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[PMID]:28458336
[Au] Autor:Nakamura Y; Suzuki T; Kamimura M; Ikegami S; Uchiyama S; Kato H
[Ad] Endereço:Department of Orthopaedic Surgery, Shinshu University School of Medicine.
[Ti] Título:Alfacalcidol Increases the Therapeutic Efficacy of Ibandronate on Bone Mineral Density in Japanese Women with Primary Osteoporosis.
[So] Source:Tohoku J Exp Med;241(4):319-326, 2017 04.
[Is] ISSN:1349-3329
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Bisphosphonates (BPs) increase bone mineral density (BMD) through the inhibition of osteoclast activity. Among BPs, ibandronate (IBN) is a strong inhibitor of bone resorption. However, the effects of a vitamin D analogue, alfacalcidol (ALF), on IBN treatment for osteoporosis is unknown. Fifty-three treatment-naïve post-menopausal women with primary osteoporosis were recruited and divided into IBN-treatment group (IBN group) and IBN with ALF group (IBN/ALF group). IBN (1.0 mg) was intravenously injected once a month, with or without oral ALF (1.0 µg/day). Ultimately, 19 subjects in IBN group and 26 in IBN/ALF group were analyzed. Bone turnover markers were examined at 4, 6, 12, and 18 months, and BMD was measured at 6, 12, and 18 months. Compared with pre-treatment, bone turnover markers significantly decreased in both groups after 4 months. The levels of serum N-terminal propeptide of type-1 procollagen and tartrate-resistant acid phosphatase-5b, and urinary N-terminal telopeptide of type-I collagen were significantly lower in IBN/ALF group than those in IBN group at 12 months. Lumbar 1-4 (L)-BMD significantly increased from 6 months in IBN/ALF group and at 18 months in IBN group. L-BMD was significantly higher in IBN/ALF group (6.6% increase) than in IBN group (3.4%) at 18 months. Total hip (H)-BMD significantly increased from 6 months in IBN/ALF group and tended to improve in IBN group. H-BMD was significantly higher in IBN/ALF group (4.8%) than in IBN group (3.2%) at 18 months. In conclusion, treatment with ALF in combination with IBN improves BMD in post-menopausal women with osteoporosis.
[Mh] Termos MeSH primário: Conservadores da Densidade Óssea/uso terapêutico
Densidade Óssea/efeitos dos fármacos
Difosfonatos/uso terapêutico
Hidroxicolecalciferóis/uso terapêutico
Osteoporose/tratamento farmacológico
[Mh] Termos MeSH secundário: Absorciometria de Fóton
Administração Intravenosa
Administração Oral
Idoso
Grupo com Ancestrais do Continente Asiático
Sinergismo Farmacológico
Feminino
Quadril/diagnóstico por imagem
Seres Humanos
Hidroxicolecalciferóis/efeitos adversos
Pós-Menopausa
Fosfatase Ácida Resistente a Tartarato/sangue
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bone Density Conservation Agents); 0 (Diphosphonates); 0 (Hydroxycholecalciferols); EC 3.1.3.2 (Tartrate-Resistant Acid Phosphatase); UMD7G2653W (ibandronic acid); URQ2517572 (alfacalcidol)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170502
[St] Status:MEDLINE
[do] DOI:10.1620/tjem.241.319


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[PMID]:29324877
[Au] Autor:Kaya M
[Ad] Endereço:Hitsujigaoka Hospital, Sapporo, Hokkaido, Japan.
[Ti] Título:Impact of extra-articular pathologies on groin pain: An arthroscopic evaluation.
