Legal, Maybe Not Provable. Entering into an oral contract is one thing, but proving that the contract exists, or that specific terms of the contract exist, is entirely different. Oral contracts are legally dangerous, because there is no concrete record of their existence.
The classic ballet move, the pirouette, is a complete 360-degree turn performed on one leg. In a ballet, it is usually done more than one time, in a twirling motion. Leg muscles used in a pirouette are the calves, hamstrings and quadriceps.
The muscles that perform the majority of the work during cycling are the quadriceps and hamstrings. The quadriceps are used in the downward pedal stroke and provide the main source of power while cycling. The antagonists of the quadriceps are the hamstrings, and these are utilized during the upward pedal stroke.