High arches
The pressure is on smaller toes on outside of foot.
Plantar fasciitis, shin splints, ankle strain.
The outer side of the heel hits the ground at an increased angle with little or no normal pronation, causing a large transmission of shock through the lower leg.
Normal size arches
There is even distribution from the front of the foot.
Less likely due to effective shock absorption, but neutral runners are not immune to injury.
The foot lands on outside of the heel, then rolls inward (pronates) to absorb shock and support body weight.