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Morita ÂK, Tavella Navega M. Women with patellofemoral pain show changes in trunk and lower limb sagittal movements during single-leg squat and step-down tasks. Physiother Theory Pract 2024; 40:1933-1941. [PMID: 37387682 DOI: 10.1080/09593985.2023.2228396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 06/07/2023] [Accepted: 06/07/2023] [Indexed: 07/01/2023]
Abstract
BACKGROUND Changes in the trunk and lower limbs' sagittal movements may cause patellofemoral pain (PFP) because they influence the forces acting on this joint. OBJECTIVES To compare trunk and lower limb sagittal kinematics between women with and without PFP during functional tests and to verify whether sagittal trunk kinematics are correlated with those of the knees and ankles. METHODS A total of 30 women with PFP and 30 asymptomatic women performed single-leg squat (SLS) and step-down (SD) tests and were filmed by a camera in the sagittal plane. The trunk inclination angle, forward knee displacement, and ankle angle were calculated. RESULTS The PFP group exhibited less trunk flexion (SLS, p = .006; SD, p = .016) and greater forward knee displacement (SLS, p = .001; SD, p = .004) than the asymptomatic group; there was no significant difference in ankle angle (SLS, p = .074; SD, p = .278). Correlation analysis revealed that decreased trunk flexion was associated with increased forward knee displacement (SLS, r = -0.439, p = .000; SD, r = -0.365, p = .004) and ankle dorsiflexion (SLS, r = -0.339, p = .008; SD, r = -0.356, p = .005). CONCLUSION Women with PFP present kinematic alterations of the trunk and knee in the sagittal plane during unipodal activities. Furthermore, the trunk and lower limb sagittal movements were interdependent.
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Affiliation(s)
- Ângela Kazue Morita
- Center for Education and Health Studies, Faculty of Philosophy and Sciences, São Paulo State University (UNESP). Avenue Hygino Muzzi Filho, Marília, São Paulo, Brazil
- Postgraduate Program in Human Development and Technologies, Institute of Biosciences, São Paulo State University (UNESP). Avenue 24-A, Rio Claro, São Paulo, Brazil
| | - Marcelo Tavella Navega
- Postgraduate Program in Human Development and Technologies, Institute of Biosciences, São Paulo State University (UNESP). Avenue 24-A, Rio Claro, São Paulo, Brazil
- Department of Physical Therapy and Occupational Therapy, Faculty of Philosophy and Sciences, São Paulo State University (UNESP). Avenue Hygino Muzzi Filho, Marília, São Paulo, Brazil
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Yalfani A, Ahadi F, Ahmadi M, Asgarpoor A. Relationship between exacerbating patellofemoral pain and dynamic knee valgus in females with patellofemoral pain after a patellofemoral joint loading protocol: A cross-sectional. Phys Ther Sport 2024; 67:13-18. [PMID: 38428188 DOI: 10.1016/j.ptsp.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVE The aim of the present study is to 1) the effect of exacerbating patellofemoral pain (PFP) on dynamic knee valgus (DKV) 2) the relationship between exacerbating PFP and DKV in females with patellofemoral pain. DESIGN Cross-sectional study. METHODS Sixty women with PFP were recruited from the orthopedic clinics. We evaluated pain intensity and DKV in two conditions without (condition 1) and with (condition 2) PFJ loading during the single-leg squat (SLS) task. The MANOVA test was used to compare pain intensity and DKV angle between the two conditions. Furthermore, the Pearson correlation was used to examine the correlation between pain intensity with DKV angle. RESULTS The MANOVA analysis showed that pain intensity (P < 0.000, η2 = 0.623) and DKV angle (P < 0.000, η2 = 0.544) with a medium effect size significantly increased after PFJ loading. Furthermore, an excellent positive correlation was observed between an increase in pain intensity and DKV angle (P < 0.000, r = 0.840). CONCLUSION It seems that after the PFJ loading protocol and the subsequent pain exacerbation, the neuromuscular biomechanics of the lower limb are deficits. As a result, the stabilizing muscles activation decreases and increases the lower limb movement in the frontal plane.
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Affiliation(s)
- Ali Yalfani
- Professor, Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, Bu-ali Sina University, Hamedan, Iran.
| | - Fatemeh Ahadi
- Professor, Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, Bu-ali Sina University, Hamedan, Iran.
| | - Mohamadreza Ahmadi
- Professor, Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, Bu-ali Sina University, Hamedan, Iran.
| | - Azadeh Asgarpoor
- Professor, Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, Bu-ali Sina University, Hamedan, Iran.
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Xu J, Cai Z, Chen M, Wang X, Luo X, Wang Y. Global research trends and hotspots in patellofemoral pain syndrome from 2000 to 2023: a bibliometric and visualization study. Front Med (Lausanne) 2024; 11:1370258. [PMID: 38566926 PMCID: PMC10985266 DOI: 10.3389/fmed.2024.1370258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 03/08/2024] [Indexed: 04/04/2024] Open
Abstract
Background Patellofemoral pain syndrome (PFPS) is a prevalent condition in sports medicine, and as sports competitions become more popular, the incidence of sports injuries is on the rise. Despite the increasing research on PFPS, there remains a lack of bibliometric analyses on this topic. The aim of this study was to identify the research hotspots and trends in the field of PFPS by reviewing 23 years of literature in this field. Methods By analyzing the literature on PFPS research from 2000 to 2023 in the core dataset of the Web of Science database and utilizing bibliometric tools like CiteSpace 6.1, VOSviewer 1.6.18, R-bibliometrix 4.6.1, Pajek 5.16, and Scimago Graphica 1.0.26, our aim was to gain insights into the current status and key areas of PFPS research. The study examined various aspects including the number of publications, countries, institutions, journals, authors, collaborative networks, keywords, and more. Through the visualization of relevant data, we also attempted to forecast future trends in the field. Results There were 2,444 publications were included in this visualization study, published in 322 journals by 1,247 authors from 818 institutions in 67 countries. The Journal of Orthopaedic and Sports Physical Therapy had the highest number of publications, with the USA leading in article count. La Trobe University contributed the most articles, while Rathleff MS and Barton CJ emerged as the most prolific authors. Hip and knee strength and core strength, lower extremity kinematics and biomechanics, females (runners), muscle activation, risk factors, gait retraining, clinical practice guidelines, and rehabilitation were research hotspot keywords. Conclusion Current research suggests that there is still significant potential for the development of PFPS research. Key areas of focus include the clinical effectiveness of combined hip and knee strengthening to address PFPS, characterization of lower limb kinematics and biomechanics, gait retraining, risk factors, and clinical practice guidelines. Future research could explore the effectiveness of innovative exercise therapies such as blood flow restricting training, gait retraining, and neuromuscular control training for PFPS improvement. Further investigation into gait retraining for runners, particularly females, and clinical efficacy study of a novel PRP formulation for the treatment of PFPS.
