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Hong QM, Wang HN, Liu XH, Zhou WQ, Luo XB. Intermittent blood flow restriction with low-load resistance training for older adults with knee osteoarthritis: a randomized, controlled, non-inferiority trial protocol. Trials 2024; 25:352. [PMID: 38822360 PMCID: PMC11140873 DOI: 10.1186/s13063-024-08203-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 05/28/2024] [Indexed: 06/02/2024] Open
Abstract
BACKGROUND Knee osteoarthritis (KOA) is a chronic musculoskeletal disorder characterized by pain and functional impairment. Blood flow restriction (BFR) with low-load resistance training (LLRT) demonstrates a similar improvement in clinical outcomes to high-load resistance training (HLRT) in treating KOA. It has not been established whether intermittent blood flow restriction (iBFR) with LLRT can lead to clinical outcomes that are comparable to those produced by continuous blood flow restriction (cBFR) with LLRT and HLRT. The aim of the proposed study is to evaluate the efficacy of iBFR with LLRT on pain, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), muscle strength, muscle mass, physical function, perceptions of discomfort and effort, and adherence in KOA patients. METHODS This is a three-arm, non-inferiority, randomized controlled trial utilizing blinded assessors. Two hundred thirteen participants will be randomly allocated to one of the following three groups: iBFR group-receiving 4 months of LLRT with iBFR, twice weekly (n = 71); cBFR group-receiving 4 months of LLRT with cBFR, twice weekly (n = 71); or HLRT group-receiving 4 months of HLRT without BFR, twice weekly (n = 71). The primary outcome is pain. The secondary outcomes include the WOMAC, muscle strength, muscle mass, physical function, perceptions of discomfort and effort, and adherence. Pain and WOMAC will be measured at the baseline and 4 and 12 months after randomizations. Muscle strength, muscle mass, and physical function will be measured at the baseline and 4 months after randomizations. The perceptions of discomfort and effort will be measured during the first and final sessions. DISCUSSION BFR with LLRT has a similar improvement in clinical outcomes as HLRT. However, cBFR may cause elevated ratings of perceived exertion and local discomfort, compromising patient tolerability and treatment adherence. If iBFR with LLRT could produce improvement in clinical outcomes analogous to those of HLRT and iBFR with LLRT, it could be considered an alternative approach for treating patients with KOA. TRIAL REGISTRATION Chinese Clinical Trial Registry ChiCTR2300072820. Registered on June 26, 2023.
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Affiliation(s)
- Qiao-Mei Hong
- Department of Sport Medicine, Sichuan Province Orthopedic Hospital, Chengdu, Sichuan Province, China
| | - Hao-Nan Wang
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu, China.
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.
| | - Xi-Hui Liu
- Department of Sport Medicine, Sichuan Province Orthopedic Hospital, Chengdu, Sichuan Province, China
| | - Wen-Qi Zhou
- Department of Sport Medicine, Sichuan Province Orthopedic Hospital, Chengdu, Sichuan Province, China
| | - Xiao-Bing Luo
- Department of Sport Medicine, Sichuan Province Orthopedic Hospital, Chengdu, Sichuan Province, China
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Straub RK, Powers CM. A Biomechanical Review of the Squat Exercise: Implications for Clinical Practice. Int J Sports Phys Ther 2024; 19:490-501. [PMID: 38576836 PMCID: PMC10987311 DOI: 10.26603/001c.94600] [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] [Received: 11/29/2023] [Accepted: 02/07/2024] [Indexed: 04/06/2024] Open
Abstract
The squat is one of the most frequently prescribed exercises in the rehabilitative setting. Performance of the squat can be modified by changing parameters such as stance width, foot rotation, trunk position, tibia position, and depth. An understanding of how the various squatting techniques can influence joint loading and muscular demands is important for the proper prescription of this exercise for various clinical conditions. The purpose of this clinical commentary is to discuss how the biomechanical demands of the squat can be influenced by various modifiable parameters. General recommendations for specific clinical conditions are presented. Level of Evidence 5.
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Davis J, Doyle B, Ishii H, Jayanthi N. S.P.O.R.R.T.-A Comprehensive Approach to the Assessment and Non-Operative Management of Overuse Knee Conditions in Youth Athletes. Curr Rev Musculoskelet Med 2023; 16:627-638. [PMID: 37999828 PMCID: PMC10733244 DOI: 10.1007/s12178-023-09874-8] [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] [Accepted: 10/30/2023] [Indexed: 11/25/2023]
Abstract
PURPOSE OF REVIEW The evaluation of a young athlete with an overuse injury to the knee involves a comprehensive approach. There are a number of elements to consider including assessments of skeletal maturity (biologic maturation), workload (training load + competition load), sport specialization status, and biomechanics. The type of injury and treatment, as well as future prognosis, may be influenced by these and other factors. RECENT FINDINGS Calculating the percentage of predicted adult height (PPAH) is a valuable tool in assessing overuse injury patterns and diagnoses in youth athletes. Modifiable and non-modifiable overuse injury risk factors require monitoring from clinicians as young athletes mature and develop over time. Training and rehabilitation programs should be adapted to account for these. In this manuscript, we seek to introduce a novel, comprehensive approach: S.P.O.R.R.T. (Skeletal Maturity, Prior Injury Risk, One Sport Specialization, Rehabilitation, Return to Play, Training Recommendations) (Fig. 1). Overuse, non-traumatic injuries to the knee in youth athletes will be presented in a case-based and evidence-based model to provide a framework for a comprehensive approach to the assessment and treatment of youth athletes with overuse injuries.
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Affiliation(s)
- Jacob Davis
- Emory Sports Medicine Center, 6335 Hospital Parkway, Suite 302, Johns Creek, GA, 30097, USA
- Georgia Institute of Technology, Sports Medicine, Atlanta, GA, USA
| | - Bridget Doyle
- Emory Sports Medicine Center, 6335 Hospital Parkway, Suite 302, Johns Creek, GA, 30097, USA
| | - Haruki Ishii
- Emory Sports Medicine Center, 6335 Hospital Parkway, Suite 302, Johns Creek, GA, 30097, USA
| | - Neeru Jayanthi
- Emory Sports Medicine Center, 6335 Hospital Parkway, Suite 302, Johns Creek, GA, 30097, USA.
- Emory Sports Performance & Research Center (SPARC), 4450 Falcon Pkwy, Flowery Branch, GA, USA.
- Emory University School of Medicine, Department of Orthopedics and Family Medicine, Atlanta, GA, USA.
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Hong QM, Wang HN, Liu XH, Zhou WQ, Zhang X, Luo XB. Home-based exercise program and Health education in patients with patellofemoral pain: a randomized controlled trial. BMC Musculoskelet Disord 2023; 24:896. [PMID: 37980477 PMCID: PMC10657019 DOI: 10.1186/s12891-023-07027-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 11/07/2023] [Indexed: 11/20/2023] Open
Abstract
BACKGROUND Patellofemoral pain (PFP) is one of the most common disorders of the knee joint. Home-based exercise is an effective intervention to achieve self-management for chronic diseases. This study evaluated the effects of home-based exercise and health education in patients with PFP. METHODS Patients who had PFP were randomly allocated to an intervention group (IG) or control group (CG). Patients in the IG received a 6-week tailored home-based exercise program with health education via remote support, while patients in the CG group only received health education. Clinical outcomes were compared using the Anterior Knee Pain Scale (AKPS) to measure function and the Visual Analog Scale (VAS) to measure "worst pain" and "pain with daily activity". Muscle strength was measured according to the peak torque of the knee muscles using an isokinetic system. RESULTS Among a total of 112 participants screened for eligibility, 38 were randomized and analyzed, including 19 participants in the intervention group and 19 participants in the control group. There were no significant differences in baseline characteristics between the groups. At 6-week follow-up, the intervention group showed a greater worst pain reduction (between-group difference, -19.3 [95%CI, -23.2 to -15.5]; P < 0.01) and pain with daily activity (between-group difference, -22.9 [95%CI, -28.3 to -17.4]; P < 0.01) than the control group. Similarly, the intervention group had better improvements in AKPS (between-group difference, 9.0 [95%CI, 4.1 to 13.9]; P < 0.01) and knee extensor strength (between-group difference, 20.1 [95%CI, 14.5 to 25.8]; P < 0.01), compared to the control group. No adverse events were reported. CONCLUSION Home-based exercise and health education resulted in less pain, better function, and higher knee muscle strength compared with no exercise in patients with PFP. A large randomized controlled trial with long-term follow-up is required to confirm these findings. TRIAL REGISTRATION Chinese Clinical Trial Registry, ChiCTR2200056224 ( https://www.chictr.org.cn/showproj.aspx?proj=135506 ). Registered on February 1, 2022.
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Affiliation(s)
- Qiao-Mei Hong
- Department of Sport Medicine, Sichuan Province Orthopedic Hospital, Chengdu, Sichuan Province, China
| | - Hao-Nan Wang
- Faculty of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Xi-Hui Liu
- Department of Sport Medicine, Sichuan Province Orthopedic Hospital, Chengdu, Sichuan Province, China
| | - Wen-Qi Zhou
- Department of Sport Medicine, Sichuan Province Orthopedic Hospital, Chengdu, Sichuan Province, China
| | - Xiao Zhang
- Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Xiao-Bing Luo
- Department of Sport Medicine, Sichuan Province Orthopedic Hospital, Chengdu, Sichuan Province, China.
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Kong W, Wang H, Cheng L, Ni G. Comparing the effect of intermittent blood flow restriction training and high-load resistance training in patients with patellofemoral pain: study protocol for a randomised trial. BMJ Open 2023; 13:e073188. [PMID: 37865415 PMCID: PMC10603463 DOI: 10.1136/bmjopen-2023-073188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 10/02/2023] [Indexed: 10/23/2023] Open
Abstract
BACKGROUND Patellofemoral pain (PFP) syndrome is a common knee joint functional disorder. Blood flow restriction (BFR) training has shown promise in improving PFP; however, the effectiveness of intermittent BFR (iBFR) training remains uncertain. This study aims to compare the rehabilitative effects of iBFR combined with low-load resistance training and high-load resistance training in PFP patients and to assess the effectiveness of iBFR combined with low-load resistance training for improving PFP. METHODS AND ANALYSIS This randomised, patient-assessor blinded, controlled trial will include 42 eligible PFP patients randomly allocated to an intervention group (iBFR combined with low-load resistance training) or a control group (high-load resistance training) in a 1:1 ratio. Participants will receive interventions three times per week for 8 weeks and will be followed up for 24 weeks. The primary outcome measure is pain, and the secondary outcomes include self-reported function, quality of life, muscle strength and muscle thickness. Assessments will be conducted at baseline, 8 weeks and 24 weeks during follow-up. Intention-to-treat analysis will be performed.Collectively, we expect that the findings of this randomised clinical trial will contribute to understanding the potential benefits of iBFR training and provide insightful guidance for developing more effective treatment strategies for patients with PFP. ETHICS AND DISSEMINATION This study was approved by the Sports Science Experiment Ethics Committee of Beijing Sport University (2022274H). Written informed consent will be obtained from all participants. Trial results will be disseminated through peer-reviewed publications. TRIAL REGISTRATION NUMBER Chinese Clinical Trial Registry (ChiCTR2300068281).
