Effect of Low Level Laser Versus Interferential Current on Postmenopausal Low Back Pain

The participants will receive Low Level Laser on lumbo-pelvic region for 20 min/sessions,3 sessions / week for 12 weeks, with the following parameters: Wavelength: 808 nm, continuous mode, Output power: 160 mw, Penetration depth: 4 cm, Power density:0.16 J/cm2.

All participants will receive interferential current on lumbopelvic region ( quadripolar technique) for 25 min/session, 3 sessions/week for 12 weeks, with the following parameters: carrier frequency of 4 KHZ and sweep frequency 95 HZ, intensity based on patient's tolerance without muscle contraction.

The participants will perform core stability exercises for 15 min 3 time/week in the form of Prone Gluteal Squeezes, Pelvic Bridging, Curl Up Exercise, and Double Knee to Chest Stretching Exercises.