Learn More
Proprioceptive sensory feedback is utilized by the central nervous system for conscious appreciation of the position and movement of the body and limbs. In patients with the hypermobility syndrome (HMS), it has been suggested that there is alteration of proprioceptive acuity. Proprioceptive performance of the knee joint was investigated in 10 female(More)
OBJECTIVES We investigated whether a session of prior exercise could ameliorate postprandial endothelial dysfunction. BACKGROUND Endothelial function is impaired after fat ingestion, and this may be related to rises in triglyceride concentrations. Exercise reduces postprandial triglyceride concentrations. METHODS Ten lean (waist <90 cm) and 10 centrally(More)
The results of this investigation demonstrate, using a position matching paradigm, that the ability of subjects to detect changes in the position of the proximal interphalangeal joint is impaired in patients with rheumatoid arthritis affecting this joint. In this group there is a systematic flexion bias in position judgements compared to an age- and(More)
1. The present experiments were performed to resolve the discrepancy between the experiments of Boyd & Roberts (1953) in which receptors active at intermediate angles (mid range units) were frequently encountered, and the experiments of Burgess & Clark (1969) where mid range units were rarely encountered. 2. The discharge of knee joint afferents in the cat(More)
Electrical stimulation of the cut distal end of the posterior articular nerve (p.a.n.) of the cat knee joint resulted in significant extravasation of plasma proteins and erythrocytes into the synovial cavity of the knee. This effect was mediated by group IV afferents (C fibres) since stimulation of p.a.n. suprathreshold for group II or III afferents but(More)
Injection of local anaesthetic into the knee joint cavity in a series of 14 cats produced obvious abnormalities of posture and gait in half the animals. However, on employing a more sensitive testing procedure, 7 out of 8 animals exhibited reduced proprioceptive acuity after knee joint anaesthesia, and all animals tested showed marked reduction in motor(More)
In decerebrate cats with intact innervation of the fore- and hindlimbs, flexion reflexes are most easily elicited in forelimb muscles when the hindlimb is extended, and hindlimb flexion reflexes are most easily elicited when the forelimbs are extended. After intra-articular injection of local anaesthetic, this modulation of reflex excitability is abolished.(More)
1. Kinaesthetic acuity was tested at the distal interphalangeal joint of the middle finger when the hand was postured so that the joint was effectively disengaged from its muscular attachments. Subjects were required to detect the direction of 5 deg movements applied at different angular velocities from a mid-position under control conditions, after(More)
Using a position matching paradigm, the ability of subjects to detect displacements at the proximal interphalangeal joint of the index finger was tested. These displacements were imposed at an angular velocity of 2 degrees per minute which is below the threshold for movement detection. An older group of subjects whose mean age (+/- s.e.m.) was 56.6 +/- 3.2(More)
  • W R Ferrell
  • 1987
Recordings were obtained from afferents travelling in the posterior articular nerve of the cat knee joint. These arose from tonically active slowly adapting mechanoreceptors which were located in the joint capsule and whose conduction velocities were in the group II range. Intraarticular fluid injection resulted in enhancement of receptor discharge. Both(More)