[So] Source:PLoS One;13(1):e0191091, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:PURPOSE: For patients who have anterior hip pain evaluated by Patrick's test and tenderness at Scarpa's triangle, we perform periarticular debridement based on the hypothesis that extra-articular pathologies are responsible for the hip pain. The purpose of this study was to categorize the endoscopic extra-articular findings and to evaluate the clinical significance of periarticular pathologies in anterior hip pain. METHODS: Arthroscopic findings of 77 patients who underwent periarthritic debridement were evaluated. As extra-articular pathologies, injuries of the direct head and reflective head of the rectus femoris muscle were evaluated. A thin layer of fat tissue normally exists on the anterior inferior iliac spine (AIIS), the attachment site of the direct head of the rectus femoris muscle. The macroscopic appearance of the fat pad on the AIIS was categorized as normal, blood vessel-rich adipose tissue or adipose tissue with fibrosis or scar formation and histologically confirmed. Adhesion of gluteal muscles to the joint capsule was also evaluated. RESULTS: Of the 77 patients, 75 had rupture of the direct head of the rectus femoris. In contrast, rupture of the reflective head was extremely rare. Seven patients had a normal fat pad on the AIIS, 11 had blood vessel-rich adipose tissue and 55 had adipose tissue with fibrosis. Fat tissue was completely replaced by fibrous scar tissue in another 4 patients. In 64 patients, adhesion between the anterior joint capsule and gluteus muscles was marked. Groin pain disappeared soon after the operation even when labral tears were not repaired and all patients returned to daily life and sports activities within 2 weeks after operation. CONCLUSION: Rectus femoris tendinosis, fibrosis of the AIIS fat pad, and adhesion of gluteal and rectus femoris muscles are common extra-articular pathologies in patients with anterior hip pain. Management of only these lesions induces rapid relief of anterior hip pain even in the absence of labral tear repair. My observations suggest that it is desirable to be aware of the presence of periarticular pathologies as a cause of groin pain.
[Mh] Termos MeSH primário: Artroscopia
Virilha/patologia
Dor/etiologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Idoso
Feminino
Quadril/diagnóstico por imagem
Seres Humanos
Masculino
Meia-Idade
Dor/diagnóstico
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180112
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191091


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[PMID]:28322115
[Au] Autor:Li Y; Simpson KJ; Nolan L; Miller M; Johnson B
[Ad] Endereço:a Department of Kinesiology , California State University , Chico , CA , USA.
[Ti] Título:Lower extremity kinematics of curve sprinting displayed by runners using a transtibial prosthesis.
[So] Source:J Sports Sci;36(3):293-302, 2018 Feb.
[Is] ISSN:1466-447X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The purpose of the study was to determine if the kinematics exhibited by skilled runners wearing a unilateral, transtibial prosthesis during the curve section of a 200-m sprint race were influenced by interaction of limb-type (prosthetic limb (PROS-L) vs. nonprosthetic limb (NONPROS-L)) and curve-side (inside and outside limb relative to the centre of the curve). Step kinematics, toe clearance and knee and hip flexion/extension, hip ab/adduction for one stride of each limb were generated from video of 13 males running the curve during an international 200 m transtibial-classified competition. Using planned comparisons (P < 0.05), limb-type and curve-side interactions showed shortest support time and lowest hip abduction displacement by outside-NONPROS-L; shortest step length and longest time to peak knee flexion by the inside-PROS-L. For limb-type, greater maximum knee flexion angle and lower hip extension angles and displacement during support and toe clearance of PROS-Ls occurred. For curve-side, higher hip abduction angles during non-support were displayed by inside-limbs. Therefore, practitioners should consider that, for curve running, these kinematics are affected mostly by PROS-L limitations, with no clear advantage of having the PROS-L on either side of the curve.
[Mh] Termos MeSH primário: Amputados/reabilitação
Membros Artificiais
Extremidade Inferior/fisiologia
Corrida/fisiologia
[Mh] Termos MeSH secundário: Fenômenos Biomecânicos
Quadril/fisiologia
Seres Humanos
Joelho/fisiologia
Masculino
Desenho de Prótese
Estudos de Tempo e Movimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:170322
[St] Status:MEDLINE
[do] DOI:10.1080/02640414.2017.1303186


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[PMID]:29190787
[Au] Autor:Hornová J; Ruzicka P; Hrubina M; Stastný E; Kosková A; Fulín P; Gallo J; Daniel M
[Ad] Endereço:Laboratory of Biomechanics, Faculty of Mechanical Engineering, Czech Technical University in Prague, Prague, Czech Republic.
