OBJECTIVE The aim of this study was to evaluate whether vertical facial patterns influence maximal occlusal force (MOF), masticatory muscle electromyographic (EMG) activity, and medial mandibular flexure (MMF). MATERIAL AND METHODS Seventy-eight dentate subjects were divided into 3 groups by Ricketts's analysis: brachyfacial, mesofacial and dolychofacial. Maximum occlusal force in the molar r...

In some circumstances, a person may be deprived of natural abilities, such as walking and speaking, perhaps due to limb amputation, spinal cord injuries (SCI), or degenerative diseases. Assistive technology devices allows motor-impaired people to overcome their limitations promoting greater independence. Particularly suitable in the case of people with severe motor impairment, electrical biosig...

There is very limited scientific data concerning suspension training. The purpose of this investigation was to compare the electromyographic activity of the pectoralis major, anterior deltoid, and triceps brachii between a suspension push-up and traditional push-up. Twenty-one apparently healthy men (n = 15, age = 25.93 ± 3.67 years) and women (n = 6, age = 23.5 ± 1.97 years) volunteered to par...

[Purpose] The purpose of this study was to determine the effect of hand position changes on electromyographic activity of shoulder stabilizers during push-up plus exercise (PUPE) performed on both stable and unstable surfaces. [Subjects] This study was performed on a cohort of 20 normal adults divided into an unstable surface group (USG) (n=10) and a stable surface group (SSG) (n=10). [Methods]...

Links The human tongue during sleep: electromyographic activity of the genioglossus muscle.

The reliability of surface electromyographic (sEMG) variables during swallowing determines the potential usefulness of these measures in swallowing assessment and treatment. This study aimed to establish the reliability of the sEMG measures of the swallowing function of muscles during different swallowing conditions in healthy young and old volunteers. Two groups of volunteers (24 older adults,...

With 14 patients and 50 adult dogs, and using the recording method of the ureteral EMG referred in our 1st report1), the effects of the two muscular re laxants, succinylcholine chloride (SCC) and d-tubocurarine chloride (d-Tc), on the ureteral smooth muscle were observed. The ureteral EMG and the EMG of the respiratory muscles which belong to the striated muscles were recorded simultane ously. ...

BACKGROUND Accurate prediction of in vivo muscle forces is essential for relevant analyses of musculoskeletal biomechanics. The purpose of this study was to evaluate three methods for predicting muscle forces of the shoulder by comparing calculated muscle parameters, which relate electromyographic activity to muscle forces. METHODS Thirteen subjects performed sub-maximal, isometric contractio...

Correspondence to: Daniela A. Biasotto-Gonzalez Rua Caetano de Campos, 96 apto 41A 08717-630 Mogi das Cruzes-SP, Brazil Phone/Fax: 55 11 47265411 email: [email protected] Abstract The temporomandibular joint disorder is characterized by pain and tenderness in the temporomandibular joint and in the masticatory muscles. Muscle hyperactivity can be of significant characteristic in subjects with T...