OBJECTIVE The aim of the study was to: 1) evaluate the differences in pre-post operative knee functioning, mechanical stability, isokinetic knee muscle strength in simultaneous arthroscopic patients after having undergone an anterior cruciate ligament (ACL) and the posterior cruciate ligament (PCL) with hamstring tendons reconstruction, 2) compare the results of ACL/PCL patients with the contro...

A brief description is given of the anatomy, innervation and mechanical properties of the extensor tibiae muscles of the locust. Each is innervated by a 'fast' (FETi) and 'slow' (SETi) excitatory axon, one branch of a common inhibitor (CI) and a fourth small axon (DUMETi). The prothoracic and mesothoracic extensors contract more rapidly than the metathoracic muscle but exhibit a stronger 'catch...

OBJECTIVES To describe muscle parameters in healthy teenagers and compare them to teenagers with chronic low back pain. METHODS A comparative study of 276 control teenagers and 51 teenagers with chronic low back pain (CLBP), benefiting from a specific treatment, 14.5 years average age. The control group is made up of teenagers without back pain and teenagers who reported some back pain when w...

An understanding of the coordination of the leg muscles in recumbent pedaling would be useful to the design of rehabilitative pedaling exercises. The objectives of this work were to (i) determine whether patterns of muscle activity while pedaling in the recumbent and upright positions are similar when the different orientation in the gravity field is considered, (ii) compare the functional role...

Torque motor produced stretch of upper limb muscles results in two distinct reflex peaks in the electromyographic activity. Whereas the short-latency reflex (SLR) response is mediated largely by the spinal monosynaptic reflex pathway, the longer-latency reflex (LLR) is suggested to involve a transcortical loop. For the SLRs, patterns of heteronymous monosynaptic Ia connections have been well-st...

The purpose of this research project was to evaluate the methodology of an iso-inertial force-velocity assessment utilizing a range of loads and a group of high-performance athletes. A total of 26 subjects (19.8 +/- 2.6 years, 196.3 +/- 9.6 cm, 88.6 +/- 8.9 kg) participated in this study. Interday reliability of various force-time measures obtained during the performance of countermovement jump...

the development and widespread use of a prophylactic vaccine significantly reduced the incidence of poliomyelitis. at present we more commonly encounter with poliomyelitis sequelae especially in developing countries. we evaluate the results of a modified innominate osteotomy for leg length discrepancy in poliomyelitis. instead of triangular bone graft as in salter’s innominate osteotomy , a tra...