[Ti] Título:Magnification of digital hip radiographs differs between clinical workplaces.
[So] Source:PLoS One;12(11):e0188743, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Preoperative planning for total hip arthroplasty includes templating on anteroposterior radiographs. It is necessary to consider radiographic magnification in order to scale templates accurately. Studies dealing with hip templating report different values of radiographic magnification. It is not clear if the observed difference in magnification between the studies is caused by variability in studied groups, methodology or instrumentation. We hypothesize that there is a difference in magnification between clinical workplaces. Within this study, radiographic magnification was estimated on 337 radiographs of patients after total hip surgery from five orthopaedic departments in the Czech Republic. Magnification was determined for each patient as a ratio between diameter of implanted femoral head measured on radiogram and its true size. One-way ANOVA revealed significant differences in magnification between workplaces (F(4,332) = 132, p≤0.001). These results suggest that radiographic magnification depends on the workplace where it is taken or more precisely on radiographic device. It indicates potential limits in generalizability of results of studies dealing with preoperative planning accuracy to other institutions.
[Mh] Termos MeSH primário: Artroplastia de Quadril
Quadril/diagnóstico por imagem
Interpretação de Imagem Radiográfica Assistida por Computador/métodos
[Mh] Termos MeSH secundário: Feminino
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:171201
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188743


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[PMID]:29190676
[Au] Autor:Guo L; Gao Z; Ge H
[Ad] Endereço:Department of Endocrinology, Teda International Cardiovascular Hospital, Tianjin, China.
[Ti] Título:Effects of serum 25-hydroxyvitaminD level on decreased bone mineral density at femoral neck and total hip in Chinese type 2 diabetes.
[So] Source:PLoS One;12(11):e0188894, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: The aims of this study is to observe the levels of serum 25-hydroxyvitaminD (25OHD), parathyroid hormone and bone mineral density (BMD) in type 2 diabetes as well as to analyze the correlationship between 25OHD level and BMD. METHODS: The subjects included 368 type 2 diabetic patients, ages ranged 40-79 years and 300 non-diabetic control subjects matched for age, gender and body mass index. The serum 25OHD concentration, parathyroid hormone level and BMDs value at lumbar spine (L1-L4), femoral neck, total hip and total body were measured. The BMDs (g/cm2) was measured by LUNAR's DEXA dual-energy X-ray absorptiometry. RESULTS: â‘ Compared with control subjects, the serum 25OHD level, BMDs at the femoral neck and total hip declined in type 2 diabetes[(45±17 vs. 36±12 nmol/L), (0.93±0.17 vs. 0.85±0.14 g/cm2), (0.93±0.14 vs. 0.87±0.15g/cm2) (all P<0.05)]; The parathyroid hormone level in type 2 diabetes was higher in type 2 diabetes than that in control subjects (8.5±4.2 vs. 5.6±3.9 pmol/L) (P<0.05). â‘¡Compared with diabetes duration ≤10 years group, BMDs at the femoral neck and total hip decreased in diabetes duration >10years group [(0.88±0.11 vs. 0.81±0.15 g/cm2), (0.91±0.14 vs. 0.84±0.16 g/cm2)(All P<0.05)]; The parathyroid hormone level increased in diabetes duration >10years group than diabetes duration ≤10 years group (10.6±9.1 vs. 7.1±3.7 pmol/L) (P<0.05). â‘¢ Compared with hemoglobin A1c (HbA1c) ≤8% group, 25OHD and BMDs at the femoral neck and total hip in HbA1c>8% group decreased [(40±15 vs. 32±13 nmol/l), (0.89±0.13 vs. 0.83±0.13 g/cm2), (0.95±0.13 vs. 0.83±0.16 g/cm2) (All P<0.05)] and the parathyroid hormone level increased (7.2±4.0 vs. 10.0±8.8 pmol/L) (P<0.05). â‘£The morbidity of diabetic osteoporosis and osteopenia (41.0%, 47.8%) were higher than those in control subjects (27.0%,33.3%) (X2 = 4.37 and 4.70, P = 0.04 and 0.03); Diabetes duration, HbA1c and parathyroid hormone levels were longer or higher in Diabetic osteoporosis group than those in normal BMD group and osteopenia group(All p<0.05). ⑤ Simple factor correlation analysis showed that the BMD at the femoral neck was negatively correlated with the age, diabetes duration, HbA1c, parathyroid hormone (rs = -0.18,-0.23,-0.18,-0.25), and positively correlated with 25OHD (rs = 0.23). CONCLUSIONS: Decreased BMDs and increased incidence of osteoporosis were observed in type 2 diabetic patients, which are closely related to the serum 25OHD level. These findings were more prominent at the femoral neck and total hip for patients with a longer diabetic history and poor glycemic control.
