Table 3. Pearson correlations between DTI parameters and muscle contractile function before and after fatiguing exercise.

PRE: correlation between muscle contractile function before fatiguing exercise. POST: correlation between DTI parameters and % change following fatiguing knee extension. Significant values are denoted by bold text.

Parameter			FA	MD	AD	RD
Peak Twitch Force (PTF)	PRE	r	−0.493	0.565	0.075	0.644
		p-value	(0.087)	(0.044)	(0.808)	(0.018)
	POST	r	−0.113	0.051	−0.033	0.081
		p-value	(0.727)	(0.876)	(0.918)	(0.801)
Rate of Force Dev (RFD)	PRE	r	−0.546	0.580	0.051	0.677
		p-value	(0.053)	(0.038)	(0.869)	(0.011)
	POST	r	−0.257	0.135	−0.062	0.202
		p-value	(0.421)	(0.675)	(0.847)	(0.529)
Post-Activation Potentiation (PAP)	PRE	r	0.157	0.142	0.319	−0.016
		p-value	(0.609)	(0.642)	(0.288)	(0.958)
	POST	r	0.067	0.020	0.004	0.022
		p-value	(0.837)	(0.951)	(0.990)	(0.946)
MVIC Specific Tension	PRE	r	0.099	0.167	0.237	0.061
		p-value	(0.747)	(0.585)	(0.436)	(0.844)
	POST	r	0.585	−0.130	0.628	0.216
		p-value	(0.046)	(0.688)	(0.029)	(0.499)
Voluntary Activation	PRE	r	0.075	−0.428	−0.270	−0.360
		p-value	(0.808)	(0.145)	(0.373)	(0.227)
	POST	r	−0.529	−0.113	−0.516	0.169
		p-value	(0.094)	(0.741)	(0.104)	(0.619)