Adjuvant Effects of Monochromatic Infrared Energy in Rehabilitation of Adolescents With Patellofemoral Pain Syndrome

The monochromatic infrared energy was delivered through an Anodyne Therapy Professional Infrared Therapy System. Light energy (parameter: a wavelength of 890 nm and radiant power at a rate of 6.24 W) was produced through 8 array diode therapy pads applied on both knees (on the medial, lateral, anterior, and posterior aspects of each knee), each including 60 super-luminescent gallium-aluminum arsenide diodes. The MIRE was applied for 40 minutes/session, three times a week, for three successive months.

The traditional physical therapy program consisted of stretching and strengthening exercises for the muscles surrounding the hip and knee, balance exercises, as well as other electrotherapeutic modalities (ultrasound and hot application).