Knee Biomechanics During Neurocognitively Challenged Drop Landings in Male Elite Soccer Players with Anterior Cruciate Ligament Reconstruction

Gholipour Aghdam, Ghazal Mohammad; Alizadeh, Mohammad Hossein; Minoonejad, Hooman; Shirzad, Elham; Wilke, Jan

doi:10.1186/s40798-024-00685-w

Sports Medicine - Open

Table 5 Correlations between Neurocognitive Function and Landing Kinetics

From: Knee Biomechanics During Neurocognitively Challenged Drop Landings in Male Elite Soccer Players with Anterior Cruciate Ligament Reconstruction

Variables			Correlation coefficients			Δ of group correlations: p (z-value)
Variables			Full dataset	CON group	ACLR group	Δ of group correlations: p (z-value)
Verbal memory	vGRF	Max	− 0.45*	− 0.62*	− 0.38	0.21 (0.79)
		Min	− 0.34	− 0.75*	− 0.19	0.02* (1.91)
		Mean	− 0.44	− 0.58*	− 0.40	0.27 (0.58)
	TTS	Max	− 0.16	− 0.07	− 0.36	0.22 (0.75)
		Min	− 0.27	− 0.18	− 0.34	0.33 (0.42)
		Mean	− 0.08	− 0.16	− 0.04	0.38 (0.29)
	COP	Max	0.26	− 0.14	− 0.33	0.31 (0.49)
		Min	0.32	− 0.16	− 0.50*	0.17 (0.95)
		Mean	0.20	0.11	− 0.40	0.09 (1.31)
Visual memory	vGRF	Max	− 0.17	− 0.02	− 0.41	0.15 (1.01)
		Min	− 0.24	− 0.16	− 0.40	0.26 (0.64)
		Mean	− 0.09	− 0.09	− 0.36	0.24 (0.70)
	TTS	Max	− 0.03	− 0.11	− 0.04	0.43 (0.17)
		Min	− 0.05	− 0.01	− 0.05	0.46 (0.09)
		Mean	− 0.06	− 0.14	− 0.07	0.43 (0.17)
	COP	Max	0.01	0.00	− 0.09	0.41 (0.22)
		Min	− 0.12	0.30	− 0.20	0.10 (1.25)
		Mean	− 0.30	0.23	− 0.07	0.22 (0.75)
Processing speed	vGRF	Max	− 0.24	− 0.36	− 0.40	0.37 (0.15)
		Min	− 0.59*	− 0.52*	− 0.47*	0.43 (0.16)
		Mean	− 0.64*	− 0.65*	− 0.46*	0.24 (0.68)
	TTS	Max	− 0.30	− 0.11	− 0.31	0.30 (0.51)
		Min	− 0.24	− 0.13	− 0.42	0.21 (0.77)
		Mean	− 0.18	− 0.14	− 0.36	0.28 (0.57)
	COP	Max	− 0.23	− 0.16	− 0.35	0.30 (0.50)
		Min	− 0.15	− 0.05	− 0.25	0.30 (0.50)
		Mean	− 0.17	− 0.05	− 0.28	0.28 (0.58)
Reaction time	vGRF	Max	− 0.05	− 0.04	− 0.03	0.49 (0.02)
		Min	− 0.21	− 0.26	− 0.14	0.38 (0.30)
		Mean	− 0.12	− 0.08	− 0.07	0.49 (0.02)
	TTS	Max	− 0.16	− 0.06	− 0.11	0.45 (0.12)
		Min	− 0.36	− 0.34	− 0.17	0.12 (1.16)
		Mean	− 0.19	− 0.35	− 0.16	0.30 (0.50)
	COP	Max	− 0.05	0.31	0.16	0.34 (0.39)
		Min	− 0.01	0.10	0.21	0.39 (0.27)
		Mean	− 0.11	0.14	0.17	0.47 (0.07)

Table shows Spearman’s Rho correlation coefficients. Significant associations are marked bold and with an asterisk. All kinematic data are expressed as [°]. ACLR = anterior cruciate ligament reconstruction, CON = control, TTS = time to stabilisation, vGRF = vertical ground reaction force, COP = center of pressure, max = maximum, min = minimum

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