Base de dados : MEDLINE
Pesquisa : A02.165.308.650 [Categoria DeCS]
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[PMID]:28877108
[Au] Autor:Meyers T
[Ad] Endereço:Tina Meyers, MBA, BSN, CWOCN, Harris Health Systems, Landscape Court, Conroe, Texas.
[Ti] Título:Prevention of Heel Pressure Injuries and Plantar Flexion Contractures With Use of a Heel Protector in High-Risk Neurotrauma, Medical, and Surgical Intensive Care Units: A Randomized Controlled Trial.
[So] Source:J Wound Ostomy Continence Nurs;44(5):429-433, 2017 Sep/Oct.
[Is] ISSN:1528-3976
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:PURPOSE: The purpose of this study was to compare the use of a heel protector to standard of care (pillows) in the prevention of hospital-acquired pressure injuries (HAPI) of the heels and prevention of plantar flexion contractures. DESIGN: Randomized controlled trial. SUBJECTS AND SETTING: The study took place on a surgical intensive care unit, medical intensive care unit, and neurotrauma intensive care unit. Inclusion criteria were a minimum of 5 days of sedation related to care for a critical illness, immobility for 6 to 8 hours before study initiation, a Braden Scale for Pressure Sore Risk score 18 or less, and a mobility subscale score 2 or less. Patients were included if they had preexisting heel pressure injury or plantar flexion contracture. The sample comprised 54 subjects; 37 were randomly allocated to the intervention group and 17 to the control group. Their average age-mean (standard deviation)-was 40.7 (14.96) years in the control group and 44.6 (17.15) years in the intervention group. METHODS: Data were collected from patients' electronic medical records. We recorded subject demographics, presence of diabetes mellitus or peripheral vascular disease, Glasgow Coma Scale scores (every shift), Braden Scale for Pressure Sore Risk scores (every shift), heel skin assessments (every shift), goniometric measurements (every other day), and adverse events (every shift). Assessments and measurements were continued until the patient was discharged from the study. RESULTS: None of the patients in the intervention group developed HAPI of the heels, as compared to 7 in the control group (0% vs 41%, P < .001). Patients in the intervention group had a significantly greater decrease in goniometric scores (mean decrease = 1.4 ± 2.25) compared to the control group by day 3 (mean decrease = 0.1 ± 0.52 P = .004) and the last study day (mean decrease = 2.0 ± 3.02 for the intervention group vs 0.07 ± 0.96 for the control group; P < .001). CONCLUSIONS: Study findings indicate that a heel protector that ensures off-loading and maintains the foot in a neutral position is more effective for prevention of HAPI of the heel and contractures as compared to standard care using pillows to position the heel and redistribute pressure.
[Mh] Termos MeSH primário: Contratura/prevenção & controle
Lesão por Pressão/prevenção & controle
Higiene da Pele/instrumentação
[Mh] Termos MeSH secundário: Adulto
Idoso
Idoso de 80 Anos ou mais
Enfermagem de Cuidados Críticos/métodos
Complicações do Diabetes
Feminino
Calcanhar/lesões
Seres Humanos
Escala de Gravidade do Ferimento
Unidades de Terapia Intensiva/organização & administração
Unidades de Terapia Intensiva/estatística & dados numéricos
Masculino
Meia-Idade
Doenças Vasculares Periféricas/complicações
Placa Plantar/lesões
Estudos Prospectivos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171102
[Lr] Data última revisão:
171102
[Sb] Subgrupo de revista:N
[Da] Data de entrada para processamento:170907
[St] Status:MEDLINE
[do] DOI:10.1097/WON.0000000000000355


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[PMID]:28570126
[Au] Autor:Yamada AF; Crema MD; Nery C; Baumfeld D; Mann TS; Skaf AY; Fernandes ADRC
[Ad] Endereço:1 Department of Diagnostic Imaging, Federal University of São Paulo, Rua Napoleão de Barros, 800, São Paulo, SP 04024-002, Brazil.
[Ti] Título:Second and Third Metatarsophalangeal Plantar Plate Tears: Diagnostic Performance of Direct and Indirect MRI Features Using Surgical Findings as the Reference Standard.
[So] Source:AJR Am J Roentgenol;209(2):W100-W108, 2017 Aug.
