and Objective: Back pain is a common orthopedic disease that affects up to 80% of the population at some point in life. Brace is one of the tools that used to reduce pain. The relationship between brace application and gait parameters in people with low back pain is not well understood. This study was done to determine the effects of simple and sensor thoracolumbosacral braces on gait kinetics in patients with low back pain. Methods: This quasi-experimental study was performed on 15 men and

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... n with low back pain in the biomechanics laboratory of Mohaghegh Ardabili University Health Center in nort-west of Iran during 2020. Each participant performed three gait conditions including without brace, with sensory brace and with simple brace. Ground reaction forces were recorded and compared by a force plate while walking. Results: The average walking speed during no brace, simple brace and sensor braces were not significant different. Also, results did not demonstrate any significant effect of simple or sensor braces on ground reaction force amplitudes, their time to peak, and free moment values. Conclusion: Simple and sensory thoracolumbosacral brace did not effect on gait kinetics in low back patients.