00:19 duration 19 seconds
短跑的主要階段
從分析運動的角度,介紹100米短跑過程的主要階段。
19:47 duration 19 minutes 47 seconds
Forces and Motion Behind Sprinting
1. Recognize the major phases of a sprint (start, acceleration, maintaining speed, and deceleration); and 2. Understand the Newton’s Laws of motion involved in a sprint.