Our results showed that the ankle and the knee had asymmetrical angles between the left and the right leg while the hip was symmetrical between the two. The asymmetry is thought to happen because of inflexibility. Only the ankle is inflexible though. Because of the restricted range of motion in the ankle, this forced the knee to do the same because the two are directly proportional. Because of this asymmetry, the ground reaction forces (GRF) are different. The restricted range of motion decreases the amount of energy absorption which increases the amount of force that is applied to the treadmill. However, the velocity as well as the acceleration are the same between the legs. The motion of the leg is still the same while the range of motion is different.