Tabriz University of Medical Sciences Medical Journal of Tabriz University of Medical Sciences 2783-2031 40 4 2018 10 04 Effects of gluteal muscle specific strength training on kinetics and pain in patients with chronic non specific low back pain 80 91 EN Hadi Naghibi Malihe Hadadnezhad Amir hossein Barati Sadredin Shojaedin Journal Article 2018 09 23 Background: Abnormal hip kinetics and impaired hip muscle performance have been associated with various musculoskeletal disorders, such as patellofemoral pain, iliotibial band syndrome, anterior cruciate ligament injuries, low back pain, and hip joint pathology. The aim of this study was to compare the effect of gluteal muscles specific strength training on kinetics (time and frequency domain) and pain in patients with chronic non specific low back pain. Methods: In the present study the before and after the implementation of gluteal muscles specific strength training, the pain, kinetics variables (time and frequency domain) in two (stable-without fatigue and instable- fatigued positions) and electrical activity of gluteus medius, maximus and tensor fascia lata muscles were done by using visual analogue scale, force plate and electromyography respectively and results analysed by analysis of covariance, independent and paired t test Results: 24 subjects with chronic nonspecific low back pain mean age 30.27±5.48 years old were selected and divided into two equal control and experimental groups The results showed that gluteal muscles specific strength training increases the activity of the gluteal muscles and decrease tensor activation, improve in the kinetics variables and pain decreases in patients with chronic non specific low back pain. Conclusion: After implementation of gluteal muscles specific strength training, significant differences was gained in kinetics variables (time and frequency domain) and pain that beside the findings of muscle activation discused in complementary results of this study, need to be mor investigated in future researchers.