[Is] ISSN:1546-3141
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: The objective of our study was to assess the diagnostic performance and associations of the direct and indirect MRI features of the metatarsophalangeal (MTP) joint that are thought to be related to tears of the plantar plate (PP) using surgical findings as the reference standard. MATERIALS AND METHODS: We retrospectively included 23 patients with symptomatic instability of lesser MTP joints who had undergone preoperative 1.5-T MRI and surgical assessment. The MRI examinations were independently assessed by two musculoskeletal radiologists. Using the surgical data as the reference standard, we calculated the sensitivity, specificity, and accuracy of each MRI feature in the detection of PP tears. Multivariate logistic regression analysis was performed to identify which MRI features were independently associated with PP tears. Interobserver reliability was assessed using kappa statistics. RESULTS: Forty-five lesser MTP joints were included. The presence of pericapsular fibrosis was highly sensitive (91.2%), specific (90.9%), and accurate (91.1%) for the diagnosis of PP tears. With a cutoff value of 0.275 cm, the PP-proximal phalanx distance had a sensitivity of 64.7%, specificity of 90.9%, and accuracy of 71.1% in diagnosing PP tears. CONCLUSION: In patients with clinical features indicating lesser MTP joint instability, some direct and indirect MRI features exhibited good to excellent diagnostic performance in detecting the presence of PP tears.
[Mh] Termos MeSH primário: Artropatias/diagnóstico por imagem
Imagem por Ressonância Magnética/métodos
Metatarsalgia/diagnóstico por imagem
Articulação Metatarsofalângica/diagnóstico por imagem
Articulação Metatarsofalângica/lesões
Placa Plantar/diagnóstico por imagem
Placa Plantar/lesões
[Mh] Termos MeSH secundário: Adulto
Feminino
Seres Humanos
Aumento da Imagem/métodos
Artropatias/cirurgia
Masculino
Metatarsalgia/cirurgia
Articulação Metatarsofalângica/cirurgia
Meia-Idade
Variações Dependentes do Observador
Placa Plantar/cirurgia
Estudos Retrospectivos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170803
[Lr] Data última revisão:
170803
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170602
[St] Status:MEDLINE
[do] DOI:10.2214/AJR.16.17276


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[PMID]:28399657
[Au] Autor:Phisitkul P; Hosuru Siddappa V; Sittapairoj T; Goetz JE; Den Hartog BD; Femino JE
[Ad] Endereço:1 Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA.
[Ti] Título:Cadaveric Evaluation of Dorsal Intermetatarsal Approach for Plantar Plate and Lateral Collateral Ligament Repair of the Lesser Metatarsophalangeal Joints.
[So] Source:Foot Ankle Int;38(7):791-796, 2017 Jul.
[Is] ISSN:1944-7876
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Access to the plantar plate has been described using either a plantar approach or an extensive dorsal approach that required complete joint destabilization and often a metatarsal osteotomy. Clinical scenarios related to plantar plate tear vary and the pathologies in early stages are frequently limited to unilateral soft tissue structures; a less invasive operative approach may be possible. A novel approach requiring a release of only the lateral collateral ligament and the lateral half of the plantar plate is presented in this cadaver model; the extent of joint exposure possible is described. The ability to place a secure suture through the lateral collateral ligament and the plantar plate was analyzed. METHODS: Nine fresh-frozen cadaveric specimens were dissected in a randomized fashion across the second to fourth metatarsophalangeal joints through the intermetatarsal space dorsally. Under distraction, soft tissue was sequentially released, including dorsal capsule, lateral collateral ligament, and the lateral half of the plantar plate. Integrity of the extensor tendons, deep transverse intermetatarsal ligament, proximal attachment of the plantar plate, and osseous structures was carefully preserved. The joint exposure was quantified after each step with sizing rods. Using a suture passer, 2-0 nonabsorbable braided sutures were passed into the lateral collateral ligament and the plantar plate, and the construct strength was measured using a tensiometer. RESULTS: Progressive increase in mean joint exposure was noted after each step of soft tissue release with the final exposure of 6 mm after release of the lateral half of the plantar plate. Joint exposures after a capsulotomy and a lateral collateral release were 3 mm and 4 mm, respectively. Under distraction, the unilateral release of soft tissue created a lateral opening of the joint while the proximal phalangeal base adducted and medially deviated. Successful suture passage was noted in all specimens that could sustain a minimum tension of 25 N without a catastrophic failure. There was no statistically significant correlation with age, sex, foot length, and rays of the specimens when joint exposure was considered. CONCLUSION: The dorsal intermetatarsal approach appeared to be feasible for access to the lateral collateral ligament and the lateral half of the plantar plate. The average joint exposure of 6 mm allowed a quality suture passage by a suture passer in both structures in all specimens without the need of a metatarsal osteotomy. CLINICAL RELEVANCE: This operative approach may be appropriate for early stages plantar plate tear when only lateral soft tissue repair is needed. This technique should not preclude conversion to a more extensile operative approach or an additional metatarsal osteotomy if needed. Applicability of this operative approach in cases with more advanced pathologies or involving only medial soft tissue structures requires further studies.
