STUDY DESIGN This prospective cohort study evaluated four office tests of quadriceps strength in symptomatic adults with radiographic evidence of L3 or L4 nerve root compression. OBJECTIVE The study observed the performance of each test for its ability to detect quadriceps weakness when compared to the asymptomatic side. To determine the potential influence of radicular pain on the performanc...

The Advanced Photon Source (APS) primary and backup injectors consist of two thermionic-cathode rf guns. These guns are being upgraded to provide improved performance, to improve ease of maintenance, and to reduce downtime required for repair or replacement of a failed injector. As part of the process, an injector test stand is being prepared. This stand is effectively independent of the APS li...

Background A reliable self-assessment test to evaluate physical performance could be useful for patients with knee osteoarthritis monitor function over time. However, studies comparing a standardized testing in the clinic supervised by physiotherapist is lacking. The 30 seconds chair stand part of battery which recommended both research and clinical settings [1]. [2, 3]. Objectives purpose stan...