Gait measures are used to evaluate change in patients with knee osteoarthritis (OA), but reliability has not been fully established in this population. This study examined test-retest reliability of knee angle and moment gait waveform characteristics captured using discrete parameters and principal component analysis (PCA) in individuals with moderate knee OA. Participants (n=20) underwent thre...

INTRODUCTION Osteoarthritis of the knee affects millions of people. Elastic knee sleeves aim at relieving symptoms. While symptomatic improvements have been demonstrated as a consequence of elastic knee sleeves, evidence for biomechanical alterations only exists for the sagittal plane. We therefore asked what effect an elastic knee sleeve would have on frontal plane gait biomechanics. METHODS...

BACKGROUND changes in lower-limb joint moments are important outcome measures for treatment and prevention of knee osteoarthritis. However, it is known that both the magnitude and amplitude of joint moments are affected by the choice of anatomical reference frame. The purpose of this study was to identify features of joint moment waveforms that, regardless of the choice of reference frame, are ...

OBJECTIVE To compare knee kinematics and kinetics during walking in patients with posttraumatic versus nontraumatic medial compartment knee osteoarthritis (OA). METHODS Participants with medial compartment knee OA were classified as nontraumatic (n = 122) or posttraumatic (n = 93) based on evidence of previous anterior cruciate ligament tear, confirmed arthroscopically. Kellgren/Lawrence seve...

INTRODUCTION The peak knee adduction moment (PKAM) is a gait measure which best represents the mechanical pathology associated with knee osteoarthritis (OA). Recent research has focused on whether the PKAM is modified by muscle function. While knee strengthening exercises reduce pain and improve quality of life, strengthening has little effect on the PKAM in OA [1]. Lower-limb muscle power is m...

CONTEXT Lower extremity kinetics while performing a single-leg forward jump landing may help explain gender biased risk for noncontact anterior cruciate ligament injury. OBJECTIVE Gender comparison of lower extremity joint angles and moments. DESIGN Static groups comparison. SETTING Motion analysis laboratory. PATIENTS OR OTHER PARTICIPANTS 8 male and 8 female varsity, collegiate soccer...

OBJECTIVES Prior injury to the knee, particularly anterior cruciate ligament (ACL) injury, is known to predispose one to premature osteoarthritis (OA). The study sought to explore if there was a biomechanical rationale for this process by investigating changes in external knee moments between people with a history of ACL injury and uninjured participants during walking: (1) on different surface...

Iliotibial band syndrome (ITBS) is a common overuse running injury. Atypical secondary plane lower-extremity and trunk biomechanics during running are likely to play a role in the etiology of ITBS [1, 2]. Proximal factors such as a large hip adduction angle may increase the tensile strain in the iliotibial band during the stance phase of running [1]. A lack of ability to limit hip adduction may...