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Yoshii R, Konishi Y, Ochiai S, Hagino T, Takeshita D, Yamagata Z. Abnormality in re-programing of preparatory muscle activity for landing following unpredictable events in patients with anterior cruciate ligament injury. Knee 2024; 49:8-16. [PMID: 38824769 DOI: 10.1016/j.knee.2024.05.004] [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: 10/15/2023] [Revised: 03/17/2024] [Accepted: 05/09/2024] [Indexed: 06/04/2024]
Abstract
BACKGROUND Anterior cruciate ligament deficiency (ACL-D) causes dysfunction in the quadriceps femoris muscle, and this dysfunction hampers a safe return to sports. However, how the dysfunctional quadriceps femoris muscle affects instantaneous re-programming of motor command in response to unpredictable events remains unknown. This study aimed to examine the effects of ACL-D on re-programming of preparatory muscle activity during an unpredictable landing task. METHODS Eighteen patients with ACL-D and 20 healthy participants (controls) performed normal landing and surprise landing tasks. In the surprise landing task, a false floor, designed to dislodge easily under load, was positioned in the middle of the descent path. This setup causes participants to unpredictably fall through the false floor onto the actual landing surface. Electromyography data collected during the period after passing through the false floor until landing was segmented into two equal halves. The average electromyography amplitude for each muscle in each period was compared between patients and controls. RESULTS In the vastus medialis and rectus femoris during the surprise landing task, the average electromyography amplitude during only the second half period in patients with ACL-D was significantly smaller than that in controls (p = 0.011 and 0.004, respectively). CONCLUSIONS Abnormalities were detected in the re-programming of preparatory muscle activation during an unpredictable landing task in the vastus medialis and rectus femoris of patients with ACL-D. The surprise landing task used in the present study has the potential to become a diagnostic tool to evaluate readiness for safely returning to sports.
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Affiliation(s)
- Ryo Yoshii
- Department of Rehabilitation, National Hospital Organization, Kofu National Hospital, 11-35 Tenjincho, Kofu City, Yamanashi 400-8533, Japan; Department of Health Sciences, Division of Medicine, Interdisciplinary Graduate School, University of Yamanashi, 1110 Shimokato, Chuo City, Yamanashi 409-3898, Japan
| | - Yu Konishi
- Department of Physical Education, National Defense Academy of Japan, 1-10-20 Hashirimizu, Yokosuka City, Kanagawa 239-8686, Japan
| | - Satoshi Ochiai
- The Sports Medicine and Knee Center, National Hospital Organization, Kofu National Hospital, 11-35 Tenjincho, Kofu City, Yamanashi 400-8533, Japan
| | - Tetsuo Hagino
- The Sports Medicine and Knee Center, National Hospital Organization, Kofu National Hospital, 11-35 Tenjincho, Kofu City, Yamanashi 400-8533, Japan
| | - Daisuke Takeshita
- Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan.
| | - Zentaro Yamagata
- Department of Health Sciences, Division of Medicine, Interdisciplinary Graduate School, University of Yamanashi, 1110 Shimokato, Chuo City, Yamanashi 409-3898, Japan
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Chen P, Wang L, Dong S, Ding Y, Jia S, Zheng C. Can Symmetry of Single-Leg Vertical Jump Height Represent Normal Lower Limb Biomechanics of Athletes After Anterior Cruciate Ligament Reconstruction? Sports Health 2024; 16:596-605. [PMID: 37554095 PMCID: PMC11195865 DOI: 10.1177/19417381231190119] [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] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND After anterior cruciate ligament reconstruction (ACLR), single-leg horizontal hop distance limb symmetry index (LSI) >90% is recommended as a cutoff point for safe return to sport (RTS). However, athletes after ACLR have abnormal lower limb biomechanics despite an adequate single-leg hop distance LSI, implying that athletes are at high risk of reinjury. Symmetry of single-leg vertical jump height appears to be more difficult to achieve and can be a better representation of knee function than single-leg horizontal hop distance. HYPOTHESIS Athletes after ACLR with single-leg jump height LSI >90% had similar biomechanical characteristics to healthy athletes. STUDY DESIGN Controlled laboratory study. LEVEL OF EVIDENCE Level 3. METHODS A total of 46 athletes after ACLR were divided into low jump height (LJH, jump height LSI <90%, n = 23) and high jump height (HJH, jump height LSI >90%, n = 23) groups according to symmetry of single-leg vertical jump height, while 24 healthy athletes acted as a control (CONT) group. One-way analysis of variance was used to compare the kinematic and kinetic characteristics of the LJH, HJH, and CONT groups during single-leg vertical jump. RESULTS Both the LJH and HJH groups demonstrated greater limb asymmetry (lower LSI) during landing compared with the CONT group in knee extension moment (P < 0.05), peak knee flexion angle (P < 0.05), and knee power (P < 0.05). CONCLUSION Symmetry in single-leg vertical jump height does not represent normal lower limb biomechanics in athletes after ACLR. CLINICAL RELEVANCE Symmetrical jump height may not signify ideal biomechanical or RTS readiness, but single-leg vertical jump test can be used as a supplement to horizontal hop test or other functional tests to reduce the likelihood of false-negative results in the absence of detailed biomechanical evaluation.
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Affiliation(s)
- Peng Chen
- School of Sports Medicine, Wuhan Sports University, Wuhan, Hubei Province, China
- Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan, Hubei Province, China
| | - Ling Wang
- School of Sports Medicine, Wuhan Sports University, Wuhan, Hubei Province, China
- Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan, Hubei Province, China
| | - Shiyu Dong
- College of Basic Medicine of Fujian Medical University, Fuzhou, Fujian Province, China
| | - Yue Ding
- School of Sports Medicine, Wuhan Sports University, Wuhan, Hubei Province, China
- Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan, Hubei Province, China
| | - Shaohui Jia
- School of Sports Medicine, Wuhan Sports University, Wuhan, Hubei Province, China
- Hubei Provincial Key Laboratory of Sports Training and Monitoring, Wuhan Sports University, Wuhan, Hubei Province, China
| | - Cheng Zheng
- Department of Sports Medicine, Affiliated Hospital, Wuhan Sports University, Wuhan, Hubei Province, China
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Paredes R, Crasto C, Mesquita Montes A, Arias-Buría JL. Changes in co-contraction magnitude during functional tasks following anterior cruciate ligament reconstruction: A systematic review. Knee 2024; 48:243-256. [PMID: 38781829 DOI: 10.1016/j.knee.2024.05.005] [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: 10/10/2023] [Revised: 03/24/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Anterior cruciate ligament reconstruction (ACLR) is a common orthopedic surgery procedure whose incidence has increased over the past few decades. Nevertheless, it is believed that neuromuscular control remains altered from the early stages after ACLR to later years. Therefore, the aim of this study was to systematically evaluate the magnitude of co-contraction during functional tasks in subjects with unilateral ACLR. METHODS A systematic review design was followed. The search strategy was conducted in PubMed, Scopus, EBSCO, PEDro, Cochrane Library, and Web of Science databases from inception to March 2024. The inclusion criteria involved studies using electromyography (EMG) data to calculate muscle pair activation via the co-contraction index (CCI) in ACLR individuals during functional tasks. The Preferred Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed, and study quality was evaluated using National Institutes of Health (NIH) Study Quality Assessment Tools. RESULTS The search strategy found a total of 792 studies, of which 15 were included in this systematic review after reviewing the eligibility criteria. The magnitude of co-contraction was assessed in a total of 433 ACLR individuals and 206 controls during functional tasks such as hop, drop-land, step-up/step-down, and gait. Overall, approximately 79.6% of individuals who had undergone ACLR exhibited increased levels of co-contraction magnitude in the ACLR limb, while 8.5% showed low co-contraction levels. CONCLUSIONS The findings of the review suggest that, during functional tasks, most individuals who have undergone ACLR exhibit changes of co-contraction magnitude in the involved limb.
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Affiliation(s)
- Ricardo Paredes
- Escuela Internacional de Doctorado, Universidad Rey Juan Carlos, Alcorcón, Spain; Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Spain.
| | - Carlos Crasto
- Escola Superior de Saúde de Santa Maria, Oporto, Portugal; Escola Superior de Saúde do Politécnico do Porto, Oporto, Portugal
| | - António Mesquita Montes
- Escola Superior de Saúde de Santa Maria, Oporto, Portugal; Escola Superior de Saúde do Politécnico do Porto, Oporto, Portugal
| | - José L Arias-Buría
- Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Spain
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Dennis JD, Holmes SC, Heredia C, Shumski EJ, Pamukoff DN. Lower extremity joint angle, moment, and coordination throughout a double limb drop vertical jump in individuals with anterior cruciate ligament reconstruction. Sports Biomech 2024:1-16. [PMID: 38767326 DOI: 10.1080/14763141.2024.2356845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 05/02/2024] [Indexed: 05/22/2024]
Abstract
Individuals with anterior cruciate ligament reconstruction (ACLR) utilise different landing biomechanics between limbs, but previous analyses have not considered the continuous or simultaneous joint motion that occurs during landing and propulsion. The purpose of this study was to compare sagittal plane ankle/knee and knee/hip coordination patterns as well as ankle, knee, and hip angles and moments and vertical ground reaction force (vGRF) between the ACLR and uninjured limbs during landing and propulsion. Fifteen females and thirteen males performed a drop vertical jump from a 30 cm box placed half their height from force platforms. Coordination was compared using a modified vector coding technique and binning analysis. Kinematics and kinetics were time normalised for waveform analyses. Coordination was not different between limbs. The ACLR limb had smaller dorsiflexion angles from 11 to 16% of landing and 24 to 75% of landing and propulsion, knee flexion moments from 5 to 15% of landing, 20 to 31% of landing, and 35 to 91% of landing and propulsion, and vGRF from 92 to 94% of propulsion compared with the uninjured limb. The ACLR limb exhibited smaller dorsiflexion angles to potentially reduce the knee joint moment arm and mitigate the eccentric and concentric demands on the ACLR knee during landing and propulsion, respectively.
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Affiliation(s)
- Justin D Dennis
- Department of Exercise and Sports Science, University of North Carolina, Chapel Hill, NC, USA
- Department of Kinesiology, California State University, Fullerton, CA, USA
| | - Skylar C Holmes
- Department of Kinesiology, University of Massachusetts, Amherst, MA, USA
| | - Caitlyn Heredia
- Department of Sports Medicine, New England Revolution, Foxborough, MA, USA
| | - Eric J Shumski
- Department of Kinesiology, University of Georgia, Athens, GA, USA
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Lowe T, Dong XN, Griffin L. Hamstrings vibration reduces tibiofemoral compressive force following anterior cruciate ligament reconstruction. J Orthop Res 2024; 42:788-797. [PMID: 37975273 DOI: 10.1002/jor.25736] [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: 03/24/2023] [Revised: 10/11/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023]
Abstract
Individuals who have undergone anterior cruciate ligament reconstruction (ACLR) are at greater risk of developing knee osteoarthritis (OA). This elevated risk of knee OA is associated with high tibiofemoral (TF) compressive force, due to a combination of low knee flexion angles and increased co-contraction of the hamstrings and quadriceps during limb loading. Prolonged vibration of the hamstrings fatigues the intrafusal muscle fibers, which reduces autonomic reflexive excitation of the hamstrings and alleviates reciprocal inhibition to the quadriceps. The aim of this study was to examine the effect of prolonged hamstrings vibration on TF compressive force in individuals who have undergone ACL reconstruction. Fourteen participants with unilateral ACLR and 14 participants without knee injury performed a single-leg drop-land task before and after prolonged (20 min) vibration of the hamstrings. Peak TF compressive force, knee flexion angle, and hamstrings/quadriceps co-contraction were calculated during the deceleration phase of the drop-land task before and after vibration. The ACLR group experienced an 18% decrease in TF compressive force, a 32% increase in knee flexion angle, and a 38% decrease in hamstrings/quadriceps co-contraction after hamstrings vibration. There was no difference in any of the parameters in the noninjured group after vibration. These data suggest that acute prolonged hamstrings vibration has the potential to mitigate TF compressive force, which may protect the knee joint in the long term. Clinical significance: The results of this research are expected to lead to improved clinical care for ACLR patients because it holds promise for mitigating altered joint mechanics and perhaps slowing down the onset of posttraumatic knee osteoarthritis.
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Affiliation(s)
- Timothy Lowe
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
| | - Xuanliang Neil Dong
- Department of Health and Kinesiology, The University of Texas at Tyler, Tyler, Texas, USA
| | - Lisa Griffin
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas, USA
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Grace N, McNair PJ, Young SW. Progressive submaximal effort hamstring muscle endurance is reduced after reconstruction of the anterior cruciate ligament. Musculoskelet Sci Pract 2024; 70:102898. [PMID: 38241881 DOI: 10.1016/j.msksp.2023.102898] [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: 05/11/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 01/21/2024]
Abstract
BACKGROUND Endurance capability in the muscles controlling the knee is poorly understood post anterior cruciate ligament (ACL) reconstruction, despite many sporting activities requiring notable muscle endurance. The hamstring muscles, when active, provide important anatomical support to protect the reconstructed graft. In the absence of good hamstring endurance, fatigue may predispose individuals to re-injury. OBJECTIVE To assess whether ACL reconstruction (ACLR) with a hamstring graft leads to reduced hamstring endurance 9-13 months post-surgery. STUDY DESIGN A cross-sectional inter-limb comparison study was undertaken with participants 9-13 months after an ACLR with a hamstring graft, and a group of age, sex, and activity-matched controls. There were 22 participants in each group. METHOD Submaximal hamstring endurance was measured using a progressive fatigue test on an isokinetic dynamometer at a joint angular velocity of 120°/second. The dependant variable was the maximum number of repetitions performed. Statistical comparisons were made across injured, uninjured and control group limbs. RESULTS There was a significant (p < 0.05) deficit in hamstring endurance observed between the injured leg (mean: 111 repetitions, SD 49) and uninjured leg (mean: 136 repetitions, SD 67) of the ACL group, but not between the uninjured and control group legs (mean: 124 repetitions, SD 50). CONCLUSION The 18% deficit in submaximal hamstring endurance across the ACL-reconstructed individual's limbs is indicative of a notable loss in muscle performance at 9-13 months post-surgery. These results provide initial evidence for supporting further research examining the inclusion of hamstring endurance training in ACL rehabilitation programmes post-surgery.
