Are Core Stability Tests Related to Single Leg Squat Performance in Active Females?

Paloma Guillén-Rogel, David Barbado, Cristina Franco-Escudero, Cristina San Emeterio and Pedro J. Marín
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Paloma Guillén-Rogel: Laboratory of Physiology, Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
David Barbado: Sport Research Centre, Miguel Hernández University, 03202 Elche, Spain
Cristina Franco-Escudero: Laboratory of Physiology, Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
Cristina San Emeterio: Laboratory of Physiology, Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
Pedro J. Marín: Development Research, CYMO Research Institute, 47140 Valladolid, Spain

IJERPH, 2021, vol. 18, issue 11, 1-10

Abstract: Core stability (CS) deficits can have a significant impact on lower limb function. The aim of this study was to investigate the relationship between two dynamic core exercise assessments and dynamic knee valgus during single-leg squats. In total, 20 physically active female students participated in this study. The OCTOcore smartphone application assesses CS during two dynamic exercise tests, the partial range single-leg deadlift (SLD) test and the bird-dog (BD) test. A two-dimensional assessment of a single-leg squat test was used to quantify participants’ hip frontal angle (HFA SLS ) and knee frontal plane projection angle (FPPA SLS ). Ankle dorsiflexion was evaluated through the weight-bearing dorsiflexion test. The correlational analyses indicated that the HFA SLS was significantly related to the partial range single-leg deadlift test ( r = 0.314, p < 0.05) and ankle dorsiflexion ( r = 0.322, p < 0.05). The results showed a significant difference ( p < 0.05) in the CS test between cases categorised as dynamic knee valgus (>10°) and normal (?10°). The CS deficit may influence the neuromuscular control of the lumbopelvic-hip complex during single-leg movements. The link between CS and kinematic factors related to knee injuries was only observed when CS was measured in the SLD test but not in the BD test.

Keywords: accelerometer; assessment; lumbopelvic-hip complex; mobile technology (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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