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[PMID]:29304102
[Au] Autor:Azmi NL; Ding Z; Xu R; Bull AMJ
[Ad] Endereço:Department of Bioengineering, Imperial College London, London, United Kingdom.
[Ti] Título:Activation of biceps femoris long head reduces tibiofemoral anterior shear force and tibial internal rotation torque in healthy subjects.
[So] Source:PLoS One;13(1):e0190672, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The anterior cruciate ligament (ACL) provides resistance to tibial internal rotation torque and anterior shear at the knee. ACL deficiency results in knee instability. Optimisation of muscle contraction through functional electrical stimulation (FES) offers the prospect of mitigating the destabilising effects of ACL deficiency. The hypothesis of this study is that activation of the biceps femoris long head (BFLH) reduces the tibial internal rotation torque and the anterior shear force at the knee. Gait data of twelve healthy subjects were measured with and without the application of FES and taken as inputs to a computational musculoskeletal model. The model was used to investigate the optimum levels of BFLH activation during FES gait in reducing the anterior shear force to zero. This study found that FES significantly reduced the tibial internal rotation torque at the knee during the stance phase of gait (p = 0.0322) and the computational musculoskeletal modelling revealed that a mean BFLH activation of 20.8% (±8.4%) could reduce the anterior shear force to zero. At the time frame when the anterior shear force was zero, the internal rotation torque was reduced by 0.023 ± 0.0167 Nm/BW, with a mean 188% reduction across subjects (p = 0.0002). In conclusion, activation of the BFLH is able to reduce the tibial internal rotation torque and the anterior shear force at the knee in healthy control subjects. This should be tested on ACL deficient subject to consider its effect in mitigating instability due to ligament deficiency. In future clinical practice, activating the BFLH may be used to protect ACL reconstructions during post-operative rehabilitation, assist with residual instabilities post reconstruction, and reduce the need for ACL reconstruction surgery in some cases.
[Mh] Termos MeSH primário: Músculos Isquiotibiais/fisiologia
Tendões dos Isquiotibiais/fisiologia
Torque
[Mh] Termos MeSH secundário: Adulto
Feminino
Voluntários Saudáveis
Seres Humanos
Masculino
Modelos Anatômicos
Modelos Biológicos
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180106
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190672


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[PMID]:29314794
[Ti] Título:Isokinetic profile of subjects with the ruptured anterior cruciated ligament.
[So] Source:Vojnosanit Pregl;73(7):631-5, 2016 Jul.
[Is] ISSN:0042-8450
[Cp] País de publicação:Serbia
[La] Idioma:eng
[Ab] Resumo:Background/Aim: All changes in the knee that appear after anterior cruciate ligament (ACL) lesion lead to difficulties in walking, running, jumping especially during sudden changes of the line of movement. This significantly impairs quality of life of these subjects and leads to decrease in physical activity. Knee injuries make 5% of all most severe acute sport injuries. The aim of the study was to determine strength of the thigh muscles in persons with unilateral rupture of the ACL and to evaluate potential bilateral differences between healthy and injured leg. Methods: This study involved 114 male athletes of different sport specialities with the clinical diagnosis of ACL rupture. Each subject had unilateral ACL rupture and the other leg was actually the control for this research. An isokinetic device was used to evaluate the muscle strength of thigh muscles. Testing was performed for two testing speeds, 60º/s and 180º/s. Results: Data analysis showed a statistically significant difference (p < 0.01) between the ACL and the healthy leg in the following parameters: peak torque for thigh extensors (Ptrq_E), angle to peak torque during extension (Ang_E), power of extension (Pow_E) and work during extension (Work_E). Analysing hamstrings to quadriceps (H/Q) ratio we found the unilateral disbalance of thigh muscle strength in ACL leg. Conclusion: A high level of validity makes isokinetic dynamometry the method for evaluation of thigh muscles strength and leaves this field of research open for new studies in order to improve both diagnostic and rehabilitation of patients with the insufficient ACL.
