One of the many reasons cushioned running shoes are bad is that their lack of ground-feel actually weakens the foot. Foot weakness and discomfort, which leads to poor balance and mobility impairments, arises from limited underfoot sensory input, and is a common consequence of routine use of thickly shoes. This is because thick underfoot cushioning impedes the conversion of underfoot sensory stimulation to functional strength development of the foot. Basically, the thicker the underfoot cushioning, the more the foot is starved of sensory input, the weaker your foot becomes over time. Read more here!