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Affiliation(s)
- Nuala Grace
- Health and Rehabilitation Research Institute, Auckland University of Technology, Auckland, New Zealand
| | - Peter J McNair
- Health and Rehabilitation Research Institute, Auckland University of Technology, Auckland, New Zealand.
| | - Simon W Young
- Dept of Surgery, University of Auckland, Auckland, New Zealand; Dept of Orthopaedic Surgery, North Shore Hospital, Private Bag 93-503, Auckland, 0740, New Zealand
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Ishida T, Ino T, Yamakawa Y, Wada N, Koshino Y, Samukawa M, Kasahara S, Tohyama H. Estimation of Vertical Ground Reaction Force during Single-leg Landing Using Two-dimensional Video Images and Pose Estimation Artificial Intelligence. Phys Ther Res 2024; 27:35-41. [PMID: 38690532 PMCID: PMC11057390 DOI: 10.1298/ptr.e10276] [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: 11/06/2023] [Accepted: 01/09/2024] [Indexed: 05/02/2024]
Abstract
OBJECTIVE Assessment of the vertical ground reaction force (VGRF) during landing tasks is crucial for physical therapy in sports. The purpose of this study was to determine whether the VGRF during a single-leg landing can be estimated from a two-dimensional (2D) video image and pose estimation artificial intelligence (AI). METHODS Eighteen healthy male participants (age: 23.0 ± 1.6 years) performed a single-leg landing task from a 30-cm height. The VGRF was measured using a force plate and estimated using center of mass (COM) position data from a 2D video image with pose estimation AI (2D-AI) and three-dimensional optical motion capture (3D-Mocap). The measured and estimated peak VGRFs were compared using a paired t-test and Pearson's correlation coefficient. The absolute errors of the peak VGRF were also compared between the two estimations. RESULTS No significant difference in the peak VGRF was found between the force plate measured VGRF and the 2D-AI or 3D-Mocap estimated VGRF (force plate: 3.37 ± 0.42 body weight [BW], 2D-AI: 3.32 ± 0.42 BW, 3D-Mocap: 3.50 ± 0.42 BW). There was no significant difference in the absolute error of the peak VGRF between the 2D-AI and 3D-Mocap estimations (2D-AI: 0.20 ± 0.16 BW, 3D-Mocap: 0.13 ± 0.09 BW, P = 0.163). The measured peak VGRF was significantly correlated with the estimated peak by 2D-AI (R = 0.835, P <0.001). CONCLUSION The results of this study indicate that peak VGRF estimation using 2D video images and pose estimation AI is useful for the clinical assessment of single-leg landing.
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Affiliation(s)
- Tomoya Ishida
- Faculty of Health Sciences, Hokkaido University, Japan
| | - Takumi Ino
- Faculty of Health Sciences, Hokkaido University of Science, Japan
| | | | - Naofumi Wada
- Faculty of Engineering, Hokkaido University of Science, Japan
| | - Yuta Koshino
- Faculty of Health Sciences, Hokkaido University, Japan
| | - Mina Samukawa
- Faculty of Health Sciences, Hokkaido University, Japan
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Chen P, Wang L, Dong S, Ding Y, Zuo H, Jia S, Wang G, Chen C, Zheng C. Abnormal Lower Limb Biomechanics During a Bilateral Vertical Jump Despite the Symmetry in Single-Leg Vertical Hop Height in Athletes After ACL Reconstruction. Orthop J Sports Med 2024; 12:23259671241230989. [PMID: 38414664 PMCID: PMC10898320 DOI: 10.1177/23259671241230989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 08/30/2023] [Indexed: 02/29/2024] Open
Abstract
Background A limb symmetry index (LSI) of >90% for single-leg horizontal hop distance is recommended as a cutoff point for safe return to sports after anterior cruciate ligament reconstruction (ACLR). Despite achieving this threshold, abnormal lower limb biomechanics continue to persist in athletes after ACLR. Symmetry in single-leg vertical hop height appears to be more difficult to achieve and can be a better representation of knee function than single-leg horizontal hop distance. Purpose To explore whether an LSI of >90% for single-leg vertical hop height can represent normal lower limb biomechanics in athletes during a bilateral vertical jump after ACLR. Study Design Controlled laboratory study. Methods According to the LSI for single-leg vertical hop height, 46 athletes who had undergone ACLR with an autologous ipsilateral bone-patellar tendon-bone or hamstring tendon graft were divided into a low symmetry group (LSI <90%; n = 23) and a high symmetry group (LSI >90%; n = 23), and 24 noninjured athletes were selected as the control group. The kinematic and kinetic characteristics during a bilateral vertical jump were compared between the low symmetry, high symmetry, and control groups. Results During the propulsion phase of the bilateral vertical jump, the operated side in the high symmetry group showed a lower knee extension moment than the nonoperated side (P = .001). At peak vertical ground-reaction force, the operated side in the high symmetry group showed a lower knee internal rotation moment compared with the control group (P = .016). Compared with the nonoperated side, the operated side in the high symmetry group showed a higher hip extension moment (P = .002), lower knee extension moment (P < .001), lower ankle plantarflexion moment (P < .001), and lower vertical ground-reaction force (P = .023). Conclusion Despite achieving an LSI of >90% for single-leg vertical hop height, athletes after ACLR showed abnormal lower limb biomechanical characteristics during the bilateral vertical jump. Clinical Relevance Symmetrical single-leg vertical hop height may not signify ideal biomechanical or return-to-sports readiness in this population.
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Affiliation(s)
- Peng Chen
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
- Key Laboratory of Sports Engineering of the General Administration of Sport of China, Wuhan Sports University, Wuhan, China
| | - Ling Wang
- Key Laboratory of Sports Engineering of the General Administration of Sport of China, Wuhan Sports University, Wuhan, China
- School of Sports Medicine, Wuhan Sports University, Wuhan, China
| | - Shiyu Dong
- College of Basic Medicine, Fujian Medical University, Fuzhou, China
| | - Yue Ding
- Key Laboratory of Sports Engineering of the General Administration of Sport of China, Wuhan Sports University, Wuhan, China
- School of Sports Medicine, Wuhan Sports University, Wuhan, China
| | - Huiwu Zuo
- School of Sports Medicine, Wuhan Sports University, Wuhan, China
| | - Shaohui Jia
- School of Sports Medicine, Wuhan Sports University, Wuhan, China
| | - Guanglan Wang
- School of Sports Medicine, Wuhan Sports University, Wuhan, China
| | - Can Chen
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Cheng Zheng
- Department of Sports Medicine, Affiliated Hospital, Wuhan Sports University, Wuhan, China
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Huby CL, Miari I, Hagen M, Verschueren S, Vanrenterghem J, Smeets A. Push-Off Dynamics Reveal Task-Independent Alterations in Athletes Returning to Sport after ACL Reconstruction. Med Sci Sports Exerc 2022; 54:2045-2053. [PMID: 35797624 DOI: 10.1249/mss.0000000000002994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE Athletes with an anterior cruciate ligament (ACL) reconstruction (ACLR) show persisting biomechanical and neuromuscular landing alterations. So far, most research focused on the landing phase of dynamic tasks where most ACL injuries occur. This study will assess whether these landing alterations are also present in the propulsion phase, in an attempt to identify generalized movement alterations. METHODS Twenty-one athletes with ACLR (cleared by their surgeon and/or physiotherapist for return-to-sport) and twenty-one controls performed five single-leg hop tasks. Propulsion kinematics, kinetics, and muscle activations were compared between legs and between groups. RESULTS Increased hamstrings activation was found during propulsion when comparing the ACLR limb with both the uninjured limb and the controls. In addition, decreased internal knee extension moments were found in the ACLR limb compared with the uninjured limb. CONCLUSIONS Athletes with ACLR show task-independent alterations that unload the knee during the propulsion phase of single-leg hopping tasks. If longitudinal data deem these alterations to be maladaptive, more emphasis must be placed on their normalization during the propulsion phase, assuming beneficial carryover effects into the landing phase. Normalizing these patterns during rehabilitation may potentially reduce the risk of long-term complications such as reinjuries and posttraumatic osteoarthritis.
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Affiliation(s)
- Claire Louise Huby
- Musculoskeletal Rehabilitation Research Group, Faculty of Kinesiology and Rehabilitation Sciences, KU Leuven, Leuven, BELGIUM
| | - Ioanna Miari
- Musculoskeletal Rehabilitation Research Group, Faculty of Kinesiology and Rehabilitation Sciences, KU Leuven, Leuven, BELGIUM
| | - Michiel Hagen
- Musculoskeletal Rehabilitation Research Group, Faculty of Kinesiology and Rehabilitation Sciences, KU Leuven, Leuven, BELGIUM
| | - Sabine Verschueren
- Musculoskeletal Rehabilitation Research Group, Faculty of Kinesiology and Rehabilitation Sciences, KU Leuven, Leuven, BELGIUM
| | - Jos Vanrenterghem
- Musculoskeletal Rehabilitation Research Group, Faculty of Kinesiology and Rehabilitation Sciences, KU Leuven, Leuven, BELGIUM
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Perry A, DeFroda S, Leporace G, Metsavaht L, Coxe CR, Bierman AM, Chahla J. ACL Rehabilitation: How Can We Lessen Injury Rates? OPER TECHN SPORT MED 2022. [DOI: 10.1016/j.otsm.2022.150892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ma W, Pan CY, Diehl LH, Wittstein JR, Riboh JC, Toth AP, Amendola A, Faherty MS, Killelea C, Le DT, Sell TC. Altered lower extremity biomechanics following anterior cruciate ligament reconstruction during single-leg and double-leg stop-jump tasks: A bilateral total support moment analysis. Clin Biomech (Bristol, Avon) 2022; 91:105533. [PMID: 34847471 DOI: 10.1016/j.clinbiomech.2021.105533] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 11/09/2021] [Accepted: 11/16/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Injury to the anterior cruciate ligament (ACL) can lead to long-lasting biomechanical alterations that put individuals at risk of a second ACL injury. Examining the total support moment may reveal between- and within-limb compensatory strategies. METHODS Twenty-six participants who were cleared to return to sport following ACL reconstruction were recruited. Each participant completed the single-leg and double-leg stop jump tasks. These tasks were analyzed using force plates and a 3D motion analysis system. The total support moment was calculated by summing the internal moments of the hip, knee and ankle at peak vertical ground reaction force. FINDINGS Internal knee extensor moment was lower in the involved limb compared to the uninvolved for both tasks (17.6%, P = 0.022; 18.4%, P = 0.008). No significant between-limb differences were found for the total support moment. The involved limb exhibited an 18.2% decrease in knee joint contribution (P = 0.01) and a 21.6% increase in ankle joint contribution (P = 0.016) to the total support moment compared to the uninvolved limb in the single-leg stop jump task. INTERPRETATION Compensation for the involved knee is likely due to altered biomechanics that redistributes load to the uninvolved knee or to adjacent joints of the same limb. A partial shift in joint contribution from the knee to the ankle during the single-leg stop jump task demonstrates a tendency to decrease load to the knee. Further studies are needed to investigate how these adaptations impact the prevalence of subsequent injury and poor joint health.
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Affiliation(s)
- Willa Ma
- Division of Biokinesiology and Physical Therapy, University of Southern California, 1540 Alcazar Street, Los Angeles, CA 90089, United States; Michael W. Kryzyzewski Human Performance Laboratory, Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States.
| | - Cindy Y Pan
- Michael W. Kryzyzewski Human Performance Laboratory, Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States
| | - Lee H Diehl
- Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States
| | - Jocelyn R Wittstein
- Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States
| | - Jonathan C Riboh
- Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States
| | - Alison P Toth
- Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States
| | - Annunziato Amendola
- Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States
| | - Mallory S Faherty
- Michael W. Kryzyzewski Human Performance Laboratory, Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States
| | - Carolyn Killelea
- Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States
| | - Daniel T Le
- Michael W. Kryzyzewski Human Performance Laboratory, Department of Orthopaedic Surgery, Duke University, 3475 Erwin Road, Durham, NC 27705, United States
| | - Timothy C Sell
- Atrium Health Musculoskeletal Institute, 2001 Vail Ave, Charlotte, NC 28207, United States
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Fleming JD, Ritzmann R, Centner C. Effect of an Anterior Cruciate Ligament Rupture on Knee Proprioception Within 2 Years After Conservative and Operative Treatment: A Systematic Review with Meta-Analysis. Sports Med 2021; 52:1091-1102. [PMID: 34854058 PMCID: PMC9023382 DOI: 10.1007/s40279-021-01600-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND The anterior cruciate ligament (ACL) plays a major role in knee proprioception and is thus responsible for maintaining knee joint stability and functionality. The available evidence suggests that ACL reconstruction diminishes somatosensory feedback and proprioceptive functioning, which are vital for adequate joint positioning and movement control. OBJECTIVE The aim of this systematic review and meta-analysis was to investigate the effect of an ACL rupture on knee proprioception after arthroscopic ACL repair surgery or conservative treatment. METHODS A systematic review with meta-analysis was conducted according to the Preferred Reporting Guidelines for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The literature search was performed in the following databases from inception to 10th October 2020: PubMed, Web of Science, SPORTDiscus, Cochrane Library and Scopus. Randomized and non-randomized studies that evaluated proprioception using the joint position sense (JPS) and threshold to detection of passive motion (TTDPM) techniques at 15°-30° knee flexion with an external healthy control group in a time period between 6 and 24 months post injury or operation were included in the analysis. RESULTS In total, 4857 studies were identified, from which 11 were included in the final quantitative analysis. The results demonstrated that proprioception after arthroscopic ACL repair surgery was significantly lower than in the healthy control group (JPS: standardized mean difference [SMD] 0.57, 95% confidence interval [CI] 0.27-0.87, p < 0.01, n = 6 studies; TTDPM: SMD 0.77, 95% CI 0.20-1.34, p < 0.01, n = 4 studies). There were no significant differences in proprioception between the conservative treatment group and the healthy control group (JPS: SMD 0.57, 95% CI - 0.69 to 1.84, p = 0.37, n = 4 studies; TTDPM: SMD 0.82, 95% CI - 0.02 to 1.65, p = 0.05, n = 2 studies), although measures for TTDPM were close to statistical significance. CONCLUSION The findings of the present systematic review and meta-analysis revealed that knee proprioception is persistently compromised 6-24 months following surgical treatment of ACL tears compared with healthy controls. The reduced kinesthetic awareness after ACL surgery is of high relevance for optimizing individual treatment plans in these patients. As the current literature is still scarce about the exact underlying mechanisms, further research is needed. TRIAL REGISTRATION The present systematic review was registered in PROSPERO (CRD42021198617).
