The first aspect includes movement phases divisions, time features of each movement phase, distance analysis of each movement phase in motion, and the discussion on the connection among step length, step frequency and pace, etc.

• 其中对动作时相分析中包括动作时相的划分、各动作时相的时间特征、各动作时相滑行的距离分析以及对步长、步频和步速相关关系的讨论;