Instrumented assisted soft tissue mobilization vs extracorporeal shock wave therapy in treatment of myofascial pain syndrome

Table 3 Paired t-test comparison for pre- and post-treatment mean values of all variables for all group (A and B) patients

Group	Pre-treatment	Post-treatment	t value	P value	Significance
	n = 20	n = 20
Group A
Pain intensity for TrP1	6.05 ± 1.90	3.75 ± 1.69	6.55	0.00011	HS
Pain intensity for TrP2	7.15 ± 1.90	4.06 ± 1.45	8.32	0.00011	HS
PPT for TrP1	17.08 ± 4.99	30.75 ± 18.12	-3.51	0.0021	Sig
PPT for TrP2	15.72 ± 5.75	27.93 ± 9.90	-6.97	0.00011	HS
Group B
Pain intensity for TrP1	6.38 ± 1.5	3.82 ± 1.53	9.56	0.00011	HS
Pain intensity for TrP2	7.20 ± 1.56	3.93 ± 1.22	12.82	0.00011	HS
PPT for TrP1	14.83 ± 5.31	22.82 ± 9.55	-5.86	0.00011	HS
PPT for TrP2	14.68 ± 6.13	28.29 ± 10.08	-7.03	0.00011	HS

Data are presented as mean ± SD unless otherwise indicated.

¹Statistically significant.

HS: Highly significant; PPT: Pressure pain threshold; Sig: Significance; TrP: Trigger point. Group A: Patients treated with instrument assisted soft tissue mobilization; Group B: Patients treated with extracorporeal shock wave therapy.