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Affiliation(s)
- John Dick Fleming
- Department of Sport and Sport Science, University of Freiburg, Schwarzwaldstraße 175, 79117, Freiburg, Germany
| | | | - Christoph Centner
- Department of Sport and Sport Science, University of Freiburg, Schwarzwaldstraße 175, 79117, Freiburg, Germany. .,Praxisklinik Rennbahn, Muttenz, Switzerland.
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Kinetic measurement system use in individuals following anterior cruciate ligament reconstruction: a scoping review of methodological approaches. J Exp Orthop 2021; 8:81. [PMID: 34568996 PMCID: PMC8473525 DOI: 10.1186/s40634-021-00397-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/27/2021] [Indexed: 12/31/2022] Open
Abstract
Purpose Our primary objectives were to (1) describe current approaches for kinetic measurements in individuals following anterior cruciate ligament reconstruction (ACLR) and (2) suggest considerations for methodological reporting. Secondarily, we explored the relationship between kinetic measurement system findings and patient-reported outcome measures (PROMs). Methods We followed the PRISMA extension for scoping reviews and Arksey and O’Malley’s 6-stage framework. Seven electronic databases were systematically searched from inception to June 2020. Original research papers reporting parameters measured by kinetic measurement systems in individuals at least 6-months post primary ACLR were included. Results In 158 included studies, 7 kinetic measurement systems (force plates, balance platforms, pressure mats, force-measuring treadmills, Wii balance boards, contact mats connected to jump systems, and single-sensor insoles) were identified 4 main movement categories (landing/jumping, standing balance, gait, and other functional tasks). Substantial heterogeneity was noted in the methods used and outcomes assessed; this review highlighted common methodological reporting gaps for essential items related to movement tasks, kinetic system features, justification and operationalization of selected outcome parameters, participant preparation, and testing protocol details. Accordingly, we suggest considerations for methodological reporting in future research. Only 6 studies included PROMs with inconsistency in the reported parameters and/or PROMs. Conclusion Clear and accurate reporting is vital to facilitate cross-study comparisons and improve the clinical application of kinetic measurement systems after ACLR. Based on the current evidence, we suggest methodological considerations to guide reporting in future research. Future studies are needed to examine potential correlations between kinetic parameters and PROMs. Supplementary Information The online version contains supplementary material available at 10.1186/s40634-021-00397-0.
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Markström JL, Grinberg A, Häger CK. Fear of Reinjury Following Anterior Cruciate Ligament Reconstruction Is Manifested in Muscle Activation Patterns of Single-Leg Side-Hop Landings. Phys Ther 2021; 102:6373317. [PMID: 34554253 PMCID: PMC8860189 DOI: 10.1093/ptj/pzab218] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 04/19/2021] [Accepted: 05/30/2021] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The purpose of this study was to determine whether fear of re-injury is manifested in joint kinematics and muscle activation patterns during landings of a standardized rebound side-hop (SRSH), or in patient-reported outcome measures (PROMs), among individuals with anterior cruciate ligament reconstruction (ACLR). METHODS In this cross-sectional observational study, 38 individuals within 2 years post-ACLR were grouped into HIGH-FEAR (n = 21, median 11.2 months post-surgery) or LOW-FEAR (n = 17, median 10.1 months post-surgery) based on a discriminating question (Q9; Tampa Scale of Kinesiophobia-17). These individuals and 39 asymptomatic controls performed the SRSH. Three-dimensional motion recordings were used to calculate trunk, hip, and knee joint angles at initial contact and range of respective joint motion during landing. Surface electromyography registered mean amplitudes and co-contraction indexes for thigh muscles during pre-activation (50 ms) and landing phases. PROMs of knee function, knee health, and physical activity were also analyzed. RESULTS The HIGH-FEAR and LOW-FEAR classification was corroborated by distinct Tampa Scale of Kinesiophobia-17 total and subscale scores and revealed distinguishable muscle activation patterns. HIGH-FEAR demonstrated higher biceps femoris electromyography amplitude and higher anterior-posterior co-contraction index during landing than both LOW-FEAR and controls. However, there were no fear-related differences for kinematics or PROMs. Instead, both ACLR subgroups showed different kinematics at initial contact to controls; HIGH-FEAR with more trunk, hip, and knee flexion, and LOW-FEAR with more hip and knee flexion. CONCLUSION Individuals with ACLR who had high fear of re-injury seem to have adopted a protective strategy with higher muscular activation patterns, presumably to stabilize the knee joint, compared with individuals with low fear of re-injury and controls. SRSH landing kinematics or knee-related PROMs may not be as sensitive to fear of re-injury. IMPACT Fear of reinjury following anterior cruciate ligament injury should be evaluated as an independent psychological outcome throughout rehabilitation after ACLR for improved return to sport transition. LAY SUMMARY If you have an anterior cruciate ligament injury treated with reconstructive surgery, you might have a high fear of reinjury, and that can change how you activate the muscles around your knee. Your physical therapist can do a simple screening test in addition to functional tests to help reduce your fear and improve your treatment outcomes.
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Affiliation(s)
| | - Adam Grinberg
- Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, Umeå, Sweden
| | - Charlotte K Häger
- Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, Umeå, Sweden
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Ohji S, Aizawa J, Hirohata K, Ohmi T, Mitomo S, Jinno T, Koga H, Yagishita K. Characteristics of landing impact in athletes who have not returned to sports at the pre-injury competition level after anterior cruciate ligament reconstruction. ASIA-PACIFIC JOURNAL OF SPORT MEDICINE ARTHROSCOPY REHABILITATION AND TECHNOLOGY 2021; 25:47-52. [PMID: 34141596 PMCID: PMC8187959 DOI: 10.1016/j.asmart.2021.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/23/2021] [Accepted: 05/10/2021] [Indexed: 11/24/2022]
Abstract
Background Most patients with anterior cruciate ligament (ACL) injury undergo ACL reconstruction (ACLR) with the expectation of being able to return to sport (RTS) at the same level of the competition as before the injury. The magnitude and asymmetry of landing impact are important post-ACLR functional variables related to increased ACL strain and poor athletic performance. However, the association between the RTS status and landing impact in post-ACLR patients is unknown. Objective To investigate the association between RTS status and landing impact during single-leg landing in post-ACLR patients. Methods Forty-four patients after primary, unilateral ACLR participated in this study. They had already participated in sports post-ACLR. Questionnaires were used to assess whether the participants achieved the same competitive level of RTS as before the injury. The magnitude and symmetry of the peak vertical ground reaction force (pVGRF) were collected and analysed during single-leg jump landings. Additionally, knee functions (range of motion, laxity, effusion, strength, and single-leg hop distance) were measured. Results A total of 28 (64%) patients reported RTS at their pre-injury competition levels. The no-RTS group had a lower pVGRF magnitude on the operated side than the yes-RTS group (P = .019). The no-RTS group had a higher rate of pVGRF asymmetry (50%) than the yes-RTS group (18%) (P = .040). Logistic regression analysis revealed that pVGRF magnitude and asymmetry were significantly associated with the RTS status. Logistic regression analysis adjusted for knee function revealed that the pVGRF magnitude was significantly associated with the RTS status. Conclusion In patients who are unable to RTS at their pre-injury competition level after ACLR, the pVGRF is lower and more likely to be asymmetrical than in those able to RTS at their pre-injury competition level.
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Affiliation(s)
- Shunsuke Ohji
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Junya Aizawa
- Department of Physical Therapy, Juntendo University, 3-2-12 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kenji Hirohata
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Takehiro Ohmi
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Sho Mitomo
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Tetsuya Jinno
- Department of Orthopaedic Surgery, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minami-Koshigaya, Koshigaya, Saitama, 343-8555, Japan
| | - Hideyuki Koga
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Kazuyoshi Yagishita
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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Sherman DA, Glaviano NR, Norte GE. Hamstrings Neuromuscular Function After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis. Sports Med 2021; 51:1751-1769. [PMID: 33609272 DOI: 10.1007/s40279-021-01433-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Hamstrings neuromuscular function is a crucial component of functional movement, and changes after anterior cruciate ligament (ACL) injury contribute to risk factors for secondary injury and long-term sequelae. To effectively treat muscular impairments, an accurate understanding of hamstrings neuromuscular function in patients with ACL reconstruction (ACLR) is needed. OBJECTIVE A systematic review and meta-analysis were undertaken to describe and quantify hamstrings neuromuscular function in individuals with ACLR compared to controls. METHODS We searched PubMed, Web of Science, SPORTDiscus, CINAHL, and EBSCOhost databases in October of 2020 for studies evaluating the difference between hamstrings electromyography (EMG) between individuals with ACLR and controls. Two independent reviewers assessed each paper for inclusion and quality. Means and standard deviations were extracted from each included study to allow random-effect size (ES) meta-analysis calculations for comparison of results. RESULTS Thirty-four studies were included for final review. From these, 5 categories of neuromuscular outcomes were identified, and studies were grouped accordingly: (1) muscle activation levels (EMG amplitude), (2) co-activation, (3) onset timing, (4) electromechanical delay, and (5) time-to-peak activity. Moderate to strong evidence indicates that individuals with ACLR demonstrate higher hamstrings EMG amplitude (normalized to % maximum voluntary isometric contraction) and hamstrings-to-quadriceps co-activation during gait and stair ambulation compared to controls. In addition, there was moderate evidence of longer electromechanical delay during knee flexion and greater hamstrings-to-quadriceps co-activation during knee extension compared to controls. CONCLUSIONS Greater hamstrings EMG amplitude and co-activation during gait and ambulation tasks and longer electromechanical delay of the hamstrings in individuals with ACLR align with clinical impairments following ACLR and have implications for re-injury risk and long-term joint health, thus warranting attention in rehabilitation.
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Affiliation(s)
- David A Sherman
- School of Exercise and Rehabilitation Sciences, College of Health and Human Services, The University of Toledo, 2801 W. Bancroft St., HH 2505E, Mail Stop 119, Toledo, OH, 43606, USA.
| | - Neal R Glaviano
- Department of Kinesiology, College of Agriculture, Health and Natural Resources, University of Connecticut, Storrs, CT, USA
| | - Grant E Norte
- School of Exercise and Rehabilitation Sciences, College of Health and Human Services, The University of Toledo, 2801 W. Bancroft St., HH 2505E, Mail Stop 119, Toledo, OH, 43606, USA
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He X, Huang WY, Leong HT, Qiu JH, Ma CC, Fu SC, Ong MTY, Yung PSH. Decreased passive muscle stiffness of vastus medialis is associated with poorer quadriceps strength and knee function after anterior cruciate ligament reconstruction. Clin Biomech (Bristol, Avon) 2021; 82:105289. [PMID: 33581470 DOI: 10.1016/j.clinbiomech.2021.105289] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/24/2020] [Accepted: 01/28/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Muscle deficits of the quadriceps and hamstrings are common after anterior cruciate ligament reconstruction, and increase the risk of knee reinjury. Muscle stiffness is an important factor for dynamic joint stability. However, the changes in quadriceps and hamstring muscle stiffness and its influence after anterior cruciate ligament reconstruction remain unclear. METHOD Twenty-five male subjects with anterior cruciate ligament reconstruction and twenty-one matched healthy subjects participated in this study. The passive muscle stiffness of the quadriceps and hamstrings was assessed by shear modulus using ultrasound shear wave elastography. The isokinetic muscle strengths of the quadriceps and hamstrings were tested. Knee function was evaluated by the International Knee Documentation Committee and Lysholm score. Muscle stiffness was compared between limbs via non-parametric tests. Correlation analysis was used to detect the relationship between muscle stiffness, isokinetic muscle strength and knee functional scores. FINDINGS The involved limb exhibited significantly decreased shear modulus in the vastus medialis compared to the dominant limbs(z = -3.585;P = 0.001;ES = 1.13) and non-dominant limbs(z = -3.551;P = 0.002;ES = 1.24) of healthy controls. The shear modulus of ST was also significantly lower in the involved limb when compared with the contralateral limbs(z = -3.996;P < 0.001;ES = 1.33), dominant limbs(z = -4.477;P < 0.001;ES = 1.65) and non-dominant limbs(z = -4.234;P = 0.001;ES = 1.43) of healthy controls. The shear modulus of the vastus medialis was associated with quadriceps peak torque at 60°/s(r = 0.470; p < 0.001) and knee functional score(r = 0.459; p = 0.021). INTERPRETATION The passive muscle stiffness of the vastus medialis decreased after anterior cruciate ligament reconstruction, which is associated with poorer quadriceps strength and knee function. The effect of modulation of muscle stiffness on improving knee function warrants future investigation.
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Affiliation(s)
- Xin He
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Wan Yun Huang
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Hio Teng Leong
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Ji Hong Qiu
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Chun Cheong Ma
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Sai-Chuen Fu
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Michael Tim-Yun Ong
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Patrick Shu-Hang Yung
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong.
