It is not clear whether the strength or endurance of thigh muscles (quadriceps and hamstring) is positively or negatively correlated with the adduction moment of osteoarthritic knees. This study therefore assessed the relationships between the strength and endurance of the quadriceps and hamstring muscles and adduction moment in osteoarthritic knees and evaluated predictors of the adduction mom...

CLINICAL SCENARIO Interventions aimed at safely overloading the quadriceps muscle after anterior cruciate ligament (ACL) reconstruction are essential to reducing quadriceps muscle weakness that often persists long after the rehabilitation period. Despite the best efforts of clinicians and researchers to improve ACL rehabilitation techniques, a universally effective intervention to restore prein...

0bjective:To provide information on research investigating the relationship between a knee effusion and quadriceps inhibition. Data Sources: Peer-reviewed publications from 1965 to 1997 that investigated the effect of a knee effusion on quadriceps strength. Study Selection: The studies reviewed involved human subjects. Researchers have used active motion, electromyographic equipment, and isokin...

OBJECTIVE To determine the association of quadriceps and hamstrings strength to anterior cruciate ligament (ACL) injury risk in female athletes. The primary hypothesis was that there would be decreased knee flexor and increased knee extensor strength in female athletes who went on to ACL injured status (FACL) compared to uninjured female (FC) and male (MC) control subjects. STUDY DESIGN Match...

BACKGROUND/RATIONALE Although TKA reliably reduces pain from knee osteoarthritis, full recovery of muscle strength and physical function to normal levels is rare. We presumed that a better understanding of acute changes in hamstrings and quadriceps muscle performance would allow us to enhance early rehabilitation after TKA and improve long-term function. QUESTIONS/PURPOSES The purposes of thi...

Background: Quadriceps muscle weakness is common in chronic obstructive pulmonary disease (COPD) but is not observed in a small hand muscle (adductor pollicis). Although this could be explained by reduced activity in the quadriceps, the observation could also be explained by anatomical location of the muscle or fibre type composition. However, the abdominal muscles are of a similar anatomical a...

Reduced peak knee flexion during stair descent (PKSD) is demonstrated in subjects with total knee arthroplasty (TKA), but the underlying factors are not well studied. 3D gait patterns during stair descent, peak passive knee flexion (PPKF), quadriceps strength, pain, proprioception, demographics, and anthropometrics were assessed in 23 unilateral TKA-subjects ~19 months post-operatively, and in ...

purpose there is a decrease in quadriceps muscle strength in subjects with patellofemoral pain syndrome. various types of strengthening exercises of the quadriceps are done as part of its management, but the effect of isotonic eccentric quadriceps muscle exercises on patellofemoral pain syndrome has not been studied. hence the aim of this exploratory pilot study was to evaluate the effect of ec...

The effect of either the muscle spindle cell receptor technique of applied kinesiology or a placebo technique on isometric strength of the right quadriceps femoris muscle group was studied among 20 normal human subjects. Peak, perpendicular maximal values of isometric quadriceps femoris muscle force was measured by a force transducer. Three training sessions consisting of three trials of peak m...

BACKGROUND The lower limb muscle strength is an important determinant of physical function in older people. However, measurement in clinical and epidemiological settings has been limited because of the requirement for large-scale equipment. A protocol using a novel, versatile hand-held dynamometer (HHD) has been developed to measure the quadriceps strength in a supine position. OBJECTIVE The ...