Heart rate is not really a useful metric when lifting weights to be honest. My heart rate might spike a little when I do a set of heavy deadlifts, but putting a

Heart rate is not really a useful metric when lifting weights to be honest. My heart rate might spike a little when I do a set of heavy deadlifts, but putting away the plates afterwards sometimes feels like more of an exercise than the lift itself. And then there are the cases where wearing a monitor around your wrist or chest might not be such a good idea or impractical (I can imagine ring gymnastics being one). I fear this is one of those cases where technology simply falls short. Some problems are more social than technical.