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Affiliation(s)
- Weiya Kong
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Haonan Wang
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Lin Cheng
- Department of Rehabilitation, Tongzhou District Hospital of Integrated Chinese and Western Medicine, Beijing, China
| | - Guoxin Ni
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
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Buzzatti L, Keelson B, van der Voort JW, Segato L, Scheerlinck T, Héréus S, Van Gompel G, Vandemeulebroucke J, De Mey J, Buls N, Cattrysse E, Serrien B. Dynamic CT scanning of the knee: Combining weight bearing with real-time motion acquisition. Knee 2023; 44:130-141. [PMID: 37597475 DOI: 10.1016/j.knee.2023.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 06/14/2023] [Accepted: 07/24/2023] [Indexed: 08/21/2023]
Abstract
BACKGROUND Imaging the lower limb during weight-bearing conditions is essential to acquire advanced functional joint information. The horizontal bed position of CT systems however hinders this process. The purpose of this study was to validate and test a device to simulate realistic knee weight-bearing motion in a horizontal position during dynamic CT acquisition and process the acquired images. METHODS "Orthostatic squats" was compared to "Horizontal squats" on a device with loads between 35% and 55% of the body weight (%BW) in 20 healthy volunteers. Intraclass Correlation Coefficient (ICC), and standard error of measurement (SEM), were computed as measures of the reliability of curve kinematic and surface EMG (sEMG) data. Afterwards, the device was tested during dynamic CT acquisitions on three healthy volunteers and three patients with patellofemoral pain syndrome. The respective images were processed to extract Tibial-Tuberosity Trochlear-Groove distance, Bisect Offset and Lateral Patellar Tilt metrics. RESULTS For sEMG, the highest average ICCs (SEM) of 0.80 (6.9), was found for the load corresponding to 42%BW. Kinematic analysis showed ICCs were the highest for loads of 42%BW during the eccentric phase (0.79-0.87) and from maximum flexion back to 20° (0.76). The device proved to be safe and reliable during the acquisition of dynamic CT images and the three metrics were computed, showing preliminary differences between healthy and pathological participants. CONCLUSIONS This device could simulate orthostatic squats in a horizontal position with good reliability. It also successfully provided dynamic CT scan images and kinematic parameters of healthy and pathological knees during weight-bearing movement.
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Affiliation(s)
- Luca Buzzatti
- Vrije Universiteit Brussel (VUB), Experimental Anatomy Research Group (EXAN), Laarbeeklaan 103, 1090 Brussels, Belgium; School of Allied Health, Anglia Ruskin University (ARU), Young Street, CB1 1PT Cambridge, UK.
| | - Benyameen Keelson
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Radiology, Laarbeeklaan 101, 1090 Brussels, Belgium; Vrije Universiteit Brussel (VUB), Department of Electronics and Informatics (ETRO), Pleinlaan 2, 1050 Brussel, Belgium; imec, Kapeldreef 75, 3001 Leuven, Belgium
| | - Joris Willem van der Voort
- Vrije Universiteit Brussel (VUB), Experimental Anatomy Research Group (EXAN), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Lorenzo Segato
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genova, Campus of Savona, Italy
| | - Thierry Scheerlinck
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Orthopaedic Surgery and Traumatology, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - Savanah Héréus
- Vrije Universiteit Brussel (VUB), Experimental Anatomy Research Group (EXAN), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Gert Van Gompel
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Radiology, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - Jef Vandemeulebroucke
- Vrije Universiteit Brussel (VUB), Department of Electronics and Informatics (ETRO), Pleinlaan 2, 1050 Brussel, Belgium; imec, Kapeldreef 75, 3001 Leuven, Belgium
| | - Johan De Mey
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Radiology, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - Nico Buls
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Radiology, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - Erik Cattrysse
- Vrije Universiteit Brussel (VUB), Experimental Anatomy Research Group (EXAN), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Ben Serrien
- Vrije Universiteit Brussel (VUB), Experimental Anatomy Research Group (EXAN), Laarbeeklaan 103, 1090 Brussels, Belgium
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Song K, Scattone Silva R, Hullfish TJ, Silbernagel KG, Baxter JR. Patellofemoral Joint Loading Progression Across 35 Weightbearing Rehabilitation Exercises and Activities of Daily Living. Am J Sports Med 2023; 51:2110-2119. [PMID: 37272685 PMCID: PMC10315869 DOI: 10.1177/03635465231175160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 03/28/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND Exercises that provide progressive therapeutic loading are a central component of patellofemoral pain rehabilitation, but quantitative evidence on patellofemoral joint loading is scarce for a majority of common weightbearing rehabilitation exercises. PURPOSE To define a loading index to quantify, compare, rank, and categorize overall loading levels in the patellofemoral joint across 35 types of weightbearing rehabilitation exercises and activities of daily living. STUDY DESIGN Descriptive laboratory study. METHODS Model-estimated knee flexion angles and extension moments based on motion capture and ground-reaction force data were used to quantify patellofemoral joint loading in 20 healthy participants who performed each exercise. A loading index was computed via a weighted sum of loading peak and cumulative loading impulse for each exercise. The 35 rehabilitation exercises and daily living activities were then ranked and categorized into low, moderate, and high "loading tiers" according to the loading index. RESULTS Overall patellofemoral loading levels varied substantially across the exercises and activities, with loading peak ranging from 0.6 times body weight during walking to 8.2 times body weight during single-leg decline squat. Most rehabilitation exercises generated a moderate level of patellofemoral joint loading. Few weightbearing exercises provided low-level loading that resembled walking or high-level loading with both high magnitude and duration. Exercises with high knee flexion tended to generate higher patellofemoral joint loading compared with high-intensity exercises. CONCLUSION This study quantified patellofemoral joint loading across a large collection of weightbearing exercises in the same cohort. CLINICAL RELEVANCE The visualized loading index ranks and modifiable worksheet may assist clinicians in planning patient-specific exercise programs for patellofemoral pain rehabilitation.
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Affiliation(s)
- Ke Song
- Department of Orthopaedic Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
| | - Rodrigo Scattone Silva
- Department of Physical Therapy, University of Delaware, Newark, Delaware, USA
- Postgraduate Program in Rehabilitation Sciences, Postgraduate Program in Physical Therapy, Federal University of Rio Grande do Norte, Santa Cruz, Brazil
| | - Todd J. Hullfish
- Department of Orthopaedic Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
| | | | - Josh R. Baxter
- Department of Orthopaedic Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
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Wang B, Mao Z, Guo J, Yang J, Zhang S. The non-invasive evaluation technique of patellofemoral joint stress: a systematic literature review. Front Bioeng Biotechnol 2023; 11:1197014. [PMID: 37456733 PMCID: PMC10343958 DOI: 10.3389/fbioe.2023.1197014] [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: 03/30/2023] [Accepted: 06/20/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction: Patellofemoral joint stress (PFJS) is an important parameter for understanding the mechanism of patellofemoral joint pain, preventing patellofemoral joint injury, and evaluating the therapeutic efficacy of PFP rehabilitation programs. The purpose of this systematic review was to identify and categorize the non-invasive technique to evaluate the PFJS. Methods: Literature searches were conducted from January 2000 to October 2022 in electronic databases, namely, PubMed, Web of Science, and EBSCO (Medline, SPORTDiscus). This review includes studies that evaluated the patellofemoral joint reaction force (PJRF) or PFJS, with participants including both healthy individuals and those with patellofemoral joint pain, as well as cadavers with no organic changes. The study design includes cross-sectional studies, case-control studies, and randomized controlled trials. The JBI quality appraisal criteria tool was used to assess the risk of bias in the included studies. Results: In total, 5016 articles were identified in the database research and the citation network, and 69 studies were included in the review. Discussion: Researchers are still working to improve the accuracy of evaluation for PFJS by using a personalized model and optimizing quadriceps muscle strength calculations. In theory, the evaluation method of combining advanced computational and biplane fluoroscopy techniques has high accuracy in evaluating PFJS. The method should be further developed to establish the "gold standard" for PFJS evaluation. In practical applications, selecting appropriate methods and approaches based on theoretical considerations and ecological validity is essential.
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Demir C, Harput G. Weight-Bearing Exercises on Slideboard Increase Quadriceps and Hamstring Activation Levels and Improve Hip- and Knee-Flexion Angles in Physically Active Individuals. J Sport Rehabil 2023:1-13. [PMID: 37156537 DOI: 10.1123/jsr.2022-0382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 03/01/2023] [Accepted: 03/08/2023] [Indexed: 05/10/2023]
Abstract
CONTEXT Slideboards are commonly used in exercise programs, but there is limited information about how they affect muscle activities during exercise. We aim to compare the activation levels of quadriceps and hamstring muscles and hip- and knee-flexion angles during lunge and single-leg squat exercises between normal ground and slideboard in physically active individuals. DESIGN Cross-sectional study. METHODS Thirty healthy individuals (age: 23.83 [2.84] y, body mass index: 21.75 [1.72] kg/m2) were included in the study. Surface electromyography was used to measure vastus medialis, vastus lateralis, biceps femoris, and semitendinosus activation levels during reaching and returning phases of the forward, lateral, and back lunges and squats that were performed on the normal ground and slideboard. Exercises were performed at a slow pace (60 beats/min). Hip- and knee-flexion angles during the exercises were evaluated by using 2-dimensional motion analysis. Repeated measures of analysis of variance were used for statistical analysis. RESULTS Vastus medialis and vastus lateralis activation levels were greater during reaching and returning phases of the exercises on slideboard compared with normal ground (P < .05). However, semitendinosus and biceps femoris activity were greater only during the returning phase of the forward lunge (P < .001) and the returning phase of the back squat (P = .002, P = .009, respectively). Hip-to-knee flexion ratios were closer to 1 when the forward lunge (P < .001), back lunge (P = .004), and forward squat (P = .001) exercises were performed on a slideboard. CONCLUSION In exercise programs that target the quadriceps and hamstring muscles, slideboards can be effectively used in exercise progressions as they can increase muscle activity. Moreover, squat and lunge exercises on slideboard with a slow pace may also be helpful for improving the balance between hip- and knee-flexion angles.
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Affiliation(s)
- Cigdem Demir
- Institute of Health Sciences, Hacettepe University, Ankara,Turkey
| | - Gulcan Harput
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara,Turkey
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Souza de Vasconcelos G, Eduarda Chinotti Batista da Silva M, S Nunes G, Viadanna Serrão F. Relationship between kinesiophobia, isometric hip and knee torques to pelvic, hip and knee motion during the single-leg drop jump in women with patellofemoral pain: A cross-sectional study. Knee 2023; 42:264-272. [PMID: 37116339 DOI: 10.1016/j.knee.2023.04.002] [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: 10/05/2022] [Revised: 02/28/2023] [Accepted: 04/03/2023] [Indexed: 04/30/2023]
Abstract
BACKGROUND Individuals with patellofemoral pain (PFP) have kinesiophobia and hip and knee strength deficits. These factors may be related to kinematic alterations of pelvic, hip and knee during a more demanding functional activity, such as jumping landing. The aim was to investigate the relationships between kinesiophobia and hip/knee torque to pelvic/hip/knee kinematics during the single-leg drop vertical jump in women with PFP. METHOD Thirty women with PFP were assessed with Tampa Scale for Kinesiophobia; isokinetic dynamometry of the hip extensor, hip abductor, and knee extensor; and three-dimensional motion analysis system during the single-leg drop vertical jump. A Pearson correlation matrix was used to investigate relationship among variables. RESULTS Fair correlations were found between increased kinesiophobia and increased peak hip internal rotation angle (r = 0.43; p = 0.018) as well as between greater peak knee extensor torque and greater peak knee flexion (r = 0.41; p = 0.022). Moderate to good correlation was found between increased peak hip abductor torque and increased peak contralateral pelvic drop (r = 0.52; p = 0.003). No other significant correlations were found between variables. CONCLUSIONS Kinesiophobia is associated with hip kinematics, but not with knee kinematics, during the single-leg vertical drop jump in women with PFP. The greater hip abductor torque is associated with greater contralateral pelvic drop. The positive relationship between knee extensor torque and knee flexion indicates that rehabilitation programs involving quadriceps muscle strengthening may assist women with PFP in control knee flexion and improve load absorption during jumping landing.
