简介：BackgroundEnd阶段脚关节关节炎损害联合功能和病人活动性。全部的脚关节代替是一个外科的过程对待严重脚关节关节炎。SaltoTalaris解剖脚关节TM(STAA)被设计模仿正常脚关节解剖和脚关节运动的屈曲/扩展。这研究的目的是与结束阶段在gait.MethodsFive病人期间在脚关节关节功能和力学上检验STAA脚关节代替的效果单方的脚关节关节炎被招募。病人们执行了水平在2个场合上走在一个实验室背景，在以前并且在STAA脚关节手术以后的3个月。美国矫形的脚和脚关节社会(AOFAS)hindfoot分数被获得。A12照相机运动俘获系统被用来执行走的分析。步法temporo空间的参数和脚关节关节力学被评估。配对的学生t测试和非参量的Wilcoxon匹配测试被执行在在外科前和外科以后的走conditions.ResultsCompared之间的biomechanical变量检验差别到pre外科的条件，在3月post-STAA外科，病人们在AOFAShindfoot经历了更大的改进分数(p=0.0001)；STAA脚关节证明31%在脚关节关节旅行(p=0.045)增加，22%在脚关节plantarflexor时刻(p=0.075)增加，60%尽最大努力增加吸收(p=0.023)，并且68%尽最大努力增加生产(p=0.039)。病人们也证明26%在走速度(p=0.005)增加，迈进长度(p=0.013)的20%增加，在两倍支持时间(p=0.043)的15%减少，和在全部的位置的5%减少预定(p=0.055)在手术以后的.ConclusionThree月，STAA病人在脚关节功能和步法参数经历了改进。STAA脚关节在象走那样的每日的活动期间表明了改进脚关节力学。

简介：<正>Purpose:Thepurposeofthisstudywastoexamineeffectsofasportversionofasemi-rigidanklebrace(ElementTM)andasoftanklebrace（ASO）onanklebiomechanicsandgroundreactionforces（GRFs）duringadroplandingactivityinsubjectswithchronicankleinstability(CADcomparedtohealthysubjectswithnohistoryofCAI.Methods:Tenhealthysubjectsand10subjectswhohadmultipleanklesprainsparticipatedinthestudyasthecontrolandunstablesubjects,respectively.TheCAIsubjectswereage,bodymassindexandgendermatchedwiththecontrolsubjects.Thearchindexandanklefunctionsofthesubjectsweremeasuredinasubjectscreeningsession.Duringthebiomechanicaltestsession,participantsperformedfivetrialsofdroplandingfrom0.6m,wearingnobrace（NB）.Element?braceandASObrace.Simultaneousrecordingofthree-dimensionalkinematic（240Hz）andGRF（1200Hz）datawereperformed.Results:TheCAIsubjectshadloweranklefunctionalsurveyscores.ThearchindexanddeformityresultsshowedgreaterarchdeformityofElementTMagainstastaticloadthaninNBandASOduetogreaterinitialarchpositionheldbythebrace.CAIparticipantshadgreatereversionvelocitythanhealthycontrols.TheASObracereducedthefirstpeakverticalGRFwhereasElementTMincreased2ndpeakverticalGRF.ElementTMbracereducedeversionrangeofmotion（ROM）andpeakeversionvelocitycomparedtoNBandASO.Inaddition,ElementTMreduceddorsiflexionROMandincreasedpeakplantarflexionmomentcomparedtoNBandASO.Conclusion:Resultsofstaticarchmeasurementsanddynamicanklemotionsuggestthattherestrictionsofferedbybothbracesareinpartduetomoredorsiflexedanklepositionsatcontact,andhigherinitialarchpositionandstifferankleforElementTM.

简介：AbstractPurpose:This study evaluated the angular kinematic and moment of the ankle and foot during shod walking and barefoot walking in individuals with unilateral chronic ankle instability (CAI).Methods:Recreational soccer players with unilateral CAI were recruited for this cross sectional study conducted between January and August 2019. A total of 40 participants were screened for eligibility but only 31 met the inclusion criteria based on the methods of Delahunt et al and Gribble et al. Except for 3 participants not attending the evaluation session, 28 participants were finally included. A three dimensional motion analysis system made up of ProReflex motion capture unit and an AMTIb Kistler force plate, embedded in the middle of nine meter walkway, were used to assess the ankle and foot angles and moment during shod walking and barefoot walking conditions. A Statistical Package for Social Sciences (version 20.0) was used to analyze data.Results:During shod walking, the ankle joint plantar-flexion range of motion (ROM) at 10% of the gait cycle (GC) and dorsiflexion ROM at 30% of the GC were significantly higher than those during barefoot walking for both feet (p = 0.001, 0.001, 0.027, and 0.036 respectively). The inversion ROM during shod walking was significantly higher than that during barefoot walking for both feet at 10% and 30% of the GC (p = 0.001. 0.001, 0.001, and 0.042 respectively). At 10% of the GC, the eversion moment was significantly higher between barefoot and shod walking for both feet (both p = 0.001). At 30% of the GC, there was no significant difference between shod and barefoot walking plantar-flexion moment of both feet (p = 0.975 and 0.763 respectively), and the eversion moment of both feet (p = 0.116 and 0.101 respectively).Conclusion:At the early stance, shod walking increases the ankle plantar-flexion and foot inversion ROM, and decreases the eversion moment for both feet in subjects with unilateral CAI. Therefore, the foot wearing condition should be considered during evaluation of ankle and foot kinematics and kinetics.

