![Intervals, Thresholds, and Long Slow Distance: the Role of Intensity and Duration in Endurance Training Intervals, Thresholds, and Long Slow Distance: the Role of Intensity and Duration in Endurance Training](https://sportsci.org/2009/ss_files/image011.gif)
Intervals, Thresholds, and Long Slow Distance: the Role of Intensity and Duration in Endurance Training
![Intervals, Thresholds, and Long Slow Distance: the Role of Intensity and Duration in Endurance Training Intervals, Thresholds, and Long Slow Distance: the Role of Intensity and Duration in Endurance Training](https://sportsci.org/2009/ss_files/image005.jpg)
Intervals, Thresholds, and Long Slow Distance: the Role of Intensity and Duration in Endurance Training
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Episode 142: Exercise as a Drug for Mental Health and Longevity — Psychiatry & Psychotherapy Podcast
![Stephen Seiler on Twitter: "Here is a 3-minute video I made looking at intensity distribution and heart rate time-in- zone, using a typical recreational "athlete" as an example: https://t.co/VV3HxXG2yl" / Twitter Stephen Seiler on Twitter: "Here is a 3-minute video I made looking at intensity distribution and heart rate time-in- zone, using a typical recreational "athlete" as an example: https://t.co/VV3HxXG2yl" / Twitter](https://pbs.twimg.com/media/DXImvSlXcAA0CGS.jpg)