[Retracted] The Biomechanical Analysis of Jumping Difficulty Movement in National Traditional Sports

Table 2

Torsion angle parameters of the trunk relative to the pelvis during the take-off stage.

Feature screen	Time (s)	Sagittal plane (°)	Frontal plane (°)	Level (°)
Start time	0	148.97	10.80	21.29
Take-off leg landing moment	0.346	−160.38	−7.31	−20.85
The minimum moment of the knee angle of the take-off leg	0.374	−123.34	6.70	−4.03
The lowest moment of the head	0.424	−126.51	10.29	1.28
Moment of swinging leg off the ground	0.48	−137.14	19.84	2.84
The moment when the take-off leg leaves the ground	0.664	179.00	30.79	21.76