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Affiliation(s)
- Gabriela Souza de Vasconcelos
- Physical Therapy Department, Federal University of Sao Carlos (UFSCar), Rodovia Washington Luis Km 235, São Carlos, São Paulo CEP 13565-905, Brazil.
| | | | - Guilherme S Nunes
- Physiotherapy and Rehabilitation Department, Federal University of Santa Maria (UFSM), Av Roraima 1000, Santa Maria, Rio Grande do Sul CEP 97105-900, Brazil
| | - Fábio Viadanna Serrão
- Physical Therapy Department, Federal University of Sao Carlos (UFSCar), Rodovia Washington Luis Km 235, São Carlos, São Paulo CEP 13565-905, Brazil
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Kayll SA, Hinman RS, Bennell KL, Bryant AL, Rowe PL, Paterson KL. The effect of biomechanical foot-based interventions on patellofemoral joint loads during gait in adults with and without patellofemoral pain or osteoarthritis: a systematic review protocol. J Foot Ankle Res 2022; 15:91. [PMID: 36514101 PMCID: PMC9746129 DOI: 10.1186/s13047-022-00596-7] [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: 09/12/2022] [Accepted: 12/02/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Patellofemoral pain is highly prevalent across the lifespan, and a significant proportion of people report unfavourable outcomes years after diagnosis. Previous research has implicated patellofemoral joint loading during gait in patellofemoral pain and its sequelae, patellofemoral osteoarthritis. Biomechanical foot-based interventions (e.g., footwear, insoles, orthotics, taping or bracing) can alter patellofemoral joint loads by reducing motions at the foot that increase compression between the patella and underlying femur via coupling mechanisms, making them a promising treatment option. This systematic review will summarise the evidence about the effect of biomechanical foot-based interventions on patellofemoral joint loads during gait in adults with and without patellofemoral pain and osteoarthritis. METHODS MEDLINE (Ovid), the Cumulative Index to Nursing and Allied Health Literature CINAHL, The Cochrane Central Register of Controlled Trials (CENTRAL), SPORTdiscus (EBSCO) and Embase (Ovid) will be searched. Our search strategy will include terms related to 'patellofemoral joint', 'loads' and 'biomechanical foot-based interventions'. We will include studies published in the English language that assess the effect of biomechanical foot-based interventions on patellofemoral joint loads, quantified by patellofemoral joint pressure, patellofemoral joint reaction force and/or knee flexion moment. Two reviewers will independently screen titles and abstracts, complete full-text reviews, and extract data from included studies. Two reviewers will assess study quality using the Revised Cochrane Risk of Bias (RoB 2) tool or the Cochrane Risk Of Bias In Non-Randomized Studies - of Interventions (ROBINS-I) tool. We will provide a synthesis of the included studies' characteristics and results. If three or more studies are sufficiently similar in population and intervention, we will pool the data to conduct a meta-analysis and report findings as standardised mean differences with 95% confidence intervals. If a meta-analysis cannot be performed, we will conduct a narrative synthesis of the results and produce forest plots for individual studies. DISCUSSION This protocol outlines the methods of a systematic review that will determine the effect of biomechanical foot-based interventions on patellofemoral joint loads. Our findings will inform clinical practice by identifying biomechanical foot-based interventions that reduce or increase patellofemoral joint loads, which may aid the treatment of adults with patellofemoral pain and osteoarthritis. TRIAL REGISTRATION Registered with PROSPERO on the 4th of May 2022 (CRD42022315207).
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Affiliation(s)
- Samual A. Kayll
- grid.1008.90000 0001 2179 088XCentre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, The University of Melbourne, 3010, Level 7, Alan Gilbert Building, 161 Barry Street, Parkville, Australia
| | - Rana S. Hinman
- grid.1008.90000 0001 2179 088XCentre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, The University of Melbourne, 3010, Level 7, Alan Gilbert Building, 161 Barry Street, Parkville, Australia
| | - Kim L. Bennell
- grid.1008.90000 0001 2179 088XCentre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, The University of Melbourne, 3010, Level 7, Alan Gilbert Building, 161 Barry Street, Parkville, Australia
| | - Adam L. Bryant
- grid.1008.90000 0001 2179 088XCentre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, The University of Melbourne, 3010, Level 7, Alan Gilbert Building, 161 Barry Street, Parkville, Australia
| | - Patrick L. Rowe
- grid.1008.90000 0001 2179 088XCentre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, The University of Melbourne, 3010, Level 7, Alan Gilbert Building, 161 Barry Street, Parkville, Australia
| | - Kade L. Paterson
- grid.1008.90000 0001 2179 088XCentre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, The University of Melbourne, 3010, Level 7, Alan Gilbert Building, 161 Barry Street, Parkville, Australia
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Valdir Briani R, Cannon J, Henrique Maiolini Ducatti M, Barbuglio Del Priore L, Flavia Balotari Botta A, Henrique Magalhães F, Mícolis de Azevedo F. Exacerbating patellofemoral pain alters trunk and lower limb coordination patterns and hip-knee mechanics. J Biomech 2022; 141:111215. [DOI: 10.1016/j.jbiomech.2022.111215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 11/30/2022]
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13
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Central vs. Peripheral Vision during a Singe-Leg Drop Jump: Implications of Dynamics and Patellofemoral Joint Stress. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12052599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Landing on a single-leg without receiving direct visual information (e.g., not looking at the ground) may increase the risk of injury. We examined whether visual focus contributed to the changing lower-extremity dynamics and patellofemoral joint stress during a single-leg drop jump task. Twenty healthy volunteers visited the laboratory for three separate sessions. During each session, participants randomly performed either of two types of a single-leg drop jump task from a 30 cm high wooden box. Subsequently, participants looked at the landing spot (central vision condition) or kept their heads up (peripheral vision condition) when performing the task. Sagittal and frontal plane lower-extremity joint angles and joint moments (in the ankle, knee, and hip), including the vertical ground reaction force, and patellofemoral joint stress during the first landing phase (from initial contact to peak knee flexion) were compared. Greater ankle inversion and hip adduction were observed when landing with the peripheral vision condition. However, the magnitudes were negligeable (Cohen’s d effect size <0.35). No statistical difference was observed in other comparisons. Landing on a single-leg from a 30 cm height without receiving full visual attention (peripheral vision condition) does not increase the risk of lower-extremity traumatic and overuse injuries.
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Lower Extremity Kinetics and Kinematics in Runners with Patellofemoral Pain: A Retrospective Case–Control Study Using Musculoskeletal Simulation. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12020585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Patellofemoral pain (PFP) is a common atraumatic knee pathology in runners, with a complex multifactorial aetiology influenced by sex differences. This retrospective case–control study therefore aimed to evaluate lower limb kinetics and kinematics in symptomatic and control male and female runners using musculoskeletal simulation. Lower extremity biomechanics were assessed in 40 runners with PFP (15 females and 25 males) and 40 controls (15 females and 25 males), whilst running at a self-selected velocity. Lower extremity biomechanics were explored using a musculoskeletal simulation approach. Four intergroup comparisons—(1) overall PFP vs. control; (2) male PFP vs. male control; (3) female PFP vs. female control; and (4) male PFP vs. female PFP—were undertaken using linear mixed models. The overall (stress per mile: PFP = 1047.49 and control = 812.93) and female (peak stress: PFP = 13.07 KPa/BW and control = 10.82 KPa/BW) comparisons showed increased patellofemoral joint stress indices in PFP runners. A significantly lower strike index was also shown in PFP runners in the overall (PFP = 17.75% and control = 33.57%) and female analyses (PFP = 15.49% and control = 40.20%), revealing a midfoot strike in control, and a rearfoot pattern in PFP runners. Peak rearfoot eversion and contralateral pelvic drop range of motion (ROM) were shown to be greater in PFP runners in the overall (eversion: PFP = −8.15° and control = −15.09°/pelvic drop ROM: PFP = 3.64° and control = 1.88°), male (eversion: PFP = −8.05° and control = −14.69°/pelvic drop ROM: PFP = 3.16° and control = 1.77°) and female (eversion: PFP = 8.28° and control = −15.75°/pelvic drop ROM: PFP = 3.64° and control = 1.88°) PFP runners, whilst female PFP runners (11.30°) exhibited a significantly larger peak hip adduction compared to PFP males (7.62°). The findings from this investigation highlight biomechanical differences between control and PFP runners, as well as demonstrating distinctions in PFP presentation for many parameters between sexes, highlighting potential risk factors for PFP that may be addressed through focused intervention modalities, and also the need, where appropriate, for sex-specific targeted treatment approaches.
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Wang HN, Chen Y, Cheng L, Wang ST, Hu DX, Wang LN, Ni GX. Effect of low-load resistance training with different degrees of blood flow restriction in patients with knee osteoarthritis: study protocol for a randomized trial. Trials 2022; 23:6. [PMID: 34980197 PMCID: PMC8722122 DOI: 10.1186/s13063-021-05946-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 12/17/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Knee osteoarthritis (KOA) is a common degenerative disease that causes pain, functional impairment, and reduced quality of life. Resistance training is considered as an effective approach to reduce the risk of muscle weakness in patients with KOA. Blood flow restriction (BFR) with low-load resistance training has better clinical outcomes than low-load resistance training alone. However, the degree of BFR which works more effectively with low-load resistance training has not been determined. The purpose of this study is to evaluate the effectiveness of different degrees of BFR with low-load resistance training in patients with KOA on pain, self-reported function, physical function performance, muscle strength, muscle thickness, and quality of life. METHODS This is a study protocol for a randomized, controlled trial with blinded participants. One hundred individuals will be indiscriminately assigned into the following groups: two training groups with a BFR at 40% and 80% limb occlusion pressure (LOP), a training group without BFR, and a health education group. The three intervention groups will perform strength training for the quadriceps muscles twice a week for 12 weeks, while the health education group will attend sessions once a week for 12 weeks. The primary outcome is pain. The secondary outcomes include self-reported function, physical function performance, muscle strength of the knee extensors, muscle mass of the quadriceps, quality of life, and adverse events. Intention-to-treat analysis will be conducted for individuals who withdraw during the trial. DISCUSSION Previous studies have shown that BFR with low-load resistance training is more effective than low-load resistance training alone; however, a high degree of BFR may cause discomfort during training. If a 40% LOP for BFR could produce similar clinical outcomes as an 80% LOP for BFR, resistance training with a low degree of BFR can be chosen for patients with KOA who are unbearable for a high degree of BFR. TRIAL REGISTRATION Chinese Clinical Trial Registry ChiCTR2000037859 ( http://www.chictr.org.cn/edit.aspx?pid=59956&htm=4 ). Registered on 2 September 2020.
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Affiliation(s)
- Hao-Nan Wang
- grid.411614.70000 0001 2223 5394School of Sport Medicine and Rehabilitation, Beijing Sport University, No. 48 Xinxi Road, Haidian District, Beijing, 100084 China
| | - Yan Chen
- grid.411614.70000 0001 2223 5394School of Sport Medicine and Rehabilitation, Beijing Sport University, No. 48 Xinxi Road, Haidian District, Beijing, 100084 China
| | - Lin Cheng
- grid.411614.70000 0001 2223 5394School of Sport Medicine and Rehabilitation, Beijing Sport University, No. 48 Xinxi Road, Haidian District, Beijing, 100084 China
| | - Shen-Tao Wang
- grid.411614.70000 0001 2223 5394School of Sport Medicine and Rehabilitation, Beijing Sport University, No. 48 Xinxi Road, Haidian District, Beijing, 100084 China
| | - De-Xin Hu
- grid.411614.70000 0001 2223 5394School of Sport Medicine and Rehabilitation, Beijing Sport University, No. 48 Xinxi Road, Haidian District, Beijing, 100084 China
| | - Li-Na Wang
- grid.411614.70000 0001 2223 5394School of Sport Medicine and Rehabilitation, Beijing Sport University, No. 48 Xinxi Road, Haidian District, Beijing, 100084 China
| | - Guo-Xin Ni
- grid.411614.70000 0001 2223 5394School of Sport Medicine and Rehabilitation, Beijing Sport University, No. 48 Xinxi Road, Haidian District, Beijing, 100084 China
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Theisen BJ, Larson PD, Chambers CC. Optimizing Rehabilitation and Return to Sport in Athletes With Anterior Knee Pain Using a Biomechanical Perspective. Arthrosc Sports Med Rehabil 2022; 4:e199-e207. [PMID: 35141552 PMCID: PMC8811520 DOI: 10.1016/j.asmr.2021.10.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/18/2021] [Indexed: 11/28/2022] Open
Abstract
Anterior knee pain represents one of the most common athletic knee conditions and arguably also one of the most complex. The patellofemoral joint is at the center of several forces, and alterations in any of these force vectors due to muscular imbalance, soft-tissue tightness or laxity, and altered functional movement patterns can all combine to create a painful anterior knee. While typically anterior knee pain is not a surgical entity, the orthopaedic surgeon with an understanding of these biomechanical intricacies is best positioned to provide comprehensive evidence-based care for the patient with anterior knee pain. Level of Evidence V, expert opinion.
