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Relationship among eccentric hip and knee torques, symptom severity and functional capacity in females with patellofemoral pain syndrome.
Phys Ther Sport. 2011 Aug; 12(3):133-9.PT

Abstract

OBJECTIVE

To determine the relationships between eccentric hip and knee torques, symptom severity and functional capacity in females with patellofemoral pain syndrome (PFPS).

DESIGN

Within-subject correlational study.

SETTING

University biomechanics laboratory.

PARTICIPANTS

10 females diagnosed with PFPS.

MAIN OUTCOME MEASURES

Eccentric strength of the hip abductors and lateral rotators, and knee extensors were assessed using an isokinetic dynamometer. A 10-cm visual analog scale was used to determine usual knee pain in the last week. The Anterior Knee Pain Scale (AKPS) was used to determine the functional capacity of the patients.

RESULTS

The study found that the greater the eccentric knee extensor and hip lateral rotator torques, the higher the functional capacity of the patients (p = 0.02, r = 0.72; p = 0.02, r = 0.72). It was also shown that the greater hip lateral rotator torque, the less the usual pain reported in the last week (p = 0.004, r = -0.84). Despite the lack of statistical significance (p = 0.11), it was also found a modest negative relationship between the eccentric knee extensor torque and the usual pain reported in the last week (r = -0.56) that was considered clinically meaningful (d = 1.4).

CONCLUSIONS

This study showed that eccentric knee extensor and hip lateral rotator torques were associated with functional capacity and pain level in females with PFPS. Further investigations should be carried out to verify the effects of an intervention program focused on the eccentric action of these muscles with respect to the symptoms in patients with PFPS.

Authors+Show Affiliations

Department of Physical Therapy, Federal University of São Carlos, Rodovia Washington Luís, Brazil. helissa2000@yahoo.com.brNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21802040

Citation

Nakagawa, Theresa Helissa, et al. "Relationship Among Eccentric Hip and Knee Torques, Symptom Severity and Functional Capacity in Females With Patellofemoral Pain Syndrome." Physical Therapy in Sport : Official Journal of the Association of Chartered Physiotherapists in Sports Medicine, vol. 12, no. 3, 2011, pp. 133-9.
Nakagawa TH, Baldon Rde M, Muniz TB, et al. Relationship among eccentric hip and knee torques, symptom severity and functional capacity in females with patellofemoral pain syndrome. Phys Ther Sport. 2011;12(3):133-9.
Nakagawa, T. H., Baldon, R. d. e. . M., Muniz, T. B., & Serrão, F. V. (2011). Relationship among eccentric hip and knee torques, symptom severity and functional capacity in females with patellofemoral pain syndrome. Physical Therapy in Sport : Official Journal of the Association of Chartered Physiotherapists in Sports Medicine, 12(3), 133-9. https://doi.org/10.1016/j.ptsp.2011.04.004
Nakagawa TH, et al. Relationship Among Eccentric Hip and Knee Torques, Symptom Severity and Functional Capacity in Females With Patellofemoral Pain Syndrome. Phys Ther Sport. 2011;12(3):133-9. PubMed PMID: 21802040.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relationship among eccentric hip and knee torques, symptom severity and functional capacity in females with patellofemoral pain syndrome. AU - Nakagawa,Theresa Helissa, AU - Baldon,Rodrigo de Marche, AU - Muniz,Thiago Batista, AU - Serrão,Fábio Viadanna, Y1 - 2011/06/12/ PY - 2010/08/31/received PY - 2011/04/15/revised PY - 2011/04/20/accepted PY - 2011/8/2/entrez PY - 2011/8/2/pubmed PY - 2011/12/21/medline SP - 133 EP - 9 JF - Physical therapy in sport : official journal of the Association of Chartered Physiotherapists in Sports Medicine JO - Phys Ther Sport VL - 12 IS - 3 N2 - OBJECTIVE: To determine the relationships between eccentric hip and knee torques, symptom severity and functional capacity in females with patellofemoral pain syndrome (PFPS). DESIGN: Within-subject correlational study. SETTING: University biomechanics laboratory. PARTICIPANTS: 10 females diagnosed with PFPS. MAIN OUTCOME MEASURES: Eccentric strength of the hip abductors and lateral rotators, and knee extensors were assessed using an isokinetic dynamometer. A 10-cm visual analog scale was used to determine usual knee pain in the last week. The Anterior Knee Pain Scale (AKPS) was used to determine the functional capacity of the patients. RESULTS: The study found that the greater the eccentric knee extensor and hip lateral rotator torques, the higher the functional capacity of the patients (p = 0.02, r = 0.72; p = 0.02, r = 0.72). It was also shown that the greater hip lateral rotator torque, the less the usual pain reported in the last week (p = 0.004, r = -0.84). Despite the lack of statistical significance (p = 0.11), it was also found a modest negative relationship between the eccentric knee extensor torque and the usual pain reported in the last week (r = -0.56) that was considered clinically meaningful (d = 1.4). CONCLUSIONS: This study showed that eccentric knee extensor and hip lateral rotator torques were associated with functional capacity and pain level in females with PFPS. Further investigations should be carried out to verify the effects of an intervention program focused on the eccentric action of these muscles with respect to the symptoms in patients with PFPS. SN - 1873-1600 UR - https://www.unboundmedicine.com/medline/citation/21802040/Relationship_among_eccentric_hip_and_knee_torques_symptom_severity_and_functional_capacity_in_females_with_patellofemoral_pain_syndrome_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1466-853X(11)00040-X DB - PRIME DP - Unbound Medicine ER -