There is no such position as Mayor of the United States (US). A  Mayor is typically a political position for cities and towns. The  United States is led by a president. Curr â¦ ently, the president is  Barack Obama.
Fast-twitch muscles. Fast-twitch muscles use an 'anaerobic' metabolism to create fuel and need more oxygen, and they are much better at generating short bursts of strength or speed than slow muscles, such as a 100 metre sprint or weightlifting, but they tire more quickly.
SHARE SHARE TWEET EMAIL. The flutter kick is a basic swim kick used in the freestyle or front crawl stroke and backstroke. Your legs are extended out almost straight with pointed toes and your hips drive the up-and-down movement of the legs.