Your bad running/walking mechanics can lead to nasty issues in the foot and lower leg. Below Kelley addresses a common problem known as "turf toe." Do you lack mobility in your foot/leg/hip area? Many of us do! Solve these issues before they solve you!
WOD 12 rounds of: 2 Dynamic Deadlifts per round. 50% of 1 Rep Max w/ 30 seconds rest between rounds.
then
Zercher Carry 300ft Go heavy. Use as many drops as needed.