Influence of Scapular Position on the Core Musculature Activation in the Prone Plank Exercise

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Title: Influence of Scapular Position on the Core Musculature Activation in the Prone Plank Exercise
Authors: Cortell-Tormo, Juan M. | García-Jaén, Miguel | Chulvi Medrano, Iván | Hernández-Sánchez, Sergio | Lucas Cuevas, Ángel G. | Tortosa-Martínez, Juan
Research Group/s: Research in Physical Education, Fitness and Performance (RIPEFAP) | Grupo de Investigación en Alimentación y Nutrición (ALINUT)
Center, Department or Service: Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas
Keywords: Core stability | Surface electromyography | Bridge exercise | Pelvic tilt | Scapula
Knowledge Area: Educación Física y Deportiva
Issue Date: Aug-2017
Publisher: Wolters Kluwer
Citation: The Journal of Strength & Conditioning Research. 2017, 31(8): 2255-2262. doi:10.1519/JSC.0000000000001689
Abstract: Prone plank is a widely used exercise in core stability training. Research has shown that pelvic tilt plays an important role on the electromyographic (EMG) activation of core musculature. However, the influence of scapular position on EMG activation is currently unknown. Therefore, this study evaluated the influence of scapular position on the core muscles during a prone plank. Surface EMG of the rectus abdominis (RA), external oblique (EO), internal oblique (IO), and erector spinae (ES) was collected in 15 participants (10 men and 5 women). Four variations of the prone plank were evaluated: scapular abduction with anterior (ABANT) and posterior (ABRET) pelvic tilt; and scapular adduction with anterior (ADANT), and posterior (ADRET) pelvic tilt. Individual muscle EMG and overall EMG for each plank exercise was analyzed. Joint positions were controlled with a 2D kinematic analysis. Ratings of perceived exertion (RPE) were also registered. The ADRET resulted in higher overall EMG activity compared with ABANT (p = 0.04) and ADANT (p = 0.04). Moreover, ADRET resulted in greater EMG activity compared with ADANT, ABANT, and ABRET for EO (p = 0.000; p = 0.000; p = 0.035), IO (p = 0.000; p = 0.000; p = 0.005), and ES (p = 0.019; p = 0.001; p = 0.014). Regarding RA, ADRET was significantly higher compared with ADANT (p = 0.002) and ABANT (p = 0.005). Finally, ADRET provoked a higher RPE compared with ABANT (p = 0.000), ABRET (p = 0.001), and ADANT (p = 0.015). These findings demonstrate the influence of the scapular and pelvic position on the EMG response of the core muscle groups analyzed in this study, and highlight the greater contribution of these muscles to the postural stabilizing demands during posterior pelvic tilt positions, particularly when the scapulae are in adduction.
URI: http://hdl.handle.net/10045/74590
ISSN: 1064-8011 (Print) | 1533-4287 (Online)
DOI: 10.1519/JSC.0000000000001689
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2016 National Strength and Conditioning Association
Peer Review: si
Publisher version: https://doi.org/10.1519/JSC.0000000000001689
Appears in Collections:INV - RIPEFAP - Artículos de Revistas
INV - ALINUT - Artículos de Revistas

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