A foot with an excessively high arch. Overview. Pes cavus occurs in up to 15% of the population, of which 60% will develop foot pain (Burns 2005). Common complaints associated with pes cavus include pain under the metatarsal heads and the heel, lateral ankle sprains, and footwear issues. Custom orthoses should be designed to address the pathomechanics of problematic cavus foot based on the evidence in the literature. Clinical Goal for Orthotic Treatment. The orthosis for the treatment of pes cavus foot must accomplish several specific goals: Increase plantar surface contact area. The overload on the metatarsal heads is a result of limited plantar surface contact due to the high arch and limited ankle joint dorsiflexion.
If you're investing in individual securities, particularly less-liquid ones, it pays to be aware of bid-ask spreads when you're buying and selling. The bid is the price that someone is willing to pay for a security at a specific point in time, whereas the ask is the price at which someone is willing to sell. The difference between the two prices is called the bid-ask spread. Bid-ask spreads have the characteristic of heads they win, tales you lose: If you're a seller, you receive the lower price (the bid), and if you're a buyer, you pay the higher price (the ask).
Definition of bid price. : the price that a buyer offers to pay.