Table 3.

Correlations between variables used for multiple regression analysis.

		QI following first set	QI following second set
Control	DQMedF	0.43*	-0.27
	DHMedF	-0.17	-0.11
LBP history	DQMedF	-0.06	0.09
	DHMedF	0.46*	0.42*

* p < 0.05. QI = quadriceps inhibition, LBP = low back pain.