Stamina Wheel

Stamina is a feature introduced in Skyward Sword. It is displayed as a pie-shaped indicator that appears near Link whenever he is performing an action that requires great effort, such as climbing, running, rolling, pushing and pulling, and performing a Spin Attack. Performing said actions depletes the Stamina Meter, although some actions drain the meter faster than others: while dashing diminishes the stamina constantly, the Spin Attack decreases it in large portions. Because of the meter's limit, Stamina adds a new level of restrictions that the young hero can perform, forcing players to think

When all of Link's stamina is used up, Link will become tired and his movement will be slowed down dramatically. He will also be unable to use items, including his sword and shield, leaving him defenseless against enemies. The Stamina Meter replenishes over time once Link stops performing strenuous actions.