[Mh] Termos MeSH primário: Ligamentos Laterais do Tornozelo/fisiopatologia
Articulação Metatarsofalângica/cirurgia
Osteotomia/métodos
Placa Plantar/lesões
Placa Plantar/cirurgia
Cicatrização/fisiologia
[Mh] Termos MeSH secundário: Cadáver
Seres Humanos
Ligamentos Articulares
Suturas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171107
[Lr] Data última revisão:
171107
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170413
[St] Status:MEDLINE
[do] DOI:10.1177/1071100717702460


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[PMID]:28159046
[Au] Autor:Lui TH; LiYeung LL
[Ad] Endereço:Department of Orthopaedics and Traumatology, North District Hospital, 9 Po Kin Road, Sheung Shui, NT, Hong Kong Special Administrative Region. Electronic address: luithderek@yahoo.co.uk.
[Ti] Título:Modified double plantar plate tenodesis.
[So] Source:Foot Ankle Surg;23(1):62-67, 2017 Mar.
[Is] ISSN:1460-9584
[Cp] País de publicação:France
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Metatarsophalangeal joint instability of the lesser toe can cause acquired toe deformity. Plantar plate deficiency is the major pathology. Plantar plate repair can stabilize the joint but may result in iatrogenic transverse plane toe deformity in correction of claw toe deformity. Limited toe extension can be resulted after correction of crossover toe deformity by plantar plate tenodesis and extensor digitorum brevis transfer. A modification of the technique is proposed. MATERIALS AND METHODS: The clinical outcomes of 10 patients with the modified procedure performed were assessed. RESULTS: The correction was full in all toes with no recurrence. CONCLUSION: The modified technique can stabilize the metatarsophalangeal joint and correct lesser toe deformity without the need of tendon transfer, osteotomy or sophisticated instrumentation.
[Mh] Termos MeSH primário: Síndrome do Dedo do Pé em Martelo/cirurgia
Articulação Metatarsofalângica/cirurgia
Placa Plantar/cirurgia
Tenodese/métodos
[Mh] Termos MeSH secundário: Adulto
Estudos de Coortes
Feminino
Seres Humanos
Masculino
Meia-Idade
Resultado do Tratamento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171106
[Lr] Data última revisão:
171106
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170205
[St] Status:MEDLINE


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[PMID]:28109309
[Au] Autor:Duan X; Li L; Wei DQ; Liu M; Yu X; Xu Z; Long Y; Xiang Z
[Ad] Endereço:Orthopedics Department, West China Hospital, Sichuan University, #37 Guoxuexiang Street, Chengdu, 610017, Sichuan Province, China.
[Ti] Título:Role of magnetic resonance imaging versus ultrasound for detection of plantar plate tear.
[So] Source:J Orthop Surg Res;12(1):14, 2017 Jan 21.