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Affiliation(s)
- Jie Xu
- Department of Sports Medicine, Sichuan Provincial Orthopedics Hospital, Chengdu, China
| | - Zijuan Cai
- College of Physical Education and Health, Geely University of China, Chengdu, China
| | - Meng Chen
- Department of Emergency Medicine, Nanchong Hospital of Traditional Chinese Medicine, Nanchong, China
| | - Xin Wang
- Health Science Center, Peking University, Beijing, China
| | - Xiaobing Luo
- Department of Sports Medicine, Sichuan Provincial Orthopedics Hospital, Chengdu, China
| | - Yanjie Wang
- Department of Sports Medicine, Sichuan Provincial Orthopedics Hospital, Chengdu, China
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Morita ÂK, Navega MT. Activation, strength, and resistance: Which variables predict the kinematics of women with and without patellofemoral pain? J Bodyw Mov Ther 2023; 36:327-334. [PMID: 37949580 DOI: 10.1016/j.jbmt.2023.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/11/2023] [Accepted: 05/25/2023] [Indexed: 11/12/2023]
Abstract
INTRODUCTION Investigating the possible relationship between neuromuscular changes and movement alterations could help to describe the mechanisms underlying patellofemoral pain (PFP). OBJECTIVE To investigate whether activation and muscle strength of the trunk and lower limb and muscle resistance of the trunk predict the knee frontal and trunk sagittal kinematics in women with and without PFP. METHOD Sixty women (PFP, n = 30; asymptomatic, n = 30) underwent the single-leg squat test to collect electromyographic and kinematic data. Activation of transversus abdominis/internal oblique, gluteus medius (GMed), and vastus medialis oblique (VMO); knee frontal and trunk sagittal angles were analyzed. Participants also underwent maximal isometric tests to determine lateral trunk, hip abductor, and knee extensor torques and performed a lateral trunk resistance test. Multiple regression was used to determine predictive models. RESULTS In the PFP group, knee frontal angle (R2 = 0.39, p = 0.001) was predicted by GMed activation (β = 0.23, p = 0.000) and hip abductor torque (β = 0.08, p = 0.022). No variable was able to predict trunk sagittal kinematics in this group. In the asymptomatics, knee frontal angle (R2 = 0.16, p = 0.029) was predicted by hip abductor torque (β = 0.07, p = 0.029), while trunk sagittal angle (R2 = 0.24, p = 0.024) was predicted by VMO activation (β = 0.12, p = 0.016). CONCLUSION Kinematics is predicted by the muscles acting in the respective planes, such that hip abductors capacities are related to the knee frontal alignment in both groups, and that of the VMO is related to the trunk sagittal alignment only in asymptomatic women.
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Affiliation(s)
- Ângela Kazue Morita
- Postgraduate Program in Human Development and Technologies, Institute of Biosciences, São Paulo State University (UNESP), Avenue 24-A, 1515, CEP 13506-900, Rio Claro, São Paulo, Brazil; Center for Education and Health Studies, Faculty of Philosophy and Sciences, São Paulo State University (UNESP), Marília, São Paulo, Brazil.
| | - Marcelo Tavella Navega
- Postgraduate Program in Human Development and Technologies, Institute of Biosciences, São Paulo State University (UNESP), Avenue 24-A, 1515, CEP 13506-900, Rio Claro, São Paulo, Brazil; Physical Therapy and Occupational Therapy Department, Faculty of Philosophy and Sciences, São Paulo State University (UNESP), Marília, São Paulo, Brazil
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Wu CC. Patellar malalignment: A common disorder associated with knee pain. Biomed J 2023; 46:100658. [PMID: 37678711 PMCID: PMC10550501 DOI: 10.1016/j.bj.2023.100658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/23/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023] Open
Abstract
Pain-associated knee joint disorders are common in daily life. Practically, knee pain should be divided into the origin from the isolated tibiofemoral (TF), isolated patellofemoral (PF) joint, or a combination thereof. The TF joint controls the actions of level walking, while the PF joint controls knee flexion-extension. Owing to its sufficient inherent stability, non-traumatic disorders of the isolated TF joint in young individuals are uncommon. In contrast, because of its insufficient inherent stability, non-traumatic disorders of the isolated PF joint are common in young individuals. Patellar malalignment (PM) associated with knee pain is common in all age groups, and the most common predisposing factor is imbalanced peripatellar soft-tissue tension. The outward forces acting on the patella are caused by pulling from the quadriceps femoris during knee flexion to extension (manifested by the quadriceps angle [Q-angle]), and sliding backward of the iliotibial band (ITB) during knee extension to flexion. Once the muscle power of the vastus medialis (especially the vastus medialis obliquus [VMO]) decreases, which lowers the counteracting effect against outward forces, the patella displaces or rotates laterally. The reduced contact surface between the patella and the femoral condyle significantly increases the compressive pressure and injures the articular cartilage. Subsequently, progressive PF degeneration occurs. Although other factors may also cause PM, they are relatively uncommon. In principle, nonsurgical treatment of PM should be considered first, while surgical treatment should follow established indications. Some nonsurgical techniques are currently widely used that feature high satisfaction rates. Surgical techniques are continuously being developed, and their success rates have gradually improved. This study aimed to review the current literature for relevant studies and report related publications of the author's institution to emphasize the universality and importance of PM management. Conceptually, simply focusing on problems of the TF joint cannot treat all knee disorders.
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Affiliation(s)
- Chi-Chuan Wu
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan.
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Milovanović D, Begović N, Bukva B, Dučić S, Vlahović A, Paunović Z, Kadija M, Topalović N, Stijak L. The Influence of the Q-Angle and Muscle Strength on Idiopathic Anterior Knee Pain in Adolescents. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1016. [PMID: 37374224 DOI: 10.3390/medicina59061016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/15/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023]
Abstract
Background and Objectives: Idiopathic anterior knee pain is a common condition in adolescents and is mostly of unknown cause. The aim of this study was to examine the influence of the Q-angle and muscle strength on idiopathic anterior knee pain. Materials and Methods: Seventy-one adolescents (41 females and 30 males) diagnosed with anterior knee pain were included in this prospective study. The extensor strength in the knee joint and the Q-angle were monitored. The healthy extremity was used as a control. The Student's paired sample t-test was applied for testing the difference. Statistical significance was set at 0.05. Results: There was no statistically significant difference in the Q-angle value between the idiopathic AKP and the healthy extremity (p > 0.05) within the entire sample. A statistically significant higher Q-angle of the idiopathic AKP knee (p < 0.05) was obtained in the female subgroup. No statistically significant difference (p > 0.05) was found in the male subgroup. Within the male subgroup, the strength of the extensors within the knee joint of the healthy extremity had statistically significant higher values than the strength of these muscles in the affected extremity (p < 0.05). Conclusion: A greater Q-angle is a risk factor linked to anterior knee pain within the female population. Decreased muscle strength of knee joint extensors is a risk factor linked to anterior knee pain in both sex subgroups.