[Mh] Termos MeSH primário: Lesões do Ligamento Cruzado Anterior/fisiopatologia
Traumatismos em Atletas/fisiopatologia
Músculos Isquiotibiais/fisiopatologia
Força Muscular/fisiologia
Músculo Quadríceps/fisiopatologia
[Mh] Termos MeSH secundário: Seres Humanos
Masculino
Dinamômetro de Força Muscular
Qualidade de Vida
Ruptura/fisiopatologia
Coxa da Perna
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180213
[Lr] Data última revisão:
180213
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180110
[St] Status:MEDLINE
[do] DOI:10.2298/VSP141128067D


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[PMID]:29360834
[Au] Autor:Behan FP; Maden-Wilkinson TM; Pain MTG; Folland JP
[Ad] Endereço:Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Loughborough University, Leicestershire, United Kingdom.
[Ti] Título:Sex differences in muscle morphology of the knee flexors and knee extensors.
[So] Source:PLoS One;13(1):e0190903, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: Females experience higher risk of anterior cruciate ligament (ACL) injuries; males experience higher risk of hamstring strain injuries. Differences in injury may be partially due to sex differences in knee flexor (KF) to knee extensor (KE) muscle size ratio and the proportional size of constituent muscles. PURPOSE: To compare the absolute and proportional size, and mass distribution, of individual KE and KF muscles, as well as overall size and balance (size ratio) of these muscle groups between the sexes. METHODS: T1-weighted axial plane MR images (1.5T) of healthy untrained young males and females (32 vs 34) were acquired to determine thigh muscle anatomical cross-sectional area (ACSA). Maximal ACSA (ACSAmax) of constituent muscles, summated for KF and KE muscle groups, and the KF:KE ratio were calculated. RESULTS: Females had 25.3% smaller KE ACSAmax (70.9±12.1 vs 93.6±10.3 cm2; P<0.001) and 29.6% smaller KF ACSAmax than males (38.8±7.3cm2 vs 55.1±7.3cm2; P<0.001). Consequently, females had lower KF:KE ACSA ratio (P = 0.031). There were sex differences in the proportional size of 2/4 KE and 5/6 KF. In females, vastus lateralis (VL), biceps femoris long-head (BFlh) and semimembranosus (SM) were a greater proportion and sartorius (SA), gracilis (GR) and biceps femoris short-head (BFsh) a smaller proportion of their respective muscle groups compared to males (All P<0.05). CONCLUSION: Sex differences in KF:KE ACSAmax ratio may contribute to increased risk of ACL injury in females. Sex discrepancies in absolute and proportional size of SA, GR, VL and BFlh may contribute further anatomical explanations for sex differences in injury incidence.
[Mh] Termos MeSH primário: Joelho/anatomia & histologia
Músculo Esquelético/anatomia & histologia
[Mh] Termos MeSH secundário: Adolescente
Lesões do Ligamento Cruzado Anterior/etiologia
Feminino
Músculos Isquiotibiais/anatomia & histologia
Músculos Isquiotibiais/lesões
Músculos Isquiotibiais/fisiologia
Seres Humanos
Joelho/diagnóstico por imagem
Joelho/fisiologia
Traumatismos do Joelho/etiologia
Imagem por Ressonância Magnética
Masculino
Músculo Esquelético/diagnóstico por imagem
Músculo Esquelético/fisiologia
Tamanho do Órgão
Músculo Quadríceps/anatomia & histologia
Músculo Quadríceps/diagnóstico por imagem
Músculo Quadríceps/fisiologia
Fatores de Risco
Caracteres Sexuais
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180206
[Lr] Data última revisão:
180206
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180124
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190903


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[PMID]:29216241
[Au] Autor:Grygorowicz M; Michalowska M; Walczak T; Owen A; Grabski JK; Pyda A; Piontek T; Kotwicki T
[Ad] Endereço:Department of Spondyloortopaedics and Biomechanics of the Spine, Poznan University of Medical Sciences, Poznan, Poland.
[Ti] Título:Discussion about different cut-off values of conventional hamstring-to-quadriceps ratio used in hamstring injury prediction among professional male football players.
