Correlation analysis of national elite Chinese male table tennis players’ shoulder proprioception and muscle strength

Table 6 Correlation analysis of the strength and proprioception at 180°/s in the shoulder joint in the non-racket-holding hand of table tennis players

		Absolute peak torque of external rotation	Relative peak torque of external rotation	Absolute peak torque of internal rotation	Relative peak torque of internal rotation
External rotation AE	Pearson	-0.266	0.046	-0.351	-0.025
	P value	0.257	0.847	0.129	0.917
External rotation CE	Spearman	-0.236	-0.099	-0.065	-0.093
	P value	0.318	0.679	0.786	0.697
External rotation VE	Spearman	0.040	0.083	-0.026	0.136
	P value	0.867	0.729	0.914	0.569
Internal rotation AE	Pearson	0.003	-0.070	-0.087	-0.120
	P value	0.990	0.771	0.715	0.615
Internal rotation CE	Pearson	-0.142	0.163	-0.076	0.184
	P value	0.551	0.492	0.751	0.437
Internal rotation VE	Spearman	0.202	0.554a	-0.226	0.389
	P value	0.394	0.011a	0.339	0.090

^aP < 0.05 forces vs proprioception.

AE: Absolute error; CE: Constant error; VE: Variable error.