Runners' World: Ticker Taping?

How Exactly Does a Fitness Tracker Monitor Your Heart Health? 

We tapped an expert to break down how a heart rate monitor works—and who should invest in one. JORDAN SMITH/Runners' World.com/Sep 18, 2020 

Tracking your heart rate during workouts isn’t new, but heart rate tracking technology is rapidly advancing. Gone are the days of merely monitoring your beats per minute; the latest trackers can now alert you to an irregular heart rhythm, and some are even rolling out low-range VO2 max tracking. 

With more younger people suffering from strokes, and more reports of cardiac arrests happening during exercise, it might be a good time to consider upgrading your tracker. We tapped experts to find out just how much you should rely on your new tracker’s heart-monitoring software...

(Link to article)

RW: 'Cause It Bores Me?

Is Running on a Treadmill Harder or Easier Than Running Outside? 
New research debunks some persistent ’mill myths.
Hailey Middlebrook/Runners' World Online, Mar 22, 2019

 - A new meta-analysis published in Sports Medicine analyzes 34 studies that compare the physiological, perceptual, and performance differences between running outside and running on a treadmill.
- The research concludes that when runners speed up on a treadmill, they have higher heart rates and report feeling more fatigued than when they run the same speed on land.
- Runners display more endurance running outside than on a treadmill.

In a new research published in Sports Medicine, scientists from Australia sought to answer these questions by investigating the differences in running performance on a treadmill versus real ground. To gather this data, they analyzed 34 studies that compared treadmill runs to “overground” (outdoor) runs. Twelve of the studies asked participants run on a 1 percent grade on the treadmill, while the others used higher or lower inclines.

The researchers were focused on three key measures of comparison: physiological (how hard the runners’ bodies were working to maintain pace and finish their workouts, measured by heart rate, blood lactate levels, and VO2 max), perceptual (how hard the workout felt for the runners), and performance (how the runners performed in time trials).

 
(Link to article)

Outside: How To Turn Dreadmill To Treadmill?

The Science Behind Your Favorite Workout Playlist 
Mollie Bloudoff-Indelicato/Outside, Jan 31, 2019

...For years, scientists have studied the link between music and heart rate. In 2005, a team of researchers found that listening to music with a fast tempo could speed up heart rates, while a leisurely tempo could slow them down. Furthermore, crescendos—where the volume of a song gradually rises—can increase heart rates, while decrescendos have the opposite effect, according to a small study from 2009 published in the journal Circulation. Although scientists aren’t certain why and how these interactions happen physiologically, relaxing music could be used to maintain a level of serenity for lower-intensity activities like yoga. “I always set my metronome at 60 [bpm] because it’s lower than the normal heart rate, and it helps me relax,” says Rodney Garnett, an ethnomusicologist at the University of Wyoming. “Something that has a slower beat gets a different response than something that has a fast beat..."

(link to article)

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...

(Link to Article)