[So] Source:PLoS One;12(12):e0188974, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: To measure the sensitivity and specificity of differences cut-off values for isokinetic Hcon/Qcon ratio in order to improve the capacity to evaluate (retrospectively) the injury of hamstring muscles in professional soccer screened with knee isokinetic tests. DESIGN: Retrospective study. METHODS: Medical and biomechanical data of professional football players playing for the same team for at least one season between 2010 and 2016 were analysed. Hamstring strain injury cases and the reports generated via isokinetic testing were investigated. Isokinetic concentric(con) hamstring(H) and quadriceps(Q) absolute strength in addition with Hcon/Qcon ratio were examined for the injured versus uninjured limbs among injured players, and for the injured and non-injured players. 2 x 2 contingency table was used for comparing variables: predicted injured or predicted uninjured with actual injured or actual uninjured. Sensitivity, specificity, accuracy, positive and negative predictive values, and positive and negative likelihood ratio were calculated for three different cut-off values (0.47 vs. 0.6 vs. 0.658) to compare the discriminative power of an isokinetic test, whilst examining the key value of Hcon/Qcon ratio which may indicate the highest level of ability to predispose a player to injury. McNemar's chi2 test with Yates's correction was used to determine agreement between the tests. PQStat software was used for all statistical analysis, and an alpha level of p <0.05 was used for all statistical comparisons. RESULTS: 340 isokinetic test reports on both limbs of 66 professional soccer players were analysed. Eleven players suffered hamstring injuries during the analysed period. None of these players sustained recurrence of hamstring injury. One player sustained hamstring strain injury on both legs, thus the total number of injuries was 12. Application of different cut-off values for Hcon/Qcon significantly affected the sensitivity and specificity of isokinetic test used as a tool for muscle injury detection. The use of 0.47 of Hcon/Qcon as a discriminate value resulted in significantly lower sensitivity when compared to 0.658 threshold (sensitivity of 16.7% vs. 91.7%, respectively; t = 6.125,p = 0.0133). Calculated values of specificity (when three different cut-off were applied) were also significantly different. Threshold of 0.6 of Hcon/Qcon resulted with significantly lower specificity compared to 0.47 value (specificity of 46.9% vs. 94.5%, respectively; t = 153.0,p<0.0001), and significantly higher specificity when compared to 0.658 (specificity of 46.9% vs. 24.1%, respectively; t = 229.0, p<0.0001). CONCLUSION: The use of different cut-off values for Hcon/Qcon significantly affected the sensitivity and specificity of isokinetic testing. The interpretation of usefulness of isokinetic test as a screening tool in a group of male professional football players to predict hamstring injury occurrence within the next 12 months might be therefore significantly biased due to the different threshold values of Hcon/Qcon. Using one "normative" value as a cut-off (e.g. 0.47 or 0.60, or 0.658) to quantify soccer players (or not) to the group with a higher risk of knee injury might result in biased outcomes due to the natural strength asymmetry that is observed within the group of soccer players.
[Mh] Termos MeSH primário: Músculos Isquiotibiais/lesões
Músculo Quadríceps/fisiologia
Futebol
[Mh] Termos MeSH secundário: Adolescente
Adulto
Músculos Isquiotibiais/fisiologia
Seres Humanos
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171226
[Lr] Data última revisão:
171226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171208
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188974


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[PMID]:28704884
[Au] Autor:Schuermans J; Van Tiggelen D; Witvrouw E
[Ad] Endereço:Rehabilitation Sciences and Physiotherapy, Ghent University, Ghent, Belgium.
[Ti] Título:Prone Hip Extension Muscle Recruitment is Associated with Hamstring Injury Risk in Amateur Soccer.
[So] Source:Int J Sports Med;38(9):696-706, 2017 Sep.
[Is] ISSN:1439-3964
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:'Core stability' is considered essential in rehabilitation and prevention. Particularly with respect to hamstring injury prevention, assessment and training of lumbo-pelvic control is thought to be key. However, supporting scientific evidence is lacking. To explore the importance of proximal neuromuscular function with regard to hamstring injury susceptibility, this study investigated the association between the Prone Hip Extension (PHE) muscle activation pattern and hamstring injury incidence in amateur soccer players. 60 healthy male soccer players underwent a comprehensive clinical examination, comprising a range of motion assessments and the investigation of the posterior chain muscle activation pattern during PHE. Subsequently, hamstring injury incidence was recorded prospectively throughout a 1.5-season monitoring period. Players who were injured presented a PHE activation pattern that differed significantly from those who did not. Contrary to the controls, hamstring activity onset was significantly delayed (p=0.018), resulting in a shifted activation sequence. Players were 8 times more likely to get injured if the hamstring muscles were activated after the lumbar erector spinae instead of vice versa (p=0.009). Assessment of muscle recruitment during PHE demonstrated to be useful in injury prediction, suggesting that neuromuscular coordination in the posterior chain influences hamstring injury vulnerability.