[Mh] Termos MeSH primário: Densidade Óssea
Diabetes Mellitus Tipo 2/patologia
Colo do Fêmur/diagnóstico por imagem
Quadril/diagnóstico por imagem
Vitamina D/análogos & derivados
[Mh] Termos MeSH secundário: Adulto
Idoso
Estudos de Casos e Controles
China
Diabetes Mellitus Tipo 2/sangue
Feminino
Seres Humanos
Masculino
Meia-Idade
Vitamina D/sangue
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
1406-16-2 (Vitamin D); 64719-49-9 (25-hydroxyvitamin D)
[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:171201
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188894


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[PMID]:29020040
[Au] Autor:Giezen H; Stevens M; van den Akker-Scheek I; Reininga IHF
[Ad] Endereço:Department of Orthopedics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
[Ti] Título:Validity and reliability of the Dutch version of the Copenhagen Hip And Groin Outcome Score (HAGOS-NL) in patients with hip pathology.
[So] Source:PLoS One;12(10):e0186064, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND AND OBJECTIVES: The Copenhagen Hip And Groin Outcome Score (HAGOS) was developed to assess disease-specific consequences in young to middle-aged, physically active hip and/or groin patients. The study aimed to determine validity and reliability of the Dutch version of the HAGOS (HAGOS-NL) for middle-aged patients with hip complaints. DESIGN AND METHODS: To assess validity, 117 participants completed five questionnaires: HAGOS-NL, international Hip Outcome Tool (iHOT-12NL), Hip disability and Osteoarthritis Outcome Score (HOOS), RAND-36 Health Survey and Tegner activity scale. Structural validity was determined by conducting confirmatory factor analysis. Construct validity was analyzed by formulating predefined hypotheses regarding relationships between the HAGOS-NL and subscales of the iHOT-12NL, HOOS, RAND-36 and Tegner activity scale. The HAGOS-NL was filled out again by 67 patients to explore test-retest reliability. Reliability was assessed in terms of Cronbach's alpha, Intraclass Correlation Coefficient (ICC), Standard Error of Measurement (SEM) and Minimal Detectable Change (MDC). The Bland and Altman method was used to explore absolute agreement. RESULTS: Factor analysis confirmed that the HAGOS-NL consists of six subscales. All hypotheses were confirmed, indicating good construct validity. Internal consistency was good, with Cronbach's alpha values ranging from 0.89 to 0.98. Test-retest reliability was considered good, with ICC values of 0.80 and higher. The SEM ranged from 6.6 to 12.3, and MDC at individual level from 18.3 to 34.1 and at group level from 2.3 to 4.4. Bland and Altman analyses showed no bias. CONCLUSION: The HAGOS-NL is a reliable and valid instrument for measuring pain, physical functioning and quality of life in middle-aged patients with hip complaints.