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Malmir K, Olyaei GR, Talebian S, Khaleghi F. Contribution of components of the quadriceps femoris muscle for producing external torque in patients with patellofemoral pain syndrome. J Bodyw Mov Ther 2022; 29:264-270. [DOI: 10.1016/j.jbmt.2021.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 07/16/2021] [Accepted: 11/05/2021] [Indexed: 10/19/2022]
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Choe KH, Coburn JW, Costa PB, Pamukoff DN. Hip and Knee Kinetics During a Back Squat and Deadlift. J Strength Cond Res 2021; 35:1364-1371. [PMID: 30335723 DOI: 10.1519/jsc.0000000000002908] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Choe, KH, Coburn, JW, Costa, PB, and Pamukoff, DN. Hip and knee kinetics during a back-squat and deadlift. J Strength Cond Res 35(5): 1364-1371, 2021-The back-squat and deadlift are performed to improve hip and knee extensor function. The purpose of this study was to compare lower extremity joint kinetics (peak net joint moments [NJMs] and positive joint work [PJW]) between the back-squat and deadlift. Twenty-eight resistance-trained subjects (17 men: 23.7 ± 4.3 years, 1.76 ± 0.09 m, 78.11 ± 10.91 kg; 11 women: 23.0 ± 1.9 years, 1.66 ± 0.06 m, 65.36 ± 7.84 kg) were recruited. One repetition maximum (1RM) testing and biomechanical analyses occurred on separate days. Three-dimensional biomechanics of the back-squat and deadlift were recorded at 70 and 85% 1RM for each exercise. The deadlift demonstrated larger hip extensor NJM than the back-squat {3.59 (95% confidence interval [CI]: 3.30-3.88) vs. 2.98 (95% CI: 2.72-3.23) Nm·kg-1, d = 0.81, p < 0.001}. However, the back-squat had a larger knee extensor NJM compared with the deadlift (2.14 [95% CI: 1.88-2.40] vs. 1.18 [95% CI: 0.99-1.37] Nm·kg-1, d = 1.44 p < 0.001). More knee PJW was performed during the back-squat compared with the deadlift (1.85 [95% CI: 1.60-2.09] vs. 0.46 [95% CI: 0.35-0.58] J·kg-1, d = 2.10, p < 0.001). However, there was more hip PJW during the deadlift compared with the back-squat (3.22 [95% CI: 2.97-3.47] vs. 2.37 [95% CI: 2.21-2.54] J·kg-1, d = 1.30, p < 0.001). Larger hip extensor NJM and PJW during the deadlift suggest that individuals targeting their hip extensors may yield greater benefit from the deadlift compared with the back-squat. However, larger knee extensor NJM and PJW during the back-squat suggest that individuals targeting their knee extensor muscles may benefit from incorporating the back-squat compared with the deadlift.
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Affiliation(s)
- Kevin H Choe
- Department of Kinesiology and Nutrition Sciences, University of Nevada, Las Vegas, Las Vegas, Nevada; and.,Department of Kinesiology, Center for Sport Performance, California State University Fullerton, Fullerton, California
| | - Jared W Coburn
- Department of Kinesiology, Center for Sport Performance, California State University Fullerton, Fullerton, California
| | - Pablo B Costa
- Department of Kinesiology, Center for Sport Performance, California State University Fullerton, Fullerton, California
| | - Derek N Pamukoff
- Department of Kinesiology, Center for Sport Performance, California State University Fullerton, Fullerton, California
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Floyd ER, Falaas KL, Carlson GB, Monson J, LaPrade RF. Arthroscopic Excision of Bipartite Patella. Arthrosc Tech 2021; 10:e1257-e1262. [PMID: 34141540 PMCID: PMC8185573 DOI: 10.1016/j.eats.2021.01.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/11/2021] [Indexed: 02/03/2023] Open
Abstract
A bipartite patella usually presents as an incidental finding on radiographs because most cases are asymptomatic. However, some patients may present with pain and functional limitations. Conservative treatment is sufficient to resolve symptoms in most cases; however, a small minority of patients may require surgical management. Recent studies have reported excellent results with an arthroscopic approach. This Technical Note details our procedure for treating a symptomatic bipartite patella that has not resolved with conservative care.
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Affiliation(s)
- Edward R. Floyd
- Twin Cities Orthopedics, Edina-Crosstown, Edina, Minnesota, U.S.A.,Georgetown University School of Medicine, Washington, DC, U.S.A
| | - Kari L. Falaas
- University of Minnesota Medical School, Minneapolis, Minnesota, U.S.A
| | | | - Jill Monson
- TrainingHaus, Twin Cities Orthopedics, Eagan–Viking Lakes, Eagan, Minnesota, U.S.A
| | - Robert F. LaPrade
- Twin Cities Orthopedics, Edina-Crosstown, Edina, Minnesota, U.S.A.,Address correspondence to Robert F. LaPrade, M.D., Ph.D., Twin Cities Orthopedics, Edina-Crosstown, 4010 W 65th St, Edina, MN 55435 U.S.A.
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20
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Almeida GPL, Rodrigues HLDN, Coelho BAL, Rodrigues CAS, Lima PODP. Anteromedial versus posterolateral hip musculature strengthening with dose-controlled in women with patellofemoral pain: A randomized controlled trial. Phys Ther Sport 2021; 49:149-156. [PMID: 33689989 DOI: 10.1016/j.ptsp.2021.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To compare the effectiveness of adding anteromedial versus posterolateral hip musculature strengthening to knee strengthening in women with patellofemoral pain (PFP). DESIGN Randomized controlled trial. SETTING University physiotherapy clinic. PARTICIPANTS Fifty-two women with PFP were randomized to receive either anteromedial (AMHG) or posterolateral (PLHG) hip musculature strengthening. MAIN OUTCOME MEASURES The primary outcomes were pain intensity by the numeric pain rating scale and function by the Anterior Knee Pain Scale in six weeks. Secondary outcomes were pain and function at six months, global perceived effect at six weeks and six months, pain in step down, isometric torque of abductors, adductors and hip rotators measured with hand-held dynamometer, and dynamic knee valgus by step down in six weeks. RESULTS Both groups showed improvement in primary outcomes; however, no differences were found between groups in pain intensity and function in six weeks and the secondary outcomes. Group x time interaction found superior gains in abductor strength in the PLHG and increase in the strength of the adductors and internal rotators in AMHG. CONCLUSION There was no difference between the addition of anteromedial or posterolateral hip musculature strengthening to knee strengthening in improving pain and function in women with PFP.
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Affiliation(s)
- Gabriel Peixoto Leão Almeida
- Knee and Sports Research Group, Physical Therapy Department, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Master Program in Physical Therapy and Functioning, Physical Therapy Department, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil.
| | | | - Bruno Augusto Lima Coelho
- Knee and Sports Research Group, Physical Therapy Department, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Carlos Augusto Silva Rodrigues
- Knee and Sports Research Group, Physical Therapy Department, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Master Program in Physical Therapy and Functioning, Physical Therapy Department, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Pedro Olavo de Paula Lima
- Knee and Sports Research Group, Physical Therapy Department, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Master Program in Physical Therapy and Functioning, Physical Therapy Department, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
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21
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Trunk Inclination During Squatting is a Better Predictor of the Knee-Extensor Moment Than Shank Inclination. J Sport Rehabil 2021; 30:899-904. [PMID: 33596542 DOI: 10.1123/jsr.2020-0397] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/27/2020] [Indexed: 12/16/2022]
Abstract
CONTEXT A limitation of previous studies on squatting mechanics is that the influence of trunk and shank inclination on the knee-extensor moment (KEM) has been studied in isolation. OBJECTIVE The purpose of the current study was to determine the influence of segment orientation on the KEM during freestanding barbell squatting. DESIGN Repeated-measures cross sectional. SETTING University research laboratory. PARTICIPANTS Sixteen healthy individuals (8 males and 8 females). INTERVENTION Each participant performed 8 squat conditions in which shank and trunk inclinations were manipulated. MAIN OUTCOME MEASURES 3D kinematic and kinetic data were collected at 250 and 1500 Hz, respectively. Regression analysis was conducted to identify the individual relationships between the KEM and the trunk and shank inclination at 60° and 90° of knee flexion. To identify the best predictor(s) of the KEM, stepwise regression was implemented. RESULTS Increased shank inclination increased the KEM (P < .001, R2 = .21-.25). Conversely, increased trunk inclination decreased the KEM (P < .001, R2 = .49-.50). For the stepwise regression, trunk inclination entered first and explained the greatest variance in the KEM (all P < .001, R2 = .49-.50). Shank inclination entered second (all P < .010, R2 = .53-.54) and explained an additional 3% to 5% of the variance. CONCLUSIONS Our results confirm that inclination of the trunk and shank have an opposing relationship with the KEM. Increased forward shank posture increases the KEM, while increased forward trunk posture decreases the KEM. However, when viewed in combination, the trunk was the superior predictor of the KEM, highlighting the fact that increased quadriceps demand created by a forward shank can be offset by trunk inclination.
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McClinton SM, Cobian DG, Heiderscheit BC. Physical Therapist Management of Anterior Knee Pain. Curr Rev Musculoskelet Med 2020; 13:776-787. [PMID: 33128200 PMCID: PMC7661565 DOI: 10.1007/s12178-020-09678-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/19/2020] [Indexed: 11/27/2022]
Abstract
PURPOSE OF REVIEW Anterior knee pain is a common musculoskeletal complaint among people of all ages and activity levels. Non-operative approaches with an emphasis on physical therapy management are the recommended initial course of care. The purpose of this review is to describe the current evidence for physical therapist management of anterior knee pain with consideration of biomechanical and psychosocial factors. RECENT FINDINGS The latest research suggests anterior knee pain is a combination of biomechanical, neuromuscular, behavioral, and psychological factors. Education strategies to improve the patient's understanding of the condition and manage pain are supported by research. Strong evidence continues to support the primary role of exercise therapy and load progression to achieve long-term improvements in pain and function. Preliminary studies suggest blood flow restriction therapy and movement retraining may be useful adjunct techniques but require further well-designed studies. Anterior knee pain includes multiple conditions with patellofemoral pain being the most common. An insidious onset is typical and often attributed to changes in activity and underlying neuromuscular impairments. A thorough clinical history and physical examination aim to identify the patient's pain beliefs and behaviors, movement faults, and muscle performance that will guide treatment recommendations. Successful physical therapist management involves a combination of individualized patient education, pain management, and load control and progression, with an emphasis on exercise therapy.
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Affiliation(s)
- Shane M. McClinton
- Doctor of Physical Therapy Program, Des Moines University, Des Moines, IA USA
| | - Daniel G. Cobian
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, WI USA
| | - Bryan C. Heiderscheit
- Departments of Orthopedics & Rehabilitation and Biomedical Engineering, University of Wisconsin-Madison, Madison, WI USA
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Patellofemoral Joint Loading During Single-Leg Hopping Exercises. J Sport Rehabil 2020; 29:1131-1136. [PMID: 31869816 DOI: 10.1123/jsr.2019-0135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 10/22/2019] [Accepted: 10/23/2019] [Indexed: 11/18/2022]
Abstract
CONTEXT Single-leg hopping is used to assess a dynamic knee stability. Patellofemoral pain is often experienced during these exercises, and different cadences of jumping are often used in rehabilitation for those with patellofemoral pain. No studies to date have examined patellofemoral joint loading during single-leg hopping exercise with different hopping cadences. OBJECTIVE To determine if single-leg hopping at 2 different cadences (50 and 100 hops per minute [HPM]) leads to a significant difference in patellofemoral joint loading variables. SETTING University research laboratory. PARTICIPANTS Twenty-five healthy college-aged females (age 22.3 [1.8] y, height 171.4 [6.3] cm, weight 67.4 [9.5] kg, Tegner Activity Scale 4.75 [1.75]) participated. MAIN OUTCOME MEASURES Three-dimensional kinematic and kinetic data were measured using a 15-camera motion capture system and force platform. Static optimization was used to calculate muscle forces and then used in a musculoskeletal model to determine patellofemoral joint stress (PFJS), patellofemoral joint reaction force (PFJRF), quadriceps force (QF), and PFJRF loading rate, during the first and last 50% of stance phase. RESULTS Greater maximal PFJRF occurred at 100 HPM, whereas greater PFJRF loading rate occurred at 50 HPM. However, overall peak QF and peak PFJS were not different between the 2 cadences. At 50 HPM, there was greater PFJS, PFJRF, peak PFJRF loading rate, and peak QF during the first 50% of stance when compared with the last 50%. CONCLUSION Training at 50 HPM may reduce PFJRF and PFJRF loading rate, but not PFJS or QF. Patellofemoral joint loading variables had significantly higher values during the first half of the stance phase at the 50 HPM cadence. This may be important with training individuals with patellofemoral pain.