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Affiliation(s)
- Darko Milovanović
- Clinic for Orthopedic Surgery and Traumatology, Clinical Center of Serbia, Pasterova 2, 11000 Belgrade, Serbia
- School of Medicine, University of Belgrade, dr Subotića 8, 11000 Belgrade, Serbia
| | - Ninoslav Begović
- School of Medicine, University of Belgrade, dr Subotića 8, 11000 Belgrade, Serbia
- Institute for Mother and Child Health Care of Serbia, Radoja Dakica 6-8, 11070 Belgrade, Serbia
| | - Bojan Bukva
- School of Medicine, University of Belgrade, dr Subotića 8, 11000 Belgrade, Serbia
- University Children's Hospital, Tiršova 10, 11000 Belgrade, Serbia
| | - Siniša Dučić
- School of Medicine, University of Belgrade, dr Subotića 8, 11000 Belgrade, Serbia
- University Children's Hospital, Tiršova 10, 11000 Belgrade, Serbia
| | - Aleksandar Vlahović
- School of Medicine, University of Belgrade, dr Subotića 8, 11000 Belgrade, Serbia
- Institute for Mother and Child Health Care of Serbia, Radoja Dakica 6-8, 11070 Belgrade, Serbia
| | - Zoran Paunović
- School of Medicine, University of Belgrade, dr Subotića 8, 11000 Belgrade, Serbia
- Institute for Mother and Child Health Care of Serbia, Radoja Dakica 6-8, 11070 Belgrade, Serbia
| | - Marko Kadija
- Clinic for Orthopedic Surgery and Traumatology, Clinical Center of Serbia, Pasterova 2, 11000 Belgrade, Serbia
- School of Medicine, University of Belgrade, dr Subotića 8, 11000 Belgrade, Serbia
| | - Nikola Topalović
- Institute of Medical Physiology, Faculty of Medicine, University of Belgrade, Visegradska 26/II, 11000 Belgrade, Serbia
| | - Lazar Stijak
- Department for Anatomy, School of Medicine, University of Belgrade, dr Subotića 8, 11000 Belgrade, Serbia
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Matsuzaki Y, Heath MR, Khan JM, Mackie AT, Spitzer E, Fabricant PD. Reliability of 2-Dimensional Video Analysis in Adolescent Runners. HSS J 2022; 18:512-518. [PMID: 36263278 PMCID: PMC9527543 DOI: 10.1177/15563316221082011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/26/2021] [Indexed: 02/07/2023]
Abstract
Background The literature on the reliability of qualitative and quantitative measures for running video analysis in the adolescent population is limited. Reliability of 2-dimensional (2D) video analysis has been reported in adult runners, but these findings may not apply to youth runners. Purpose We sought to determine the intra-rater and inter-rater reliability of sagittal and frontal plane kinematics using 2D video analysis in healthy adolescent runners. Methods High-definition (1080p) videos were recorded of 10 healthy runners between 14 and 18 years old running on a treadmill at self-selected speed with markers attached to the cervical spine, pelvis, and lower extremities. Kinematic variables in the sagittal and frontal planes were measured using Dartfish Motion Analysis Software by 3 raters (2 sports medicine physical therapists and a research assistant). Intra- and inter-rater reliability were calculated using intraclass correlation coefficients (ICCs). Results Of the 10 runners, 4 (40%) were male and the mean age was 16 ± 1.5 years. The intra-rater ICC for all kinematic variables ranged from 0.574 to 0.999 for the experienced physical therapist, and 0.367 to 0.973 for the inexperienced research assistant. The inter-rater ICC for all raters ranged from -0.01 to 0.941. Eleven kinematic variables showed substantial agreement and 4 showed almost perfect agreement. Step width and foot progression showed fair and poor agreement, respectively. Conclusions Running analysis using 2D video can be performed reliably in adolescents on all kinematic variables except for step width and foot progression. Inexperienced raters can be properly trained in the video analysis of running kinematics to consistently assess the same runner.
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Affiliation(s)
- Yukiko Matsuzaki
- Department of Pediatric Rehabilitation, Department of Sports Rehabilitation and Performance, Hospital for Special Surgery, New York, NY, USA
- Department of Sports Rehabilitation and Performance, Hospital for Special Surgery, New York, NY, USA
| | - Madison R. Heath
- Division of Pediatric Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Julianne M. Khan
- Department of Sports Rehabilitation and Performance, Hospital for Special Surgery, New York, NY, USA
| | - Alexandra T. Mackie
- Department of Pediatric Rehabilitation, Department of Sports Rehabilitation and Performance, Hospital for Special Surgery, New York, NY, USA
| | | | - Peter D. Fabricant
- Division of Pediatric Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA
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Pompeo KD, da Rocha ES, Morales AB, Klein KD, Vaz MA. Does forward step-down task frontal kinematics differ in women with and without patellofemoral pain? A cross-sectional study. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-021-00869-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Skouras AZ, Kanellopoulos AK, Stasi S, Triantafyllou A, Koulouvaris P, Papagiannis G, Papathanasiou G. Clinical Significance of the Static and Dynamic Q-angle. Cureus 2022; 14:e24911. [PMID: 35698708 PMCID: PMC9186474 DOI: 10.7759/cureus.24911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2022] [Indexed: 11/13/2022] Open
Abstract
Q-angle represents the resultant force vector of the quadriceps and patellar tendons acting on the patella. An increased Q-angle has been considered a risk factor for many disorders and injuries. This literature review challenges the clinical value of static Q-angle and recommends a more dynamic movement evaluation for making clinical decisions. Although there are many articles about static Q-angle, few have assessed the value of dynamic Q-angle. We searched Scopus and PubMed (until September 2021) to identify and summarize English-language articles evaluating static and dynamic Q-angle, including articles for dynamic knee valgus (DKV) and frontal plane projection angle. We also used textbooks and articles from references to related articles. Although static Q-angle measurement is used systematically in clinical practice for critical clinical decisions, its interpretation and clinical translation present fundamental and intractable limitations. To date, it is acceptable that mechanisms that cause patellofemoral pain and athletic injuries have a stronger correlation with dynamic loading conditions. Dynamic Q-angle has the following three dynamic elements: frontal plane (hip adduction, knee abduction), transverse plane (hip internal rotation and tibia external rotation), and patella behavior. Measuring one out of three elements (frontal plane) illustrates only one-third of this concept. Static Q-angle lacks biomechanical meaning and utility for dynamic activities. Although DKV is accompanied by hip and tibia rotation, it remains a frontal plane measurement, which provides no information about the transverse plane and patella movement. However, given the acceptable reliability and the better differentiation capability, DKV assessment is recommended in clinical practice.
