The psoas is a deep-seated core muscle connecting the lumbar vertebrae to the femur. The psoas major is the biggest and strongest player in a group of muscles called the hip flexors: together they contract to pull the thigh and the torso toward each other.
7 photos: Photos: Tallest man meets shortest man. Chandra, meet Sultan â Chandra Bahadur Dangi, at 21Â½ inches the shortest adult ever verified by Guinness World Records, poses Thursday in London with the world's tallest man, Sultan Kosen, who stands 8 feet 3 inches tall.
Shortly after he was crowned, the worldâs shortest man met the worldâs shortest woman, 2-foot Indian Jyothi Amge from India. Last year, Dangi met the worldâs tallest man, 8-foot-3 Sultan KÃ¶sen from Turkey.