Background and Study Aim. Muscular strength balance are important components of athletic performance, the muscles around knee (Quadriceps Hamstrings) provide joint stability when is in motion. The aim this study was to analyze correlation between quadriceps/hamstring (H/Q) muscle strength, Hamstring/Quadriceps ratio performance. Material Methods. Ten male volunteers with an average age 21.60±2....

Abstract
 Aim: Patellafemoral angle (Q angle) and Hamstring length are important measurements to evaluate balance. This study aims examine the effects of Q on balance performance in patients with lumbar intervertebral disc herniation (LDH). 
 Material Method: LDH (n=32) control group (KG)(n=30) were included study. angles hamstring muscle lengths participants measured. Balance was eva...

ABSTRACT Introduction: The assessment of biomechanical changes related to the lower limbs is necessary in clinical practice measure potential risks injury and influences on existing dysfunction. Biomechanical previous ankle injuries are known influence performance entire limb. Objective: aim this study was correlate muscle strength tests, tests stability with Single Hop Test (SHT). Methods: 82 ...

OBJECTIVE The high incidence of noncontact anterior cruciate ligament (ACL) injuries in females has attracted research to investigate the capacity of muscles to reflexively protect the knee joint from capsuloligamentous injury. Numerous reflex pathways link mechanoreceptors in the ACL with contractile fibers in the quadriceps and hamstring muscles. Loads placed on the ACL modify reactive muscle...

Seventy patients with patellar tendon or hamstring tendon autografts for single-incision anterior cruciate ligament reconstruction were evaluated at least 2 years after surgery. All reconstructions were performed by the same surgeon, and metal interference screws were used for fixation of all grafts. No significant differences were noted between groups for Lysholm score, reduction in activity, ...

Background: The hamstring is a muscle that crosses two joints, the hip and knee, its flexibility an important indicator of physical health in role many activities daily living such as sitting, walking, running. Limited range motion (ROM) due to tightness strongly related back pain malfunction joint. High-frequency diathermy (HFD) therapy known be effective relaxing increasing ROM. Objects: To i...

Hamstring muscle function during knee flexion has been linked to hamstring injury and performance. However, it is unclear whether alone (KF) requires similar electromyography (EMG) activity pattern simultaneous hip extension (HE-KF), a combination that occurs in the late swing phase of sprinting. This study examined HE-KF maximal voluntary isometric contraction (MVIC) evokes higher biceps femor...

The purpose of this study was to test the effect of a jump-training program on landing mechanics and lower extremity strength in female athletes involved in jumping sports. These parameters were compared before and after training with those of male athletes. The program was designed to decrease landing forces by teaching neuromuscular control of the lower limb during landing and to increase ver...

CONTEXT Hamstring muscle length is commonly measured because of its perceived relationship to injury of both the hamstrings themselves and the pelvis and lumbar spine. The popliteal (knee-extension) angle measured from the starting position hip and knee at 90° is a commonly used indirect measure of hamstring muscle length. When this measure has been undertaken in the literature previously, litt...