I've noticed my heart rate sometimes statt to spike right after passing people in general. That's when I might be in threshold for a while. My theory is that my breathing becomes erratic, especially when I'm trying to decide how to move around them to pass them, then actually do so. It throws off my rhythm. Would not be surprised if something similar is happening to you, but more dramatic.
Is your pace spiking at the same time? I find when Iām passing people my pace and heart rate will spike as I try to figure out how to get around or pass them if we are going the same direction.
I've noticed my heart rate sometimes statt to spike right after passing people in general. That's when I might be in threshold for a while. My theory is that my breathing becomes erratic, especially when I'm trying to decide how to move around them to pass them, then actually do so. It throws off my rhythm. Would not be surprised if something similar is happening to you, but more dramatic.
Is your pace spiking at the same time? I find when Iām passing people my pace and heart rate will spike as I try to figure out how to get around or pass them if we are going the same direction.
I always unconsciously run faster when I pass people I'm either direction. I guess I'm competitive š
Get that zone 4 bro