The Secret of Running

The new Stryd with wind detection: evolution and revolution

In the summer of 2019, the new Stryd was launched. This new Stryd has been improved on many points. The most striking improvement is the "wind port". This is a small hole in the bottom - between the charging contacts - so that the Stryd can also include air-resistance

The Secret of Running

Efficiency & the tale of three races

In our book (www.thesecretofrunning.com [https://blog.stryd.com/p/d3c5e5bd-b5f8-416c-a5c1-d619d526384a/www.thesecretofrunning.com] ) we have discussed the Energy Cost of Running (ECOR) in several separate chapters. First, we have shown that on a level and hard course, the ECOR is typically 0.98 kJ/

The Secret of Running

How to analyze a 10K race: a case study

Earlier, we have analyzed the Stryd power data during the 7Hills race ( https://blog.stryd.com/2019/12/17/an-in-depth-analysis-of-a-15k-race-seven-hills-run/ [https://blog.stryd.com/2019/12/17/an-in-depth-analysis-of-a-15k-race-seven-hills-run/]) and the

The Secret of Running

The cost of running up and down hills

In our book (www.thesecretofrunning.com [https://blog.stryd.com/p/65a6baea-0264-40b0-8a09-1ee1692f6d07/www.thesecretofrunning.com] ) we have discussed the Energy Cost of Running (ECOR) in several separate chapters. First, we have shown that on a level and hard course, the ECOR is typically 0.98 kJ/

The Secret of Running

Impact of illness and injury on Critical Power

Some 2,5 month ago Hans ran the 15 km 7HillsRun in 59:34 and with an average power of 244 Watt (or 4,21 Watt/kg, which is actually a better parameter). We analyzed the results in a paper (see https://blog.stryd.com/2019/12/17/an-in-

The Secret of Running

Testing Stryd in the laboratory

The performance lab of a Sports Medical Center offers various tests. In this paper we elaborate the testing of the aerobic system of a runner on a treadmill. To test the aerobic system the load is step-by-step increased by increasing the speed of the treadmill. Such a test

The Secret of Running

An in-depth analysis of a 15k race | Seven Hills Run

The Seven Hills Run is an annual 15 km road running race held in Nijmegen, the Netherlands (https://en.wikipedia.org/wiki/Zevenheuvelenloop). It has grown into one of the largest road races in the Netherlands with 40,000 participants. In the 2010 edition, Leonard Komon improved the official 15

The Secret of Running

A basic analysis of a 15k race | Seven Hills Run

The Seven Hills Run is an annual 15 km road running race held in Nijmegen, the Netherlands (https://en.wikipedia.org/wiki/Zevenheuvelenloop). It has grown into one of the largest road races in the Netherlands with 40,000 participants. In the 2010 edition, Leonard Komon improved the official 15

The Secret of Running

Run efficiently to lower the energy cost of running

In our book (www.thesecretofrunning.com [https://blog.stryd.com/p/f03acb38-92ed-4708-a251-e852c132ccd4/www.thesecretofrunning.com] ) we have discussed the Energy Cost of Running (ECOR) in several separate chapters. First, we have shown that on a level and hard course, the ECOR is typically 0.98 kJ/

The Secret of Running

How to use Stryd power to calculate your VO2

In our book (www.thesecretofrunning.com [https://blog.stryd.com/2019/12/06/the-physiological-differences-between-trained-and-untrained-runners/www.thesecretofrunning.com] ) we have described our initial treadmill research on 14 test runners in the physiological laboratory of the Dutch Sports Medical Center SMA Midden Nederland. We were

The Secret of Running

The impact of speed on running economy

In our book (www.thesecretofrunning.com [https://blog.stryd.com/2019/12/06/the-physiological-differences-between-trained-and-untrained-runners/www.thesecretofrunning.com] ) we have described our initial treadmill research on 14 test runners in the physiological laboratory of the Dutch Sports Medical Center SMA Midden Nederland. We were

The Secret of Running

The impact of cadence on running economy

In our book (www.thesecretofrunning.com [https://blog.stryd.com/2019/12/06/the-physiological-differences-between-trained-and-untrained-runners/www.thesecretofrunning.com] ) we have described our initial treadmill research on 14 test runners in the physiological laboratory of the Dutch Sports Medical Center SMA Midden Nederland. We were

The Secret of Running

The physiological differences between trained and untrained runners

In our book (www.thesecretofrunning.com [https://blog.stryd.com/2019/12/06/the-physiological-differences-between-trained-and-untrained-runners/www.thesecretofrunning.com] ) we have described our initial treadmill research on 14 test runners in the physiological laboratory of the Dutch Sports Medical Center SMA Midden Nederland. We were

The Secret of Running

What are the human limits of running power?