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Kalo K, Niederer D, Sus R, Sohrabi K, Banzer W, Groß V, Vogt L. Reprint of "The detection of knee joint sounds at defined loads by means of vibroarthrography". Clin Biomech (Bristol, Avon) 2020; 79:105175. [PMID: 32978020 DOI: 10.1016/j.clinbiomech.2020.105175] [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: 07/02/2019] [Accepted: 01/30/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Crepitus of the knee may mirror structural and functional changes in the joint during motion. Although the magnitude of these sounds increases with greater cartilage damage, it is unclear whether knee joint sounds also reflect joint loading. METHODS Twelve healthy volunteers (mean 26 (SD 3.6) years, 7 females) participated in the randomized-balanced crossover study. Knee joint sounds were recorded (linear sampling, 5512 Hz) by means of two microphones, one placed on the medial tibial plateau and one on the patella. Two activities of daily living (standing up from/sitting down on a bench; descending stairs) and three open kinetic chain knee extension-flexion cycles (passive movement, 10% and 40% loading of the individual one repetition maximum) were performed. Each participant carried out three sets of five repetitions and three sets of 15 steps downwards (stairs), respectively. For data analysis, the mean sound amplitude and the median power frequency for each loading condition were determined. Friedman test and Bonferroni-Holm adjusted post-hoc test were performed to detect differences between conditions. FINDINGS We obtained significant differences between joint sound amplitudes for all movements, both measured at the medial tibial plateau (Chi2 = 20.7, p < 0.001) and at the patella (Chi2 = 27.6, p < 0.001). We showed a significant difference in the median power frequency of the patella between all movements (Chi2 = 17.8, p < 0.5). INTERPRETATION Overall, the larger the supposed knee joint loading was, the louder was the recorded knee crepitus. Consequently, vibroarthrographically assessed knee joint sounds can differ across knee joint loading conditions.
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Affiliation(s)
- Kristin Kalo
- Department of Sports Medicine, Goethe University Frankfurt am Main, Germany.
| | - Daniel Niederer
- Department of Sports Medicine, Goethe University Frankfurt am Main, Germany
| | - Rainer Sus
- Faculty of Health Sciences, University of Applied Sciences, Giessen, Germany
| | - Keywan Sohrabi
- Faculty of Health Sciences, University of Applied Sciences, Giessen, Germany
| | - Winfried Banzer
- Department of Preventive and Sports Medicine, Institute for Occupational, Social and Environmental Medicine, Goethe University Frankfurt am Main, Germany
| | - Volker Groß
- Faculty of Health Sciences, University of Applied Sciences, Giessen, Germany
| | - Lutz Vogt
- Department of Sports Medicine, Goethe University Frankfurt am Main, Germany
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Ołowiana E, Selkow N, Laudner K, Puciato D, Bączkowicz D. Vibroarthrographic analysis of patellofemoral joint arthrokinematics during squats with increasing external loads. BMC Sports Sci Med Rehabil 2020; 12:51. [PMID: 32874592 PMCID: PMC7457288 DOI: 10.1186/s13102-020-00201-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 08/24/2020] [Indexed: 12/20/2022]
Abstract
Background The patellofemoral joint (PFJ) provides extremely low kinetic friction, which results in optimal arthrokinematic motion quality. Previous research showed that these friction-reducing properties may be diminished due to the increase in articular contact forces. However, this phenomenon has not been analyzed in vivo during functional daily-living activities. The aim of this study was the vibroarthrographic assessment of changes in PFJ arthrokinematics during squats with variated loads. Methods 114 knees from 57 asymptomatic subjects (23 females and 34 males) whose ages ranged from 19 to 26 years were enrolled in this study. Participants were asked to perform 3 trials: 4 repetitions of bodyweight squats (L0), 4 repetitions of 10 kg barbell back loaded squats (L10), 4 repetitions of 20 kg barbell back loaded squats (L20). During the unloaded and loaded (L10, L20) squats, vibroarthrographic signals were collected using an accelerometer placed on the patella and were described by the following parameters: variation of mean square (VMS), mean range (R4), and power spectral density for frequency of 50–250 Hz (P1) and 250–450 Hz (P2). Results Obtained results showed that the lowest values were noted in the unloaded condition and that the increased applied loads had a significant concomitant increase in all the aforementioned parameters bilaterally (p < 0.05). Conclusion This phenomenon indicates that the application of increasing knee loads during squats corresponds to higher intensity of vibroacoustic emission, which might be related to higher contact stress and kinetic friction as well as diminished arthrokinematic motion quality.
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Affiliation(s)
- Ewelina Ołowiana
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, PL-45-578 Opole, Poland
| | - Noelle Selkow
- Illinois State University, School of Kinesiology and Recreation, Normal, IL USA
| | - Kevin Laudner
- Beth El College of Nursing and Health Sciences, University of Colorado, Colorado Springs, CO USA
| | - Daniel Puciato
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, PL-45-578 Opole, Poland
| | - Dawid Bączkowicz
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, PL-45-578 Opole, Poland
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Lopes Ferreira C, Barroso FO, Torricelli D, Pons JL, Politti F, Lucareli PRG. Women with patellofemoral pain show altered motor coordination during lateral step down. J Biomech 2020; 110:109981. [DOI: 10.1016/j.jbiomech.2020.109981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/19/2020] [Accepted: 08/01/2020] [Indexed: 12/29/2022]
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Acute Effects of Hip Mobilization With Movement Technique on Pain and Biomechanics in Females With Patellofemoral Pain: A Randomized, Placebo-Controlled Trial. J Sport Rehabil 2020; 29:707-715. [PMID: 31141424 DOI: 10.1123/jsr.2018-0497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 03/25/2019] [Accepted: 05/12/2019] [Indexed: 11/18/2022]
Abstract
CONTEXT People with patellofemoral pain (PFP) present altered lower-limb movements during some activities. Perhaps, joint misalignment in the hip is one of the reasons for altered movement patterns in people with PFP. Some mobilization techniques have been designed to address joint misalignments. OBJECTIVE To investigate the acute effects of hip mobilization with movement (MWM) technique on pain and biomechanics during squats and jumps in females with and without PFP. DESIGN Randomized, placebo-controlled trial. SETTING Movement analysis laboratory. PATIENTS Fifty-six physically active females (28 with PFP and 28 asymptomatic) were divided into 4 groups: experimental group with PFP, sham group with PFP, experimental group without PFP, and sham group without PFP. INTERVENTION(S) The experimental groups received MWM for the hip, and the sham groups received sham mobilization. MAIN OUTCOME MEASURES Pain, trunk, and lower-limb kinematics, and hip and knee kinetics during single-leg squats and landings. RESULTS After the interventions, no difference between groups was found for pain. The PFP experimental group decreased hip internal rotation during squats compared with the PFP sham group (P = .03). There was no other significant difference between PFP groups for kinematic or kinetic outcomes during squats, as well as for any outcome during landings. There was no difference between asymptomatic groups for any of the outcomes in any of the tasks. CONCLUSIONS Hip mobilization was ineffective to reduce pain in people with PFP. Hip MWM may contribute to dynamic lower-limb realignment in females with PFP by decreasing hip internal rotation during squats. Therefore, hip MWM could be potentially useful as a complementary intervention for patients with PFP.
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Flores V, Becker J, Burkhardt E, Cotter J. Knee Kinetics During Squats of Varying Loads and Depths in Recreationally Trained Women. J Strength Cond Res 2020. [DOI: 10.1519/jsc.0000000000002509] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kalo K, Niederer D, Sus R, Sohrabi K, Banzer W, Groß V, Vogt L. The detection of knee joint sounds at defined loads by means of vibroarthrography. Clin Biomech (Bristol, Avon) 2020; 74:1-7. [PMID: 32062324 DOI: 10.1016/j.clinbiomech.2020.01.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 01/13/2020] [Accepted: 01/30/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Crepitus of the knee may mirror structural and functional changes in the joint during motion. Although the magnitude of these sounds increases with greater cartilage damage, it is unclear whether knee joint sounds also reflect joint loading. METHODS Twelve healthy volunteers (mean 26 (SD 3.6) years, 7 females) participated in the randomized-balanced crossover study. Knee joint sounds were recorded (linear sampling, 5512 Hz) by means of two microphones, one placed on the medial tibial plateau and one on the patella. Two activities of daily living (standing up from/sitting down on a bench; descending stairs) and three open kinetic chain knee extension-flexion cycles (passive movement, 10% and 40% loading of the individual one repetition maximum) were performed. Each participant carried out three sets of five repetitions and three sets of 15 steps downwards (stairs), respectively. For data analysis, the mean sound amplitude and the median power frequency for each loading condition were determined. Friedman test and Bonferroni-Holm adjusted post-hoc test were performed to detect differences between conditions. FINDINGS We obtained significant differences between joint sound amplitudes for all movements, both measured at the medial tibial plateau (Chi2 = 20.7, p < 0.001) and at the patella (Chi2 = 27.6, p < 0.001). We showed a significant difference in the median power frequency of the patella between all movements (Chi2 = 17.8, p < 0.5). INTERPRETATION Overall, the larger the supposed knee joint loading was, the louder was the recorded knee crepitus. Consequently, vibroarthrographically assessed knee joint sounds can differ across knee joint loading conditions.
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Affiliation(s)
- Kristin Kalo
- Department of Sports Medicine, Goethe University Frankfurt am Main, Germany.
| | - Daniel Niederer
- Department of Sports Medicine, Goethe University Frankfurt am Main, Germany
| | - Rainer Sus
- Faculty of Health Sciences, University of Applied Sciences, Giessen, Germany
| | - Keywan Sohrabi
- Faculty of Health Sciences, University of Applied Sciences, Giessen, Germany
| | - Winfried Banzer
- Department of Preventive and Sports Medicine, Institute for Occupational, Social and Environmental Medicine, Goethe University Frankfurt am Main, Germany
| | - Volker Groß
- Faculty of Health Sciences, University of Applied Sciences, Giessen, Germany
| | - Lutz Vogt
- Department of Sports Medicine, Goethe University Frankfurt am Main, Germany
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Steinberg N, Tenenbaum S, Waddington G, Adams R, Zakin G, Zeev A, Siev-Ner I. Isometric exercises and somatosensory training as intervention programmes for patellofemoral pain in young dancers. Eur J Sport Sci 2019; 20:845-857. [PMID: 31573838 DOI: 10.1080/17461391.2019.1675766] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Patellofemoral pain (PPF) is a common problem experienced by young dancers. Currently, there is no clear indication as to the optimal intervention programme for reducing the level of pain and improving functional abilities in young dancers with PFP. Our aim was to examine the efficacy of two intervention programmes compared with controls in relation to PFP symptoms (shown by pain level, Grinding test, and patellar inhibition test-PIT) and functional abilities of dancers with PFP. Ninety-eight young dancers (mean age 13.4 ± .97) with PFP were assessed for clinical parameters and functional abilities pre and post an intervention programme lasting 12 weeks. Using cluster sampling controlling for grade and school, the dancers were divided into three groups: isometric exercises (IE), somatosensory training (ST), and control (CO). Post-intervention, significantly lower pain levels upon patellar provocation testing were reported for the two treatment groups compared with controls. There was a significantly lower rate of legs recovered in the CO group compared with both intervention groups on the Grinding test, and on the PIT. Postural balance ability and proprioception abilities were significantly better post-treatment for the two treatment groups compared with controls. A significant interaction showed that hip abduction muscle strength improved more in the IE group. In conclusion, both isometric exercises and somatosensory training were effective for decreasing clinical symptoms and improving some functional abilities in young dancers with PFP. Further studies on these types of interventions could determine the most effective training protocol for prevention and treatment of PFP in young dancers.