[Mh] Termos MeSH primário: Músculos Isquiotibiais/lesões
Quadril/fisiopatologia
Amplitude de Movimento Articular
Futebol/lesões
[Mh] Termos MeSH secundário: Adulto
Atletas
Seres Humanos
Masculino
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170918
[Lr] Data última revisão:
170918
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170714
[St] Status:MEDLINE
[do] DOI:10.1055/s-0043-103016


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[PMID]:28704883
[Au] Autor:Muyor JM
[Ad] Endereço:Laboratory of Kinesiology, Biomechanics and Ergonomics (KIBIOMER), University of Almería, Almería, Spain.
[Ti] Título:Validity and Reliability of a New Device (WIMU®) for Measuring Hamstring Muscle Extensibility.
[So] Source:Int J Sports Med;38(9):691-695, 2017 Sep.
[Is] ISSN:1439-3964
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The aims of the current study were 1) to evaluate the validity of the WIMU system for measuring hamstring muscle extensibility in the passive straight leg raise (PSLR) test using an inclinometer for the criterion and 2) to determine the test-retest reliability of the WIMU system to measure hamstring muscle extensibility during the PSLR test. 55 subjects were evaluated on 2 separate occasions. Data from a Unilever inclinometer and WIMU system were collected simultaneously. Intraclass correlation coefficients (ICCs) for the validity were very high (0.983-1); a very low systematic bias (-0.21°--0.42°), random error (0.05°-0.04°) and standard error of the estimate (0.43°-0.34°) were observed (left-right leg, respectively) between the 2 devices (inclinometer and the WIMU system). The R between the devices was 0.999 (p<0.001) in both the left and right legs. The test-retest reliability of the WIMU system was excellent, with ICCs ranging from 0.972-0.995, low coefficients of variation (0.01%), and a low standard error of the estimate (0.19-0.31°). The WIMU system showed strong concurrent validity and excellent test-retest reliability for the evaluation of hamstring muscle extensibility in the PSLR test.
[Mh] Termos MeSH primário: Músculos Isquiotibiais/fisiologia
Exercícios de Alongamento Muscular/métodos
Amplitude de Movimento Articular
[Mh] Termos MeSH secundário: Adolescente
Seres Humanos
Masculino
Reprodutibilidade dos Testes
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; VALIDATION STUDIES
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170918
[Lr] Data última revisão:
170918
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170714
[St] Status:MEDLINE
[do] DOI:10.1055/s-0043-108998


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[PMID]:28538321
[Au] Autor:da Silva JJ; Schoenfeld BJ; Marchetti PN; Pecoraro SL; Greve JMD; Marchetti PH
[Ad] Endereço:1Department of Human Movement Sciences, Graduate Program in Science of Human Movement, College of Health Science (FACIS), Methodist University of Piracicaba, Piracicaba, São Paulo, Brazil; 2Department of Health Sciences, Program of Exercise Science, CUNY Lehman College, Bronx, New York; and 3Laboratory of Kinesiology, Institute of Orthopedics and Traumatology, School of Medicine, University of São Paulo, São Paulo, Brazil.
[Ti] Título:Muscle Activation Differs Between Partial and Full Back Squat Exercise With External Load Equated.
[So] Source:J Strength Cond Res;31(6):1688-1693, 2017 06.