简介：<正>Inthemostrecentreportofinjurydataon15sportsfromtheU.S.NationalCollegiateAthleticAssociation(NCAA)InjurySurveillanceSystemoveraspanof16years(1988-2004),ankleligamentsprainswerethemostcommoninjury.Residualsymptomssuchasrecurrentsprains,pain,instability,andgivingwayarecommonafteraninitial,acuteligamentsprain.Chronicankleinstability(CAI)isoneofthesecommonproblems,andhasenjoyedincreasedinterestintherecentliterature.However,CAIremainsapoorly-definedandunderstoodcondition.

简介：无

简介：adidasspeedwrap护踝可以稳定穿着者的脚踝,防止受到外力的干扰。同时,即使是高速移动,它也可以紧贴脚踝,不会滑动变形,这避免了许多不必要的受伤。而当起跳落地的时候,它人体工程学的形状能帮助穿着者调整落地时脚部的角度,提高了保护性。

简介：Becauseofitspotentialapplicationsinagriculture,environmentmonitoringandsoon,wirelessundergroundsensornetwork(WUSN)hasbeenresearchedmoreandmoreextensivelyinrecentyears.ThemainandmostimportantdifferenceofWUSNtoterrestrialwirelesssensornetwork(WSN)isthechannelcharacteristics,whichdeterminesthedesignmethodologyofit.Inthispaper,thepropagationcharacterofelectromagnetic(EM)waveinthenearsurfaceWUSNisanalyzed,aswellasthepathlossmodelofitisgiven.Inaddition,theinfluenceofhuman'sankletothechannelcharacteristicsofnearsurfaceWUSNisinvestigatedbyelectromagnetictheoryanalysis,simulationandexperiment.AnovelpathlossmodelofnearsurfaceWUSNwhichtakestheinterferenceofhuman'sankleintoconsiderationisproposed.ItisverifiedthattheexistingofhumanabovetheWUSNsystemmaycauseadditionalattenuationtothesignalofnearsurfaceWUSNwhichpropagatesaslateralwavealongtheground.Moreover,therelationoftheattenuationandoperatingfrequencyisdeduced,whichgivesareferencetoextendthefrequencybandappliedinWUSN.

简介：目的:探寻下落在内翻结合跖屈表面时踝关节运动学参数和腓肠肌内侧、腓骨长肌、胫骨前肌的肌电活动情况。方法:12名运动员从30cm高度下落时3种不同条件的表面:平面、25°内翻表面、25°内翻结合25°跖屈表面,每种条件分别采集5次落地。用单因素方差分析运动学参数,同时采用3×3双因素方差分析3种肌肉的积分肌电值(p<0.05)。结果:积分肌电值结果显示不同肌肉和表面之间存在交互作用。下落于平面时胫骨前肌的肌电活动高于另两种表面。相比较平面,下落于内翻表面的最大内翻角度和角速度明显提高,但腓骨长肌的肌电活动却相似。此外,下落于内翻结合跖屈的表面,其腓肠肌的积分肌电、踝关节的跖屈角度和内翻的关节活动度明显高于25°的内翻表面。结论:与单纯的内翻表面相比,内翻结合跖屈的表面在下落时会产生更不稳定的落地状况,从而更易造成踝关节扭伤。