In our book The Secret Of Running (www.thesecretofrunning.com [https://blog.stryd.com/2019/12/06/what-are-the-human-limits-of-running-power/www.thesecretofrunning.com] ), we have described our unified theory for the performance in running and cycling. Our running model is based on the premise that

The Secret of Running

Why is racing with power superior to racing at pace?

Traditionally, runners use pace as a surrogate for their effort during racing. Theoretically, the effort during running is defined by the power of the ‘human engine’. In our book “The Secret of Running" (www.thesecretofrunning.com [https://blog.stryd.com/2019/12/06/why-is-racing-with-power-superior-

The Secret of Running

How to analyze running power data

Many books and papers have been written on training plans, including such aspects as training goals, training modes, training paces and training mileage. Running with power provides us with new tools to optimize the training in real time and on a daily basis. In this paper we will discuss the

The Secret of Running

Use less energy while running at a constant speed with the help of LSS

The holy grail of distance running has always been to use less energy and oxygen at a certain speed. The recent breakthrough of power meters raises the question whether we can use the new running metrics to learn how to run smarter, more economical and faster? In recent running research,

Feature Release

Stability firmware update for new Stryd | Firmware 2.1.3

Today, we have a stability and bug fix update for the new Stryd. We encourage all new Stryd owners to update to this new firmware for a more stable Stryd experience. How to update * Update instructions for Android>> * Update instructions for iOS>>

Feature Release

Huge update brings Android one step closer to iOS

Dear Stryder, We have a major update to our Android app that delivers a significant amount of the core functionality of the iOS app to Android. How to update: You can access this new feature set by downloading the latest version of the Android app from the Play Store. Click

Feature Release

Air Power is now available in offline sync | Firmware Release 2.1.2

Today, we have a firmware update for the new Stryd. We highly recommend that all Stryders update to this new firmware. This update adds Air Power to the offline sync activity file and improves the stability of Stryd. Update instructions for Android>> Update instructions for iOS>>

Feature Release

New Stryd Update Names Your Runs For You

If you made it to this page, you likely run a lot. And if you are who we think you are, you probably run more frequently than 90%+ of the people on Earth. Let's just do some quick math. If you are running nearly everyday, that is over

Feature Release

Run with "laser-precision" consistency with new Stryd update to your Garmin + another much demanded feature!?

"MUST READ" NOTE: Stryd Zones is now the go to data field for Stryd. We highly recommend that all Stryders move over to this new data field. If you are a Stryd Power data field user, remove this old data field & please install Stryd Zones. You should

Feature Release

Android Update: Accelerate running gains with Stryd’s recommended balance of stress & rest

Running Stress Balance in now available on the Stryd Android App Now, Stryd can help you hit the training sweet spot with the Running Stress Balance feature. You will know if you are resting enough to extract maximal benefits from your recent training. This give you the best chance at

Feature Release

Pinpoint your difference-making runs with record-setting speed in Stryd’s latest iOS app update

This update turns Stryd into a data discovery machine with speed and filtering like none other. With blazing fast speed and intuitive navigation tools, you will flip from analyzing your record-crushing race to the lung-busting workouts that made it happen. Prepare yourself to discover connections in your data

Newsletter

Dr. Kristine Snyder of Stryd is a Consultant for the Scientific Team Supporting Eluid Kipchoge’s Attempt at the INEOS 1:59 Challenge

Eliud Kipchoge will be the center of the running world this week as he participates in the INEOS 1:59 Challenge as he attempts to be the first person to run a marathon in less than two hours. Dr. Kristine Snyder, Stryd’s Human Movement Algorithm Designer, used her expertise