Article

Our current theoretical understanding of gluteus minimus (GMin) and gluteus
medius (GMed) function is primarily based on cadaveric studies and biomechanical
modelling. There is an absence of electromyographic (EMG) research that aims to
verify this understanding, particularly in relation to the potentially unique
functional roles of structurally distinct segments within GMin (anterior and
posterior) and GMed (anterior, middle and posterior). The aim of this paper is to
provide a comprehensive technical description for inserting intramuscular EMG
electrodes into uniquely oriented segments of GMin and GMed; and to report the
levels of discomfort associated with gluteal intramuscular electrode insertions.
Fifteen healthy volunteers took part in a series of walking trials after
intramuscular EMG electrodes were inserted into segments of GMin (x2) and GMed
(x3) according to previously verified guidelines. Visual analogue scores
following walking trials at comfortable and fast speed indicate that discomfort
levels associated with these insertions were low (2.4+/-1.4 and 1.6+/-0.7
respectively). The technical descriptions and illustrations provided in this
paper will allow trained intramuscular electromyographers to insert electrodes
into these muscle segments with confidence.
CI - Copyright (c) 2012 Elsevier B.V. All rights reserved.

Langue : ANGLAIS