The Measurement Method of the Impact Force of Shoulder Tackle and the Influence of the Lower-Extremity Strength on the Impact Force of Shoulder Tackle in Rugby Players

Table 8

Results of linear regression analysis.

Angular velocity: 60°/s (p＜0.05)	PT of extensors of the right knee
	β	Model equation
IF of front ST in a high position	0.866	Y = 0.866x
IF of front ST in a middle position	0.862	Y = 0.862x
IF of front ST in a low position	0.892	Y = 0.892x
IF of reverse ST in a high position	0.722	Y = 0.722x
IF of reverse ST in a middle position	0.788	Y = 0.788x
IF of reverse ST in a low position	0.737	Y = 0.737x

Note. The independent variable is the PT of the right knee extensor muscle, the dependent variable is IF of ST, and β is the standardized regression coefficient.