[Is] ISSN:1749-799X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Plantar plate tears could be the reason of forefoot pain, affecting foot function. Magnetic resonance imaging (MRI) and ultrasound (US) were commonly used for the diagnosis of plantar plate tears. The decision of whether to use MRI or US carried some controversy. Our study aimed to find out the diagnostic accuracy of MRI versus US for plantar plate tears. METHODS: The database of the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, EMBASE, and relative orthopedic meetings until May 2016 were searched. Studies involved in the diagnostic detection of MRI or ultrasound for plantar plate tears with surgical criteria as the reference test were included. Data was analyzed by meta-analysis. We compared sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and summary receiver operating characteristic (sROC) plot of both MRI and US. RESULTS: Seven studies involving 246 plantar plate tears were included. The MRI showed more diagnostic accuracy than US for the detection of plantar plate tears. The sensitivity, specificity, positive likelihood ratio, and negative likelihood ratio of MRI were 95%, 54%, 2.08, and 0.08, respectively, while the same values for US were 93%, 33%, 1.20, and 0.35, respectively. And the sROC showed more superior diagnostic accuracy than the US. CONCLUSION: The current result suggests that MRI has better accuracy than US for detection of plantar plate tears.
[Mh] Termos MeSH primário: Imagem por Ressonância Magnética/normas
Placa Plantar/diagnóstico por imagem
Placa Plantar/lesões
Ruptura/diagnóstico por imagem
Ultrassonografia/normas
[Mh] Termos MeSH secundário: Ensaios Clínicos como Assunto/métodos
Ensaios Clínicos como Assunto/normas
Seres Humanos
Imagem por Ressonância Magnética/métodos
Ultrassonografia/métodos
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; META-ANALYSIS; REVIEW
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170607
[Lr] Data última revisão:
170607
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170123
[St] Status:MEDLINE
[do] DOI:10.1186/s13018-016-0507-6


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[PMID]:27888844
[Au] Autor:Nery C; Baumfeld D; Umans H; Yamada AF
[Ad] Endereço:Department of Orthopedics and Traumatology, UNIFESP - Federal University of São Paulo, São Paulo, São Paulo, Brazil; Albert Einstein Jewish Hospital, São Paulo, São Paulo, Brazil. Electronic address: caionerymd@gmail.com.
[Ti] Título:MR Imaging of the Plantar Plate: Normal Anatomy, Turf Toe, and Other Injuries.
[So] Source:Magn Reson Imaging Clin N Am;25(1):127-144, 2017 Feb.
[Is] ISSN:1557-9786
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The metatarsophalangeal (MTP) joint complex is a weight-bearing structure important to the biomechanics of the standing position, walking, shoe wearing, and sport participation. Acute dorsiflexion injury of the first MTP joint, "turf toe," is common among American football and soccer players. The first and lesser MTP joint complexes can be affected by degenerative or inflammatory arthritis, infarct, and infection. These conditions can lead to plantar plate disruption. Imaging studies help physicians to properly diagnose and treat this condition. This article reviews the anatomy, diagnostic imaging, and clinical management of injury and pathology of the first and lesser MTP joint complexes.
[Mh] Termos MeSH primário: Traumatismos do Pé/diagnóstico por imagem
Imagem por Ressonância Magnética
Placa Plantar/anatomia & histologia
Placa Plantar/diagnóstico por imagem
[Mh] Termos MeSH secundário: Seres Humanos
Placa Plantar/lesões
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170719
[Lr] Data última revisão:
170719
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161128
[St] Status:MEDLINE


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[PMID]:27881742
[Au] Autor:Fleischer AE; Klein EE; Ahmad M; Shah S; Catena F; Weil LS; Weil L
[Ad] Endereço:1 Weil Foot & Ankle Institute, Des Plaines, IL, USA.
[Ti] Título:Association of Abnormal Metatarsal Parabola With Second Metatarsophalangeal Joint Plantar Plate Pathology.
[So] Source:Foot Ankle Int;38(3):289-297, 2017 Mar.
[Is] ISSN:1944-7876
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Plantar plate pathology is common, yet it is unclear whether, and to what extent, the length of the second metatarsal contributes to this problem. METHODS: We conducted a retrospective case-control (1:2) study to examine radiographic risk factors for plantar plate tears. One hundred patients (age 55.7 ± 12.3 years) with plantar plate injuries and 200 healthy controls (age 56.3 ± 11.3 years) were included. Cases were defined as patients with nonacute, isolated, plantar plate pathology of the second metatarsophalangeal joint confirmed by intraoperative inspection at a single foot and ankle specialty practice from June 1, 2007, to January 31, 2014. Patients presenting for pain outside of the forefoot served as the control group. Controls were matched on age (±2 years), gender, and year of presentation. Weight-bearing foot x-rays were assessed for several predetermined angular relationships by a single rater. Conditional logistic regression was used to identify risk factors for plantar plate injury. RESULTS: A long second metatarsal, defined as a metatarsal protrusion index less than -4 mm, was the only significant risk factor for plantar plate pathology in both the univariate and multivariable analyses (multivariate odds ratio 2.5 [95% confidence interval 1.8 to 3.3], P = .002). CONCLUSION: We found that a long second metatarsal was a risk factor for developing second metatarsophalangeal joint plantar plate tears. This knowledge may aid foot and ankle surgeons when contemplating the need for second metatarsal shortening osteotomies (eg, Weil osteotomy) during plantar plate surgery and when deciding on the amount of shortening for second metatarsal osteotomies. LEVEL OF EVIDENCE: Level III, retrospective comparative study.
