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Relationship between frontal plane projection angle of the knee and hip and trunk strength in women with and without patellofemoral pain.
J Back Musculoskelet Rehabil. 2016 Apr 27; 29(2):259-266.JB

Abstract

BACKGROUND

It is theorized that increased dynamic knee valgus relates to decreased hip posterolateral muscle strength.

OBJECTIVE

The aim here was to assess the relationship between the frontal plane projection angle (FPPA) of the knee and hip and trunk muscle strength in women with and without patellofemoral pain (PFP).

METHODS

The sample comprised 43 women: Patellofemoral Pain Group (PPG, n = 22) and Control Group (CG, n = 21). Muscle strength for hip abduction, extension, external rotation and lateral core were measured using a handheld dynamometer. The FPPA was recorded during step-down.

RESULTS

The PPG showed a deficit for hip muscles torque and increased FPPA (P < 0.05). Negative correlation of the FPPA-Peak was found in the CG for the hip abductor (r = -0.31) and posterolateral complex (r = -0.32) (P < 0.05). In the PPG, the FPPA-Peak showed a moderate negative correlation to the torque of external rotators and posterolateral hip muscles, although this correlation did not reach statistical significance.

CONCLUSIONS

These findings suggest that women with patellofemoral pain present greater dynamic knee valgus and hip muscle weakness. Abductor and posterolateral hip muscles strength are associated with increased FPPA only in the pain-free population.

Authors+Show Affiliations

Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, Brazil. Physical Therapy Department, Federal University of Ceará, Fortaleza, Brazil.Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, Brazil.Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, Brazil.Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, Brazil.Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, Brazil.Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, Brazil.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26406201

Citation

Almeida, Gabriel Peixoto Leão, et al. "Relationship Between Frontal Plane Projection Angle of the Knee and Hip and Trunk Strength in Women With and Without Patellofemoral Pain." Journal of Back and Musculoskeletal Rehabilitation, vol. 29, no. 2, 2016, pp. 259-266.
Almeida GP, Silva AP, França FJ, et al. Relationship between frontal plane projection angle of the knee and hip and trunk strength in women with and without patellofemoral pain. J Back Musculoskelet Rehabil. 2016;29(2):259-266.
Almeida, G. P., Silva, A. P., França, F. J., Magalhães, M. O., Burke, T. N., & Marques, A. P. (2016). Relationship between frontal plane projection angle of the knee and hip and trunk strength in women with and without patellofemoral pain. Journal of Back and Musculoskeletal Rehabilitation, 29(2), 259-266.
Almeida GP, et al. Relationship Between Frontal Plane Projection Angle of the Knee and Hip and Trunk Strength in Women With and Without Patellofemoral Pain. J Back Musculoskelet Rehabil. 2016 Apr 27;29(2):259-266. PubMed PMID: 26406201.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relationship between frontal plane projection angle of the knee and hip and trunk strength in women with and without patellofemoral pain. AU - Almeida,Gabriel Peixoto Leão, AU - Silva,Ana Paula de Moura Campos Carvalho E, AU - França,Fábio Jorge Renovato, AU - Magalhães,Maurício Oliveira, AU - Burke,Thomaz Nogueira, AU - Marques,Amélia Pasqual, PY - 2016/11/2/pubmed PY - 2017/2/7/medline PY - 2015/9/26/entrez KW - Patellofemoral joint KW - biomechanics KW - kinematic KW - knee injuries KW - muscle strength dynamometer SP - 259 EP - 266 JF - Journal of back and musculoskeletal rehabilitation JO - J Back Musculoskelet Rehabil VL - 29 IS - 2 N2 - BACKGROUND: It is theorized that increased dynamic knee valgus relates to decreased hip posterolateral muscle strength. OBJECTIVE: The aim here was to assess the relationship between the frontal plane projection angle (FPPA) of the knee and hip and trunk muscle strength in women with and without patellofemoral pain (PFP). METHODS: The sample comprised 43 women: Patellofemoral Pain Group (PPG, n = 22) and Control Group (CG, n = 21). Muscle strength for hip abduction, extension, external rotation and lateral core were measured using a handheld dynamometer. The FPPA was recorded during step-down. RESULTS: The PPG showed a deficit for hip muscles torque and increased FPPA (P < 0.05). Negative correlation of the FPPA-Peak was found in the CG for the hip abductor (r = -0.31) and posterolateral complex (r = -0.32) (P < 0.05). In the PPG, the FPPA-Peak showed a moderate negative correlation to the torque of external rotators and posterolateral hip muscles, although this correlation did not reach statistical significance. CONCLUSIONS: These findings suggest that women with patellofemoral pain present greater dynamic knee valgus and hip muscle weakness. Abductor and posterolateral hip muscles strength are associated with increased FPPA only in the pain-free population. SN - 1878-6324 UR - https://www.unboundmedicine.com/medline/citation/26406201/Relationship_between_frontal_plane_projection_angle_of_the_knee_and_hip_and_trunk_strength_in_women_with_and_without_patellofemoral_pain_ L2 - https://content.iospress.com/openurl?genre=article&amp;id=doi:10.3233/BMR-150622 DB - PRIME DP - Unbound Medicine ER -