I'm 16 but my I still have the heart of a child, I'm 5 foot 3 and my BPM is 47. How much do you think I can improve my mile and 5k when my heart grows. My times are currently 4:58/18:37
I'm 16 but my I still have the heart of a child, I'm 5 foot 3 and my BPM is 47. How much do you think I can improve my mile and 5k when my heart grows. My times are currently 4:58/18:37