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.
Jyoti said: Since being recognised by Guinness World Records I have been able to visit lots of different countries. I love travelling. In February this year, Chandra Bahadur Dangi from Nepal made headlines across the globe when he was crowned the world's Shortest Man, standing at 54.6 cm (21.5 in).