[Is] ISSN:1533-4287
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Changes in range of motion affect the magnitude of the load during the squat exercise and, consequently, may influence muscle activation. The purpose of this study was to evaluate muscle activation between the partial and full back squat exercise with external load equated on a relative basis between conditions. Fifteen young, healthy, resistance-trained men (age: 26 ± 5 years, height: 173 ± 6 cm) performed a back squat at their 10 repetition maximum (10RM) using 2 different ranges of motion (partial and full) in a randomized, counterbalanced fashion. Surface electromyography was used to measure muscle activation of the vastus lateralis, vastus medialis, rectus femoris, biceps femoris (BF), semitendinosus, erector spinae, soleus (SL), and gluteus maximus (GM). In general, muscle activity was highest during the partial back squat for GM (p = 0.004), BF (p = 0.009), and SL (p = 0.031) when compared with full-back squat. There was no significant difference for rating of perceived exertion between partial and full back squat exercise at 10RM (8 ± 1 and 9 ± 1, respectively). In conclusion, the range of motion in the back squat alters muscle activation of the prime mover (GM) and stabilizers (SL and BF) when performed with the load equated on a relative basis. Thus, the partial back squat maximizes the level of muscle activation of the GM and associated stabilizer muscles.
[Mh] Termos MeSH primário: Músculo Esquelético/fisiologia
Treinamento de Resistência/métodos
[Mh] Termos MeSH secundário: Adulto
Dorso/fisiologia
Eletromiografia
Exercício/fisiologia
Músculos Isquiotibiais/fisiologia
Seres Humanos
Masculino
Músculo Quadríceps/fisiologia
Amplitude de Movimento Articular/fisiologia
Coxa da Perna/fisiologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171101
[Lr] Data última revisão:
171101
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170525
[St] Status:MEDLINE
[do] DOI:10.1519/JSC.0000000000001713


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[PMID]:28538311
[Au] Autor:Cavanaugh MT; Aboodarda SJ; Behm DG
[Ad] Endereço:School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's, Newfoundland, Canada.
[Ti] Título:Intrasession and Intersession Reliability of Quadriceps' and Hamstrings' Electromyography During a Standardized Hurdle Jump Test With Single Leg Landing.
[So] Source:J Strength Cond Res;31(6):1601-1609, 2017 06.
[Is] ISSN:1533-4287
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The objective of this study was to develop a standardized test to determine quadriceps and hamstrings muscle activation in a position emulating a noncontact anterior cruciate ligament injury. We assessed the intrasession and intersession reliability of surface electromyography (EMG) of the dominant leg after single-leg landing from a standardized hurdle jump. Eighteen subjects (10 males, 8 females) participated in 4 repeated sessions. During each session, individuals performed 3 successful jumps over a hurdle set to 75% of their maximal countermovement jump height and landed on their dominant leg. A jump was only considered successful if the individual could maintain the landing position for longer than 2 seconds after initial ground contact. In one of the 4 sessions, subjects were tested again after a 4-minute rest. The activation of the vastus lateralis (VL), vastus medialis (VM), and biceps femoris (BF), were examined by quantifying the root mean squared (RMS) EMG for 2 seconds immediately after the initial contact. Data from all 3 successful jumps were used to generate intraclass correlation coefficients (ICC), which were then used to determine intrasession and intersession reliability of surface EMG for each muscle. Intrasession reliability was excellent with ICC values of 0.96, 0.94, and 0.93 for the VL, VM, and BF, respectively. Additionally, intersession ICCs were 0.92 (VL), 0.95 (VM), and 0.94 (BF). The standardized hurdle jump with single-leg landing seemed to be a reliable technique for measuring muscle activation for 3 muscles that contribute to knee stabilization.
[Mh] Termos MeSH primário: Eletromiografia/normas
Músculos Isquiotibiais/fisiologia
Músculo Quadríceps/fisiologia
[Mh] Termos MeSH secundário: Adulto
Lesões do Ligamento Cruzado Anterior/fisiopatologia
Feminino
Seres Humanos
Articulação do Joelho/fisiologia
Masculino
Reprodutibilidade dos Testes
Esportes/fisiologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171101
[Lr] Data última revisão:
171101
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170525
[St] Status:MEDLINE
[do] DOI:10.1519/JSC.0000000000001631


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[PMID]:28423061
[Au] Autor:Konrath JM; Saxby DJ; Killen BA; Pizzolato C; Vertullo CJ; Barrett RS; Lloyd DG
[Ad] Endereço:School of Allied Health Sciences and Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia.
