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Revista Andaluza de Medicina del Deporte
versão On-line ISSN 2172-5063versão impressa ISSN 1888-7546
Rev Andal Med Deporte vol.8 no.1 Sevilla Mar. 2015
https://dx.doi.org/10.1016/j.ramd.2014.10.021
COMUNICACIONES
SYMPOSIUM EXERNET. Investigación en Ejercicio y Salud: Presente y Futuro en España.
Granada, 7-8 de Noviembre de 2014
Effects of Pilates on the volume of iliopsoas muscles: a longitudinal MRI study
C. Dorado, A. López-Gordillo and J. Sanchis-Moysi
Physical Education Department, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
Correo electrónico: cecilia.dorado@ulpgc.es (C. Dorado).
Palabras clave: Pilates. Iliopsoas. Muscle hypertrophy. MRI.
Aim. The purpose of the present study was to analyze the effects of Pilates on the volume of iliopsoas muscles.
Methods. Magnetic resonance imaging (MRI) was used to determine the volume of gluteal muscles in 9 non-active healthy women, before and after 36 wk of a standardized Pilates training program (50 min/session, 2 session/wk). The MRI images (L1-L2 intervertebral disc to pubic symphysis), were used to calculate the volume iliopsoas. Pre- and postraining comparisons were carried out using the paired Student's t-test. Significant differences were assumed when P < 0.05.
Results. Before Pilates, the volume of iliopsoas was similar in the dominant and in the non-dominant side (248,4 ± 43.4 vs. 251.8 ± 31.8 cm3, P = 0.4). Compared to pre-training, after Pilates the volume of iliopsoas was similar in the dominant (248,4 ± 43.4 vs 256.5 ± 31.8 cm3, respectively, P = 0.4) and in the non-dominant side (251.8 ± 31.8 vs 258.1 ± 34.0 cm3, respectively, P = 0.4). The degree of asymmetry in muscle volume between the dominant and the non-dominant side was also similar before and after Pilates (1.3 ± 4.4 vs. 0.6 ± 1.7%, respectively, p = 0.7).
Conclusion. This study shows that 36 wk of Pilates do not increase the volume of the iliopsoas muscle group in physically non-active healthy women. The iliopsoas muscles play a secondary role on lumbo-pelvic control during a standardized Pilates training program.