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Affiliation(s)
- Nili Steinberg
- The Wingate College of physical Education and Sports Sciences, The Wingate Institute, Netanya, Israel.,Faculty of Health, University of Canberra, Canberra, Australia
| | - Shay Tenenbaum
- Department of orthopedic surgery, Chaim Sheba medical center Tel-Hashomer, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | - Roger Adams
- Faculty of Health, University of Canberra, Canberra, Australia
| | - Gal Zakin
- The Wingate College of physical Education and Sports Sciences, The Wingate Institute, Netanya, Israel
| | - Aviva Zeev
- The Wingate College of physical Education and Sports Sciences, The Wingate Institute, Netanya, Israel
| | - Itzhak Siev-Ner
- Orthopedic Rehabilitation Dept., Sheba Medical Center, Tel-Hashomer, Israel
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Abstract
Patellofemoral pain (PFP) is a common musculoskeletal-related condition that is characterized by insidious onset of poorly defined pain, localized to the anterior retropatellar and/or peripatellar region of the knee. The onset of symptoms can be slow or acutely develop with a worsening of pain accompanying lower-limb loading activities (eg, squatting, prolonged sitting, ascending/descending stairs, jumping, or running). Symptoms can restrict participation in physical activity, sports, and work, as well as recur and persist for years. This clinical practice guideline will allow physical therapists and other rehabilitation specialists to stay up to date with evolving PFP knowledge and practices, and help them to make evidence-based treatment decisions. J Orthop Sports Phys Ther. 2019;49(9):CPG1-CPG95. doi:10.2519/jospt.2019.0302.
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Abstract
OBJECTIVE To investigate the effectiveness of an isometric squat exercise using a portable belt, on patellar tendon pain and function, in athletes during their competitive season. DESIGN Case series with no requirements to change any aspect of games or training. The object of this pragmatic study was to investigate this intervention in addition to "usual management." A control or sham intervention was considered unacceptable to teams. SETTING In-season. PARTICIPANTS A total of 25 male and female elite and subelite athletes from 5 sports. INTERVENTION 5 × 30-second isometric quadriceps squat exercise using a rigid belt completed over a 4-week period. MAIN OUTCOME MEASURES (1) single-leg decline squat (SLDS)-a pain provocation test for the patellar tendon (numerical rating score of pain between 0 and 10), (2) VISA-P questionnaire assessing patellar tendon pain and function, and (3) self-reported adherence with completing the exercise over a 4-week period. RESULTS Baseline SLDS pain was high for these in-season athletes, median 7.5/10 (range 3.5-9) and was significantly reduced over the 4-week intervention (P < 0.001, ES r = 0.580, median change 3.5). VISA-P scores improved after intervention (P < 0.001, ES r = 0.568, mean change 12.2 ± 8.9, percentage mean change 18.8%, where minimum clinical important difference of relative change for VISA-P is 15.4%-27%). Adherence was high; athletes reported completing the exercise 5 times per week. CONCLUSIONS This pragmatic study suggests that a portable isometric squat reduced pain in-season for athletes with patellar tendinopathy (PT). This form of treatment may be effective, but clinical trials with a control group are needed to confirm the results.
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Cerqueira MS, de Brito Vieira WH. Effects of blood flow restriction exercise with very low load and low volume in patients with knee osteoarthritis: protocol for a randomized trial. Trials 2019; 20:135. [PMID: 30777115 PMCID: PMC6379934 DOI: 10.1186/s13063-019-3238-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/31/2019] [Indexed: 12/26/2022] Open
Abstract
Background Knee osteoarthritis (OA) is characterized by chronic pain, physical dysfunction, and reduced quality of life. Low-load resistance exercises with blood flow restriction (BFR) have presented results similar to those of high-intensity resistance exercise (HIRE) without BFR provided that the exercise volume in both is paired. However, it is unclear whether BFR exercise with reduced load and volume generates clinical improvements similar to those of HIRE. The aim of the proposed study is to evaluate the effects of BFR resistance exercise with very low load and low volume against HIRE in patients with knee OA for the outcomes of knee pain, muscle performance, physical function, disease severity, quality of life, perceived exertion during the exercises, adherence, and patient satisfaction with treatment. Methods This two-arm, prospectively registered, randomized controlled trial with blinded assessors and volunteers will involve 40 patients with knee OA. Two weekly treatment sessions will be provided for 12 weeks. Patients will perform very low-load (10% of 1-RM) and low-volume BFR exercise or HIRE (60% of 1-RM) for strengthening thigh muscles. The primary outcome will be the knee pain measured after 12 weeks of treatment. The secondary outcomes include knee pain 6 months after randomization, physical function, disease severity, quality of life, muscle performance, knee pain and perceived exertion during exercise, adherence, and patient satisfaction with treatment. Discussion If the improvements in the outcomes are similar in the two groups, BFR exercise with reduced load and volume may be an interesting alternative in the treatment of knee OA, especially when exercises with high loads generate joint pain. Trial registration Registro Brasileiro de Ensaios Clínicos (REBEC), RBR-6pcrfm. Registered on July 10, 2018. Electronic supplementary material The online version of this article (10.1186/s13063-019-3238-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mikhail Santos Cerqueira
- Department of Physical Therapy, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 - Campus Universitário, Lagoa Nova, Natal, Rio Grande do Norte, 59072-970, Brazil.
| | - Wouber Hérickson de Brito Vieira
- Department of Physical Therapy, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 - Campus Universitário, Lagoa Nova, Natal, Rio Grande do Norte, 59072-970, Brazil
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Lenton GK, Saxby DJ, Lloyd DG, Billing D, Higgs J, Doyle TL. Primarily hip-borne load carriage does not alter biomechanical risk factors for overuse injuries in soldiers. J Sci Med Sport 2019; 22:158-163. [DOI: 10.1016/j.jsams.2018.06.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 05/28/2018] [Accepted: 06/21/2018] [Indexed: 10/28/2022]
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Bolgla LA, Boling MC, Mace KL, DiStefano MJ, Fithian DC, Powers CM. National Athletic Trainers' Association Position Statement: Management of Individuals With Patellofemoral Pain. J Athl Train 2018; 53:820-836. [PMID: 30372640 DOI: 10.4085/1062-6050-231-15] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE: To present recommendations for athletic trainers and other health care providers regarding the identification of risk factors for and management of individuals with patellofemoral pain (PFP). BACKGROUND: Patellofemoral pain is one of the most common knee diagnoses; however, this condition continues to be one of the most challenging to manage. Recent evidence has suggested that certain risk factors may contribute to the development of PFP. Early identification of risk factors may allow clinicians to develop and implement programs aimed at reducing the incidence of this condition. To date, clinicians have used various treatment strategies that have not necessarily benefitted all patients. Suboptimal outcomes may reflect the need to integrate clinical practice with scientific evidence to facilitate clinical decision making. RECOMMENDATIONS: The recommendations are based on the best available evidence. They are intended to give athletic trainers and other health care professionals a framework for identifying risk factors for and managing patients with PFP.
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Affiliation(s)
- Lori A Bolgla
- Department of Physical Therapy, Augusta University, GA
| | - Michelle C Boling
- Department of Clinical and Applied Movement Sciences, University of North Florida, Jacksonville
| | | | | | | | - Christopher M Powers
- Department of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles
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Briani RV, De Oliveira Silva D, Flóride CS, Aragão FA, de Albuquerque CE, Magalhães FH, de Azevedo FM. Quadriceps neuromuscular function in women with patellofemoral pain: Influences of the type of the task and the level of pain. PLoS One 2018; 13:e0205553. [PMID: 30304030 PMCID: PMC6179260 DOI: 10.1371/journal.pone.0205553] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 09/27/2018] [Indexed: 12/30/2022] Open
Abstract
The present study aimed at investigating whether the neuromuscular system behaves differently (in terms of force and muscle activity generation) as a function of the task being performed (i.e. maximal voluntary efforts vs stair negotiation) and the presence of patellofemoral pain (PFP) and possible influences of pain intensity. Thirty-eight women with (n = 19) and without PFP (n = 19) had their knee strength (extension joint torque) measured during maximal voluntary isometric contractions (MVIC) and electromyography (EMG) data recorded during both MVIC and stair ascent tasks, which were performed before and after a loading protocol designed to exacerbate pain symptoms. Women with PFP displayed lower levels of vastus medialis (p = 0.002) and vastus lateralis (p = 0.032) EMG activation during MVIC assessments. Conversely, the PFP group showed higher levels of vastus medialis muscle activity during stair climbing (p = 0.007), which happened exclusively after the loading protocol. Similarly, women with PFP displayed lower knee extensor torque only during the MVIC tests performed after the loading protocol, which was moderately correlated with the increase in self-reported pain (p = 0.041, r = 0.37), whereas the changes in EMG activity during stair ascent were not correlated with changes in pain intensity (p = 0.215, r = 0.12). These results suggest that, in comparison to pain-free controls, women with PFP display lower levels of quadriceps EMG activation during maximal contractions, but higher activation during dynamic tasks (stair ascent). In addition, the moderate association between the decrease in knee extensor torque and increase in self-reported pain indicates that care should be taken by clinicians during quadriceps strength evaluation in women with PFP, as misleading outcomes may emerge if the intensity of knee pain is not considered during screening. Additionally, rehabilitation strategies should focus on both restoring neuromuscular control and increasing muscle strength.
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Affiliation(s)
- Ronaldo Valdir Briani
- Physical Therapy Department, School of Science and Technology, São Paulo State University, Presidente Prudente, Sao Paulo, Brazil
- * E-mail:
| | - Danilo De Oliveira Silva
- Physical Therapy Department, School of Science and Technology, São Paulo State University, Presidente Prudente, Sao Paulo, Brazil
| | - Carolina Silva Flóride
- Department of Physical Therapy, State University of West of Parana, Research Laboratory of Human Movement, Cascavel, Paraná, Brazil
| | - Fernando Amâncio Aragão
- Department of Physical Therapy, State University of West of Parana, Research Laboratory of Human Movement, Cascavel, Paraná, Brazil
| | - Carlos Eduardo de Albuquerque
- Department of Physical Therapy, State University of West of Parana, Research Laboratory of Human Movement, Cascavel, Paraná, Brazil
| | | | - Fábio Mícolis de Azevedo
- Physical Therapy Department, School of Science and Technology, São Paulo State University, Presidente Prudente, Sao Paulo, Brazil
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Pua YH, Poon CLL, Seah FJT, Mentiplay BF, Ho CL, Leong FL, Chong HC, Lim ECW, Clark RA. Comparative performance of isometric and isotonic quadriceps strength testing in total knee arthroplasty. Musculoskelet Sci Pract 2018; 37:17-19. [PMID: 29958120 DOI: 10.1016/j.msksp.2018.06.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/22/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Early quadriceps muscle strength assessment after a total knee arthroplasty (TKA) provides timely information on progress, but little is known about the pain profile and predictive validity associated with common clinical muscle strength tests. This study aimed to, in patients with a recent TKA, examine the associations of isometric and isotonic quadriceps strength with gait speed, accounting for knee pain experienced during testing. METHODS A sample of 76 patients (mean age 68 years; 46 women) with a recent TKA (median, 1.5 months) participated. Quadriceps strength was measured on both limbs using a knee extension machine. Isotonic strength was assessed with a one-repetition maximum test. Isometric strength was measured at 40° and 70° of knee flexion using a custom-built load cell. To allow for valid comparisons between the tests, quadriceps strength symmetry ratios were calculated. Knee pain during testing was measured using an 11-point pain scale. Fast gait speed was measured using the 10-m walk test. RESULTS Compared with isotonic test, quadriceps strength ratio was higher for the 40° flexion isometric test (P = 0.01), and this difference may be explained by the lower knee pain intensity elicited during the isometric tests (P's < 0.001). All strength measures were closely associated with fast gait speed after adjustment for knee pain and covariates (P's < 0.001). CONCLUSIONS Early in the post-TKA period, isometric and isotonic strength tests may be used to assess quadriceps strength but these tests are not interchangeable. Isometric quadriceps testing may be preferable to isotonic testing as it was associated with lower knee pain intensity.