[Ti] Título:Muscle contributions to medial tibiofemoral compartment contact loading following ACL reconstruction using semitendinosus and gracilis tendon grafts.
[So] Source:PLoS One;12(4):e0176016, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The muscle-tendon properties of the semitendinosus (ST) and gracilis (GR) are substantially altered following tendon harvest for the purpose of anterior cruciate ligament reconstruction (ACLR). This study adopted a musculoskeletal modelling approach to determine how the changes to the ST and GR muscle-tendon properties alter their contribution to medial compartment contact loading within the tibiofemoral joint in post ACLR patients, and the extent to which other muscles compensate under the same external loading conditions during walking, running and sidestep cutting. MATERIALS AND METHODS: Motion capture and electromyography (EMG) data from 16 lower extremity muscles were acquired during walking, running and cutting in 25 participants that had undergone an ACLR using a quadruple (ST+GR) hamstring auto-graft. An EMG-driven musculoskeletal model was used to estimate the medial compartment contact loads during the stance phase of each gait task. An adjusted model was then created by altering muscle-tendon properties for the ST and GR to reflect their reported changes following ACLR. Parameters for the other muscles in the model were calibrated to match the experimental joint moments. RESULTS: The medial compartment contact loads for the standard and adjusted models were similar. The combined contributions of ST and GR to medial compartment contact load in the adjusted model were reduced by 26%, 17% and 17% during walking, running and cutting, respectively. These deficits were balanced by increases in the contribution made by the semimembranosus muscle of 33% and 22% during running and cutting, respectively. CONCLUSION: Alterations to the ST and GR muscle-tendon properties in ACLR patients resulted in reduced contribution to medial compartment contact loads during gait tasks, for which the semimembranosus muscle can compensate.
[Mh] Termos MeSH primário: Lesões do Ligamento Cruzado Anterior/reabilitação
Reconstrução do Ligamento Cruzado Anterior/métodos
Ligamento Cruzado Anterior/cirurgia
Músculo Grácil/transplante
Tendões dos Isquiotibiais/transplante
Articulação do Joelho/fisiologia
[Mh] Termos MeSH secundário: Adaptação Fisiológica
Adulto
Ligamento Cruzado Anterior/patologia
Lesões do Ligamento Cruzado Anterior/patologia
Lesões do Ligamento Cruzado Anterior/cirurgia
Fenômenos Biomecânicos
Eletromiografia
Feminino
Marcha/fisiologia
Músculo Grácil/lesões
Músculos Isquiotibiais/lesões
Músculos Isquiotibiais/fisiologia
Músculos Isquiotibiais/transplante
Tendões dos Isquiotibiais/lesões
Seres Humanos
Masculino
Modelos Anatômicos
Corrida/fisiologia
Transplante Autólogo
Caminhada/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170505
[Lr] Data última revisão:
170505
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170420
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0176016


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[PMID]:28341795
[Au] Autor:Hughes T; Callaghan M
[Ad] Endereço:Medical and Sports Science Department, Manchester United Football Club Ltd., Manchester, UK richard.body@manchester.ac.uk.
[Ti] Título:BET 2: LASER THERAPY IN THE TREATMENT OF ACUTE HAMSTRING MUSCLE INJURIES.
[So] Source:Emerg Med J;34(4):266, 2017 Apr.
[Is] ISSN:1472-0213
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Local laser therapy has been suggested as a promising treatment for acute hamstring muscle tears. We carried out a shortcut systematic review to establish whether therapeutic lasers are beneficial for patients with acute hamstring tears. Despite a comprehensive literature search, no studies that were directly relevant to the question could be identified. The clinical bottom line is therefore that there is currently no evidence for the use of any form of laser therapy in the treatment of acute hamstring muscle tears.
[Mh] Termos MeSH primário: Músculos Isquiotibiais/lesões
Terapia a Laser/normas
Traumatismos da Perna/terapia
[Mh] Termos MeSH secundário: Traumatismos em Atletas/terapia
Seres Humanos
Terapia a Laser/métodos
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171031
[Lr] Data última revisão:
171031
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170326
[St] Status:MEDLINE
[do] DOI:10.1136/emermed-2017-206665.2



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