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Tayfur B, Charuphongsa C, Morrissey D, Miller SC. Neuromuscular Function of the Knee Joint Following Knee Injuries: Does It Ever Get Back to Normal? A Systematic Review with Meta-Analyses. Sports Med 2021; 51:321-338. [PMID: 33247378 PMCID: PMC7846527 DOI: 10.1007/s40279-020-01386-6] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Neuromuscular deficits are common following knee injuries and may contribute to early-onset post-traumatic osteoarthritis, likely mediated through quadriceps dysfunction. OBJECTIVE To identify how peri-articular neuromuscular function changes over time after knee injury and surgery. DESIGN Systematic review with meta-analyses. DATA SOURCES PubMed, Web of Science, Embase, Scopus, CENTRAL (Trials). ELIGIBILITY CRITERIA FOR SELECTING STUDIES Moderate and high-quality studies comparing neuromuscular function of muscles crossing the knee joint between a knee-injured population (ligamentous, meniscal, osteochondral lesions) and healthy controls. Outcomes included normalized isokinetic strength, muscle size, voluntary activation, cortical and spinal-reflex excitability, and other torque related outcomes. RESULTS A total of 46 studies of anterior cruciate ligament (ACL) and five of meniscal injury were included. For ACL injury, strength and voluntary activation deficits were evident (moderate to strong evidence). Cortical excitability was not affected at < 6 months (moderate evidence) but decreased at 24+ months (moderate evidence). Spinal-reflex excitability did not change at < 6 months (moderate evidence) but increased at 24+ months (strong evidence). We also found deficits in torque variability, rate of torque development, and electromechanical delay (very limited to moderate evidence). For meniscus injury, strength deficits were evident only in the short-term. No studies reported gastrocnemius, soleus or popliteus muscle outcomes for either injury. No studies were found for other ligamentous or chondral injuries. CONCLUSIONS Neuromuscular deficits persist for years post-injury/surgery, though the majority of evidence is from ACL injured populations. Muscle strength deficits are accompanied by neural alterations and changes in control and timing of muscle force, but more studies are needed to fill the evidence gaps we have identified. Better characterisation and therapeutic strategies addressing these deficits could improve rehabilitation outcomes, and potentially prevent PTOA. TRIAL REGISTRATION NUMBER PROSPERO CRD42019141850.
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Affiliation(s)
- Beyza Tayfur
- Sports and Exercise Medicine, Queen Mary University of London, London, UK.
| | | | - Dylan Morrissey
- Sports and Exercise Medicine, Queen Mary University of London, London, UK
- Physiotherapy Department, Barts Health NHS Trust, London, E1 4DG, UK
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Altered Neuromuscular Activity of the Lower-Extremities During Landing Tasks in Patients With Anterior Cruciate Ligament Reconstruction: A Systematic Review of Electromyographic Studies. J Sport Rehabil 2020; 29:1194-1203. [PMID: 32357316 DOI: 10.1123/jsr.2019-0393] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 12/27/2019] [Accepted: 02/17/2020] [Indexed: 11/18/2022]
Abstract
CONTEXT Altered lower-limb biomechanics have been observed during landing task in patients with anterior cruciate ligament reconstruction (ACLR), which increases the risk of secondary anterior cruciate ligament injury. However, the alteration in neuromuscular activity of the lower-extremity during landing task is not clear. OBJECTIVE To compare the muscle activity pattern assessed by electromyography between the involved limb of patients with ACLR and the contralateral limb or control limb of matched healthy subjects during landing task. EVIDENCE ACQUISITION Database of PubMed, Ovid, Scopus, and Web of Science from the inception of the databases until July 2019, using a combination of keywords and their variations: (anterior cruciate ligament OR ACL) AND (electromyography OR EMG) AND (landing OR land). Studies that assessed lower-extremity muscle activity patterns during landing task in patients with ACLR and compared them either with the contralateral side or healthy controls were included. EVIDENCE SYNTHESIS Of the 21 studies, 16 studies reported altered muscle activity pattern during landing tasks when compared with either the healthy controls or the contralateral side. For the specific muscle activity patterns, the majority of the studies showed no significant difference in reactive muscle activity, and comparisons across studies revealed a possible trend toward the early onset of quadriceps and hamstring activity and increased cocontraction of the involved limb. There are inconsistent findings regarding the alteration in muscle timing and preparatory muscle activity. CONCLUSIONS Patients with ACLR displayed an altered muscle activity pattern during landing tasks, even though they were considered to be capable for sport return. Nevertheless, a firm conclusion could not be drawn due to great heterogeneity in the subject selection and study methods.
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Mantashloo Z, Letafatkar A, Moradi M. Vertical ground reaction force and knee muscle activation asymmetries in patients with ACL reconstruction compared to healthy individuals. Knee Surg Sports Traumatol Arthrosc 2020; 28:2009-2014. [PMID: 31598766 DOI: 10.1007/s00167-019-05743-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/30/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Gait analysis is an important index in the clinical treatment of people with anterior cruciate ligament (ACL) injury. Following unilateral ACL reconstruction (ACLR), the knee kinetic asymmetries are likely to affect the gait cycle. Therefore, the aim of this study was to examine the symmetries of vertical ground reaction force (vGRF) and select the knee muscle activity in gait cycles in participants with and without unilateral ACLR. METHODS In this cross-sectional study, vGRF and muscle activity data in difference gait cycles were collected from 56 male subjects (28 with unilateral ACLR and 28 healthy subjects) using force plate and electromyography (EMG), respectively. MATLAB software was used for data analysis and independent t test was employed to compare the two groups. RESULTS No significant difference was seen between the two groups in the variable of first peak force symmetry (n.s). However, there was a significant difference in the second-peak force symmetry index between the two groups (p ≤ 0.001). Regarding muscle activity symmetry in the braking phase of gait, a significant difference was observed in rectus femoris between the two groups (p ≤ 0.001), while no difference was seen in medial gastrocnemius and biceps femoris activity (n.s). In the propulsive phase of gait, there was a significant difference in medial gastrocnemius and biceps femoris muscles activity between the two groups (p ≤ 0.001), while no difference was found in rectus femoris muscle activity (n.s). CONCLUSIONS The results revealed that unilateral ACLR creates asymmetry in vGRF and muscle activities in different phases of the gait cycle. So, more attention should be paid to this problem in clinical settings, and also to the use of therapeutic interventions to reduce the amount of kinetic asymmetries. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Zahed Mantashloo
- Department of Biomechanics and Sport Injury, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran
| | - Amir Letafatkar
- Department of Biomechanics and Sport Injury, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran.
| | - Mohsen Moradi
- Department of Biomechanics and Sport Injury, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran
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Chen AJ, Tatarski RL, Perry J, Quatman CE, Hewett TE, Di Stasi S. Single-leg hop mechanics are correlated with self-reported knee function early after anterior cruciate ligament reconstruction. Clin Biomech (Bristol, Avon) 2020; 73:35-45. [PMID: 31931397 DOI: 10.1016/j.clinbiomech.2019.12.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 08/23/2019] [Accepted: 12/22/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Biomechanical changes that persist after anterior cruciate ligament (ACL) injury may impact short- and long-term outcomes. Understanding the relationship of biomechanics during a dynamic task and patient reported function can better identify patients who are most vulnerable to sub-optimal long-term outcomes, such as osteoarthritis (OA). The purpose of this study was to determine whether hip and knee biomechanics during single-leg hop landing were significantly correlated with the Knee injury and Osteoarthritis Outcome Score (KOOS), and whether symptomatic knees displayed altered biomechanics relative to asymptomatic knees. METHODS Hip and knee biomechanics during the landing phase of a single-leg hop of thirty subjects with ACLR were analyzed. Subjects were also classified as symptomatic or asymptomatic based on their KOOS results. Correlation analyses and group comparisons between symptomatic and asymptomatic subjects were conducted. FINDINGS KOOS Symptoms, Pain, and Sport subscales were significantly correlated with frontal and sagittal plane hip and knee biomechanics. Furthermore, those with symptomatic knees demonstrated greater hip and knee flexion angles, and greater hip flexion moments. INTERPRETATION These results indicate that biomechanics associated with ACLR during a single-leg hop are correlated with worse KOOS outcomes. However, these correlations may be due to symptoms of the recovery from ACLR rather than those of OA. The results of this study may help to identify rehabilitation opportunities for patients at risk for worse long-term outcomes after ACLR.
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Affiliation(s)
- Albert J Chen
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Biomedical Engineering, The Ohio State University, Columbus, OH, United States.
| | - Rachel L Tatarski
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States; School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, United States
| | - Jennifer Perry
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Carmen E Quatman
- Department of Orthopaedics, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Timothy E Hewett
- Orthopedic Biomechanics Laboratories and Sports Medicine Research Center, Mayo Clinic, Rochester, MN, United States
| | - Stephanie Di Stasi
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Division of Physical Therapy, The Ohio State University, Columbus, OH, United States
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Dashti Rostami K, Alizadeh M, Minoonejad H, Thomas A, Yazdi H. Relationship between electromyographic activity of knee joint muscles with vertical and posterior ground reaction forces in anterior cruciate ligament reconstructed patients during a single leg vertical drop landing task. Res Sports Med 2019; 28:1-14. [PMID: 31352787 DOI: 10.1080/15438627.2019.1647204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The objective of the present study is to examine the relation between activity patterns of knee joint muscles with vertical and posterior ground reaction forces (VGRF and PGRF, respectively) in patients after anterior cruciate ligament reconstruction (ACLR). Twenty males post-ACLR participated in this cross-sectional study. The association between muscle activity with VGRF and PGRF was assessed during a single leg vertical drop-landing task. There were strong negative associations between preparatory VL, VM and MG activity and PGRF (P< 0.05). Strong positive associations were found between reactive VM and LH activity with PGRF (P< 0.05). Preparatory co-activation of VM: MH had significant negative associations with VGRF (P< 0.05) and reactive co-activation of VL:LH had a significant positive relation with PGRF(P< 0.05). Greater preparatory activity and co-activation of knee muscles were associated with lower peak PGRF and VGRF, whereas greater reactive activity and co-activation of knee muscles was associated with greater peak PGRF and VGRF. According to our findings, both activity and co-activation of knee muscles during the preparatory phase were associated with reduced PGRF and VGRF, respectively in ACLR patients; thus, incorporating exercises in order to increase preparatory activity and co-activation of knee joint muscles into rehabilitation programs in ACLR patients seems necessary.
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Affiliation(s)
- Komeil Dashti Rostami
- Faculty of Physical education and sports sciences, Department of Sport Medicine and Health, University of Tehran, Tehran, Iran
| | - Mohammadhossein Alizadeh
- Faculty of Physical education and sports sciences, Department of Sport Medicine and Health, University of Tehran, Tehran, Iran
| | - Hooman Minoonejad
- Faculty of Physical education and sports sciences, Department of Sport Medicine and Health, University of Tehran, Tehran, Iran
| | - Abbey Thomas
- Department of Kinesiology, University of North Carolina at Charlotte, Charlotte, USA
| | - Hamidreza Yazdi
- Neuromusculoskeletal research center, Iran University of Medical Sciences, Tehran, Iran
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Fryer C, Ithurburn MP, McNally MP, Thomas S, Paterno MV, Schmitt LC. The relationship between frontal plane trunk control during landing and lower extremity muscle strength in young athletes after anterior cruciate ligament reconstruction. Clin Biomech (Bristol, Avon) 2019; 62:58-65. [PMID: 30690410 PMCID: PMC6457265 DOI: 10.1016/j.clinbiomech.2018.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 10/18/2018] [Accepted: 11/28/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Lower extremity landing asymmetries are common and associated with strength deficits after anterior cruciate ligament reconstruction. However, less is known regarding trunk control during landing. This study's hypotheses were that frontal plane trunk excursion during single-leg landing would be greater in young athletes after anterior cruciate ligament reconstruction compared to controls and would be associated with strength deficits. METHODS Participants included 130 young athletes recently cleared for return-to-sport following anterior cruciate ligament reconstruction and 56 uninjured young athletes. Frontal plane trunk excursion was quantified using three-dimensional motion analysis during a single-leg landing task. Quadriceps and hip abduction strength were measured using an isokinetic dynamometer. Frontal plane trunk excursion was compared between the anterior cruciate ligament reconstruction and control groups and among quadriceps strength subgroups using independent t-tests and one-way analysis of variance. Linear regression examined the association between frontal plane trunk excursion and strength measures in the anterior cruciate ligament reconstruction group. FINDINGS The anterior cruciate ligament reconstruction group demonstrated greater frontal plane trunk excursion compared to controls. The low-quadriceps group demonstrated greater frontal plane trunk excursion compared to both the high-quadriceps and control groups. Additionally, the high-quadriceps group demonstrated greater frontal plane trunk excursion compared to controls. In the anterior cruciate ligament reconstruction group, lower quadriceps and hip abduction strength were weakly associated with greater frontal plane trunk excursion. INTERPRETATION Young athletes at time of return-to-sport after anterior cruciate ligament reconstruction demonstrated increased frontal plane trunk excursion during single-leg landing. Additionally, increased frontal plane trunk excursion was weakly associated with strength deficits.
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Affiliation(s)
- Conor Fryer
- College of Arts and Sciences, The Ohio State University, Columbus, OH, USA
| | - Matthew P Ithurburn
- Department of Physical Therapy, Center for Exercise Medicine, School of Health Professions, The University of Alabama at Birmingham, Birmingham, AL, USA; School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, USA.
| | - Michael P McNally
- School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, USA; Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
| | - Staci Thomas
- Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
| | - Mark V Paterno
- Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Division of Occupational Therapy and Physical Therapy, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, USA.
| | - Laura C Schmitt
- School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, USA; Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Division of Physical Therapy, School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, USA.
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Hohmann E, Tetsworth K, Glatt V. The hamstring/quadriceps ratio is an indicator of function in ACL-deficient, but not in ACL-reconstructed knees. Arch Orthop Trauma Surg 2019; 139:91-98. [PMID: 30062456 DOI: 10.1007/s00402-018-3000-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Indexed: 12/11/2022]
Abstract
PURPOSE The purpose of this study was to investigate the isokinetic, eccentric and isometric hamstring/quadriceps (HQ) ratios in patients before and after ACL reconstruction (ACLR) using bone-patellar tendon grafts and to establish the relationships between HQ ratio and knee function. METHODS Forty-four patients (mean age of 26.6 years) underwent isokinetic testing of quadriceps and hamstring muscles before and after ACLR and HQ ratios were calculated. Lysholm, IKDC and Cincinnati Scores were used to assess function. Isokinetic concentric and eccentric peak torque (Nm/kg) was measured at three different speeds: 60, 120, and 180°/s. Isometric strength was tested at 30° and 60° of knee flexion. RESULTS For the isometric tests, the HQ ratio between the involved and non-involved limb was not different for the ACLD knee (p = 0.28) at 30° knee flexion, but significant at the 60° flexion angle (p = 0.02) and for the ACLR knees at 30° and 60° (p = 0.02). For the isokinetic tests, the ratio between involved and non-involved limb was significant for ACL-deficient knees at both 60 (p = 0.039) and 120°/s (p = 0.05). There were significant differences between limbs for all speeds in ACLR knees (p = 0.0003-0.01). For the eccentric tests, the HQ ratio between the involved and non-involved limbs was not significant for both the ACLD (p = 0.19) and ACLR knees (p = 0.29) at the speed of 60°/s. At 120 and 180°/s, there were significant differences between limbs for both the ACLD (p = 0.02) and ACLR knees (p = 0.003). Linear regression did not reveal significant relationships between Cincinnati, Lysholm, and IKDC scores and HQ ratios in the ACLD (R2 = 0.35, p = 0.58; R2 = 0.34, p = 0.63; R2 = 0.38, p = 0.49). In contrast, there were significant correlations between the Lysholm and IKDC scores and HQ ratios in the ACLR knees (R2 = 0.84, p = 0.002; R2 = 0.86, p = 0.001). CONCLUSIONS The findings of this study suggest that the HQ ratio in ACLD patients was not a predictor, but an indicator of patient-perceived knee function following ACLR. LEVEL OF EVIDENCE Level IV, case series.
