What percentage of heart rate reserve should each zone be? Are they the same as regular heart rate?
What percentage of heart rate reserve should each zone be? Are they the same as regular heart rate?
bump
You should have a black heart and run on pure hate.
Megan Keith (14:43) DESTROYS Parker Valby's 5000 PB in Shanghai
2024 Boston marathon - The first non-carbon assisted finisher ran..... 2:34
Official Suzhou Diamond League Discussion Thread (7-9 am ET+ Instant Reaction show at 9:05 am ET)
adizero Road to Records with Yomif Kejelcha, Agnes Ngetich, Hobbs Kessler & many more is Saturday