[Mh] Termos MeSH primário: Virilha/patologia
Quadril/patologia
Inquéritos e Questionários
[Mh] Termos MeSH secundário: Adolescente
Adulto
Exercício
Feminino
Seres Humanos
Masculino
Meia-Idade
Países Baixos
Qualidade de Vida
Reprodutibilidade dos Testes
Estatísticas não Paramétricas
Resultado do Tratamento
Escala Visual Analógica
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:171012
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0186064


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[PMID]:28777105
[Au] Autor:Awad LN; Bae J; Kudzia P; Long A; Hendron K; Holt KG; OʼDonnell K; Ellis TD; Walsh CJ
[Ad] Endereço:From the Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts (LNA, JB, PK, AL, KO, CJW); Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts (LNA, JB, AL, CJW); and Department of Physical Therapy and Athletic Training, Boston University, Boston, Massachusetts (LNA, KH, KGH, TDE).
[Ti] Título:Reducing Circumduction and Hip Hiking During Hemiparetic Walking Through Targeted Assistance of the Paretic Limb Using a Soft Robotic Exosuit.
[So] Source:Am J Phys Med Rehabil;96(10 Suppl 1):S157-S164, 2017 Oct.
[Is] ISSN:1537-7385
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: The aim of the study was to evaluate the effects on common poststroke gait compensations of a soft wearable robot (exosuit) designed to assist the paretic limb during hemiparetic walking. DESIGN: A single-session study of eight individuals in the chronic phase of stroke recovery was conducted. Two testing conditions were compared: walking with the exosuit powered versus walking with the exosuit unpowered. Each condition was 8 minutes in duration. RESULTS: Compared with walking with the exosuit unpowered, walking with the exosuit powered resulted in reductions in hip hiking (27 [6%], P = 0.004) and circumduction (20 [5%], P = 0.004). A relationship between changes in knee flexion and changes in hip hiking was observed (Pearson r = -0.913, P < 0.001). Similarly, multivariate regression revealed that changes in knee flexion (ß = -0.912, P = 0.007), but not ankle dorsiflexion (ß = -0.194, P = 0.341), independently predicted changes in hip hiking (R = 0.87, F(2, 4) = 13.48, P = 0.017). CONCLUSIONS: Exosuit assistance of the paretic limb during walking produces immediate changes in the kinematic strategy used to advance the paretic limb. Future work is necessary to determine how exosuit-induced reductions in paretic hip hiking and circumduction during gait training could be leveraged to facilitate more normal walking behavior during unassisted walking.
[Mh] Termos MeSH primário: Terapia por Exercício/instrumentação
Paresia/reabilitação
Robótica/instrumentação
Reabilitação do Acidente Vascular Cerebral/instrumentação
Caminhada/fisiologia
[Mh] Termos MeSH secundário: Adulto
Idoso
Fenômenos Biomecânicos
Terapia por Exercício/métodos
Feminino
Quadril/fisiopatologia
Seres Humanos
Joelho/fisiopatologia
Masculino
Meia-Idade
Movimento
Análise Multivariada
Paresia/etiologia
Paresia/fisiopatologia
Análise de Regressão
Acidente Vascular Cerebral/complicações
Acidente Vascular Cerebral/fisiopatologia
Reabilitação do Acidente Vascular Cerebral/métodos
Resultado do Tratamento
Teste de Caminhada
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170805
[St] Status:MEDLINE
[do] DOI:10.1097/PHM.0000000000000800


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[PMID]:28715424
[Au] Autor:Amabile AH; Bolte JH; Richter SD
[Ad] Endereço:Department of Physical Therapy, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America.
[Ti] Título:Atrophy of gluteus maximus among women with a history of chronic low back pain.