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Affiliation(s)
- Erik Hohmann
- Medical School, University of Queensland, Brisbane, Australia. .,Medical School, Faculty of Health, University of Pretoria, Pretoria, South Africa. .,Valiant Clinic/Houston Methodist Group, PO Box 414296, Dubai, United Arab Emirates.
| | - Kevin Tetsworth
- Department of Orthopaedic Surgery, Royal Brisbane Hospital, Herston, Australia.,Department of Surgery, School of Medicine, University of Queensland, Brisbane, Australia
| | - Vaida Glatt
- University of Texas Health Science Center, San Antonio, TX, USA
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Greater fear of reinjury is related to stiffened jump-landing biomechanics and muscle activation in women after ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 2018; 26:3682-3689. [PMID: 29700560 DOI: 10.1007/s00167-018-4950-2] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 04/16/2018] [Indexed: 12/16/2022]
Abstract
PURPOSE Fear of reinjury is an important factor in determining who returns to sport following anterior cruciate ligament reconstruction (ACLR). Evidence from other musculoskeletal injuries indicates fear of reinjury may be related to stiffened movement patterns observed in individuals following ACLR. The relationship between fear of reinjury and performance on dynamic tasks, however, has not been investigated. Therefore, the purpose of this study was to investigate the relationship between fear of reinjury and jump-landing biomechanics. METHODS Thirty-six females (height = 168.7 ± 6.5 cm, body mass = 67.2 ± 10.0 kg, age = 18.9 ± 1.5 years) with a history of ACLR (time from surgery = 26.1 ± 13.3 months) participated in the study. Each participant performed five trials of a standard jump-landing task. 3D motion capture and surface electromyography was used to record peak kinematics and lower extremity muscle activation on the injured limb during the jump landings. Spearman's rank correlations established the relationship between TSK-11 scores and each biomechanical variable of interest. RESULTS There was a significant, negative relationship between fear of reinjury (TSK-11: 19.9 ± 4.5) and knee (p = 0.006), hip (p = 0.003), and trunk flexion (p = 0.013). There was also a significant, positive relationship between hip adduction (p = 0.007), and gluteus maximus preparatory activation (p = 0.001). CONCLUSIONS The results of this study indicate that higher fear of reinjury is associated with stiffened movement patterns that are associated with increased risk of a second ACL injury. Similar movement patterns have been observed in patients with low back pain. Clinicians should evaluate psychological and emotional consequences of injury in addition to the physical consequences as they appear to be related. LEVEL OF EVIDENCE III.
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26
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Lower Limb Biomechanics During Single-Leg Landings Following Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis. Sports Med 2018; 48:2103-2126. [PMID: 29949109 DOI: 10.1007/s40279-018-0942-0] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
BACKGROUND Anterior cruciate ligament reconstruction (ACLR) may not restore lower limb biomechanics during single-limb landings. OBJECTIVES Our objective was to identify and evaluate differences in lower limb biomechanics during high-demand single-limb landings between the ACLR limb and the contralateral limb and healthy control participants. METHODS A systematic review of the literature was conducted using six electronic databases searched until April 2017 for published peer-reviewed studies that investigated lower limb biomechanics on the ACLR limb compared with either the contralateral limb or those of control participants. Meta-analysis with standardized mean differences (SMD) were performed for peak angles and moments (hip, knee and ankle joints) in the sagittal plane during single-limb landing tasks. RESULTS A total of 35 studies met inclusion criteria. Four different single-leg landing tasks were identified: forward hop (n = 24 studies), landing from a height (n = 9 studies), vertical hop (n = 4 studies), and diagonal leap (n = 1 study). A reduced peak knee flexion angle was found in the ACLR limb compared with the contralateral limb during a forward hop landing task (SMD - 0.39; 95% confidence interval [CI] - 0.59 to - 0.18) and compared with a control group (SMD between - 1.01 and - 0.45) for all three reported single-leg landing tasks: forward hop, landing from a height, and diagonal leap. Similarly, a reduced peak knee internal extensor moment was found in the ACLR limb compared with the contralateral limb for all three reported landing tasks: forward hop, landing from a height, vertical hop (SMD between - 1.43 and - 0.53), and in two of three landing tasks when compared with a control group (SMD between - 1.2 and - 0.52). No significant differences in peak flexion (hip and ankle) angle or peak (hip and ankle) internal extensor moment were found in the ACLR limb compared with both the contralateral limb and a control group. CONCLUSIONS Participants performed single-limb landings on the ACLR limb with reductions in peak sagittal knee kinematics as well as peak joint moments compared with both the contralateral limb and a control group. Stiffer single-leg landings potentially expose the knee joint to higher forces, which may increase risk of injury. Clinical testing after ACLR surgery should explore movement quality as well as performance of functional tasks. LEVEL OF EVIDENCE Case-control, IV.
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Pincheira PA, Silvestre R, Armijo-Olivo S, Guzman-Venegas R. Ankle perturbation generates bilateral alteration of knee muscle onset times after unilateral anterior cruciate ligament reconstruction. PeerJ 2018; 6:e5310. [PMID: 30083454 PMCID: PMC6074771 DOI: 10.7717/peerj.5310] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 07/03/2018] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The aim of this study was to compare muscle activation onset times of knee muscles between the involved and uninvolved knee of patients with unilateral anterior cruciate ligament reconstruction (ACLR), and the uninjured knees of healthy subjects after a controlled perturbation at the ankle level. METHODS Fifty male amateur soccer players, 25 with unilateral ACLR using semitendinosus-gracilis graft (age = 28.36 ± 7.87 years; time after surgery = 9 ± 3 months) and 25 uninjured control subjects (age = 24.16 ± 2.67 years) participated in the study. Two destabilizing platforms (one for each limb) generated a controlled perturbation at the ankle of each participant (30°of inversion, 10°plantarflexion simultaneously) in a weight bearing condition. The muscle activation onset times of semitendinosus (ST) and vastus medialis (VM) was detected through an electromyographic (EMG) analysis to assess the neuromuscular function of knee muscles. RESULTS Subjects with ACLR had significant delays in EMG onset in the involved (VM = 99.9 ± 30 ms; ST = 101.7 ± 28 ms) and uninvolved knee (VM = 100.4 ± 26 ms; ST = 104.7 ± 28 ms) when compared with the healthy subjects (VM = 69.1 ± 9 ms; ST = 74.6 ± 9 ms). However, no difference was found between involved and uninvolved knee of the ACLR group. DISCUSSION The results show a bilateral alteration of knee muscles in EMG onset after a unilateral ACLR, responses that can be elicited with an ankle perturbation. This suggests an alteration in the central processing of proprioceptive information and/or central nervous system re-organization that may affect neuromuscular control of knee muscles in the involved and uninvolved lower limbs.
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Affiliation(s)
- Patricio A. Pincheira
- Escuela de Kinesiología, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
- Centre for Sensorimotor Performance, School of Human Movement and Nutrition Sciences, University of Queensland, Brisbane, Australia
| | - Rony Silvestre
- Unidad de Biomecánica Deportiva, Clinica Meds, Santiago, Chile
| | - Susan Armijo-Olivo
- Department of Physical Therapy, Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Canada
| | - Rodrigo Guzman-Venegas
- Laboratorio Integrativo de Biomecánica y Fisiología del Esfuerzo (LIBFE), Escuela de Kinesiología, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
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Lepley AS, Kuenze CM. Hip and Knee Kinematics and Kinetics During Landing Tasks After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis. J Athl Train 2018; 53:144-159. [PMID: 29350551 DOI: 10.4085/1062-6050-334-16] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To evaluate the current evidence concerning kinematic and kinetic strategies adopted during dynamic landing tasks by patients with anterior cruciate ligament reconstruction (ACLR). DATA SOURCES PubMed, Web of Science. STUDY SELECTION Original research articles that evaluated kinematics or kinetics (or both) during a landing task in those with a history of ACLR were included. DATA EXTRACTION Methodologic quality was assessed using the modified Downs and Black checklist. Means and standard deviations for knee or hip (or both) kinematics and kinetics were used to calculate Cohen d effect sizes and corresponding 95% confidence intervals between the injured limb of ACLR participants and contralateral or healthy matched limbs. Data were further stratified by landing tasks, either double- or single-limb landing. A random-effects-model meta-analysis was used to calculate pooled effect sizes and 95% confidence intervals. DATA SYNTHESIS The involved limbs of ACLR patients demonstrated clinically and significantly lower knee-extension moments during double-legged landing compared with healthy contralateral limbs and healthy control limbs (Cohen d range = -0.81 to -1.23) and decreased vertical ground reaction forces when compared with healthy controls, regardless of task (Cohen d range = -0.39 to -1.75). CONCLUSIONS During single- and double-legged landing tasks, individuals with ACLR demonstrated meaningful reductions in injured-limb knee-extension moments and vertical ground reaction forces. These findings indicate potential unloading of the injured limb after ACLR, which may have significant implications for secondary ACL injury and long-term joint health.
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Complications following harvesting of patellar tendon or hamstring tendon grafts for anterior cruciate ligament reconstruction: Systematic review of literature. Orthop Traumatol Surg Res 2017; 103:S245-S248. [PMID: 28888527 DOI: 10.1016/j.otsr.2017.09.002] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 08/23/2017] [Indexed: 02/02/2023]
Abstract
UNLABELLED Anterior cruciate ligament (ACL) reconstruction can be performed with an autograft, which is most often harvested from the patient's hamstring tendon (HT) or patellar tendon (PT). However, autograft harvesting leads to morbidity that is by no means insignificant. A systematic review of literature was performed to define the incidence of complications related to graft harvesting and the methods to prevent these complications. In March 2017, a systemic review of literature was performed using the keywords"harvesting", "harvest", "morbidity", "complication", "cruciate ligament". No time limit was applied. The studies had to be written in French or English with their abstract available online. This initial search based on the title and abstract identified 133 articles. Two independent observers analyzed each article entirely, including the references. In all, 36 articles were retained. The main complication of HT harvesting was sensory deficit because of damage to the infrapatellar branches of the saphenous nerve. This complication occurred in 39.7% to 88% of patients. This risk can be reduced by using a horizontal or oblique incision. The main complication following PT harvesting is anterior knee pain, reported in up to 46% of patients. There are substantial numbers of short-, medium- and long-term complications related to the harvesting of the two main ACL autografts. Effective means of prevention exist to reduce the risk of these complications. LEVEL OF EVIDENCE II Systematic review of literature.
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30
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Heebner NR, Rafferty DM, Wohleber MF, Simonson AJ, Lovalekar M, Reinert A, Sell TC. Landing Kinematics and Kinetics at the Knee During Different Landing Tasks. J Athl Train 2017; 52:1101-1108. [PMID: 29154692 DOI: 10.4085/1062-6050-52.11.25] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
CONTEXT Several tasks have been used to examine landing biomechanics for evaluation and rehabilitation, especially as related to anterior cruciate ligament injuries. However, comparing results among studies in which different tasks were used can be difficult, and it is unclear which task may be most appropriate. OBJECTIVE To compare lower extremity biomechanics across 5 commonly used landing tasks. DESIGN Descriptive laboratory study. SETTING University-operated US Air Force Special Operations Forces human performance research laboratory. PATIENTS OR OTHER PARTICIPANTS A total of 65 US Air Force Special Tactics Operators (age = 27.7 ± 5.0 years, height = 176.5 ± 5.7 cm, mass = 83.1 ± 9.1 kg). INTERVENTION(S) Kinematic and kinetic analysis of double- and single-legged drop landing, double- and single-legged stop jump, and forward jump to single-legged landing. MAIN OUTCOME MEASURE(S) Hip-, knee-, and ankle-joint kinematics; knee-joint forces and moments; and ground reaction forces (GRFs) were the dependent measures. We used repeated-measures analyses of variance or Friedman tests, as appropriate, to assess within-subject differences across tasks. RESULTS Peak vertical GRF and peak knee-flexion angle were different among all tasks ( P < .001). Single-legged landings generated higher vertical GRF (χ2 = 244.68, P < .001) and lower peak knee-flexion values ( F4,64 = 209.33, P < .001) except for forward jump to single-legged landing, which had the second highest peak vertical GRF and the lowest peak knee-flexion value. The single-legged drop landing generated the highest vertical (χ2 = 244.68, P < .001) and posterior (χ2 = 164.46, P < .001) GRFs. Peak knee-valgus moment was higher during the double-legged drop landing (χ2 = 239.63, P < .001) but similar for all others. CONCLUSIONS Different landing tasks elicited different biomechanical responses; no single task was best for assessing a wide range of biomechanical variables related to anterior cruciate ligament injuries. Therefore, depending on the goals of the study, using multiple assessment tasks should be considered.
