A 23-year-old male sustained a musculoskeletal injury to his leg while playing organized football. He reports that his cleated
foot was planted into the field when he was hit with a force that caused him to rotate. He heard a snap at this point. What mechanism of injury was applied?
According to the 23-year-old's report, he suffered an injury caused by twisting force
. Twisting force is a mechanism that occurs when a muscle or tendon that attaches to the bone is subjected to an effort that breaks some or many muscle fibers and the blood vessels that supply them, resulting in a bruise accompanied by local inflammation. In the case of the man mentioned above, the twisting force occurred when his tendons and muscles were asked to make a sudden, sharp contraction.
The Louisiana Purchase was a land deal between the United States and France, in which the U.S. acquired approximately 827,000 square miles of land west of the Mississippi River for $15 million.