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Effect of augmented feedback on lower limb and trunk kinematics during a classical ballet jump: randomized controlled trial

Grant number: 18/00889-1
Support Opportunities:Scholarships in Brazil - Master
Start date: August 01, 2018
End date: March 31, 2019
Field of knowledge:Health Sciences - Physiotherapy and Occupational Therapy
Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Fábio Viadanna Serrão
Grantee:Anelise Moreti Cabral
Host Institution: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

Classical Ballet practice is associated with high prevalence of lower limb overuse injuries. Poor dynamic alignment of the lower limb and trunk is believed to be associated with these injuries. Thus, it is important to evaluate the effect of augmented feedback on dynamic alignment of the lower limb and trunk during a classical ballet jump, as well as whether hip muscle strength is predictive of improved alignment after providing feedback. The objectives of this study are to verify: 1) Whether a combined feedback session by videotape (self-model + expert-model) associated with verbal instruction is able to improve lower limb and trunk kinematics during a classical ballet jump; 2) whether this improvement is maintained after one week (retention); and 3) whether hip muscle strength is predictive of improvement. 36 ballet dancers will be randomized to the control group (CG) and will receive feedback and instructions not related to the outcomes of interest, or to the Intervention Group (IG) and will receive feedback and instructions related to lower limb and trunk kinematics. The outcomes of interest will be peak hip adduction and internal rotation, knee abduction and ipsilateral trunk lean; and hip abductors, extensors and lateral rotators isometric strength. Kinematics assessment will be conducted at baseline, immediate post-feedback and 7 days after the feedback session (retention). The effect of the intervention on kinematic variables will be analysed through a two-way (group X time) mixed analysis of variance. A stepwise linear regression will be conducted to assess the ability of hip muscle strength to predict change in each of the kinematic variables of interest. (AU)

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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., . (18/25391-6, 18/00889-1)