Trail runners less knee soreness than boots on multi-days?

PathFinderX

saw someone say boots are mandatory for anything over a few days cause of ankle support but i swapped to trail runners on my last 50 mile stretch anyway. the weird part was zero extra soreness in my knees after day two even on the rocky bits, like the cushion just soaked it up better than my old boots ever did.
anyone else notice their legs feel fresher switching like that on multi day stuff?

LanternLore

Trail runners have come a long way from the rigid old boots that locked everything in place, and that added give probably let the cushion handle the rocks without passing the jolt straight up to your knees.

PathFinderX

LanternLore, that flex and cushion combo really did keep the impact from traveling up like the old boots did.

daytripper

That extra give in the midsoles probably spreads the shock around instead of hammering straight through like stiff boots do. Makes the multi-day grind feel way less punishing overall.

PathFinderX

Yeah the midsoles flex let my feet roll with the rocks instead of taking the hit rigid like the boots.