title: Does anterior knee pain severity and function relate to the frontal plane projection angle and trunk and hip strength in women with patellofemoral pain?
abstract: The aim of the present study was to determine the relationship between knee pain severity and function with the frontal plane projection angle (FPPA) and trunk and hip peak torque (PT) in women with patellofemoral pain (PFPS). Twenty-two women with PFPS were assessed. Knee pain severity (KPS) was assessed with an 11-point visual analog scale and function with an Anterior Knee Pain Scale. The FPPA was recorded with a digital camera. PT of extensors, abductors, and the lateral rotators of hip and lateral core stability were measured with a handheld dynamometer. FPPA was the only predictor for the KPS. Regarding predictors of function, PT of lateral core stability and the extensor and abductor of the hip explained 41.4% of the function. Increase in FPPA was associated with greater KPS, and the lowest PT of lateral core stability, hip abductors, and extensors was associated with lower function in women with PFPS.
authors.affiliation: Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, SP, Brazil; Physical Therapy Department, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil. Electronic address: gabriel_alm@hotmail.com.
authors.forename: Gabriel Peixoto Leão
authors.initials: GP
authors.lastname: Almeida
authors.affiliation: Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Ana Paula de Moura Campos
authors.initials: AP
authors.lastname: Carvalho E Silva
authors.affiliation: Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Fábio Jorge Renovato
authors.initials: FJ
authors.lastname: França
authors.affiliation: Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Maurício Oliveira
authors.initials: MO
authors.lastname: Magalhães
authors.affiliation: Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Thomaz Nogueira
authors.initials: TN
authors.lastname: Burke
authors.affiliation: Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Amélia Pasqual
authors.initials: AP
authors.lastname: Marques
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D005260:Female; D006621:Hip Joint / Q000502:physiology*; D006801:Humans; D007719:Knee Joint / Q000502:physiology*; D008875:Middle Aged; D010147:Pain Measurement; D046788:Patellofemoral Pain Syndrome / Q000503:physiopathology*; D012720:Severity of Illness Index; D060726:Torso / Q000502:physiology*
keywords: Anterior knee pain; Kinematic; Knee injuries; Muscle strength dynamometer; Patellofemoral joint