CTS: Heart Rate? Good. Now Ignore It.

Why Heart Rate Is Not a Good Training Tool for Ultrarunning
Jason Koop/CTS, May 18 2017

If you are going to use interval training to accumulate time at intensity and target specific areas of your fitness, you need a way to figure out how hard you are working. In some sports this is simple. As mentioned earlier, a cyclist with a power meter can directly measure workload in watts, determine how many watts he or she can produce at lactate threshold, and then create intensity ranges based on percentages of lactate threshold power. Ultrarunners don’t have it so easy. For a long time, runners have tried to use heart rate to gauge intensity, intensity ranges based on percentages of lactate threshold heart rate or the average heart rate recorded during a 5K time trial. Others have used pace ranges based on time trials or goal race paces, or a combination of heart rate and pace ranges. Prescribing intensity based on either heart rate or pace is notoriously difficult in ultrarunning, and after trying all manner of methods, I found the greatest success in a remarkably simple, nontechnical, yet scientifically accurate method: rating of perceived exertion...

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MapMyRun.com: Bum Glutes?

5 Must-Do Glute Exercises for Runners and Cyclists
Shane Barnard/MapMyRun.com/January 15, 2016

Glutes (aka butt, bottom, backside, booty or tush) hold a lot of power, and strengthening them can help you become a better runner, cyclist, walker, jogger, skater, swimmer, dancer, squatter…you get the idea, right? Strong glutes are a win-win for your body because they help take pressure off of your knees and back. When your glutes don’t work properly, other muscles have to compensate to do the work. This can result in discomfort and injuries...

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