TY - JOUR
T1 - Intra-rater reliability of an experienced physiotherapist in locating myofascial trigger points in upper trapezius muscle
AU - Barbero, Marco
AU - Bertoli, Paolo
AU - Cescon, Corrado
AU - Macmillan, Fiona
AU - Coutts, Fiona
AU - Gatti, Roberto
PY - 2012
Y1 - 2012
N2 - Objectives: Myofascial trigger points (MTrPs) are considered the principal clinical feature of myofascial pain syndrome (MPS). An MTrP consists of spot tenderness within a taut band of muscle fibers and its stimulation can produce both local and referred pain. The clinical diagnosis of MPS depends on correct history taking and a physical examination aimed at identifying the presence of MTrP. The purpose of this study was to investigate the intra-rater reliability of a palpation protocol used for locating an MTrP in the upper trapezius muscle. Methods: Twenty-four subjects with MTrP in the upper trapezius muscle were examined by an experienced physiotherapist. During each of eight experimental sessions, subjects were examined twice in randomized order using a palpation protocol. An anatomical landmark system was defined and the MTrP location established using X and Y values. Results: The intraclass correlation coefficient ICC (1,1) values were 0.62 (95% CI: 0.30-0.81) for X and 0.81 (95% CI: 0.61-0.91) for Y. The Bland-Altman plots for X and Y showed a mean of difference of 0.04 and 20.2 mm, respectively. Limits of agreement for X ranged from 226.3 to 26.2 mm and for Y from 227 to 26.4 mm. Discussion: The ICC(1,1) for the observed values revealed a moderate to high correlation and the Bland- Altman analysis showed means of difference very close to zero with narrow limits of agreement. An experienced physiotherapist can reliably identify MTrP locations in upper trapezius muscle using a palpation protocol. W. S. Maney & Son Ltd 2012.
AB - Objectives: Myofascial trigger points (MTrPs) are considered the principal clinical feature of myofascial pain syndrome (MPS). An MTrP consists of spot tenderness within a taut band of muscle fibers and its stimulation can produce both local and referred pain. The clinical diagnosis of MPS depends on correct history taking and a physical examination aimed at identifying the presence of MTrP. The purpose of this study was to investigate the intra-rater reliability of a palpation protocol used for locating an MTrP in the upper trapezius muscle. Methods: Twenty-four subjects with MTrP in the upper trapezius muscle were examined by an experienced physiotherapist. During each of eight experimental sessions, subjects were examined twice in randomized order using a palpation protocol. An anatomical landmark system was defined and the MTrP location established using X and Y values. Results: The intraclass correlation coefficient ICC (1,1) values were 0.62 (95% CI: 0.30-0.81) for X and 0.81 (95% CI: 0.61-0.91) for Y. The Bland-Altman plots for X and Y showed a mean of difference of 0.04 and 20.2 mm, respectively. Limits of agreement for X ranged from 226.3 to 26.2 mm and for Y from 227 to 26.4 mm. Discussion: The ICC(1,1) for the observed values revealed a moderate to high correlation and the Bland- Altman analysis showed means of difference very close to zero with narrow limits of agreement. An experienced physiotherapist can reliably identify MTrP locations in upper trapezius muscle using a palpation protocol. W. S. Maney & Son Ltd 2012.
KW - Intra-rater reliability
KW - Myofascial pain syndromes
KW - Myofascial trigger points
KW - Palpation
KW - Upper trapezius muscle
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U2 - 10.1179/2042618612Y.0000000010
DO - 10.1179/2042618612Y.0000000010
M3 - Article
C2 - 24179324
AN - SCOPUS:84869840060
VL - 20
SP - 171
EP - 177
JO - Journal of Manual and Manipulative Therapy
JF - Journal of Manual and Manipulative Therapy
SN - 1066-9817
IS - 4
ER -