Table 3. Comparison of ultrasonographic variables at baseline, two weeks, and six weeks.

	Group 1 (n=17)	Group 2 (n=17)	Group 3 (n=17)	P
	Mean±SD	Mean±SD	Mean±SD
Thickness of common extensor tendon
Baseline (B)	2.9±0.8	3.0±0.9	2.8±0.7
Second week (2w)	2.6±0.7	2.4±0.7	2.7±0.9	2-3: <0.05 1-2: <0.05
P value		B-2w: <0.05
SD: Standard deviation.