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Contribution of altered hip, knee and foot kinematics to dynamic postural impairments in females with patellofemoral pain during stair ascent.
Knee 2016; 23(3):376-81KNEE

Abstract

BACKGROUND

Altered hip, knee and foot kinematics have been systematically observed in individuals with patellofemoral pain (PFP). However, less attention has been given to the altered dynamic postural control associated with PFP. Additionally, the relative contribution of kinematic impairments to the postural behavior of subjects with PFP remains an open question that warrants investigation. The aims of this study were: i) to investigate possible differences in hip adduction, rearfoot eversion, knee flexion and displacement area of the center of pressure (COP) in individuals with PFP in comparison to controls during stair ascent; and (ii) to determine which kinematic parameter is the best predictor of the displacement area of the COP measured during the stance phase of the stair ascent.

METHODS

Twenty-nine females with PFP and 25 asymptomatic pain-free females underwent three-dimensional kinematic and COP analyses during stair ascent. Between-group comparisons were made using independent t-tests. Regression models were performed to identify the capability of each kinematic factor in predicting the displacement area of the COP.

RESULTS

Reduced knee flexion and displacement area of the COP as well as increased peak hip adduction and peak rearfoot eversion were observed in individuals with PFP as compared to controls. Peak hip adduction was the best predictor of the displacement area of the COP (r(2)=23.4%).

CONCLUSIONS

The excessive hip adduction was the biggest predictor of the displacement area of the COP.

CLINICAL RELEVANCE

Based on our findings, proximally targeted interventions may be of major importance for the functional reestablishment of females with PFP.

Authors+Show Affiliations

Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil.School of Arts, Sciences, and Humanities, University of Sao Paulo, Sao Paulo, Brazil.Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil.Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil.Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil.Physical Therapy Department, State University of West Parana, Cascavel, Parana, Brazil.Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil. Electronic address: micolis@fct.unesp.br.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26875045

Citation

de Oliveira Silva, Danilo, et al. "Contribution of Altered Hip, Knee and Foot Kinematics to Dynamic Postural Impairments in Females With Patellofemoral Pain During Stair Ascent." The Knee, vol. 23, no. 3, 2016, pp. 376-81.
de Oliveira Silva D, Magalhães FH, Pazzinatto MF, et al. Contribution of altered hip, knee and foot kinematics to dynamic postural impairments in females with patellofemoral pain during stair ascent. Knee. 2016;23(3):376-81.
de Oliveira Silva, D., Magalhães, F. H., Pazzinatto, M. F., Briani, R. V., Ferreira, A. S., Aragão, F. A., & de Azevedo, F. M. (2016). Contribution of altered hip, knee and foot kinematics to dynamic postural impairments in females with patellofemoral pain during stair ascent. The Knee, 23(3), pp. 376-81. doi:10.1016/j.knee.2016.01.014.
de Oliveira Silva D, et al. Contribution of Altered Hip, Knee and Foot Kinematics to Dynamic Postural Impairments in Females With Patellofemoral Pain During Stair Ascent. Knee. 2016;23(3):376-81. PubMed PMID: 26875045.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Contribution of altered hip, knee and foot kinematics to dynamic postural impairments in females with patellofemoral pain during stair ascent. AU - de Oliveira Silva,Danilo, AU - Magalhães,Fernando Henrique, AU - Pazzinatto,Marcella Ferraz, AU - Briani,Ronaldo Valdir, AU - Ferreira,Amanda Schenatto, AU - Aragão,Fernando Amâncio, AU - de Azevedo,Fábio Mícolis, Y1 - 2016/02/10/ PY - 2015/10/07/received PY - 2016/01/13/revised PY - 2016/01/15/accepted PY - 2016/2/15/entrez PY - 2016/2/15/pubmed PY - 2017/9/12/medline KW - Center of pressure KW - Knee injury KW - Patellofemoral joint KW - Postural control KW - Regression analysis SP - 376 EP - 81 JF - The Knee JO - Knee VL - 23 IS - 3 N2 - BACKGROUND: Altered hip, knee and foot kinematics have been systematically observed in individuals with patellofemoral pain (PFP). However, less attention has been given to the altered dynamic postural control associated with PFP. Additionally, the relative contribution of kinematic impairments to the postural behavior of subjects with PFP remains an open question that warrants investigation. The aims of this study were: i) to investigate possible differences in hip adduction, rearfoot eversion, knee flexion and displacement area of the center of pressure (COP) in individuals with PFP in comparison to controls during stair ascent; and (ii) to determine which kinematic parameter is the best predictor of the displacement area of the COP measured during the stance phase of the stair ascent. METHODS: Twenty-nine females with PFP and 25 asymptomatic pain-free females underwent three-dimensional kinematic and COP analyses during stair ascent. Between-group comparisons were made using independent t-tests. Regression models were performed to identify the capability of each kinematic factor in predicting the displacement area of the COP. RESULTS: Reduced knee flexion and displacement area of the COP as well as increased peak hip adduction and peak rearfoot eversion were observed in individuals with PFP as compared to controls. Peak hip adduction was the best predictor of the displacement area of the COP (r(2)=23.4%). CONCLUSIONS: The excessive hip adduction was the biggest predictor of the displacement area of the COP. CLINICAL RELEVANCE: Based on our findings, proximally targeted interventions may be of major importance for the functional reestablishment of females with PFP. SN - 1873-5800 UR - https://www.unboundmedicine.com/medline/citation/26875045/Contribution_of_altered_hip_knee_and_foot_kinematics_to_dynamic_postural_impairments_in_females_with_patellofemoral_pain_during_stair_ascent_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0968-0160(16)00015-6 DB - PRIME DP - Unbound Medicine ER -