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Affiliation(s)
- Apostolos Z Skouras
- Sports Excellence, 1st Department of Orthopaedic Surgery, National and Kapodistrian University of Athens School of Medicine, Athens, GRC
- Biomechanics and Gait Analysis Laboratory "Sylvia Ioannou", Orthopaedic Research and Education Center "P.N.Soukakos", 1st Department of Orthopaedic Surgery, National and Kapodistrian University of Athens School of Medicine, Athens, GRC
| | | | - Sophia Stasi
- Laboratory of Neuromucsular and Cardiovascular Study of Motion (LANECASM), University of West Attica, Athens, GRC
- Department of Physiotherapy, University of West Attica, Athens, GRC
| | - Athanasios Triantafyllou
- Biomechanics and Gait Analysis Laboratory "Sylvia Ioannou", Orthopaedic Research and Education Center "P.N.Soukakos", 1st Department of Orthopaedic Surgery, National and Kapodistrian University of Athens School of Medicine, Athens, GRC
- Laboratory of Neuromucsular and Cardiovascular Study of Motion (LANECASM), University of West Attica, Athens, GRC
| | - Panagiotis Koulouvaris
- Sports Excellence, 1st Department of Orthopaedic Surgery, National and Kapodistrian University of Athens School of Medicine, Athens, GRC
- Biomechanics and Gait Analysis Laboratory "Sylvia Ioannou", Orthopaedic Research and Education Center "P.N.Soukakos", 1st Department of Orthopaedic Surgery, National and Kapodistrian University of Athens School of Medicine, Athens, GRC
| | - Georgios Papagiannis
- Laboratory of Neuromucsular and Cardiovascular Study of Motion (LANECASM), University of West Attica, Athens, GRC
- Department of Physiotherapy, University of the Peloponnese, Sparta, GRC
- Biomechanics and Gait Analysis Laboratory "Sylvia Ioannou", Orthopaedic Research and Education Center "P.N.Soukakos", 1st Department of Orthopaedic Surgery, National and Kapodistrian University of Athens School of Medicine, Athens, GRC
| | - George Papathanasiou
- Laboratory of Neuromucsular and Cardiovascular Study of Motion (LANECASM), University of West Attica, Athens, GRC
- Department of Physiotherapy, University of West Attica, Athens, GRC
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Liu J, Powers CM. Classification of Runners with High versus Low Hip Adduction based on Measures of Pelvis and Femur Morphology. Med Sci Sports Exerc 2021; 54:590-597. [PMID: 34772902 DOI: 10.1249/mss.0000000000002826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE To determine the most relevant pelvis and femur morphological characteristics for differentiating runners with high versus low hip adduction during running. METHODS Fifteen female and 14 male runners underwent instrumented kinematics analysis of overground running and computed tomography scanning of pelvis and femur. The peak hip adduction angle during the stance phase of running was identified for each participant. Using the cohort average of the peak hip adduction angle as the classifying threshold, participants were categorized into high or low hip adduction groups. To determine the most relevant morphologic features for discriminating high and low hip adduction runners, a feature selection-based support vector machine classification analysis was performed. RESULTS Out of 15 morphology variables examined, femoral head anteversion and femur length were shown to be the best discriminant variables for group classification. Together, these variables achieved a prediction accuracy of 0.93, sensitivity of 1.0, and specificity of 0.88. CONCLUSION Our results highlight the importance of femur morphology in contributing to increased hip adduction during running.
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Affiliation(s)
- Jia Liu
- Division of Biokinesiology and Physical Therapy University of Southern California, Los Angeles, CA
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11
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Liu J, Lewton KL, Colletti PM, Powers CM. Hip Adduction during Running: Influence of Sex, Hip Abductor Strength and Activation, and Pelvis and Femur Morphology. Med Sci Sports Exerc 2021; 53:2346-2353. [PMID: 34107513 DOI: 10.1249/mss.0000000000002721] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE To examine the influence of hip abductor strength, neuromuscular activation, and pelvis and femur morphology in contributing to sex differences in hip adduction during running. In addition, we sought to determine the best predictors of hip adduction during running for both men and women. METHODS Fifteen female runners and 14 male runners underwent strength testing, instrumented overground running (e.g., kinematics and muscle activation), and computed tomography scanning of pelvis and femur. Morphologic measurements included bilateral hip width to femur length ratio, acetabulum abduction, acetabulum anteversion, femoral anteversion, and femoral neck-shaft angles. Sex differences for all variables were examined using independent t tests. Linear regression was used to assess the ability of each independent variable of interest to predict peak hip adduction during the late swing and stance phase of running. RESULTS Compared with men, women exhibited significantly greater peak hip adduction during both late swing (8.5° ± 2.6° vs 6.2° ± 2.8°, P = 0.04) and stance phases of running (13.4° ± 4.2° vs 10.0° ± 3.2°, P = 0.02). In addition, women exhibited significantly lower hip abductor strength (1.8 ± 0.3 vs 2.0 ± 0.3 N·m·kg-1, P = 0.04), greater femoral neck-shaft angles (134.1° ± 5.0° vs 129.9° ± 4.1°, P = 0.01), and greater hip width to femur length ratios than men (0.44 ± 0.02 vs 0.42 ± 0.03, P = 0.03). Femoral anteversion was the only significant predictor of peak hip adduction during late swing (r = 0.36, P = 0.05) and stance (r = 0.41, P = 0.03). CONCLUSIONS Our findings highlight the contribution of femur morphology as opposed to hip abductor strength and activation in contributing to hip adduction during running.
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Affiliation(s)
- Jia Liu
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA
| | | | - Patrick M Colletti
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Christopher M Powers
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA
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Suits WH. Clinical Measures of Pelvic Tilt in Physical Therapy. Int J Sports Phys Ther 2021; 16:1366-1375. [PMID: 34631258 PMCID: PMC8486407 DOI: 10.26603/001c.27978] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 08/19/2021] [Indexed: 01/18/2023] Open
Abstract
Pelvic tilt refers to the spatial position or motion of the pelvis about a frontal horizontal axis on the rest of the body in the sagittal plane. It is relevant for several musculoskeletal conditions commonly seen in physical therapist practice, particularly conditions affecting the hip and groin. Despite the relevance of pelvic tilt identified in biomechanical studies, and the historical precedence for assessing pelvic tilt, there is a lack of clarity regarding the utility of clinical measures that are practical in a rehabilitation setting. There are several options available to assess pelvic tilt which are discussed in detail in this commentary. All of these options come with potential benefits and considerable limitations. The purpose of this commentary is to provide an overview of the relevance of understanding pelvic tilt in the pathology and rehabilitation of conditions affecting the hip joint, with a focus applying evidence towards identifying clinical measures that may be useful in the rehabilitation setting and considerations that are needed with these measures. LEVEL OF EVIDENCE 5.