[Mh] Termos MeSH primário: Ossos do Metatarso/cirurgia
Articulação Metatarsofalângica/cirurgia
Osteotomia/métodos
Placa Plantar/fisiopatologia
[Mh] Termos MeSH secundário: Seres Humanos
Articulação Metatarsofalângica/fisiopatologia
Osteotomia/efeitos adversos
Estudos Retrospectivos
Suporte de Carga
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170919
[Lr] Data última revisão:
170919
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161125
[St] Status:MEDLINE
[do] DOI:10.1177/1071100716674671


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[PMID]:27852647
[Au] Autor:Flint WW; Macias DM; Jastifer JR; Doty JF; Hirose CB; Coughlin MJ
[Ad] Endereço:1 Orthopaedic Institute of Henderson, Henderson, NV, USA.
[Ti] Título:Plantar Plate Repair for Lesser Metatarsophalangeal Joint Instability.
[So] Source:Foot Ankle Int;38(3):234-242, 2017 Mar.
[Is] ISSN:1944-7876
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Lesser metatarsophalangeal (MTP) joint instability is a common cause of forefoot pain. Advances in operative technique and instrumentation have made it possible to anatomically treat plantar plate tears through a dorsal approach. Our goal was to evaluate the subjective, functional, and radiographic outcomes of plantar plate repair (PPR) from a dorsal approach. METHODS: A prospective case series was performed evaluating the results of PPR in 97 feet with 138 plantar plate tears. Patients underwent PPR from a dorsal approach with a Weil osteotomy. We followed patients at regular intervals for 12 months and collected data preoperatively and postoperatively with respect to visual analog scale (VAS) scores, MTP range of motion (ROM), paper pull-out test, American Orthopaedic Foot & Ankle Society (AOFAS) scores, satisfaction, and radiographic measures. RESULTS: Eighty percent of patients scored "good" to "excellent" satisfaction scores at 12 months. The mean VAS pain score preoperatively was 5.4/10, and postoperatively was 1.5/10. The mean AOFAS scores increased from 49 to 81 points following surgery. The mean MTP ROM preoperatively was 43 degrees and postoperatively 31 degrees. Forty-two percent of toes passed the paper pull out test prior to surgery and 54% at 12 months. Mean metatarsal shortening was 2.4/3.1/1.2 mm for the second, third, and fourth metatarsals, respectively. The mean MTP joint angles preoperatively were 2/4.9/-1.3 degrees and postoperatively were 7.4/9.6/0.2 degrees, respectively, for the second, third, and fourth MTP joints. CONCLUSION: We found that the plantar plate could be repaired through a dorsal approach with reliable outcomes. PPR was a viable option to anatomically restore the ligamentous support in the unstable lesser MTP joint. LEVEL OF EVIDENCE: Level IV, retrospective case series.
[Mh] Termos MeSH primário: Instabilidade Articular/cirurgia
Articulação Metatarsofalângica/cirurgia
Osteotomia/métodos
Placa Plantar
Dedos do Pé/cirurgia
[Mh] Termos MeSH secundário: Seres Humanos
Amplitude de Movimento Articular
Estudos Retrospectivos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170919
[Lr] Data última revisão:
170919
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161118
[St] Status:MEDLINE
[do] DOI:10.1177/1071100716679110


  9 / 30 MEDLINE  
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[PMID]:28095763
[Au] Autor:Soltanzadeh Z; Shaikhzadeh Najar S; Haghpanahi M; Mohajeri-Tehrani MR
[Ad] Endereço:1 Department of Textile Engineering, Yazd University, Yazd, Iran.
