Journal of Sports Science and Medicine

Table 2. Data of pain (VAS score) at baseline, pretreatment and post-treatment. Data are shown as mean (± SD).

			Baseline	Pretreatment	Posttreatment
VAS	Passive	NVFR	0.00	2.53 (2.55) ^a	1.58 (1.43) ^a,b
	Passive	VFR	0.00	2.68 (2.81) ^a	0.74 (1.14) ^*
	Quadriceps isometric activation	NVFR	0.00	5.63 (2.63) ^a	5.38 (2.52) ^a,b
	Quadriceps isometric activation	VFR	0.00	5.13 (2.45) ^a	4.37 (2.31) ^a,b
	Squat	NVFR	0.00	5.00 (2.40) ^a	3.79 (2.68) ^a,b
	Squat	VFR	0.00	4.68 (2.03) ^a	2.76 (2.15) ^a,b
	Quadriceps Stretching	NVFR	0.00	4.68 (2.45) ^a	3.47 (2.55) ^a,b
	Quadriceps Stretching	VFR	0.00	4.61 (2.13) ^a	2.68 (2.00) ^a,b
PPT	Lateral vastus	NVFR	11.27 (2.37)	8.03 (3.96) ^a	9.17 (4.15)
	Lateral vastus	VFR	14.80 (4.38) ^*	10.32 (4.12) ^a	12.06 (5.24) ^a,b
	Rectus femoris	NVFR	12.68 (3.54)	9.42 (4.63) ^a	10.36 (4.64) ^a
	Rectus femoris	VFR	16.60 (6.20) ^*	12.05 (4.88) ^a	13.82 (5.34) ^a,b*
	Vastus medialis	NVFR	10.90 (3.02)	7.71 (4.16) ^a	8.23 (3.42) ^a
	Vastus medialis	VFR	15.17 (5.56)	10.51 (4.50) ^a*	12.53 (5.27) ^a,b**

NVFR, non-vibration foam roller group; VFR, vibration foam roller group; VAS, visual analogic scale; PPT, pressure pain threshold.

* p <0.05

**p < 0.01 compared with NVFR.

a, difference (p < 0.05) with baseline

b, difference (p < 0.05) with pretreatment.