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Affiliation(s)
- Nicholas R Heebner
- Sports Medicine Research Institute, College of Health Sciences, University of Kentucky, Lexington
| | | | | | | | - Mita Lovalekar
- Neuromuscular Research Laboratory, University of Pittsburgh, PA
| | | | - Timothy C Sell
- Michael W. Krzyzewski Human Performance Laboratory, James R. Urbaniak Sports Sciences Institute, Duke University, Durham, NC
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Fischer F, Blank C, Dünnwald T, Gföller P, Herbst E, Hoser C, Fink C. Isokinetic Extension Strength Is Associated With Single-Leg Vertical Jump Height. Orthop J Sports Med 2017; 5:2325967117736766. [PMID: 29147670 PMCID: PMC5672995 DOI: 10.1177/2325967117736766] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Background Isokinetic strength testing is an important tool in the evaluation of the physical capacities of athletes as well as for decision making regarding return to sports after anterior cruciate ligament (ACL) reconstruction in both athletes and the lay population. However, isokinetic testing is time consuming and requires special testing equipment. Hypothesis A single-jump test, regardless of leg dominance, may provide information regarding knee extension strength through the use of correlation analysis of jump height and peak torque of isokinetic muscle strength. Study Design Cross-sectional study; Level of evidence, 3. Methods A total of 169 patients who underwent ACL reconstruction were included in this study. Isokinetic testing was performed on the injured and noninjured legs. Additionally, a single-leg countermovement jump was performed to assess jump height using a jump accelerometer sensor. Extension strength values were used to assess the association between isokinetic muscle strength and jump height. Results The sample consisted of 60 female (mean age, 20.8 ± 8.3 years; mean weight, 61.7 ± 6.5 kg; mean height, 167.7 ± 5.3 cm) and 109 male (mean age, 23.2 ± 7.7 years; mean weight, 74.6 ± 10.2 kg; mean height, 179.9 ± 6.9 cm) patients. Bivariate correlation analysis showed an association (r = 0.56, P < .001) between jump height and isokinetic extension strength on the noninvolved side as well as an association (r = 0.52, P < .001) for the involved side. Regression analysis showed that in addition to jump height (beta = 0.49, P < .001), sex (beta = -0.17, P = .008) and body mass index (beta = 0.37, P < .001) affected isokinetic strength. The final model explained 51.1% of the variance in isokinetic muscle strength, with jump height having the strongest impact (beta = 0.49, P < .001) and explaining 31.5% of the variance. Conclusion Initial analysis showed a strong association between isokinetic strength and jump height. The study population encompassed various backgrounds, skill levels, and activity profiles, which might have affected the outcome. Even after controlling for age and sex, isokinetic strength was still moderately associated with jump height. Therefore, the jump technique and type of sport should be considered in future research.
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Affiliation(s)
- Felix Fischer
- Research Unit of Orthopaedic Sports Medicine and Injury Prevention/Institute for Sports Medicine, Alpine Medicine and Health Tourism/Private University of Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria
| | - Cornelia Blank
- Institute for Sports Medicine, Alpine Medicine and Health Tourism/Private University of Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria
| | - Tobias Dünnwald
- Institute for Sports Medicine, Alpine Medicine and Health Tourism/Private University of Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria
| | - Peter Gföller
- Gelenkpunkt-Sports and Joint Surgery, Innsbruck, Austria
| | - Elmar Herbst
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | | | - Christian Fink
- Research Unit of Orthopaedic Sports Medicine and Injury Prevention/Institute for Sports Medicine, Alpine Medicine and Health Tourism/Private University of Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria.,Gelenkpunkt-Sports and Joint Surgery, Innsbruck, Austria
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Abstract
PURPOSE OF REVIEW Because of the epidemiological incidence of anterior cruciate ligament (ACL) injuries, the high reinjury rates that occur when returning back to sports, the actual number of patients that return to the same premorbid level of competition, the high incidence of osteoarthritis at 5-10-year follow-ups, and the effects on the long-term health of the knee and the quality of life for the patient, individualizing the return to sports after ACL reconstruction (ACL-R) is critical. However, one of the challenging but unsolved dilemmas is what criteria and clinical decision making should be used to return an athlete back to sports following an ACL-R. This article describes an example of a functional testing algorithm (FTA) as one method for clinical decision making based on quantitative and qualitative testing and assessment utilized to make informed decisions to return an athlete to their sports safely and without compromised performance. The methods were a review of the best current evidence to support a FTA. RECENT FINDINGS In order to evaluate all the complicated domains of the clinical decision making for individualizing the return to sports after ACL-R, numerous assessments need to be performed including the biopsychosocial concepts, impairment testing, strength and power testing, functional testing, and patient-reported outcomes (PROs). The optimum criteria to use for individualizing the return to sports after ACL-R remain elusive. However, since this decision needs to be made on a regular basis with the safety and performance factors of the patient involved, this FTA provides one method of quantitatively and qualitatively making the decisions. Admittedly, there is no predictive validity of this system, but it does provide practical guidelines to facilitate the clinical decision making process for return to sports. The clinical decision to return an athlete back into competition has significant implications ranging from the safety of the athlete, to performance factors and actual litigation issues. By using a multifactorial FTA, such as the one described, provides quantitative and qualitatively criteria to make an informed decision in the best interests of the athlete.
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Affiliation(s)
- George J Davies
- Physical Therapy Program, Armstrong State University, Savannah, GA, USA.
- Coastal Therapy, Savannah, GA, USA.
- Gundersen Health System, LaCrosse, WI, USA.
| | - Eric McCarty
- Sports Medicine and Performance Center, Colorado University, Boulder, CO, USA
| | - Matthew Provencher
- Steadman Clinic and Steadman Philippon Research Institute, Vail, CO, USA
| | - Robert C Manske
- Department of Physical Therapy, Wichita State University, Via Christi Health, Wichita, KS, USA
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Abstract
Context: Neuromuscular alterations are a major causal factor of primary and secondary injuries. Though injury prevention programs have experienced some success, rates of injuries have not declined, and after injury, individuals often return to activity with functionality below clinical recommendations. Considering alternative therapies to the conventional concentric exercise approach, such as one that can target neuromuscular injury risk and postinjury alterations, may provide for more effective injury prevention and rehabilitation protocols. Evidence Acquisition: Peer-reviewed sources available on the Web of Science and MEDLINE databases from 2000 through 2016 were gathered using searches associated with the keywords eccentric exercise, injury prevention, and neuromuscular control. Hypothesis: Eccentric exercise will reduce injury risk by targeting specific neural and morphologic alterations that precipitate neuromuscular dysfunction. Study Design: Clinical review. Level of Evidence: Level 4. Results: Neuromuscular control is influenced by alterations in muscle morphology and neural activity. Eccentric exercise beneficially modifies several underlying factors of muscle morphology (fiber typing, cross-sectional area, working range, and pennation angle), and emerging evidence indicates that eccentric exercise is also beneficial to peripheral and central neural activity (alpha motorneuron recruitment/firing, sarcolemma activity, corticospinal excitability, and brain activation). Conclusion: There is mounting evidence that eccentric exercise is not only a therapeutic intervention influencing muscle morphology but also targets unique alterations in neuromuscular control, influencing injury risk.
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Affiliation(s)
- Lindsey K Lepley
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut
| | - Adam S Lepley
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut
| | - James A Onate
- School of Health and Rehabilitative Sciences, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Dustin R Grooms
- Ohio Musculoskeletal & Neurological Institute, Ohio University, Athens, Ohio.,Division of Athletic Training, School of Applied Health Sciences and Wellness, College of Health Sciences and Professions, Ohio University, Athens, Ohio
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Pozzi F, Di Stasi S, Zeni JA, Barrios JA. Single-limb drop landing biomechanics in active individuals with and without a history of anterior cruciate ligament reconstruction: A total support analysis. Clin Biomech (Bristol, Avon) 2017; 43:28-33. [PMID: 28189981 DOI: 10.1016/j.clinbiomech.2017.01.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 01/20/2017] [Accepted: 01/30/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND The purpose of this study was to characterize the magnitude and distribution of the total support moment during single-limb drop landings in individuals after anterior cruciate ligament reconstruction compared to a control group. METHODS Twenty participants after reconstruction and twenty control participants matched on sex, limb dominance and activity level were recruited. Motion analysis was performed during a single-limb drop landing task. Total support moment was determined by summing the internal extensor moments at the ankle, knee, and hip. Each relative joint contribution to the total support moment was calculated by dividing each individual contribution by the total support moment. Data were captured during a landing interval that started at initial contact and ended at the lowest vertical position of the pelvis. Data were then time-normalized and indexed at 25, 50, 75, and 100% of the landing interval. FINDINGS No between-group differences for total support moment magnitude were observed. At both 75% and 100% of the landing, the relative contribution of the knee joint was lower in those with a history of surgery (p<0.001). At the same instances, the relative contribution to the total support moment by the hip joint was greater in those with a history of surgery (p=0.004). INTERPRETATION In active participants after anterior cruciate ligament reconstruction, relative contributions to anti-gravity support of the center of mass shifted from the knee to the hip joint during single-limb landing, which became evident towards the end of the landing interval.
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Affiliation(s)
- Federico Pozzi
- Division of Biokinesiology and Physical Therapy, University of Southern California, USA
| | - Stephanie Di Stasi
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Department of Orthopaedics, The Ohio State University, USA
| | - Joseph A Zeni
- Department of Physical Therapy, University of Delaware, USA
| | - Joaquin A Barrios
- Department of Physical Therapy, University of Dayton, Raymond L. Fitz Hall, Room 209D, Dayton, OH, 45469-2925, USA.
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Comparison of Muscle Activation Levels Between Healthy Individuals and Persons Who Have Undergone Anterior Cruciate Ligament Reconstruction During Different Phases of Weight-Bearing Exercises. J Orthop Sports Phys Ther 2016; 46:984-992. [PMID: 27733087 DOI: 10.2519/jospt.2016.5896] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Study Design Cross-sectional, controlled laboratory study. Background Quantification of muscular activation during different phases of functional activities is important to understand activation deficits in individuals who have undergone anterior cruciate ligament reconstruction (ACLR). Objectives To compare activation levels of the vastus medialis (VM), medial hamstrings (MH), and gluteus medius (GMed) muscles during the different phases of weight-bearing tasks between individuals who had undergone ACLR and healthy controls. Methods Surface electromyography was used to measure the activation levels of the VM, MH, and GMed muscles in 16 participants who had undergone ACLR (average time since surgery, 4 years) and 15 healthy participants during the reach and return phases of the Star Excursion Balance Test (SEBT) and the ascending and descending phases of a step-down task (SDT). Repeated-measures analyses of variance were performed to determine whether muscle activation levels differed between groups during different phases of the tasks. Results There were significant group-by-phase interactions for the GMed during both the SEBT and SDT. Gluteus medius activation was lower for the ACLR group during the return phase of the posteromedial direction of the SEBT compared to the control group (P = .03). During the SDT, GMed activation was higher for the ACLR group during the ascending phase than during the descending phase (P<.001), while the control group showed no difference between phases (P = .71). Conclusion Individuals who had undergone ACLR have similar VM and MH activation compared to healthy individuals during different phases of the SDT and SEBT. However, phase differences for GMed activity and decreased GMed activity relative to healthy individuals were observed among ACLR participants. J Orthop Sports Phys Ther 2016;46(11):984-992. Epub 11 Oct 2016. doi:10.2519/jospt.2016.5896.
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Sharir R, Rafeeuddin R, Staes F, Dingenen B, George K, Vanrenterghem J, Robinson MA. Mapping current research trends on anterior cruciate ligament injury risk against the existing evidence: In vivo biomechanical risk factors. Clin Biomech (Bristol, Avon) 2016; 37:34-43. [PMID: 27286556 DOI: 10.1016/j.clinbiomech.2016.05.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 04/05/2016] [Accepted: 05/31/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Whilst many studies measure large numbers of biomechanical parameters and associate these to anterior cruciate ligament injury risk, they cannot be considered as anterior cruciate ligament injury risk factors without evidence from prospective studies. A review was conducted to systematically assess the in vivo biomechanical literature to identify biomechanical risk factors for non-contact anterior cruciate ligament injury during dynamic sports tasks; and to critically evaluate the research trends from retrospective and associative studies investigating non-contact anterior cruciate ligament injury risk. METHODS An electronic literature search was undertaken on studies examining in vivo biomechanical risk factors associated with non-contact anterior cruciate ligament injury. The relevant studies were assessed by classification; level 1 - a prospective cohort study, level 2 - a retrospective study or level 3 - an associative study. FINDINGS An initial search revealed 812 studies but this was reduced to 1 level 1 evidence study, 20 level 2 evidence studies and 175 level 3 evidence studies that met all inclusion criteria. Level 1 evidence showed that the knee abduction angle, knee abduction moment and ground reaction force were biomechanical risk factors. Nine level 2 studies and eighty-three level 3 studies used these to assess risk factors in their study. Inconsistencies in results and methods were observed in level 2 and 3 studies. INTERPRETATION There is a lack of high quality, prospective level 1 evidence related to biomechanical risk factors for non-contact anterior cruciate ligament injury. More prospective cohort studies are required to determine risk factors and provide improved prognostic capability.
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Affiliation(s)
- Raihana Sharir
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, United Kingdom.
| | - Radin Rafeeuddin
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, United Kingdom
| | - Filip Staes
- KU Leuven Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Belgium
| | - Bart Dingenen
- KU Leuven Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Belgium
| | - Keith George
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, United Kingdom
| | - Jos Vanrenterghem
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, United Kingdom
| | - Mark A Robinson
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, United Kingdom
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Dingenen B, Janssens L, Claes S, Bellemans J, Staes FF. Lower extremity muscle activation onset times during the transition from double-leg stance to single-leg stance in anterior cruciate ligament reconstructed subjects. Clin Biomech (Bristol, Avon) 2016; 35:116-23. [PMID: 27149566 DOI: 10.1016/j.clinbiomech.2016.04.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 04/08/2016] [Accepted: 04/25/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Previous studies mainly focused on muscles at the operated knee after anterior cruciate ligament reconstruction, less on muscles around other joints of the operated and non-operated leg. The aim of this study was to investigate muscle activation onset times during the transition from double-leg stance to single-leg stance in anterior cruciate ligament reconstructed subjects. METHODS Lower extremity muscle activation onset times of both legs of 20 fully returned to sport anterior cruciate ligament reconstructed subjects and 20 non-injured control subjects were measured during the transition from double-leg stance to single-leg stance in eyes open and eyes closed conditions. Analysis of covariance (ANCOVA) was used to evaluate differences between groups and differences between legs within both groups, while controlling for peak center of pressure velocity. FINDINGS Significantly delayed muscle activation onset times were found in the anterior cruciate ligament reconstructed group compared to the control group for gluteus maximus, gluteus medius, vastus medialis obliquus, medial hamstrings, lateral hamstrings and gastrocnemius in both eyes open and eyes closed conditions (P<.05). Within the anterior cruciate ligament reconstructed group, no significant different muscle activation onset times were found between the operated and non-operated leg (P>.05). INTERPRETATION Despite completion of rehabilitation and full return to sport, the anterior cruciate ligament reconstructed group showed neuromuscular control deficits that were not limited to the operated knee joint. Clinicians should focus on relearning multi-segmental anticipatory neuromuscular control strategies after anterior cruciate ligament reconstruction.