简介：<正>Background:Stochasticresonancestimulation(SRS)transmitssubsensoryelectricalGaussianwhitenoiseintothebodytoenhancesensorimotorfunction.Thistherapyhasimprovedstaticsinglelegbalanceinsubjectswithfunctionalankleinstability.However,theeffectofthisstimulationondynamicsinglelegbalanceisnotknown.ImprovementsindynamicsinglelegbalancewithSRSmayhaveimplicationsForenhancingfunctionalrehabilitationforankleinstability.Thus,thepurposeofthisstudywastodeterminetheeffectsofSRSondynamicsinglelegbalanceinsubjectswithfunctionalankleinstability.Methods:Thisstudywasanexperimentalresearchdesignanddatawerecollectedinasportsmedicineresearchlaboratory.Twelvesubjectswithfunctionalankleinstability(69±15kg;173±10cm;21±2years)reportedahistoryofanklesprainsandinstabilityattheanklewithphysicalactivity.Asinglelegjump-landingtestwasusedtoassessdynamicbalance.Subjectswererequiredtojumpbetween50%and55%ofthemaximalverticaljumpheight,landonasinglelegatopaforceplate,andstabilizeasquicklyaspossible.Jump-landingtestswereperformedwithandwithoutSRS.Threetrialswereperformedforeachtreatmentcondition(SRSandcontrol).Arandomizedblockdesignwasusedtodeterminetestorder.Anterior/posteriorandmedial/lateraltime-to-stabilizationwerecomputedtoassessdynamicbalance.Lessertimeindicatedbetterstability.One-tailedpairedsamplesttestswereusedforanalysis(α≤0.05).Results:SRSimprovedanterior/posteriortime-to-stabilization(stochasticresonance=1.32±0.31s,control=1.74±0.80s,p=0.03),butdidnotenhancemedial/lateraltime-to-stabilization(stochasticresonance=1.95±0.40s,control=1.92±0.48s,p=0.07).Conclusion:CliniciansmightuseSRStofacilitatebalanceimprovementswithsagittalplanedynamicsinglelegbalanceexercisesthatpatientsmaynotbeabletoperformotherwise.

简介：Objective:Toobserveclinicaltherapeuticeffectsofelectroacupuncturepluspoint-penetrationforchronicanklejointsprain.Methods:76patientswererandomlydividedintotreatmentgroup(n=43)andcontrolgroup(n=33).Inteatmentgroup,penetrationneedlingfromQiuxu(丘墟GB40)toZhaohai(照海KI6)wasperformed,combinedwithelectricalstimulationfor30min.PatientsofcontrolgroupwereorderedtotakeAntinfan(50mg,b.I.d.),supplementedwithlocalexternalapplicationofVotalincream(b.I.d.).After14treatments(twocourses),thetherapeuticeffectwasassessed.Results:Followingtwocoursesoftreatment,ofthe43casesand33casesintreatmentandcontrolgroups,33(76.7%)and15(45.5%)werecured,4(9.3%)and7(21.2%)hadmarkedimprovementintheirsymptoms,3(7.0%)and2(6.1%)hadimprovement,and3(7.0%)and9(27.3%)failed,withtheeffectiveratesbeing93.0%and72.7%respectively.Thetherapeuticeffectoftreatmentgroupwassignificantlysuperiortothatofcontrolgroup(P<0.05).Conclusion:PenetrativeneedlingplusEAissignificantlysuperiortomedicationinrelievingchronicanklespainpatient'sclinicalsymptomsandsigns.

简介：无

简介：AbstractPurpose:Stable Weber B ankle fractures are treated by a walking boot for 6 weeks and bearing full weight through the boot as tolerated. The aim of the present study was to assess the outcome parameters of this treatment protocol, evaluate the efficacy of using the walking boot, and investigate any possible predicting factors that could affect the outcomes.Methods:All the patients with stable Weber B ankle fractures, treated in our hospital between January 2018 and December 2018, were prospectively included to the study. The patients were evaluated clinically, and the patient-reported outcome measures data were collected at the 2 and 6 weeks post-injury. Chi square, Spearman's rho test, independent samples and paired sample t-tests were used for the monovariant analysis.Results:A total of 128 consecutive patients (aged 52.2 ± 19.1 years) with supination external rotation type 2 fracture were finally included to the study. At the 2 weeks follow-up, the reported outcome measures scores were in moderate levels, but improved significantly at the 6 weeks follow-up (p < 0.0001). Multivariant analysis revealed that the ability to bear full weight without the boot at the 2 weeks after diagnosis was the only variable, which made statistically unique contribution to the foot and ankle disability index score at the 6 weeks (p = 0.005).Conclusion:Conservative treatment using a walking boot with advice to bear full weight of stable ankle Weber B fractures can bring to good functional outcomes. The ability to bear full weight without the aid of the walking boot at 2 weeks after diagnosis was the only significant predicting factor for better outcomes at 6 weeks after diagnosis.

