Yo personalmente soy muy vago para estas cosas, así que me limitaré a pegar un fragmento de un artículo de Jason Robillard que ya pegué antes recientemente en otro post.
Estas son las que ventajas que menciona Robillard:
Should you permanently ditch your shoes and join the ranks of the dirty-soled? It depends on your goals. People begin running barefoot for a variety of reasons. Some common reasons include relief from injuries, desire to reduce running gear,
searching for a new challenge, or just adding an element of fun to stale training routines.
[...]
Injury reduction: Many people that begin running barefoot report a dramatic reduction of many injuries that plague shod runners. Shin splints, plantar fasciitis, ITBS, blackened toenails, and sprained ankles are just a few injuries that seem to decrease when running without shoes.
Enjoyment: Barefoot running reintroduces a certain degree of novelty to the running experience. The feeling of your feet connecting with the ground reawakens a primal drive we lose when we encapsulate our feet in shoes.
Cost: Shoes can be prohibitively expensive, especially if you are a high mileage trainer.
Convenience: Running is a unique sport because so little equipment is required. Without the need for shoes, all that is really needed is some degree of clothing. Depending on the tolerance of your running partners, perhaps even clothing is optional.
Strength, balance, and proprioception: Barefoot running helps strengthen the muscles, tendons, ligaments, and bones of the feet. Losing the shoes also helps develop a better sense of both balance and body awareness.
Reference:
Robillard, Jason.
Baring Your Soles: Is Barefoot Running Right For You? Running Competitor. Jan 17, 2011 (
http://running.competitor.com/2011/01/f ... -you_20539)