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Affiliation(s)
- Bart Dingenen
- KU Leuven Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Tervuursevest 101 b1501, 3001 Heverlee, Belgium.
| | - Luc Janssens
- KU Leuven Department of Electrical Engineering, Faculty of Engineering Technology Services, Andreas Vesaliusstraat 13, 3000 Leuven, Belgium; KU Leuven Cardiovascular and Respiratory Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Tervuursevest 101 b1501, 3001 Heverlee, Belgium.
| | - Steven Claes
- Department of Orthopedic Surgery, AZ Herentals Hospital, Nederrij 133, 2200 Herentals, Belgium; Department of Orthopedics, University Hospitals Leuven, Campus Pellenberg, Leuven, Weligerveld 1, 3212 Pellenberg, Belgium.
| | - Johan Bellemans
- Department of Orthopedics, University Hospitals Leuven, Campus Pellenberg, Leuven, Weligerveld 1, 3212 Pellenberg, Belgium.
| | - Filip F Staes
- KU Leuven Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Tervuursevest 101 b1501, 3001 Heverlee, Belgium
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Büchler L, Regli D, Evangelopoulos DS, Bieri K, Ahmad SS, Krismer A, Muller T, Kohl S. Functional recovery following primary ACL repair with dynamic intraligamentary stabilization. Knee 2016; 23:549-53. [PMID: 26972809 DOI: 10.1016/j.knee.2016.01.012] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 12/28/2015] [Accepted: 01/13/2016] [Indexed: 02/02/2023]
Abstract
BACKGROUND Recently, a new technique, dynamic intraligamentary stabilization (DIS) was introduced for the acute repair of ACL ruptures. The purpose of this study was to report the functional recovery for patients undergoing acute anterior cruciate ligament (ACL) repair alongside DIS. METHODS Forty five patients sustaining acute ACL rupture and treated with DIS repair were retrospectively evaluated. Limb symmetry index of the hop test as well as knee function by means of range of motion, knee swelling, pain and maximum strength were evaluated. Following completion of the rehabilitation program, the difference in anterior-posterior translation (Δ-AP Translation), IKDC, Tegner score (TAS) was additionally analyzed. RESULTS Forty five (13 females, 32 males) patients were included in the study. Mean age was 26years (range 18 to 54years). Median time to successfully complete hop test was 22.0weeks (range 11 to 32weeks) postoperatively. Median limb symmetry index 91.6%±8.3%. Median delta anterior-posterior translation compared to the healthy side was plus 0.0mm±1.6mm. Median IKDC was 89.5±6.5. Mean Tegner score (TAS) at 12months of follow-up was seven (range four to nine). Three patients suffered a rerupture during the first 12 postoperative months. CONCLUSIONS DIS technique with proper rehabilitation following acute ACL rupture provides successful functional recovery and low rerupture rate at one-year follow-up.
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Affiliation(s)
- Lorenz Büchler
- Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland
| | - Dorina Regli
- Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland
| | - Dimitrios Stergios Evangelopoulos
- Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland; 3rd Department of Orthopaedic Surgery, KAT Hospital, University of Athens, Greece.
| | - Kathrin Bieri
- Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland
| | - Sufian S Ahmad
- Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland
| | - Anna Krismer
- Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland
| | - Thorsten Muller
- Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland
| | - Sandro Kohl
- Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland
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Panos JA, Hoffman JT, Wordeman SC, Hewett TE. Medio-lateral knee fluency in anterior cruciate ligament-injured athletes during dynamic movement trials. Clin Biomech (Bristol, Avon) 2016; 33:7-12. [PMID: 26895446 PMCID: PMC4821715 DOI: 10.1016/j.clinbiomech.2016.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 01/25/2016] [Accepted: 01/28/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Correction of neuromuscular impairments after anterior cruciate ligament injury is vital to successful return to sport. Frontal plane knee control during landing is a common measure of lower-extremity neuromuscular control and asymmetries in neuromuscular control of the knee can predispose injured athletes to additional injury and associated morbidities. Therefore, this study investigated the effects of anterior cruciate ligament injury on knee biomechanics during landing. METHODS Two-dimensional frontal plane video of single leg drop, cross over drop, and drop vertical jump dynamic movement trials was analyzed for twenty injured and reconstructed athletes. The position of the knee joint center was tracked in ImageJ software for 500 milliseconds after landing to calculate medio-lateral knee motion velocities and determine normal fluency, the number of times per second knee velocity changed direction. The inverse of this calculation, analytical fluency, was used to associate larger numerical values with fluent movement. FINDINGS Analytical fluency was decreased in involved limbs for single leg drop trials (P=0.0018). Importantly, analytical fluency for single leg drop differed compared to cross over drop trials for involved (P<0.001), but not uninvolved limbs (P=0.5029). For involved limbs, analytical fluency values exhibited a stepwise trend in relative magnitudes. INTERPRETATION Decreased analytical fluency in involved limbs is consistent with previous studies. Fluency asymmetries observed during single leg drop tasks may be indicative of abhorrent landing strategies in the involved limb. Analytical fluency differences in unilateral tasks for injured limbs may represent neuromuscular impairment as a result of injury.
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Affiliation(s)
- Joseph A. Panos
- Department of Biomedical Engineering, Columbus, OH, USA, 43210
| | - Joshua T. Hoffman
- Sports Health and Performance Institute (SHPI) OSU Sports Medicine, Columbus, OH, USA, 43210
| | - Samuel C. Wordeman
- Sports Health and Performance Institute (SHPI) OSU Sports Medicine, Columbus, OH, USA, 43210
| | - Timothy E. Hewett
- Department of Biomedical Engineering, Columbus, OH, USA, 43210,Sports Health and Performance Institute (SHPI) OSU Sports Medicine, Columbus, OH, USA, 43210,The Ohio State University, Columbus, OH, USA, 43210,Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA, 44905,Departments of Physiology and Biomedical Engineering, and Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA, 44905
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Briem K, Ragnarsdóttir AM, Árnason SI, Sveinsson T. Altered medial versus lateral hamstring muscle activity during hop testing in female athletes 1-6 years after anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 2016; 24:12-7. [PMID: 25246177 DOI: 10.1007/s00167-014-3333-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 09/15/2014] [Indexed: 01/11/2023]
Abstract
PURPOSE The purpose of this study was to assess activation patterns of medial (MH) versus lateral (LH) hamstrings in female athletes who had undergone ACL reconstruction (ACLR) using a hamstrings-graft during single-limb functional testing. METHODS Eighteen athletes (1-6 years since ACLR) and 18 healthy controls were recruited from the Icelandic women's top divisions in football, handball, and basketball. Activation of the MH and LH was monitored bilaterally using surface electromyography. Peak activation of the normalized signal was identified for two phases of the single-limb crossover (SLC) hop test and performance (distance jumped) registered. Self-reported knee symptoms and function were evaluated with the Knee injury and Osteoarthritis Outcome Score (KOOS). A repeated measures general linear model was used for main statistical data analyses, comparing variables of interests between limbs (within-subjects factor) and between groups. RESULTS ACLR athletes had worse KOOS-symptoms scores (p < 0.05) than controls, while hop distance was equal. Overall, MH and LH muscle activation levels differed between the two phases of the SLC hop test (p < 0.05). Moreover, inter-limb differences in MH and LH activity were identified between groups (p < 0.05), mainly explained by greater LH than MH activation in the uninjured limb of ACLR athletes. CONCLUSION One to 6 years after ACLR, female athletes performed on par with uninjured controls, but demonstrated inter-limb differences in muscle activation patterns of the hamstrings that were not evident in controls. This may be an important factor to consider during postsurgical rehabilitation in order to lower the risk of a second injury. LEVEL OF EVIDENCE III.
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Affiliation(s)
- K Briem
- Department of Physical Therapy, Research Centre of Movement Science, University of Iceland, Stapi v/Hringbraut, 101, Reykjavik, Iceland.
| | - A M Ragnarsdóttir
- Department of Physical Therapy, Research Centre of Movement Science, University of Iceland, Stapi v/Hringbraut, 101, Reykjavik, Iceland
| | - S I Árnason
- Department of Physical Therapy, Research Centre of Movement Science, University of Iceland, Stapi v/Hringbraut, 101, Reykjavik, Iceland
| | - T Sveinsson
- Department of Physical Therapy, Research Centre of Movement Science, University of Iceland, Stapi v/Hringbraut, 101, Reykjavik, Iceland
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Neuroplasticity following anterior cruciate ligament injury: a framework for visual-motor training approaches in rehabilitation. J Orthop Sports Phys Ther 2015; 45:381-93. [PMID: 25579692 DOI: 10.2519/jospt.2015.5549] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
SYNOPSIS The neuroplastic effects of anterior cruciate ligament injury have recently become more evident, demonstrating underlying nervous system changes in addition to the expected mechanical alterations associated with injury. Interventions to mitigate these detrimental neuroplastic effects, along with the established biomechanical changes, need to be considered in the rehabilitation process and return-to-play progressions. This commentary establishes a link between dynamic movement mechanics, neurocognition, and visual processing regarding anterior cruciate ligament injury adaptations and injury risk. The proposed framework incorporates evidence from the disciplines of neuroscience, biomechanics, motor control, and psychology to support integrating neurocognitive and visual-motor approaches with traditional neuromuscular interventions during anterior cruciate ligament injury rehabilitation. Physical therapists, athletic trainers, strength coaches, and other health care and performance professionals can capitalize on this integration of sciences to utilize visual-training technologies and techniques to improve on already-established neuromuscular training methods. LEVEL OF EVIDENCE Therapy, level 5.
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Changes in quadriceps and hamstring cocontraction following landing instruction in patients with anterior cruciate ligament reconstruction. J Orthop Sports Phys Ther 2015; 45:273-80. [PMID: 25679342 DOI: 10.2519/jospt.2015.5335] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
STUDY DESIGN Pretest/posttest controlled laboratory study. OBJECTIVES To determine changes in the neuromuscular activation of the quadriceps and hamstrings following instructions aimed at improving knee flexion during a single-limb landing task in persons who have undergone anterior cruciate ligament reconstruction (ACLR). BACKGROUND Clinicians advise patients who have undergone ACLR to increase knee flexion during landing tasks to improve impact attenuation. Another long-standing construct underlying such instruction involves increasing cocontraction of the hamstrings with the quadriceps to limit anterior shear of the tibia on the femur. The current study examined whether cocontraction of the knee musculature changes following instruction to increase knee flexion during landing. METHODS Thirty-four physically active subjects with unilateral ACLR participated in a 1-time testing session. The kinetics and kinematics of single-leg landing on the surgical limb were analyzed before and after instruction to increase knee flexion and reduce the impact of landing. Vastus lateralis and biceps femoris activities were analyzed using surface electromyography and normalized to a maximal voluntary isometric contraction (MVIC). Cocontraction indices were integrated over the weight-acceptance phase of landing. RESULTS Following instruction, peak knee flexion increased (preinstruction mean ± SD, 56° ± 11°; postinstruction, 77° ± 12°; P<.001) and peak vertical ground reaction forces decreased (preinstruction, 3.50 ± 0.42 body mass; postinstruction, 3.06 ± 0.44 body mass; P<.001). Cocontraction also decreased following instruction (preinstruction, 30.88% ± 17.68% MVIC; postinstruction, 23.74% ± 15.39% MVIC; P<.001). The change in cocontraction was correlated with a decrease in hamstring activity (preinstruction, 23.79% ± 12.88% MVIC; postinstruction, 19.72% ± 13.92% MVIC; r = 0.80; P<.001). CONCLUSION Landing instruction produced both a statistically and clinically significant change in landing mechanics in persons post-ACLR. Conscious improvement of the absorptive power of the surgical limb was marked by decreased hamstring activity and cocontraction during single-limb landing.
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Labanca L, Laudani L, Casabona A, Menotti F, Mariani PP, Macaluso A. Early compensatory and anticipatory postural adjustments following anterior cruciate ligament reconstruction. Eur J Appl Physiol 2015; 115:1441-51. [DOI: 10.1007/s00421-015-3126-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 02/04/2015] [Indexed: 01/09/2023]
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Pollard CD, Stearns KM, Hayes AT, Heiderscheit BC. Altered lower extremity movement variability in female soccer players during side-step cutting after anterior cruciate ligament reconstruction. Am J Sports Med 2015; 43:460-5. [PMID: 25512664 DOI: 10.1177/0363546514560153] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Anterior cruciate ligament (ACL) reconstruction (ACLR) is common after an ACL tear and is thought to restore functional stability to the knee. A recent investigation demonstrated that individuals who have undergone ACLR exhibited increased lower extremity coupling variability during gait, suggestive of altered dynamic stability. However, little is known about whether they exhibit alterations in lower extremity variability during dynamic sport-specific tasks. PURPOSE To determine if female soccer players who have had an ACLR demonstrate differences in lower extremity coupling variability as compared with athletes with no history of knee injury during a side-step cutting maneuver. STUDY DESIGN Controlled laboratory study. METHODS Ten female soccer players who had undergone ACLR served as the experimental group, and 10 female soccer players with no history of knee ligament injury composed the control group (CON). Three-dimensional kinematics and ground-reaction forces were collected while each participant performed a side-step cutting maneuver. Based on known ACL loading patterns, 7 lower extremity intralimb couplings were created. With use of a vector-coding technique, the coordination variability was calculated for each coupling. Independent t tests were used to determine group differences in variability for each coupling (P ≤ .05). RESULTS Individuals who had undergone ACLR exhibited increased lower extremity variability during side-step cutting as compared with control subjects in the following couplings: hip rotation/knee abduction-adduction (27.2° ± 11.5° [ACLR] vs 19.7° ± 6.8° [CON]; P = .04), hip flexion-extension/knee abduction-adduction (26.0° ± 13.3° [ACLR] vs 18.6° ± 5.3° [CON]; P = .05), knee abduction-adduction/knee flexion-extension (13.5° ± 5.7° [ACLR] vs 7.3° ± 2.7° [CON]; P < .01), and knee abduction-adduction/knee rotation (26.4° ± 10.8° [ACLR] vs 19.3° ± 4.5° [CON]; P = .03). In addition, there was a trend toward increased variability in the hip rotation/ankle inversion-eversion coupling (22.9° ± 9.3° [ACLR] vs 18.0° ± 6.7° [CON]; P = .09) and knee abduction-adduction/ankle inversion-eversion coupling (25.9° ± 10.0° [ACLR] vs 20.2° ± 9.7° [CON]; P = .10). CONCLUSION Female soccer players who have undergone ACLR and returned to sports participation exhibit altered lower extremity coupling variability during side-step cutting. CLINICAL RELEVANCE While individuals who have had an ACLR exhibit mechanical knee stability before returning to sports, the observed increased movement variability during side-step cutting is likely reflective of altered neuromuscular control and may contribute to the known increased risk for ACL reinjury and knee osteoarthritis after return to sports participation. Improving the understanding of altered lower extremity coupling variability after ACLR will aid in the development of more effective rehabilitation programs.