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Affiliation(s)
- Yong-Hao Pua
- Department of Physiotherapy, Singapore General Hospital, Singapore.
| | | | | | - Benjamin F Mentiplay
- La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Australia
| | - Choo-Lye Ho
- Biomedical Engineering Department, Singapore General Hospital, Singapore
| | - Foh-Lik Leong
- Biomedical Engineering Department, Singapore General Hospital, Singapore
| | - Hwei-Chi Chong
- Department of Physiotherapy, Singapore General Hospital, Singapore
| | | | - Ross Alan Clark
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Australia
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Galloway RT, Xu Y, Hewett TE, Foss KB, Kiefer AW, DiCesare CA, Magnussen RA, Khoury J, Ford KR, Diekfuss JA, Grooms D, Myer GD, Montalvo AM. Age-Dependent Patellofemoral Pain: Hip and Knee Risk Landing Profiles in Prepubescent and Postpubescent Female Athletes. Am J Sports Med 2018; 46:2761-2771. [PMID: 30091937 PMCID: PMC9709661 DOI: 10.1177/0363546518788343] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Female athletes are at an increased risk of developing patellofemoral pain (PFP) relative to male athletes. The unique effects of maturation may compound that risk. Hypothesis/Purpose: The purpose was to evaluate the neuromuscular control mechanisms that are adaptive to pubertal maturation and determine their relative contribution to PFP development. It was hypothesized that aberrant landing mechanics (reduced sagittal-plane and increased frontal- and transverse-plane kinematics and kinetics) would be associated with an increased risk for PFP. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS There were 506 high school female athletes who completed a detailed medical history, the Anterior Knee Pain Scale, and a knee examination for the diagnosis of PFP and attended follow-up appointments. Athletes performed a drop vertical jump task instrumented with force plates, and biomechanical measures generated from standard 3-dimensional biomechanical analyses were used to classify participants into high- or low-risk knee and hip landing profiles for the development of PFP. The biomechanical measures used in the knee landing profile included sagittal-plane knee range of motion, peak knee abduction angle, peak knee abduction moment, and peak-to-peak transverse-plane knee moment. The biomechanical measures used in the hip landing profile included sagittal-plane hip range of motion, peak hip extensor moment, peak abductor moment, and peak hip rotator moment. Testing was conducted at sport-specific preseason appointments over the course of 2 years, and changes in pubertal status, landing profile, and PFP development were documented. RESULTS Female athletes with high-risk hip landing profiles experienced increased hip flexion and decreased abductor, rotator, and extensor moments. Participants with high-risk hip landing profiles who transitioned to postpubertal status at follow-up had higher odds (odds ratio, 2.1 [95% CI, 1.1-4.0]; P = .02) of moving to a low-risk hip landing profile compared with those who had not reached postpubertal status at follow-up. Participants with high-risk knee landing profiles experienced decreased knee flexion and increased knee abduction, external abductor, and external rotator moments. Pubertal maturation was not associated with a change in the high-risk knee landing profile at follow-up. CONCLUSION The progression from prepubertal to postpubertal status may have a protective effect on high-risk hip mechanics but no similar adaptations in high-risk knee mechanics during maturation. These data indicate that before puberty, maladaptive hip mechanics may contribute to PFP, while aberrant knee mechanics associated with PFP are sustained throughout the maturational process in young female athletes.
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Affiliation(s)
- Ryan T. Galloway
- Division of Sports Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA,Duke University School of Medicine, Durham, North Carolina, USA
| | - Yingying Xu
- Division of General and Community Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Timothy E. Hewett
- Orthopedic Biomechanics Laboratory, Mayo Clinic, Rochester, Minnesota, USA,Departments of Orthopedic Surgery, Physical Medicine & Rehabilitation, and Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
| | - Kim Barber Foss
- Division of Sports Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA,Rocky Mountain University of Health Professions, Provo, Utah, USA,Department of Allied Health, Northern Kentucky University, Highland Heights, Kentucky, USA
| | - Adam W. Kiefer
- Division of Sports Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA,Center for Cognition, Action & Perception, University of Cincinnati, Cincinnati, Ohio, USA
| | - Christopher A. DiCesare
- Division of Sports Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Robert A. Magnussen
- Department of Orthopaedics, The Ohio State University College of Medicine, Columbus, Ohio, USA,Sports Health and Performance Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Jane Khoury
- Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Kevin R. Ford
- Department of Physical Therapy, High Point University, High Point, North Carolina, USA
| | - Jed A. Diekfuss
- Division of Sports Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Dustin Grooms
- Ohio Musculoskeletal and Neurological Institute, Ohio University, Athens, Ohio, USA,Division of Athletic Training, School of Applied Health Sciences and Wellness, College of Health Sciences and Professions, Ohio University, Athens, Ohio, USA
| | - Gregory D. Myer
- Address correspondence to Gregory D. Myer, PhD, FACSM, CSCS*D, Division of Sports Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, MLC 10001, Cincinnati, OH 45229, USA ()
| | - Alicia M. Montalvo
- Department of Athletic Training, Nicole Wertheim College of Nursing and Health Sciences, Florida International University, Miami, Florida, USA
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The test retest reliability of gait outcomes in subjects with anterior knee pain. J Bodyw Mov Ther 2018; 22:476-481. [PMID: 29861253 DOI: 10.1016/j.jbmt.2017.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 05/04/2017] [Accepted: 05/16/2017] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Anterior knee pain (AKP) is a common condition frequently causing young, athletic patients to attend sports rehabilitation centres. Abnormal biomechanics are thought to contribute towards the development and chronicity of the condition. Gait analysis is commonly used to identify abnormal biomechanics in subjects with AKP, however the reliability of these measurements are unknown. Therefore, the aim of this study was to quantify the test retest reliability of hip, knee and ankle kinematics during gait in an AKP population so the true effects of an intervention can be established. METHODS Thirty-one subjects with AKP attended the 3D Motion Analysis Laboratory at Tygerberg Medical Campus of Stellenbosch University in Cape Town, South Africa, for gait analysis. Participants returned seven days later at approximately the same time to repeat the gait analysis assessment from day one. The same assessor tested all subjects on both occasions. The intra-class correlation coefficients (ICC) and standard error of measurement (SEM) were calculated for hip, knee and ankle kinematic outcomes on the affected side and used for analysis. RESULTS All outcomes obtained were acceptable to excellent test retest reliability scores for both measures of relative reliability (ICC = 0.78-0.9) and measures of absolute reliability (SEM = 0.94-4.2°). Hip frontal plane and ankle sagittal plane outcomes were the most reliable and had the lowest measurement error. Hip transverse plane outcomes were least reliable and demonstrated the highest measurement error. CONCLUSION Hip, knee and ankle kinematic factors that are commonly associated with AKP can be measured reliably using gait analysis. Daily and weekly variation in symptoms in an AKP population may influence the reliability of knee sagittal plane outcomes. Therefore, it is important to document factors that could influence the kinematics such as pain, activity levels and the use of pain medication.
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40
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The influence of cadence and shoes on patellofemoral joint kinetics in runners with patellofemoral pain. J Sci Med Sport 2018; 21:574-578. [DOI: 10.1016/j.jsams.2017.09.593] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 07/07/2017] [Accepted: 09/26/2017] [Indexed: 11/17/2022]
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Capin JJ, Snyder-Mackler L. The current management of patients with patellofemoral pain from the physical therapist's perspective. ANNALS OF JOINT 2018; 3. [PMID: 31414069 DOI: 10.21037/aoj.2018.04.11] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Patellofemoral pain (PFP) is a common diagnosis that includes an amalgam of conditions that are typically non-traumatic in origin and result in peripatellar and/or retropatellar knee pain. The purpose of this review is to provide an overview of the physical therapist's management, including the evaluation and treatment, of the patient with PFP. A thorough history is critical for appropriately diagnosing and optimally managing PFP; the history should include the date of symptom onset, mechanism of injury and/or antecedent events, location and quality of pain, exacerbating and alleviating symptoms, relevant past medical history, occupational demands, recreational activities, footwear, and patient goals. Physical examination should identify the patient's specific impairments, assessing range of motion (ROM), muscle length, effusion, resisted isometrics, strength, balance and postural control, special tests, movement quality, palpation, function, and patient reported outcome measures. Objective assessments should guide treatment, progression, and clinical decision-making. The rehabilitation program should be individually tailored, addressing the patient's specific impairments and functional limitations and achieving the patient's goals. Exercise therapy, including hip, knee, and core strengthening as well as stretching and aerobic exercise, are central to the successful management of PFP. Other complimentary treatments may include patellofemoral and tibiofemoral joint mobilizations, patellofemoral taping, neuromuscular training, and gait retraining. Appropriate progression of interventions should consider objective evaluations (e.g., effusion, soreness rules), systematic increases in loading, and the chronicity of symptoms. Although short-term changes or reductions in movement often are necessary in a protective capacity, the persistence of altered movement is a key characteristic of chronic pain, which may be managed in part through emphasis on function over symptoms, graded exposure, patient education, and perhaps referral. PFP etiology is largely movement related and a comprehensive conservative treatment using movement can be successful.
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Affiliation(s)
- Jacob John Capin
- Biomechanics and Movement Science, University of Delaware, Newark, Delaware, USA
| | - Lynn Snyder-Mackler
- Biomechanics and Movement Science, University of Delaware, Newark, Delaware, USA.,Physical Therapy, University of Delaware, Newark, Delaware, USA
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42
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Keogh JW, Grigg J, Vertullo CJ. Is high-intensity interval cycling feasible and more beneficial than continuous cycling for knee osteoarthritic patients? Results of a randomised control feasibility trial. PeerJ 2018; 6:e4738. [PMID: 29761054 PMCID: PMC5949056 DOI: 10.7717/peerj.4738] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 04/19/2018] [Indexed: 01/22/2023] Open
Abstract
Background Knee osteoarthritis (OA) patients often suffer joint pain and stiffness, which contributes to negative changes in body composition, strength, physical performance (function), physical activity and health-related quality of life. To reduce these symptoms and side effects of knee OA, moderate-intensity continuous training (MICT) cycling is often recommended. While resistance training is considered the optimal form of training to improve sarcopenic outcomes, it imposes higher joint loads and requires supervision, either initially or continuously by trained exercise professionals. Therefore, this pilot study sought to gain some insight into the feasibility and potential benefits of high-intensity interval training (HIIT) cycling as an alternative exercise option to MICT cycling for individuals with knee OA. Methods Twenty-seven middle-aged and older adults with knee OA were randomly allocated to either MICT or HIIT, with both programs involving four unsupervised home-based cycling sessions (∼25 min per session) each week for eight weeks. Feasibility was assessed by enrolment rate, withdrawal rate, exercise adherence and number of adverse effects. Efficacy was assessed by health-related quality of life (Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Lequesne index), physical function (Timed Up and Go (TUG), Sit to Stand (STS) and preferred gait speed) and body composition (body mass, BMI, body fat percentage and muscle mass). Results Twenty-seven of the interested 50 potential participants (54%) enrolled in the study, with 17 of the 27 participants completing the trial (withdrawal rate of 37%); with the primary withdrawal reasons being unrelated injuries or illness or family related issues. Of the 17 participants who completed the trial, exercise adherence was very high (HIIT 94%; MICT 88%). While only three individuals (one in the MICT and two in the HIIT group) reported adverse events, a total of 28 adverse events were reported, with 24 of these attributed to one HIIT participant. Pre–post-test analyses indicated both groups significantly improved their WOMAC scores, with the HIIT group also significantly improving in the TUG and STS. The only significant between-group difference was observed in the TUG, whereby the HIIT group improved significantly more than the MICT group. No significant changes were observed in the Lequesne index, gait speed or body composition for either group. Discussion An unsupervised home-based HIIT cycle program appears somewhat feasible for middle-aged and older adults with knee OA and may produce similar improvements in health-related quality of life but greater improvements in physical function than MICT. These results need to be confirmed in larger randomised controlled trials to better elucidate the potential for HIIT to improve outcomes for those with knee OA. Additional research needs to identify and modify the potential barriers affecting the initiation and adherence to home-based HIIT cycling exercise programs by individuals with knee OA.
