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.
World's Shortest Man Meets World's Shortest Woman. To promote the newest edition of Guinness World Records, Chandra Bahadur Dangi, who at 21.5 inches is the world's shortest man, met the world's Shortest Woman, Jyoti Amge, who measures 24.7 inches.