OBJECTIVE Leg length discrepancy is common both in healthy subjects and after total hip arthroplasty (THA). Studies that evaluated leg length following THA have demonstrated a notable inconsistency in restoring leg length. The effects concerning joint load during gait is however not well known. The purpose of this study was to use three-dimensional (3D) gait analysis to evaluate joint load duri...

OBJECTIVE To investigate the effects of increasing load on changes in the muscle activity ratio and onset of vastus medialis (VM), vastus lateralis (VL) and biceps femoris (BF) during load-carrying walking. MATERIALS AND METHODS Sixteen strength-trained men performed an isometric test for knee flexion/extension using a dynamometer followed by walking with progressively increasing loads of up ...

A cadaver model was used to test the hypothesis that glenohumeral joint stability is independent of articular surface conformity after total shoulder arthroplasty. For the purposes of this study joint stability was defined as the minimum force required for joint dislocation. After arthroplasty components were implanted into fresh-frozen glenohumeral joints, specimens were mounted on a load fram...

Knee osteoarthritis (OA) is prevalent among military servicemembers and has been linked to occupational load carriage. Lower extremity injury risk two times higher in female recruits. Effects of ambulation strategy (walk vs. run) on knee kinematics are known, however effects arthrokinematics during high-velocity walking (force march) unknown. Analyzing biomechanics a loaded march essential unde...

There is a shortage of power supply in multi provincial grid during peak load period. The response speed interruptible fast, and it has the same excellent regulation performance as standby on generation side, which can meet needs fast transfer. Aiming at situation participating joint market under bilateral mode, this paper designs clearing process electric energy reserve considering load, estab...

The three-dimensional load displacement behavior of nine fresh adult L5-S1 spine motion segments was studied. Static test forces up to 160 N in anterior, posterior, and lateral shear, test forces up to 320 N in compression, and test moments up to 15.7 Nm in flexion, extension, lateral bending, and torsion were used. The six displacements of the center of the inferior L5 endplate were measured 1...