Honda riders Stefan Bradl and Dani Pedrosa both underwent surgery this week to correct problems with arm pump.
Arm pump (also known as compartment syndrome) occurs when blood flows into overworked forearm muscles, but doesn’t flow out quickly enough, causing the forearms to swell, become rock-hard, and resulting in all sorts of pain. Arm pump can make it virtually impossible to grip handlebars and levers, and can drastically reduce nerve feedback, making control very tricky.
It’s especially common with motocrossers, but not unheard of in roadracing either. Back in 2012, Casey Stoner blamed it for a third-place finish in Qatar. Bradl had surgery for arm pump in 2012 as well.
Both Bradl and Pedrosa were suffering in their right forearm, and by all accounts, both procedures went well, meaning both riders should be ready for the Le Mans round.