[So] Source:PLoS One;12(7):e0177008, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Although the relationship between low back pain (LBP) and the size of certain trunk muscles has been extensively studied, the relationship between gluteus maximus (GM) size and LBP has been only minimally examined. Determining whether such a relationship exists would help improve our understanding of the etiology of LBP, and possibly provide a rationale for the use of therapeutic exercise interventions targeting GM with LBP patients. The objective of this study was to compare gluteus maximus cross-sectional area in individuals with chronic LBP, and in a group of individuals without LBP. Our hypothesis was that individuals with LBP would have greater atrophy in their gluteus maximus muscles than our control group. MATERIALS AND METHODS: For this case-control study, we analyzed medical history and pelvic computed tomography (CT) scans for 36 female patients with a history of chronic LBP, and 32 female patients without a history of LBP. Muscle cross-sectional area of gluteus maximus was measured from axial CT scans using OsiriX MD software, then was normalized to patient height, and used to compare the two groups. The number of back pain-related medical visits was also correlated with gluteus maximus cross-sectional area. RESULTS: Mean normalized cross-sectional area was significantly smaller in the LBP group than in the control group, with t = 2.439 and P<0.05. The number of back pain-related visits was found to be significantly correlated with normalized cross-sectional area, with r = -0.270 and P<0.05. The atrophy seen in the present research may reflect incidental disuse atrophy seen with LBP, which is present in many muscle groups after prolonged immobilization or with a sedentary lifestyle. CONCLUSIONS: This research demonstrated a previously only minimally explored relationship between gluteus maximus cross-sectional area and LBP in women. Further research is indicated in individuals with varying age, sex, and LBP diagnoses.
[Mh] Termos MeSH primário: Quadril
Dor Lombar/complicações
Músculo Esquelético/patologia
Atrofia Muscular/complicações
[Mh] Termos MeSH secundário: Adulto
Idoso
Doença Crônica
Feminino
Seres Humanos
Dor Lombar/patologia
Meia-Idade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170926
[Lr] Data última revisão:
170926
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170718
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0177008


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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]:28700630
[Au] Autor:Dembia CL; Silder A; Uchida TK; Hicks JL; Delp SL
[Ad] Endereço:Department of Mechanical Engineering, Stanford University, Stanford, California, United States of America.
[Ti] Título:Simulating ideal assistive devices to reduce the metabolic cost of walking with heavy loads.
[So] Source:PLoS One;12(7):e0180320, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Wearable robotic devices can restore and enhance mobility. There is growing interest in designing devices that reduce the metabolic cost of walking; however, designers lack guidelines for which joints to assist and when to provide the assistance. To help address this problem, we used musculoskeletal simulation to predict how hypothetical devices affect muscle activity and metabolic cost when walking with heavy loads. We explored 7 massless devices, each providing unrestricted torque at one degree of freedom in one direction (hip abduction, hip flexion, hip extension, knee flexion, knee extension, ankle plantarflexion, or ankle dorsiflexion). We used the Computed Muscle Control algorithm in OpenSim to find device torque profiles that minimized the sum of squared muscle activations while tracking measured kinematics of loaded walking without assistance. We then examined the metabolic savings provided by each device, the corresponding device torque profiles, and the resulting changes in muscle activity. We found that the hip flexion, knee flexion, and hip abduction devices provided greater metabolic savings than the ankle plantarflexion device. The hip abduction device had the greatest ratio of metabolic savings to peak instantaneous positive device power, suggesting that frontal-plane hip assistance may be an efficient way to reduce metabolic cost. Overall, the device torque profiles generally differed from the corresponding net joint moment generated by muscles without assistance, and occasionally exceeded the net joint moment to reduce muscle activity at other degrees of freedom. Many devices affected the activity of muscles elsewhere in the limb; for example, the hip flexion device affected muscles that span the ankle joint. Our results may help experimentalists decide which joint motions to target when building devices and can provide intuition for how devices may interact with the musculoskeletal system. The simulations are freely available online, allowing others to reproduce and extend our work.
[Mh] Termos MeSH primário: Metabolismo Energético
Equipamentos de Autoajuda
Caminhada/fisiologia
Suporte de Carga/fisiologia
[Mh] Termos MeSH secundário: Adulto
Fenômenos Biomecânicos
Quadril/fisiologia
Seres Humanos
Joelho/fisiologia
Masculino
Músculo Esquelético/fisiologia
Robótica/instrumentação
Torque
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170926
[Lr] Data última revisão:
170926
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170713
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0180320



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