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Briani RV, Cannon J, Waiteman MC, Negrão Filho RDF, Magalhães FH, de Azevedo FM. Influence of the exacerbation of patellofemoral pain on trunk kinematics and lower limb mechanics during stair negotiation. Gait Posture 2021; 83:83-87. [PMID: 33099135 DOI: 10.1016/j.gaitpost.2020.10.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/18/2020] [Accepted: 10/11/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Although it is assumed that the presence of patellofemoral pain (PFP) may result in compensatory behaviors that can alter trunk kinematics and lower limb mechanics, the influence of the exacerbation of patellofemoral pain on trunk kinematics and lower limb mechanics during stair negotiation has not been established. RESEARCH QUESTION Does the exacerbation of PFP symptoms lead to altered trunk kinematics and lower limb mechanics during stair negotiation? METHODS Three-dimensional kinematics and kinetics were obtained from 45 women with PFP during stair descent and ascent. Data were obtained before and after a pain exacerbation protocol. The variables of interest were peak trunk, hip, and knee flexion, and ankle dorsiflexion; peak hip, and knee extensor, and ankle plantarflexor moments. Paired t-tests were used to compare the variables of interest before and after pain exacerbation. RESULTS Following pain exacerbation, there was a decrease in peak knee extensor moment during stair descent (Effect size = -0.68; p = 0.01) and stair ascent (Effect size = -0.56; p = 0.02); as well as in peak ankle dorsiflexion during stair descent (Effect size = -0.33; p = 0.01) and stair ascent (Effect size = -0.30; p = 0.01). An increase in ankle plantarflexor moment during stair descent (Effect size = 0.79; p < 0.01) and stair ascent (Effect size = 0.89; p < 0.01) was also observed. No significant differences were observed for peak trunk, hip, and knee flexion or hip extensor moment (p > 0.05). SIGNIFICANCE Our findings show compensatory strategies used by people with PFP in response to symptoms exacerbation that may have a negative impact on knee and ankle mechanics. Our findings also suggest that people with PFP do not seem to change their trunk, hip, and knee flexion or hip extensor moment during stair negotiation in response to symptom exacerbation.
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Affiliation(s)
- Ronaldo Valdir Briani
- Laboratory of Biomechanics and Motor Control (LABCOM), School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente, Sao Paulo, Brazil.
| | - Jordan Cannon
- Musculoskeletal Biomechanics Research Laboratory, Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, California, United States
| | - Marina Cabral Waiteman
- Laboratory of Biomechanics and Motor Control (LABCOM), School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente, Sao Paulo, Brazil
| | - Rúben de Faria Negrão Filho
- Laboratory of Biomechanics and Motor Control (LABCOM), School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente, Sao Paulo, Brazil
| | - Fernando Henrique Magalhães
- Laboratory of Biomechanics and Motor Control (LABCOM), School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente, Sao Paulo, Brazil; Exercise Neuroscience Research Group, School of Arts, Sciences and Humanities, University of São Paulo, Sao Paulo, Brazil
| | - Fábio Mícolis de Azevedo
- Laboratory of Biomechanics and Motor Control (LABCOM), School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente, Sao Paulo, Brazil
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Patellofemoral Pain Syndrome and Pain Severity Is Associated With Asymmetry of Gluteus Medius Muscle Activation Measured Via Ultrasound. Am J Phys Med Rehabil 2020; 99:595-601. [DOI: 10.1097/phm.0000000000001367] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Denızoglu Kulli H, Yeldan I, Yildirim NU. Influence of quadriceps angle on static and dynamic balance in young adults. J Back Musculoskelet Rehabil 2020; 32:857-862. [PMID: 30932878 DOI: 10.3233/bmr-181332] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Changes in postural stability may be a reason for injuries in individuals who have altered musculoskeletal alignment. Q angle (QA) has shown to be a predictor for lower extremity injuries. However, the relationship between balance and QA has not been investigated in young adults. OBJECTIVE The aim of the study was to investigate the relationship between QA and balance in young adults. METHODS Ninety participants performed the single leg stance test (SLST) and Star Excursion Balance Test (SEBT) to assess static and dynamic balance, respectively. QA was measured using a manual goniometer. Participants were divided into low, normal and high QA groups. RESULTS The relationship between SLST and QA was not statistically significant in both eyes opened and closed condition (r=-0.030, p= 0.782; r= 0.031, p= 0.774; respectively). SLST scores did not differ among the three groups in both eyes opened and closed condition (p= 0.781, p= 0.790; respectively). QA significantly correlated with lateral, posterolateral directions and sum score of SEBT (r= 0.240, p= 0.023; r= 0.269, p= 0.010; r= 0.210, p= 0.047). The comparisons among the low, normal and high Q angle groups' SEBT scores showed that balance performance in lateral direction was poorer in low QA group (p= 0.027). CONCLUSIONS The results of the study showed that QA and dynamic balance have a significant relationship. To reduce musculoskeletal injury risk, the dynamic balance should be assessed in young adults who have lower QA.
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Affiliation(s)
- Hilal Denızoglu Kulli
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Bezmialem Vakıf University, Istanbul, Turkey
| | - Ipek Yeldan
- Department of Physiotherapy and Rehabilitation, Division of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Necmiye Un Yildirim
- Department of Physiotherapy and Rehabilitation, Gulhane Faculty of Health Sciences, Health Science University, Ankara, Turkey
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Wei RX, Au IPH, Lau FOY, Zhang JH, Chan ZYS, MacPhail AJC, Mangubat AL, Pun G, Cheung RTH. Running biomechanics before and after Pose® method gait retraining in distance runners. Sports Biomech 2019; 20:958-973. [PMID: 31364959 DOI: 10.1080/14763141.2019.1624812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Pose® Method gait retraining has been claimed to modify running form and prevent injury. This study examined the running biomechanics before and after Pose® Method gait retraining. Fourteen runners underwent a 4-week Pose® Method gait retraining program delivered by a certified coach. Paired t-tests were employed to compare vertical average (VALR) and instantaneous loading rates (VILR), lower limb kinematics, footstrike angle and trunk flexion in the sagittal plane before and after the training. Kinetically, there were no significant differences in the VALR (p= 0.693) and VILR (p= 0.782) before and after the training. Kinematically, participants exhibited greater peak hip flexion (p= 0.008) and knee flexion (p= 0.003) during swing. Footstrikeangle also reduced significantly (p= 0.008), indicating a footstrike pattern switch from rearfoot strike to midfoot strike. There was no significant difference in the trunk flexion in the sagittal plane after training (p= 0.658). After a course of Pose® Method gait retraining, runners demonstrated a footstrike pattern switch and some kinematics changes at the hip and knee joint during swing. However, injury-related biomechanical markers (e.g., VALR and VILR) and the trunk kinematics remained similar after training. Runners may consider other gait retraining programs for impact loading reduction.
