I just did shoulders and when I get home to jump in the shower, I had broken capillaries aka bruising under the skin on my traps. They are nearly identical and on both of my shoulders? Do you think I just went a little too intense or what?
I had a FitBit, but it fell apart on me so I recent bought the Garmin VivoActive HR and its pretty awesome! It actually does a good job of tracking cycling which a lot of them dont unless you're moving your arms / wrists
