Seriously, what is an arm pump and why does it hurt?
If you've ever gripped your handlebars or a heavy barbell and felt your forearms turn into solid blocks of wood, you've probably wondered what is an arm pump and why it's ruining your session. It's that bizarre, rock-hard sensation where your fingers stop listening to your brain, and suddenly, just holding on feels like a Herculean task. Whether you're a motocross rider, a mountain biker, a rock climber, or just someone hitting the gym for a heavy back day, arm pump is the universal party pooper of high-intensity forearm use. ...