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Affiliation(s)
- Christine D Pollard
- Program in Exercise and Sport Science, Oregon State University-Cascades, Bend, Oregon, USA
| | - Kristen M Stearns
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Andy T Hayes
- Program in Exercise and Sport Science, Oregon State University-Cascades, Bend, Oregon, USA
| | - Bryan C Heiderscheit
- Department of Orthopedics and Rehabilitation, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
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Wang JH, Hsu WL, Lee SC, Wang TG, Rolf C, Su SC, Shih TTF, Wang HK. Neuromechanical characteristics in the knees of patients who had primary conservative treatment for a torn cruciate ligament and reconstruction afterward. J Formos Med Assoc 2015; 114:1240-9. [PMID: 25624115 DOI: 10.1016/j.jfma.2014.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 10/06/2014] [Accepted: 10/08/2014] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND/PURPOSE To compare the neuromechanical characteristics and subjective outcomes for knees of patients with a cruciate ligament tear and reconstruction with those for knees of controls at three time intervals, and to determine correlations between the characteristics and subjective outcomes. METHODS Ten participants with a cruciate ligament tear and at least a 12-week conservative treatment prior to ligament reconstruction were prospectively measured prior to and 3 months and 6 months after surgery. Ten healthy individuals were recruited as controls. Questionnaire surveys regarding the injured knee were conducted, as were bilateral measurements of root mean square electromyography (EMG), the rate of EMG rise, the median frequency in the vastus medialis of the quadriceps muscles and antagonist coactivation from the semitendinosus muscle, and force capacities, including peak torque, rate of force development, and total works of the knee extension. Correlations between the EMG variables (of the vastus medialis and semitendinosus) and the force capacities, and between the EMG variables and the knee injury and osteoarthritis outcome scores (KOOS), and between force capacities and the KOOS were assessed in the participants with a ligament reconstruction. RESULTS Pre- and postoperative results of EMG variable and force capacities were lower in both knees of the experimental group participants than in the control group participants (all p < 0.05). Correlations between EMG and force capacities, and between these parameters and the KOOS were found. CONCLUSION There were bilateral neuromechanical defects in the knees of the participants who had undergone conservative treatment as well as reconstruction after a cruciate ligament tear.
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Affiliation(s)
- Jyh-Horng Wang
- Department of Orthopedic Surgery, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC; Department of Orthopedic Surgery, National Taiwan University Hospital, Taipei, Taiwan, ROC
| | - Wei-Li Hsu
- School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC; Center of Physical Therapy, National Taiwan University Hospital, Taipei, Taiwan, ROC
| | - Song-Ching Lee
- Department of Physical Medicine & Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan, ROC
| | - Tyng-Guey Wang
- Department of Physical Medicine & Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan, ROC; Department of Rehabilitation, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
| | - Christer Rolf
- Department of Orthopaedics, Clintec, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Sheng-Chu Su
- Department of Business Administration, Hwa Hsia Institute of Technology, Taipei, Taiwan, ROC
| | - Tiffany T F Shih
- Department of Medical Image, National Taiwan University Hospital, Taipei, Taiwan, ROC; Department of Surgery, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
| | - Hsing-Kuo Wang
- School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC; Center of Physical Therapy, National Taiwan University Hospital, Taipei, Taiwan, ROC.
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Petersen W, Taheri P, Forkel P, Zantop T. Return to play following ACL reconstruction: a systematic review about strength deficits. Arch Orthop Trauma Surg 2014; 134:1417-28. [PMID: 25091127 DOI: 10.1007/s00402-014-1992-x] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Indexed: 01/09/2023]
Abstract
PURPOSE There is a lack of consensus regarding appropriate criteria attesting patients' unrestricted sports activities after ACL reconstruction. Purpose of this study was to perform a systematic review about strength deficits to find out if a strength test might be a return to play criterion. DATA SOURCE Pubmed central, Google Scholar. STUDY ELIGIBILITY CRITERIA English language articles. INTERVENTIONS Strength tests after ACL reconstruction with autologous tendon grafts. METHODS A systematic search for articles about muscle strength after ACL reconstruction was performed. RESULTS Forty-five articles could be identified. All articles identified reported strength deficits after ACL reconstruction in comparison to control subjects. Some of these deficits persisted up to 5 years after surgery. Knee flexor strength is more impaired after ACL reconstruction with hamstring grafts and quadriceps strength after BPTB ACL reconstruction. CONCLUSION Strength deficits of hip, knee and ankle muscles are reported after ACL reconstruction. Muscular strength test may be an important tool to determine if an athlete can return to competitive sports after ACL reconstruction.
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Affiliation(s)
- Wolf Petersen
- Department of Trauma and Orthopaedic Surgery, Martin Luther Hospital, Caspar Theyss Straße 27-31, 14193, Berlin, Grunewald, Germany,
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Ortiz A, Capo-Lugo CE, Venegas-Rios HL. Biomechanical deficiencies in women with semitendinosus-gracilis anterior cruciate ligament reconstruction during drop jumps. PM R 2014; 6:1097-106. [PMID: 25043260 DOI: 10.1016/j.pmrj.2014.07.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 07/02/2014] [Accepted: 07/08/2014] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare landing mechanics and neuromuscular recruitment strategies between women with semitendinosus-gracilis anterior cruciate ligament reconstruction (SG-ACLr) and noninjured women during double- and single-legged drop jumps. DESIGN Cross-sectional biomechanical study. SETTING Single university-based biomechanics laboratory. PARTICIPANTS Fourteen women 1-5 years post-SG-ACLr and 16 noninjured women participated in this study. METHODS After anthropometric measurements, warm-up, and familiarization procedures, participants performed 5 trials of a double- and single-legged drop jumps. MAIN OUTCOME MEASUREMENTS Dynamic knee valgus was measured as the distance between knee joints during the landing phase of the double-leg drop jumps. Medial knee displacement was the outcome considered during the landing phase of the single-leg drop jumps. For both drop jump tasks, neuromuscular recruitment was evaluated through rectified normalized electromyographic activity of the quadriceps and hamstrings (amplitude and latency), and quadriceps/hamstrings electromyographic co-contraction ratio. RESULTS Although the SG-ACLr group demonstrated a tendency toward a greater dynamic knee valgus during both drop jumps, these differences did not reach statistical significance. EMG data revealed different neuromuscular strategies for each group, depending on the specific jump. CONCLUSIONS These findings suggest that women with SG-ACLr have a tendency toward greater dynamic knee valgus that could predispose to additional knee injuries. Rehabilitation specialists need to be aware of existing kinematic and neuromuscular deficiencies years after SG-ACLr. Taking this into consideration will aid in prescribing appropriate interventions designed to prevent re-injury.
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Affiliation(s)
- Alexis Ortiz
- School of Physical Therapy, Texas Woman's University, 6700 Fannin Street, Houston, TX 77030(∗).
| | - Carmen E Capo-Lugo
- Interdepartamental Neuroscience Program, Northwestern University, Chicago, IL(†)
| | - Heidi L Venegas-Rios
- Division of Biostatistics, School of Public Health, University of Texas, Houston, TX(‡)
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Bell DR, Smith MD, Pennuto AP, Stiffler MR, Olson ME. Jump-landing mechanics after anterior cruciate ligament reconstruction: a landing error scoring system study. J Athl Train 2014; 49:435-41. [PMID: 24905666 DOI: 10.4085/1062-6050-49.3.21] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
CONTEXT The Landing Error Scoring System (LESS) is a clinical evaluation of jump-landing mechanics and may provide useful information in assisting with return-to-sport decisions in patients after anterior cruciate ligament reconstruction (ACLR). However, it is currently unknown how patients with ACLR perform on the LESS compared with healthy controls. OBJECTIVE To determine if the total LESS score differed between individuals with ACLR and healthy controls and to determine the types of errors that differ between groups. DESIGN Cross-sectional study. SETTING Research laboratory. PATIENTS OR OTHER PARTICIPANTS A total of 27 individuals with unilateral ACLR (age = 19.8 ± 1.8 years, height = 170 ± 5.5 cm, mass = 68.8 ± 11.9 kg) and 27 controls (age = 20.5 ± 1.7 years, height = 169 ± 8.4 cm, mass = 66.6 ± 9.0 kg) with no history of ACLR. INTERVENTION(S) Each participant completed 3 trials of a standardized jump-landing task. MAIN OUTCOME MEASURE(S) Each jump landing was assessed for specific postures using standardized LESS criteria by a blinded evaluator. Individual LESS items were summed to create a total LESS score. The dominant limb was assessed in the control group, and the reconstructed limb was assessed in the ACLR group. RESULTS The ACLR group had higher LESS scores compared with controls (ACLR: 6.7 ± 2.1 errors, control: 5.6 ± 1.5 errors, P = .04). Additionally, the ACLR group was more likely to err when landing with lateral trunk flexion (Fisher exact test, P = .002). CONCLUSIONS Individuals with ACLR had worse landing mechanics as measured by the LESS. Lateral trunk deviation may be related to quadriceps avoidance in the reconstructed limb or poor trunk neuromuscular control. The LESS is useful for evaluating landing errors in patients with ACLR and may help to identify areas of focus during rehabilitation and before return to sport.
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Affiliation(s)
- David Robert Bell
- Departments of Kinesiology and Orthopedics and Rehabilitation, University of Wisconsin, Madison
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Nazem K, Barzegar M, Hosseini A, Karimi M. Can we use peroneus longus in addition to hamstring tendons for anterior cruciate ligament reconstruction? Adv Biomed Res 2014; 3:115. [PMID: 24949286 PMCID: PMC4063109 DOI: 10.4103/2277-9175.132696] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Accepted: 05/14/2014] [Indexed: 01/24/2023] Open
Abstract
Background: The aim of this study is to evaluate the possible effects of removing the peroneus longus on the ankle and gait parameters, in order to add insufficient hamstring tendons for anterior cruciate ligament (ACL) reconstruction. Materials and Methods: In this controlled clinical trial, 375 patients with ACL rupture who underwent ACL reconstruction arthroscopically using hamstring tendons in the orthopedic clinics of Isfahan University of Medical Sciences in 2010 and 2011 were selected. Fifteen patients were included because their hamstring tendon diameter was lower than 8 mm and peroneus longus was added. After 6 months, the patients were followed using “Kistler force plate” to detect 3D kinematics and kinetics of the ankles and spatiotemporal walking parameters. Results: There was a significant difference between both operated and non-operated ankles in flexion/extension range of motion (P < 0.05). There was no significant difference between the moments of both ankles in sagittal and coronal planes (P > 0.05), but there was a significant difference between the moments of both ankles in the transverse plane (P = 0.006). There was a significant difference in the force of operated and non-operated ankles in all three planes (P < 0.05). There was no significant difference in the mean values of spatiotemporal gait parameters between operated and non-operated sides (P > 0.05). Conclusion: Removing the peroneus longus tendon has no effect on gait parameters and does not lead to instability of the ankle. So, it can be used as an autogenous graft in orthopedic surgeries.
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Affiliation(s)
| | | | | | - Mohammadtaghi Karimi
- Department of Rehabilitation, Isfahan University of Medical Sciences, Isfahan, Iran
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Brorsson S, Nilsdotter A, Thorstensson C, Bremander A. Differences in muscle activity during hand-dexterity tasks between women with arthritis and a healthy reference group. BMC Musculoskelet Disord 2014; 15:154. [PMID: 24886491 PMCID: PMC4060090 DOI: 10.1186/1471-2474-15-154] [Citation(s) in RCA: 10] [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: 07/18/2013] [Accepted: 04/23/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Impaired hand function is common in patients with arthritis and it affects performance of daily activities; thus, hand exercises are recommended. There is little information on the extent to which the disease affects activation of the flexor and extensor muscles during these hand-dexterity tasks. The purpose of this study was to compare muscle activation during such tasks in subjects with arthritis and in a healthy reference group. METHODS Muscle activation was measured in m. extensor digitorium communis (EDC) and in m. flexor carpi radialis (FCR) with surface electromyography (EMG) in women with rheumatoid arthritis (RA, n = 20), hand osteoarthritis (HOA, n = 16) and in a healthy reference group (n = 20) during the performance of four daily activity tasks and four hand exercises. Maximal voluntary isometric contraction (MVIC) was measured to enable intermuscular comparisons, and muscle activation is presented as %MVIC. RESULTS The arthritis group used a higher %MVIC than the reference group in both FCR and EDC when cutting with a pair of scissors, pulling up a zipper and-for the EDC-also when writing with a pen and using a key (p < 0.02). The exercise "rolling dough with flat hands" required the lowest %MVIC and may be less effective in improving muscle strength. CONCLUSIONS Women with arthritis tend to use higher levels of muscle activation in daily tasks than healthy women, and wrist extensors and flexors appear to be equally affected. It is important that hand training programs reflect real-life situations and focus also on extensor strength.
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Affiliation(s)
- Sofia Brorsson
- Health and Welfare, Dala Sports Academy, Dalarna University, SE-781 88 Falun, Sweden.
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