movement during contact tactile stimulation of the different aspects of a cat's paw
نویسندگان
چکیده
Forelimb trajectory and the activity of eight muscles operating at the elbow, wrist and digit joints were analyzed during contact placing (CP) reactions elicited by tactile stimuli applied to the lateral (L) or medial (M) side of the cat's forepaw to verify whether a common movement strategy was used in these reactions. A tactile stimulus applied to the lateral side of the paw led, most frequently, to a short-latency activation of the elbow flexor muscles and flexor carpi radialis. Stimulation of the medial side of the paw produced either a short-latency activation of the elbow flexors or both the elbow flexor and extensor muscles. At the distal joints it most frequently activated extensor carpi ulnaris and flexor carpi radialis muscles. Different patterns of activation of the muscles during LCP and MCP reactions led to a diverse involvement of elbow flexion and extension movements at the beginning of the reactions. LCP was usually initiated by the elbow flexion movement whereas during MCP reactions the elbow flexion often appeared with a delay due to a brief co-contraction of the elbow flexor and extensor muscles which temporarily locked the elbow joint. The latter reaction was initiated by a backwardlupward movement at the proximal joints accompanied by an ulnar deviation and a palmar flexion of the paw. The medio-lateral components of the movement were also clearly different in LCP and MCP reactions, both at the proximal and distal joints. The results indicate that various strategies of movement are used in CP reactions depending on the site of tactile stimulation.
منابع مشابه
Effect of Tactile-Kinesthetic Stimulation on Motor Development of Low Birth Weight Neonates
Objectives: Low Birth Weight neonates need complementary interventions (e.g. tactile kinesthetic stimulation) to promote their development. This study was conducted to determine the effect of Tactile- Kinesthetic Stimulation (TKS) on motor development of Low Birth Weight neonates. Methods: In this clinical trial study, sample was made out of 40 inborn LBW neonates who were divided into two g...
متن کاملActivity of the elbow flexor and extensor muscles during contact placing elicited by tactile stimulation of various aspects of the forelimb in the cat.
The activity of the biceps brachii and lateral head of the triceps brachii were compared during the contact placing reactions elicited by tactile stimuli applied to the lateral, medial or dorsal aspects of the forepaw to verify the hypothesis that common movement strategy was used in all these reactions. Similar latencies and patterns of muscle activation have been found for the medial and dors...
متن کاملVariety of muscle responses to tactile stimuli.
Influences exerted by tactile stimuli on the muscle activity were investigated with two methods: (1) analysis of kinematics and electromyographic (EMG) activity of eight forelimb muscles during contact placing (CP) reactions elicited by tactile stimuli applied to the dorsal, medial or lateral sides of the paw in cats, and (2) the Hoffmann (H)-reflex technique to quantify the effects of the tact...
متن کاملEffect of tactile-kinesthetic stimulation on weight gaining of preterm infants
Abstract Background: The quality of life and standard of health care in a society is measured by its preterm infants' mortality rate. The popularity and credibility of alternative treatment such as touch therapy may be effective in preterm and low birth weight infants in order to increase their survival rate. The aim of this study was to determine the effect of touch intervention on the w...
متن کاملThe effect of superficial tactile- kinesthetic stimulation method on weight gain of low birth weight infant
The aim of the present study was to determine the effect of superficial tactile- kinesthetic stimulation method on weight gain of low birth weight infants This is a quasi experimental, type of clinical trial study which was conducted on 54 low birth weight infants in Alzahra, Shahid Beheshti and Shariati hospitals was conducted by convenient sampling method. They were assigned to two groups of ...
متن کامل