Effect of Whole-Body Vibration Training on Muscle Activation for Individuals with Knee Osteoarthritis

Table 1

Synergistic effects of frequency and angle on the EMG%_MVC of VM, VL, RF, S, and BF.

Muscle	Frequency	0°	30°	60°			Partial
VM	0 Hz				4.586	0.017	0.096
	5 Hz
	10 Hz
	20 Hz
VL	0 Hz				0.849	0.363	0.019
	5 Hz
	10 Hz
	20 Hz
RF	0 Hz				0.982	0.389	0.022
	5 Hz
	10 Hz
	20 Hz
S	0 Hz				0.882	0.437	0.020
	5 Hz
	10 Hz
	20 Hz
BF	0 Hz				0.907	0.407	0.021
	5 Hz
	10 Hz
	20 Hz

Abbreviations: EMG%_MVC: muscle activation rate; VM: vastus medialis; VL: vastus lateralis; RF: rectus femoris; S: semitendinosus; BF: biceps femoris.