Patients and intervention: A sample of 20 patients with bilateral lumbopelvic pain, between 18 and 60 years old, will be recruited and randomized into 2 intervention groups. The instrumental manual therapy with the switched on capacitive diathermy electrode (IMT+ T-CaRe®on; n = 10) and the instrumental manual therapy with the switched off capacitive diathermy electrode (IMT+ T-CaRe®off; n = 10) will be bilaterally treated for 4 weeks (1 treatment per week during 10 minutes) in the lumbopelvic region.