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Affiliation(s)
- Rachel X Wei
- Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung hom, Hong Kong
| | - Ivan P H Au
- Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung hom, Hong Kong
| | - Fannie O Y Lau
- Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung hom, Hong Kong
| | - Janet H Zhang
- Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung hom, Hong Kong
| | - Zoe Y S Chan
- Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung hom, Hong Kong
| | - Aislinn J C MacPhail
- Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung hom, Hong Kong
| | - Anamaria L Mangubat
- Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung hom, Hong Kong
| | - Gabriel Pun
- Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung hom, Hong Kong
| | - Roy T H Cheung
- Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung hom, Hong Kong
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Hu H, Zheng Y, Liu X, Gong D, Chen C, Wang Y, Peng M, Wu B, Wang J, Song G, Zhang J, Guo J, Dong Y, Wang X. Effects of neuromuscular training on pain intensity and self-reported functionality for patellofemoral pain syndrome in runners: study protocol for a randomized controlled clinical trial. Trials 2019; 20:409. [PMID: 31288849 PMCID: PMC6617607 DOI: 10.1186/s13063-019-3503-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 06/09/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Patellofemoral pain syndrome (PFPS) is common and affects approximately 15% of individuals at different ages and activity levels. As a non-surgical intervention, physiotherapy is widely used to treat PFPS. Neuromuscular training exercise is one of the most effective methods for decreasing musculoskeletal pain and improving knee function. However, the effectiveness of neuromuscular training exercise for treating PFPS is not without argument. The purpose of this study is to evaluate the effect of neuromuscular training exercise on patellofemoral pain and whether the neuromuscular training exercise have more advantage effects than taping and health education. METHODS We will operate a prospective, single-blind, randomized controlled trial of 60 patients with patellofemoral pain. Individuals will be indiscriminately assigned to two intervention groups and a health education group. The neuromuscular training exercise which includes the muscle strength training, balance training and knee joint proprioception training, and taping group will use "Y" and "I" type taping on the participants three times a week for three months. The health education group will be given education lectures once each week and which last for three months. The primary outcome measures include the adverse events, visual analog scale for pain, and Anterior Knee Pain Scale Index, which is a knee function self-report questionnaire to evaluate the function of the knee especially for PFPS patients. The secondary outcome measures are the muscle strength and endurance of knee joint flexion and extensor muscles, knee joint proprioception, muscle thickness of the quadriceps femoris, knee function ability, and quality of life. We will manage the intention-to-treat analysis for individuals who will withdraw from this study. DISCUSSION According to previous studies, neuromuscular training exercise and the taping method are effective treatment for PFPS patients. In this study, we will perform a neuromuscular training exercise for patients with PFPS. We believe that this study may prove the effectiveness of neuromuscular training exercise in treating PFPS. TRIAL REGISTRATION Chinese Clinical Trial Registry, ChiCTR1800014995 . Registered on 27 February 2018.
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Affiliation(s)
- Haoyu Hu
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Yili Zheng
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Xiaochen Liu
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Di Gong
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Changcheng Chen
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Yizu Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Mengsi Peng
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Bao Wu
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Juan Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Ge Song
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Juan Zhang
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Jiabao Guo
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Yulin Dong
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Xueqiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China. .,Department of Rehabilitation Medicine, Shanghai Shangti Orthopedics Hospital, Shanghai, 200438, China.
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Abalo-Núñez R, Gutiérrez-Sánchez A, Iglesias Pérez M, Vernetta-Santana M. Injury prediction in aerobic gymnastics based on anthropometric variables. Sci Sports 2018. [DOI: 10.1016/j.scispo.2018.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Briani RV, Pazzinatto MF, Waiteman MC, de Oliveira Silva D, de Azevedo FM. Association between increase in vertical ground reaction force loading rate and pain level in women with patellofemoral pain after a patellofemoral joint loading protocol. Knee 2018; 25:398-405. [PMID: 29655902 DOI: 10.1016/j.knee.2018.03.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 09/11/2017] [Accepted: 03/12/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND The etiology of patellofemoral pain (PFP) is thought to be the result of increased patellofemoral joint (PFJ) load and aberrant lower extremity mechanics, including altered vertical ground reaction forces (VGRF). However, few studies have investigated the association between an increase in pain and VGRF loading rates in the context of PFP. Thus, this study aimed to investigate the immediate effects of PFJ loading on pain and VGRF loading rate, and to see if there is a link between modification of both pain and VGRF loading rate during stair negotiation. METHODS Thirty-four women with PFP underwent VGRF analysis during stair negotiation under two conditions: with (condition 2) and without (condition 1) being previously submitted to a PFJ loading protocol in order to or not to exacerbate their knee pain, respectively. RESULTS The VGRF loading rates were significantly higher in condition 2 (Mean ± standard deviation (SD)=4.0±0.6N/s) compared to condition 1 (Mean±SD=3.6±0.5N/s) during stair ascent and during stair descent (Mean±SD: condition 1=6.3±1.1N/s; condition 2=7.0±1.4N/s). In addition, VGRF loading rates were higher during stair descent compared to stair ascent in both conditions. There were significant correlations between the increase in pain and VGRF loading rate during both tasks. CONCLUSION There seemed to be an important relation between the increase in pain and VGRF loading rates in women with PFP. Based on these findings, interventions aimed at reducing VGRF loading rates are important in the context of PFP.
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Affiliation(s)
- Ronaldo Valdir Briani
- Physical Therapy Department, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, Brazil
| | - Marcella Ferraz Pazzinatto
- Physical Therapy Department, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, Brazil; La Trobe University, School of Allied Health, La Trobe Sports and Exercise Medicine Research Centre (LASEM), Melbourne, Australia
| | - Marina Cabral Waiteman
- Physical Therapy Department, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, Brazil
| | - Danilo de Oliveira Silva
- Physical Therapy Department, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, Brazil; La Trobe University, School of Allied Health, La Trobe Sports and Exercise Medicine Research Centre (LASEM), Melbourne, Australia
| | - Fábio Mícolis de Azevedo
- Physical Therapy Department, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, Brazil.
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Ferrari D, Briani RV, de Oliveira Silva D, Pazzinatto MF, Ferreira AS, Alves N, de Azevedo FM. Higher pain level and lower functional capacity are associated with the number of altered kinematics in women with patellofemoral pain. Gait Posture 2018; 60:268-272. [PMID: 28712512 DOI: 10.1016/j.gaitpost.2017.07.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 07/05/2017] [Accepted: 07/07/2017] [Indexed: 02/02/2023]
Abstract
This study investigated whether women with patellofemoral pain (PFP) present kinematic alterations in proximal, local, and distal factors simultaneously, and determined the association between the number of kinematic alterations, pain level, and functional status. A three-dimensional motion analysis system was used to analyze the peak hip adduction, peak knee flexion, and peak rearfoot eversion, addressing the proximal, local, and distal factors, respectively, in fifty women. Functional status and pain level were assessed using the anterior knee pain scale (AKPS) and a visual analogic scale. Receiver operating characteristic curves were calculated to identify participants with and without kinematic alterations and the number of them was obtained for each participant. Associations between the number of kinematic alterations, pain level, and AKPS score were determined by the Pearson correlation. Results showed that 52% of women with PFP presented at least two kinematic alterations of which 24% were local/proximal, 16% local/distal, and 12% proximal/distal. Three kinematic alterations were found in 48% of the women with PFP. A strong positive correlation was found between the number of kinematic alterations and pain (r=0.78; p<0.001). A strong negative correlation was found between the number of altered kinematics and functional status (r=-0.79; p<0.001). Findings revealed that women with PFP presented at least two kinematic alterations and a higher number of kinematic alterations was associated with higher pain levels and lower functional status. Clinicians should carefully assess movement pattern of women with PFP as it could indicate a more severe condition, which is associated with a poor prognosis.