[Ti] Título:Effect of socks structures on plantar dynamic pressure distribution.
[So] Source:Proc Inst Mech Eng H;230(11):1043-1050, 2016 Nov.
[Is] ISSN:2041-3033
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A major purpose of investigating the plantar pressure in patients with pain or those at risk for skin injury is to reduce the pressure below metatarsal heads, specially first and second metatarsal heads. The aim of this article is to evaluate the effects of the socks structures on the changes in plantar dynamic pressure. In this study, seven socks types with different structures for the sole area were produced. The Gaitview AFA-50 system, a force plate, was used to measure the plantar dynamic pressure of 10 participants. The barefoot plantar dynamic pressure distribution was compared with the plantar dynamic pressure distribution with socks by two independent samples test on various zones of the foot and on different genders using SPSS software. Mann-Whitney tests were used to determine specific significant differences. The obtained results showed that the main trend was to redistribute the plantar dynamic pressure from the higher plantar pressure zones (toe and first through forth metatarsal bone regions) were decreased and as a result the plantar pressure toward the relatively lower pressure zones (fifth metatarsal bone and midfoot regions). In comparison with the barefoot condition, the cross miss structure reduced the mean pressure in the critical region of the foot (first metatarsal) for male and female subjects ( p < 0.05) and also the mock rib structure reduced the mean pressure for female subjects ( p < 0.05). In general, the results suggested wearing the socks because the socks make the plantar pressure redistributed from high to low plantar pressure zones. The results of this research indicated that wearing socks with cross miss and mock rib structures will reduce the mean plantar pressure values in forefoot area in comparison with the barefoot condition.
[Mh] Termos MeSH primário: Ossos do Metatarso/fisiologia
Placa Plantar/fisiologia
Sapatos
[Mh] Termos MeSH secundário: Adulto
Fenômenos Biomecânicos
Feminino
Marcha
Seres Humanos
Masculino
Pressão
Têxteis
Suporte de Carga
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170713
[Lr] Data última revisão:
170713
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170119
[St] Status:MEDLINE
[do] DOI:10.1177/0954411916671544


  10 / 30 MEDLINE  
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[PMID]:27581481
[Au] Autor:Lai A; Schache AG; Brown NA; Pandy MG
[Ad] Endereço:Department of Mechanical Engineering, University of Melbourne, Victoria 3010, Australia Neuromuscular Mechanics Laboratory, Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada V5A1S6 adrian_lai@sfu.ca.
[Ti] Título:Human ankle plantar flexor muscle-tendon mechanics and energetics during maximum acceleration sprinting.
[So] Source:J R Soc Interface;13(121), 2016 Aug.
[Is] ISSN:1742-5662
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Tendon elastic strain energy is the dominant contributor to muscle-tendon work during steady-state running. Does this behaviour also occur for sprint accelerations? We used experimental data and computational modelling to quantify muscle fascicle work and tendon elastic strain energy for the human ankle plantar flexors (specifically soleus and medial gastrocnemius) for multiple foot contacts of a maximal sprint as well as for running at a steady-state speed. Positive work done by the soleus and medial gastrocnemius muscle fascicles decreased incrementally throughout the maximal sprint and both muscles performed more work for the first foot contact of the maximal sprint (FC1) compared with steady-state running at 5 m s(-1) (SS5). However, the differences in tendon strain energy for both muscles were negligible throughout the maximal sprint and when comparing FC1 to SS5. Consequently, the contribution of muscle fascicle work to stored tendon elastic strain energy was greater for FC1 compared with subsequent foot contacts of the maximal sprint and compared with SS5. We conclude that tendon elastic strain energy in the ankle plantar flexors is just as vital at the start of a maximal sprint as it is at the end, and as it is for running at a constant speed.
[Mh] Termos MeSH primário: Tornozelo/fisiologia
Modelos Biológicos
Força Muscular/fisiologia
Músculo Esquelético/fisiologia
Placa Plantar/fisiologia
Corrida/fisiologia
Tendões/fisiologia
[Mh] Termos MeSH secundário: Aceleração
Adulto
Feminino
Seres Humanos
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171020
[Lr] Data última revisão:
171020
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160902
[St] Status:MEDLINE



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