Predictors of dynamic knee valgus during a classic ballet jump

• Grant number: 18/25391-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2019
• End date: December 31, 2019
• Field of knowledge: Health Sciences - Physiotherapy and Occupational Therapy
• Principal Investigator: Fábio Viadanna Serrão
• Grantee: Vitor Leme
• Host Institution: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

The execution of complex movements during classical ballet practice results in a high prevalence of lower limb overuse injuries. It is believed that excessive dynamic knee valgus, influenced by both proximal (hip) and distal factors (ankle-foot complex), may be related to the occurrence of these lesions. Therefore, it is important to evaluate whether these proximal and distal factors are predictors of dynamic knee valgus during a classical ballet jump. The aim of this study is to analyze whether isometric abductor hip torque (proximal factor), ankle-forefoot alignment and range of motion (ROM) of ankle dorsiflexion (distal factors) are predictors of dynamic knee valgus during a classic ballet jump. Isometric hip abductor torque, leg-forefoot alignment and ankle dorsiflexion ROM will be evaluated in 15 ballet dancers. In addition, kinematic data will be collected and analyzed during the jump. A stepwise linear regression model will be applied to check whether the hip abductor isometric torque peak, leg-forefoot alignment and ankle dorsiflexion ROM are predictors of the dynamic knee valgus peak during the classical ballet jump.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CABRAL, ANELISE MORETI; MARTINEZ, ADALBERTO FELIPE; LEME, VITOR; LUZ, BRUNA CALAZANS; SERRAO, FABIO VIADANNA. Association of Proximal and Distal Factors With Lower Limb Kinematics During a Classical Ballet Jump. JOURNAL OF SPORT REHABILITATION, v. 32, n. 2, p. 7-pg., 2023-02-01. (18/25391-6, 18/00889-1)