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Affiliation(s)
- Justin W Keogh
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia.,Human Potential Centre, Auckland University of Technology, Auckland, New Zealand.,Cluster for Health Improvement, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Sunshine Coast, QLD, Australia
| | - Josephine Grigg
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia
| | - Christopher J Vertullo
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia.,Knee Research Australia, Gold Coast, QLD, Australia
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Nunes GS, Scattone Silva R, Dos Santos AF, Fernandes RAS, Serrão FV, de Noronha M. Methods to assess patellofemoral joint stress: A systematic review. Gait Posture 2018; 61:188-196. [PMID: 29353744 DOI: 10.1016/j.gaitpost.2017.12.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 12/15/2017] [Accepted: 12/16/2017] [Indexed: 02/02/2023]
Abstract
Changes in patellofemoral joint (PFJ) stress are related to the development and course of PFJ dysfunctions. Different methods for PFJ stress calculation have been used, making the comparison of PFJ stress values across different studies difficult. The purpose of this study was to systematically review the methods for PFJ stress calculation and highlight the differences among the methods. A systematic literature search was conducted in Medline, Embase, CINAHL, SPORTDiscus and Web of Science databases. Included studies examined PFJ stress in subjects with or without musculoskeletal conditions. Of 12,670 identified studies, 53 were included, with a total of 1134 subjects evaluated. The main differences among the methods to calculate PFJ stress were: i) method to calculate PFJ contact area; ii) method to calculate a constant (coefficient k) that defines the relation between quadriceps force and PFJ reaction force; iii) the inclusion of adjustments for sagittal plane forces. Considerable variability in PFJ stress results was observed. The greatest PFJ stress value was 55.03 MPa during a dance jump and the lowest value was 1.9 MPa during walking at the speed of 1.4 m/s. Most studies applied methods which use data from previous studies. However, methods which use data from their own participants for most parts of the calculation might be preferred to minimize potential errors. When direct measures are not possible, a standard method could be applied to facilitate comparisons among studies.
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Affiliation(s)
- Guilherme S Nunes
- Department of Physiotherapy, Federal University of São Carlos, São Carlos, Brazil.
| | - Rodrigo Scattone Silva
- Faculty of Health Sciences of Trairi, Federal University of Rio Grande do Norte, Santa Cruz, Brazil
| | | | - Ricardo A S Fernandes
- Department of Electrical Engineering, Federal University of São Carlos, São Carlos, Brazil
| | | | - Marcos de Noronha
- Department of Community and Allied Health, La Trobe University, Bendigo, VIC, Australia
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How can we implement exercise therapy for patellofemoral pain if we don’t know what was prescribed? A systematic review. Br J Sports Med 2017; 52:385. [DOI: 10.1136/bjsports-2017-097547] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2017] [Indexed: 12/21/2022]
Abstract
ObjectiveTo evaluate the completeness of exercise prescription in randomised controlled trials (RCTs) for patellofemoral pain (PFP), identify which elements are most frequently missing and supplement recommendations based on additional data from authors.DesignSystematic review.Data sourcesAll studies included in the most recent Cochrane review were evaluated. Additionally, the Cochrane search was updated in June 2016 in Cochrane, MEDLINE, EMBASE, PEDro, CINAHL and AMED databases. Two raters independently assessed completeness of reporting using the Toigo and Boutellier mechanobiological exercise descriptors, and Template for Intervention Description and Replication (TIDieR) checklist. Authors were also contacted to provide additional information.Eligibility criteria for selecting studiesRCTs of exercise interventions for PFP.ResultsWe included 38 RCTs. The level of exercise prescription detail was low, with no study providing complete information. The most commonly reported exercise descriptors were the ’duration of the experimental period' (n=38/38) and ’number of exercise interventions' (n=35). From TIDieR, the most commonly reported items were the ’intervention name' (n=38) and ’rationale' (n=36).The least reported items from the exercise descriptors were ’volitional muscular failure', ’temporal distribution of contraction modes', ’time under tension' and ’recovery between exercise sessions' (all n=2/38). From TIDieR, the least reported item was ‘How well (fidelity and adherence)’ (n=3/38).36 authors were contacted, with 22 replies and 13 providing additional exercise prescription details .ConclusionExercise prescriptions in RCTs with proven efficacy for PFP are poorly reported, impairing their implementation in clinical practice.PROSPERO registration numberCRD42016039138.
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Leibbrandt DC, Louw Q. The development of an evidence-based clinical checklist for the diagnosis of anterior knee pain. SOUTH AFRICAN JOURNAL OF PHYSIOTHERAPY 2017; 73:353. [PMID: 30135903 PMCID: PMC6093140 DOI: 10.4102/sajp.v73i1.353] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 12/03/2016] [Indexed: 11/22/2022] Open
Abstract
Background Anterior knee pain (AKP) or patellofemoral pain syndrome is common and may limit an individual’s ability to perform common activities of daily living such as stair climbing and prolonged sitting. The diagnosis is difficult as there are multiple definitions for this disorder and there are no accepted criteria for diagnosis. It is therefore most commonly a diagnosis that is made once other pathologies have been excluded. Objectives The aim of this study was to create an evidence-based checklist for researchers and clinicians to use for the diagnosis of AKP. Methods A systematic review was conducted in July 2016, and an evidence-based checklist was created based on the subjective and objective findings most commonly used to diagnose AKP. For the subjective factors, two or more of the systematic reviews needed to identify the factor as being important in the diagnosis of AKP. Results Two systematic reviews, consisting of nine different diagnostic studies, were identified by our search methods. Diagnosis of AKP is based on the area of pain, age, duration of symptoms, common aggravating factors, manual palpation and exclusion of other pathologies. Of the functional tests, squatting demonstrated the highest sensitivity. Other useful tests include pain during stair climbing and prolonged sitting. The cluster of two out of three positive tests for squatting, isometric quadriceps contraction and palpation of the patella borders and the patella tilt test were also recommended as useful tests to include in the clinical assessment. Conclusion A diagnostic checklist is useful as it provides a structured method for diagnosing AKP in a clinical setting. Research is needed to establish the causes of AKP as it is difficult to diagnose a condition with unknown aetiology.
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Affiliation(s)
- Dominique C Leibbrandt
- Department of Physiotherapy/FNB-3D Movement Analysis Laboratory, Faculty of Medicine and Health Sciences, University of Stellenbosch, South Africa
| | - Quinette Louw
- Department of Physiotherapy/FNB-3D Movement Analysis Laboratory, Faculty of Medicine and Health Sciences, University of Stellenbosch, South Africa
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46
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Leibbrandt D, Louw Q. Kinematic factors associated with anterior knee pain during common aggravating activities: a systematic review. PHYSICAL THERAPY REVIEWS 2017. [DOI: 10.1080/10833196.2017.1283832] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Dominique Leibbrandt
- Faculty of Medicine and Health Sciences, University of Stellenbosch, Physiotherapy Division/FNB-3D Movement Analysis Laboratory , Tygerberg, South Africa
| | - Quinette Louw
- Faculty of Medicine and Health Sciences, University of Stellenbosch, Physiotherapy Division/FNB-3D Movement Analysis Laboratory , Tygerberg, South Africa
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Clark RA, Seah FJT, Chong HC, Poon CLL, Tan JWM, Mentiplay BF, Pua YH. Standing balance post total knee arthroplasty: sensitivity to change analysis from four to twelve weeks in 466 patients. Osteoarthritis Cartilage 2017; 25:42-45. [PMID: 27577930 DOI: 10.1016/j.joca.2016.08.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 08/05/2016] [Accepted: 08/20/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Little is known about how static standing balance changes post total knee arthroplasty (TKA). The primary aim of this study was to examine the sensitivity to change and redundancy of center of pressure (COP) variables post-TKA. The secondary aim was to compare the sensitivity of these measures to standard clinical assessments of one repetition maximum knee extension strength and fast pace gait speed. DESIGN 466 participants performed instrumented double-limb standing balance tests with eyes open at 4 and 12 weeks post-TKA. Measures of COP standard deviation, amplitude, root mean square (RMS), path length, detrended fluctuation analysis (DFA) and signal frequency content for the medial-lateral (ML) and anterior-posterior (AP) axes were examined. RESULTS Significant decreases in total path length, ML variables related to sway velocity and AP signal complexity and frequency were observed. Inter-session Cohen's d effect size (ES) revealed the strongest effect was for high velocity ML path length, with a 12% decrease in this rapid sway. This variable, along with AP mean instantaneous frequency and AP DFA, were the only ones significantly different with effect sizes >0.20 and non-redundant (Spearman's rho <0.75). The ES of COP-derived variables (maximum = 0.45) were lower than gait speed (1.40) and knee extensor strength (1.54). CONCLUSION Increased high velocity ML sway is present at four compared to 12 weeks post-TKA. This augmented rapid sway may provide increased challenges to the postural control system at a time coinciding with reduced strength levels, which could have implications for physical function during activities of daily living.
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Affiliation(s)
- R A Clark
- School of Health and Sports Science, University of the Sunshine Coast, Australia.
| | - F J-T Seah
- Department of Physiotherapy, Singapore General Hospital, Singapore
| | - H-C Chong
- Department of Physiotherapy, Singapore General Hospital, Singapore
| | - C L-L Poon
- Department of Physiotherapy, Singapore General Hospital, Singapore
| | - J W-M Tan
- Department of Physiotherapy, Singapore General Hospital, Singapore
| | - B F Mentiplay
- School of Health and Sports Science, University of the Sunshine Coast, Australia
| | - Y-H Pua
- Department of Physiotherapy, Singapore General Hospital, Singapore
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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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Culvenor AG, Collins NJ, Guermazi A, Cook JL, Vicenzino B, Whitehead TS, Morris HG, Crossley KM. Early Patellofemoral Osteoarthritis Features One Year After Anterior Cruciate Ligament Reconstruction: Symptoms and Quality of Life at Three Years. Arthritis Care Res (Hoboken) 2016; 68:784-92. [DOI: 10.1002/acr.22761] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 09/21/2015] [Accepted: 10/13/2015] [Indexed: 01/22/2023]
Affiliation(s)
- Adam G. Culvenor
- University of Queensland, Brisbane, Queensland, and La Trobe University, Melbourne, Victoria, Australia, and Paracelsus Medical University–Salzburg & NuremburgSalzburg Austria
| | - Natalie J. Collins
- University of Queensland, Brisbane, Queensland, and University of MelbourneMelbourne Victoria Australia
| | - Ali Guermazi
- Boston University School of MedicineBoston Massachusetts
| | - Jill L. Cook
- La Trobe University and Monash UniversityMelbourne Victoria Australia
| | | | - Timothy S. Whitehead
- University of Queensland, Brisbane, Queensland, and La Trobe UniversityMelbourne Victoria Australia
| | - Hayden G. Morris
- The Park Clinic and St. Vincent's Private Hospital, Melbourne, Victoria, Australia
| | - Kay M. Crossley
- University of Queensland, Brisbane, Queensland, and La Trobe University, Melbourne, Victoria, Australia
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Patellofemoral Osteoarthritis: Are We Missing an Important Source of Symptoms After Anterior Cruciate Ligament Reconstruction? J Orthop Sports Phys Ther 2016; 46:232-4. [PMID: 27032529 DOI: 10.2519/jospt.2016.0603] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Anterior cruciate ligament (ACL) rupture is a well-established risk factor for knee osteoarthritis (OA). Fifty to ninety percent of individuals will develop radiographic tibiofemoral OA within a decade after ACL injury and anterior cruciate ligament reconstruction (ACLR). Although less well recognized, radiographic patellofemoral OA is present in approximately 50% of individuals at more than 10 years after ACLR. This early-onset OA and its associated pain and functional limitations pose a particular challenge to younger adults with OA compared to an older OA population. Targeted interventions need to be developed to reduce the burden of early-onset OA following ACLR. Emerging evidence suggests that such interventions should target both the patellofemoral and tibiofemoral joints.
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