简介：Theobjectiveofthisstudyistoinvestigatethebiomechanicalfunctionsofthehumanankle-tootcomplexduringthestancephaseofwalking.Thethree-dimensional(3D)gaitmeasurementwasconductedbyusinga3Dinfraredmulti-camerasystemandaforceplatearraytorecordtheGroundReactionForces(GRF)andsegmentalmotionssimultaneously.Theankle-footcomplexwasmodelledasafour-segmentsystem,connectedbythreejoints:talocruraljoint,sub-talarjointandmetatarsophalangealjoint.Thesubject-specificjointorientationsandlocationsweredeterminedusingafunctionaljointmethodbasedontheparticleswarmoptimisationalgorithm.TheGRFmomentarmsandjointmomentsactingaroundthetalocruralandsub-talarjointswerecalculatedovertheentirestancephase.Theestimatedtalocruralandsub-talarjointlocationsshownoticeableobliquity.Thekinematicandkineticresultsstronglysuggestthatthehumanankle-footcomplexworksasamechanicalmechanismwithtwodifferentconfigurationsinstancephaseofwalking.TheseleadtoasignificantdecreaseintheGRFmomentarmstherebyincreasingtheeffectivemechanicaladvantagesoftheankleplantarflexormuscles.Thisreconfigurablemechanismenhancesmuscleeffectivenessduringlocomotionbymodulatingthegearratiooftheankleplantarflexormusclesinstance.Thisstudyalsorevealsmanyfactorsmaycontributetothelocomotorfunctionofthehumanankle-footcomplex,whichincludenotonlyitsre-configurablestructure,butalsoitsobliquelyarrangedjoints,thecharacteristicheel-to-toeCentreofPressure(COP)motionandalsothemediallyactingGRFpattern.Althoughthehumanankle-footstructureisimmenselycomplex,itseemsthatitsconfigurationandeachconstitutivecomponentarewelltunedtomaximiselocomotorefficiencyandalsotominimiseriskofinjury.Thisresultwouldadvanceourunderstandingofthelocomotorfunctionoftheankle-footcomplex,andalsotheintrinsicdesignoftheankle-footmusculoskeletalstructure.Moreover,this

简介：AbstractBackground:Total ankle replacement (TAR) is a viable option for the treatment of end-stage ankle arthritis. In China, the INBONE-II implant is the only total ankle prosthesis approved since 2016. The purpose of this study is to report a large sample of findings for the TAR with INBONE-II prosthesis.Methods:A total of 64 patients with end-stage ankle arthritis, who underwent primary TAR using INBONE-II by the same surgeon from 2016 to 2019, at a single institution were included in this retrospective, single-center study. Clinical data, radiographic findings, survival rate, and complications were recorded and assessed pre-operatively and at the most recent follow-up.Results:A total of 64 patients were available for follow-up at least 2 years after surgery; the mean follow-up duration for clinical outcomes was 37.9 months (24–59 months), and for radiographic findings was 22.8 months (12–59 months). There were significant improvements (P < 0.01) in the American Orthopedic Foot and Ankle Society hindfoot scale, the visual analog scale for pain, and the Short Form-36. There were statistically significant differences between pre-operative and post-operative comparisons of the talar tilt angle (TT) and the tibial lateral surface angle (TLS) in the radiographic findings (TT from 4.7 ± 4.3° to 1.3 ± 1.3°, TLS from 80.4 ± 7.7° to 87.4 ± 2.3°, P < 0.01). There was no statistically significant difference in improvement of the tibial anterior surface angle (P = 0.14). Ten complications (all low grade) were recorded according to the Glazebrook classification system. The survivorship of the prosthesis was 100% (64/64).Conclusion:Patients who underwent TAR with INBONE-II prosthesis demonstrated significant improvements in all measures of pain and function as well as in radiographic findings. High survival and a low incidence of complications were observed in this study.

简介：摘要ObjectiveTo evaluate the effectiveness of radial extracorporeal shock wave therapy on ankle flexor spasticity in stroke survivors and to reveal changes in the fibroelastic components of muscle.DesignRandomized controlled trial.SettingInpatient neuro-rehabilitation clinic of a university hospital.ParticipantsStroke patients with ankle flexor spasticity.InterventionsPatients were randomized to three groups; radial extracorporeal shock wave therapy, sham, or control. Active and sham therapy were administered two sessions/week for two weeks. All patients received conventional rehabilitation.Main measuresThe primary outcome was Modified Ashworth Scale. Secondary outcomes were the Tardieu Scale and elastic properties of plantar flexor muscles assessed by elastography (strain index). All assessments were performed before, immediately after the treatment, and four weeks later at follow-up.ResultsFifty-one participants were enrolled (active therapy n＝17, sham n＝17, control n＝17). Modified Ashworth scores showed a significant decrease in the active therapy group (from 2.47±0.72 to 1.41±0.62) compared to sham (from 2.19±1.05 to 2.06±1.12) and control (from 2.06±0.85 to 2.00±0.73) groups immediately after the treatment (P<0.001). Tardieu results were also in concordance (P<0.001), however this effect was not preserved at follow-up. Elastic properties of the ankle flexors were improved in all groups at both assessments after the therapy showing significant decreases in strain index (P<0.001). However, there was no difference among the groups in terms of improvement in elastography.ConclusionRadial extracorporeal shock wave therapy has short-term anti-spastic effects on ankle flexor muscles when used as an adjunct to conventional rehabilitation.