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Affiliation(s)
- Deisi Ferrari
- University of São Paulo, Post-Graduation Program Interunits Bioengineering EESC/FMRP/IQSC-USP, São Carlos, Brazil; Educational Faculty of Francisco Beltrão, Physical Therapy Department, Francisco Beltrão, Brazil.
| | - Ronaldo Valdir Briani
- University of São Paulo State, School of Science and Technology, Physical Therapy Department, Presidente Prudente, Brazil.
| | - Danilo de Oliveira Silva
- University of São Paulo State, School of Science and Technology, Physical Therapy Department, Presidente Prudente, Brazil.
| | - Marcella Ferraz Pazzinatto
- University of São Paulo State, School of Science and Technology, Physical Therapy Department, Presidente Prudente, Brazil.
| | - Amanda Schenatto Ferreira
- University of São Paulo State, School of Science and Technology, Physical Therapy Department, Presidente Prudente, Brazil.
| | - Neri Alves
- University of São Paulo, Post-Graduation Program Interunits Bioengineering EESC/FMRP/IQSC-USP, São Carlos, Brazil; University of São Paulo State, School of Science and Technology, Physical Therapy Department, Presidente Prudente, Brazil.
| | - Fábio Mícolis de Azevedo
- University of São Paulo State, School of Science and Technology, Physical Therapy Department, Presidente Prudente, Brazil.
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Carlson VR, Boden BP, Shen A, Jackson JN, Yao L, Sheehan FT. The Tibial Tubercle-Trochlear Groove Distance Is Greater in Patients With Patellofemoral Pain: Implications for the Origin of Pain and Clinical Interventions. Am J Sports Med 2017; 45:1110-1116. [PMID: 28056523 PMCID: PMC6010059 DOI: 10.1177/0363546516681002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The distance between the tibial tubercle (TT) and trochlear groove (TT-TG distance) is known to be greater in patients with patellar instability. However, the potential role and prevalence of pathological TT-TG distances in a large cohort of skeletally mature patients with isolated patellofemoral pain (PFP) are not clear. PURPOSE To determine if the mean TT-TG distance is greater in patients with PFP, who lack a history of patellar dislocations, knee trauma, or osteoarthritis, relative to healthy controls. STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS A total of 50 knees (38 patients) with PFP and 60 knees (56 controls) without PFP formed the basis of this study. Magnetic resonance imaging was used to determine the TT-TG distance from 3-dimensional static scans. RESULTS The cohort with PFP demonstrated a significantly greater mean TT-TG distance relative to asymptomatic controls (13.0 vs 10.8 mm, respectively; P = .001). Among the cohort with PFP, 15 knees (30%) demonstrated TT-TG distances ≥15 mm, and 3 knees (6%) demonstrated TT-TG distances ≥20 mm. CONCLUSION Most adult patients with isolated PFP have elevated TT-TG distances compared with controls, which likely contributes to the force imbalance surrounding the knee.
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Affiliation(s)
- Victor R. Carlson
- Functional and Applied Biomechanics Section, Department of Rehabilitation Medicine, NIH, Bethesda, Maryland
| | - Barry P. Boden
- The Orthopaedic Center, A Division of CAO, Rockville, Maryland
| | - Aricia Shen
- Functional and Applied Biomechanics Section, Department of Rehabilitation Medicine, NIH, Bethesda, Maryland
| | - Jennifer N. Jackson
- Functional and Applied Biomechanics Section, Department of Rehabilitation Medicine, NIH, Bethesda, Maryland
| | - Larry Yao
- Functional and Applied Biomechanics Section, Department of Rehabilitation Medicine, NIH, Bethesda, Maryland
| | - Frances T. Sheehan
- Functional and Applied Biomechanics Section, Department of Rehabilitation Medicine, NIH, Bethesda, Maryland
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Pazzinatto MF, de Oliveira Silva D, Pradela J, Coura MB, Barton C, de Azevedo FM. Local and widespread hyperalgesia in female runners with patellofemoral pain are influenced by running volume. J Sci Med Sport 2017; 20:362-367. [DOI: 10.1016/j.jsams.2016.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 08/10/2016] [Accepted: 09/11/2016] [Indexed: 11/29/2022]
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Briani RV, Pazzinatto MF, De Oliveira Silva D, Azevedo FM. Different pain responses to distinct levels of physical activity in women with patellofemoral pain. Braz J Phys Ther 2017; 21:138-143. [PMID: 28460712 PMCID: PMC5537465 DOI: 10.1016/j.bjpt.2017.03.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/18/2016] [Accepted: 05/09/2016] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Physical activity levels seem to play a role in patellofemoral pain (PFP); however, few studies have been conducted to confirm this hypothesis. OBJECTIVES To determine the reported pain levels of women with and without PFP who maintain different levels of physical activity; to determine the capability of these levels to predict pain; and to test the capability of two stair-negotiation protocols, with and without external load, to equalize pain between groups. METHOD Four groups were divided based on the women's physical activity levels: moderate activity PFP group (28), moderate activity control group (23), intense activity PFP group (22), and intense activity control group (22). All participants were asked to perform 15 repetitions of stair negotiation with and without external load on a seven-step staircase on two separate days. Pain levels were reported using a visual analog scale at five distinct moments: previous month, before stair negotiation, after stair negotiation, before patellofemoral joint (PFJ) loading protocol, and after PFJ loading protocol. RESULTS The intense activity PFP group showed higher levels of pain than the moderate activity PFP group (F(8,158)=11.714, p=0.000, η2=0.30). The PFJ loading protocol was able to equalize and exacerbate pain in the PFP groups. CONCLUSION Intense physical activity seems to have a higher association with knee pain than moderate physical activity. A PFJ loading protocol may be an alternative to equalize pain in women with PFP during clinical assessments.
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Affiliation(s)
- Ronaldo V Briani
- Departamento de Fisioterapia, Faculdade de Ciências e Tecnologia (FCT), Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Presidente Prudente, SP, Brazil
| | - Marcella F Pazzinatto
- Departamento de Fisioterapia, Faculdade de Ciências e Tecnologia (FCT), Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Presidente Prudente, SP, Brazil
| | - Danilo De Oliveira Silva
- Departamento de Fisioterapia, Faculdade de Ciências e Tecnologia (FCT), Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Presidente Prudente, SP, Brazil
| | - Fábio M Azevedo
- Departamento de Fisioterapia, Faculdade de Ciências e Tecnologia (FCT), Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Presidente Prudente, SP, Brazil.
