stage. Unfortunately, third-party applications can't control the BKOOL training mode, so we ended up using the BKOOL feature option, and then I was riding on the bike to keep the power on the output.

Below, you can see the first 5 minutes of the steps. When it is less than 300W it is very simple, even if it is not simple, it is not easy, at least sustainable. You can see the values ​​of myoglobin and hemoglobin saturation along the bottom.

Ifor Powell, he created the Android app that IpBike happens to need, and he is also tracking the value of this app. This app can only be used on mobile phones to record muscle oxygen data (and display activity patterns).

Eventually, you enter the part of the test that started to hurt a bit. This is a 5 minute step, and the first piece is easy, and once you start 350w for 5 minutes (at 4000ft), it starts to hurt.

Of course, everyone in the room felt that my pain was ridiculous. I am doing the test, just as the "product" warms up in the ANT+ system and waits for the final package. You will only remember that all the chief engineers around ANT+, and sometimes the company founders are here. So basically, everyone has the products I need to experience. . . They all stopped to see me suffer. Obviously it is to recover the results.

Going back to the test itself, there is a 1 minute break between each step. At this point they can see how quickly you restore your muscle oxygen levels.

Of course, this situation assumes that you can pass the test completely. In some cases, the test will defeat you, which is a perfect punishment. This is who I am. After nearly an hour of testing, the first 450W of 5 minutes began to be just half, I will never persist and be defeated.

But I think if I don't wear running shoes, my car is on the ground and my performance will be better than this, but it is also good, it let me know my ability and starting point. In this case, I have a better idea of ​​how I work on this platform.

The above is the final chart of my Peripedal test results in real time, through which we can analyze the CSV format. Note that Peripedal has done a lot of work, we just used a small part of it. Tomorrow I will continue to play its role on the new platform.

data analysis:

Next, you will be in the "fun" section, or, in some cases, you can take fewer detours. This is the significant difference you see in a product, just like the BSX of MOXY. The BSX in this case is designed to give you a complete set of recommendations -- a complete automated report and specific training instructions. For MOXY, however, it is designed to show the level of training, and their goal is to provide you or others with some raw data that can be used.

First, they showed me some pictures showing the elite driver's reaction to the 5-1-5 test (one test for 5 minutes, 1 minute break, 5 minutes test, and so on). In the image above, you can see that he needs a little time to stabilize, and in each set of tests you will see a decrease in muscle oxygen levels in groups. You can also see how it recovered to the driver's previous level.

Next, it's my data, the first time I'm drawing with a power component:

However, let's remove the power components to make the scope of the chart larger and more prominent.

It's easier to see now. You can see that my muscle oxygen level (%) is steadily decreasing, but after my last incomplete attempt, you will see it suddenly drop to the end. This is the specific decline they are really looking for in the test.

But look at this: this is the MOXY sensor on my arm (near shoulder arm). As you can see, there is always quite a small fluctuation until the last set. It is still unclear whether this fluctuation is due to frequent interactions with my coach (eg station/mobile/etc.) or the result of my physical struggle. However, this is very interesting.

So how do you deal with this data? Well, there are many ways to use it. First, it can be used to determine which part of your body is not healthy. A group of high-end/excellent athlete coaches use MOXY data for training.

The second method of use is that the coach can use it to create areas (such as electrode areas). The figure below gives an example (not the area I created, just an example).

The areas identified above are:

Green (AR): Active recovery

Yellow (STEI): structural fatigue strength

Orange (fly): endurance strength

Red (HI): high intensity

Of course, the coaches may call them another name (such as Zone 1, 2, 3, 4), but the structure is like this. The above areas represent the various events you are training (as usual). To the deeper, you can do a steady-state motion of more than 50 minutes with a specific power and oxygen level in a particular area. This theory should remain the same.

Today's coaches use MOXY to delve deeper into areas based on human resources and power to effectively reduce near-infrared spectral data. It can be true. But there is still a reality that most people in the world can't tie a MOXY sensor up to $1,000 when riding and running, not to mention battery life of just 6 hours. So often it is a regrettable result.

However, MOXY will tell everyone that its data is completely open to interpretation and research. It is not yet capable of providing muscle oxygen sensor data. The previous toe-clamp pulse oximeter failed to show the change in SmO2 because they tested the specific part of the athlete's body, that is, they tested the wrong place. Just like the other sensor data you see attached to my arm doesn't change. In addition, MOXY sensors test deeper and more detailed information.

The last thought:

The technology is absolutely cool and has great potential in many areas. For example, instead of measuring the "effect" of something, it measures its direct properties or causes. While many other techniques focus on changes in measurement results, specific changes in oxygen levels in the muscle are measured by near-infrared. The same technique can be used to determine the exact time of recovery. Now, you may only want you to recover between two moves.

Of course, the most obvious challenge is that this thing is complicated. Not easy for most athletes to understand. This is a fundamental difference between what BSX aims to do and what MOXY is doing. BSX is looking for a holistic solution that gives you clear guidance; MOXY is using their equipment to enable coaches to guide athletes (or coaches themselves) based on very specific near-infrared spectroscopy data. MOXY is now very useful (already for a year or so), and BSX is almost for shipping. These two methods are not right or wrong, but the focus is different. In fact, you will find that the two companies recognize each other very well.

The coaching aspect is the core, which is why the price is $999. But BSX costs only one-third of the cost of riding and running, and it focuses more on the sports sector. However, MOXY can be used for any measurable muscle, of course, measured in different ways.

In this field, time is very interesting!

As always, thank you for reading, and please feel free to write down your questions, I will try my best to answer them. Even the answer is not my experience to answer.

(Note: I want to thank Ifor Powell, who is willing to take my camera, record my pain during the test, and get 449 photos. I am very grateful!)

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