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 load...

Objective: Fatigue is an integral part of sports that can affect athletic performance. The aim of this study was to determine the effect of shoulder girdle muscle fatigue on ground reaction force, Elbow and shoulder angle, and accuracy in handball penalty throws. Methods: 10 healthy male handball player with no history of injury in the shoulder (mean age 9/18 years, weight 79/72 kg, height 179...

Objective Osteoarthritis is a degenerative disease of joints that causes degeneration and corrosion of joint surface. Because of osteoarthritis, the smooth and even movemvement of joints get interrupted. Osteoarthritis is the most common kind of arthritis and its prevalence is 19.3% in Iran. Patients with knee osteoarthritis usually have geno varum and hyperpronation of foot. The...

Introduction: Weightlifting is a sport that is performed in different weights. The purpose of the present study was to investigate the effect of different degrees of weight loss on the values of ground reaction force during the lift movement in elite weightlifters. Methodology: The current research was semi-experimental. The statistical sample of the research was selected using the available m...

 Aims and background: Inappropriate kinetic and kinematic are considered as effective factors in knee injuries especially patellofemoral pain. The aim of this study was to investigate the immediate effect of Mulligan taping on knee dynamic valgus, maximum knee flexion angle, the maximum ground reaction force, time to stabilization and pain in physically active female with patellofemoral pain an...

Objective: Every person is required to walk and stand for long periods of time during daily activities, especially at work, as a result of which ground reaction force to the parts and joints is very high, and these forces sometimes reach several times the body weight in the foot and the ankle foot can have devastating effects. Various studies have suggested different methods and factors for red...

introduction: The aim of this study was to investigate the effects of backward gait training protocol on ground reaction forces in Patients with medial knee Osteoarthritis. Methods: This quasi-experimental study was performed with a pretest-posttest design in two groups of healthy and unhealthy and the experimental group (participants with medial knee osteoarthritis). The participants were 21 ...

Background and Objectives: The prevalence of flexible flat foot in children was reported between 20 -78% in previous studies. Flat foot can result into mechanical deviations in lower limb alignment during walking. The purpose of this study was to evaluate the immediate effects of medical insole on loading rate, impulse, and free moment in children with flat foot during walking. Material and M...