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de Oliveira Silva D, Magalhães FH, Faria NC, Ferrari D, Pazzinatto MF, Pappas E, de Azevedo FM. Vastus Medialis Hoffmann Reflex Excitability Is Associated With Pain Level, Self-Reported Function, and Chronicity in Women With Patellofemoral Pain. Arch Phys Med Rehabil 2017; 98:114-119. [DOI: 10.1016/j.apmr.2016.06.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 06/19/2016] [Accepted: 06/20/2016] [Indexed: 01/25/2023]
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de Oliveira Silva D, Magalhães FH, Pazzinatto MF, Briani RV, Ferreira AS, Aragão FA, de Azevedo FM. Contribution of altered hip, knee and foot kinematics to dynamic postural impairments in females with patellofemoral pain during stair ascent. Knee 2016; 23:376-81. [PMID: 26875045 DOI: 10.1016/j.knee.2016.01.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/13/2016] [Accepted: 01/15/2016] [Indexed: 02/02/2023]
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.
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Affiliation(s)
- Danilo de Oliveira Silva
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | | | - Marcella Ferraz Pazzinatto
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Ronaldo Valdir Briani
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Amanda Schenatto Ferreira
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | | | - Fábio Mícolis de Azevedo
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil.
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de Oliveira Silva D, Barton CJ, Pazzinatto MF, Briani RV, de Azevedo FM. Proximal mechanics during stair ascent are more discriminate of females with patellofemoral pain than distal mechanics. Clin Biomech (Bristol, Avon) 2016; 35:56-61. [PMID: 27128766 DOI: 10.1016/j.clinbiomech.2016.04.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 04/08/2016] [Accepted: 04/12/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Several hypotheses have been proposed to explain the pathomechanisms underlying patellofemoral pain (PFP). Concurrent evaluation of lower limb mechanics in the same PFP population is needed to determine which may be more important to target during rehabilitation. This study aimed to investigate possible differences in rearfoot eversion, hip adduction, and knee flexion during stair ascent; the relationship between these variables; and the discriminatory capability of each in identifying females with PFP. METHOD Thirty-six females with PFP and 31 asymptomatic controls underwent three-dimensional kinematic analyses during stair ascent. Between-group comparisons were made for peak rearfoot eversion, hip adduction, and knee flexion. Pearson's correlation coefficients were calculated to evaluate relationships among these parameters. Receiver operating characteristic curves were applied to identify the discriminatory capability of each. FINDINGS Females with PFP ascended stairs with reduced peak knee flexion, greater peak hip adduction and peak rearfoot eversion. Peak hip adduction (>10.6°; sensitivity=67%, specificity=77%) discriminated females with PFP more effectively than rearfoot eversion (>5.0°; sensitivity=58%, specificity=67%). Reduced peak hip adduction was found to be associated with reduced peak knee flexion (r=0.54, p=0.002) in females with PFP. INTERPRETATION These findings indicate that proximal, local, and distal kinematics should be considered in PFP management, but proximally targeted interventions may be most important. The relationship of reduced knee flexion with reduced hip adduction also indicates a possible compensatory strategy to reduce patellofemoral joint stress, and this may need to be addressed during rehabilitation.
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Affiliation(s)
- Danilo de Oliveira Silva
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Christian John Barton
- Lower Extremity Gait Studies, La Trobe University, Australia; Centre for Sports and Exercise Medicine, Queen Mary University of London, London, UK
| | - Marcella Ferraz Pazzinatto
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Ronaldo Valdir Briani
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Fábio Mícolis de Azevedo
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil.
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Pazzinatto MF, de Oliveira Silva D, Barton C, Rathleff MS, Briani RV, de Azevedo FM. Female Adults with Patellofemoral Pain Are Characterized by Widespread Hyperalgesia, Which Is Not Affected Immediately by Patellofemoral Joint Loading. PAIN MEDICINE 2016; 17:1953-1961. [DOI: 10.1093/pm/pnw068] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Delayed onset of electromyographic activity of the vastus medialis relative to the vastus lateralis may be related to physical activity levels in females with patellofemoral pain. J Electromyogr Kinesiol 2016; 26:137-42. [DOI: 10.1016/j.jelekin.2015.10.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 10/10/2015] [Accepted: 10/23/2015] [Indexed: 11/19/2022] Open
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de Oliveira Silva D, Magalhães FH, Faria NC, Pazzinatto MF, Ferrari D, Pappas E, de Azevedo FM. Lower Amplitude of the Hoffmann Reflex in Women With Patellofemoral Pain: Thinking Beyond Proximal, Local, and Distal Factors. Arch Phys Med Rehabil 2016; 97:1115-20. [PMID: 26763946 DOI: 10.1016/j.apmr.2015.12.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 12/14/2015] [Accepted: 12/18/2015] [Indexed: 11/24/2022]
Abstract
OBJECTIVES To investigate whether vastus medialis (VM) Hoffmann reflexes (H-reflexes) differ on the basis of the presence or absence of patellofemoral pain (PFP) and to assess the capability of VM H-reflex measurements in accurately discriminating between women with and without PFP. DESIGN Cross-sectional study. SETTING Laboratory of biomechanics and motor control. PARTICIPANTS Women (N=30) aged 18 to 35 years were recruited, consisting of 2 groups: women with PFP (n=15) and asymptomatic controls (n=15). INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Maximum evoked responses were obtained by electrical stimulation applied to the femoral nerve, and peak-to-peak amplitudes of maximal Hoffmann reflex (Hmax) and maximal motor wave (Mmax) ratios were calculated. Independent samples t tests were performed to identify differences between groups, and a receiver operating characteristic curve was constructed to assess the discriminatory capability of VM H-reflex measurements. RESULTS VM Hmax/Mmax ratios were significantly lower in participants with PFP than in pain-free participants (P=.007). In addition, the VM Hmax/Mmax ratios presented large and balanced discriminatory capability values (sensitivity, 73%; specificity, 67%). CONCLUSIONS This study is the first to show that VM H-reflexes are lower in women with PFP than in asymptomatic controls. Therefore, increasing the excitation of the spinal cord in PFP participants may be essential to maintaining the gains acquired during the rehabilitation programs.
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Affiliation(s)
- Danilo de Oliveira Silva
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | | | - Nathálie Clara Faria
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Marcella Ferraz Pazzinatto
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Deisi Ferrari
- Bioengineering Department, School of Engineering, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Evangelos Pappas
- Discipline of Physiotherapy, Faculty of Health Sciences, University of Sydney, Sydney, New South Wales, Australia
| | - Fábio Mícolis de Azevedo
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil.
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