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Revista de la Facultad de Medicina
versión impresa ISSN 0120-0011
Resumen
ESPINOSA-LOPEZ, Andrea Milena et al. Effects of muscle energy technique for quadratus lumborum on respiratory muscle strength in patients with breast cancer. rev.fac.med. [online]. 2019, vol.67, n.4, pp.657-663. ISSN 0120-0011. https://doi.org/10.15446/revfacmed.v67n4.68950.
Introduction:
Breast cancer is a major cause of morbidity and mortality, leading to functional deficiencies in ventilation, muscle performance, balance and posture.
Objective:
To describe the effects of the muscle energy technique (MET) for quadratus lumborum on maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) in patients with stage I and II breast cancer.
Materials and methods:
Quasi-experimental study with a pretest-posttest design conducted in 10 patients treated at a highly specialized healthcare center in Bogotá. Physical therapy assessment and three physiotherapy sessions with the MET to measure MIP and MEP were carried out before and after the intervention using a respiratory pressure meter.
Results:
The average MIP was 41% of the reference value at the beginning of the intervention, which increased to 69% at the end of the sessions. On the other hand, the initial average MEP was 33%, while the post-intervention average MEP was 51%. The average change rate for MIP was 68% and 57% for MEP. The Wilcoxon signed-rank test was performed, achieving a statistically significant difference (z=-2.807, p=0.005).
Conclusion:
Applying the MET on the quadratus lumborum muscle improves its performance and increases respiratory muscle strength.
Palabras clave : Breast Cancer; Pressure; Muscle Strength; Respiratory Muscles (MeSH).