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 smallest man meets woman with world's longest legs. The world's smallest man has met the woman with the world's longest legs. Standing at just 2ft 5in high, He Pingping, from China, has been officially named the smallest man in the world. Svetlana Pankratova, meanwhile, owns the longest legs in the world, which stretch to 132cm.