%0 Journal Article %A Jalalvand, Ali %A Hosseini, Yasin %A Amini, Ashraf %A hamedani, behzad %T A comparative study of ground reaction forces, loading rate and impulse during single leg drop landing in Recurrent Low back Pain Population %J Anesthesiology and Pain %V 8 %N 4 %U http://jap.iums.ac.ir/article-1-5354-en.html %R %D 2018 %K Crossover landing, ground reaction force, impulse, loading rate, %X Aims and background: The purpose of this study was to compare the parameters of ground reaction force during landing in patients with chronic low back pain. Material and Methods: 21 healthy men and 21 men with chronic low back pain participated in this study. Using a Kistler force plate )1000Hz) GRF during landing was measured. Then, maximum GRF and their related time-to-peak, impulse and loading rate were obtained. Independent t student was used to analyze the data (α=0.05). Findings: People with chronic low back pain have lower internal-external GRF and have a lower vertical GRF to touching the ground )FZ2) when landing compared to healthy people. Patients with chronic low back pain have a lower loading rate(Y)(P=.049). conclusion: People with low back pain have a higher vertical ground reaction force than healthy people, and these factors are considered as a risk factor for increasing compressive forces to the spine. %> http://jap.iums.ac.ir/article-1-5354-en.pdf %P 46-60 %& 46 %! %9 Original %L A-10-377-1 %+ Islamic Azad University, Hamedan %G eng %@ 2228-6659 %[ 2018