Med Biol Eng Comput - Effects of muscle fibre shortening on the characteristics of surface motor unit potentials.

Tópicos

{ activ(1138) subject(705) human(624) }
{ spatial(1525) area(1432) region(1030) }
{ high(1669) rate(1365) level(1280) }
{ chang(1828) time(1643) increas(1301) }
{ imag(2675) segment(2577) method(1081) }
{ studi(1119) effect(1106) posit(819) }
{ network(2748) neural(1063) input(814) }
{ general(901) number(790) one(736) }
{ method(984) reconstruct(947) comput(926) }
{ case(1353) use(1143) diagnosi(1136) }
{ state(1844) use(1261) util(961) }
{ model(2656) set(1616) predict(1553) }
{ process(1125) use(805) approach(778) }
{ can(774) often(719) complex(702) }
{ imag(1057) registr(996) error(939) }
{ method(1219) similar(1157) match(930) }
{ studi(2440) review(1878) systemat(933) }
{ extract(1171) text(1153) clinic(932) }
{ method(1557) propos(1049) approach(1037) }
{ control(1307) perform(991) simul(935) }
{ care(1570) inform(1187) nurs(1089) }
{ studi(1410) differ(1259) use(1210) }
{ visual(1396) interact(850) tool(830) }
{ ehr(2073) health(1662) electron(1139) }
{ signal(2180) analysi(812) frequenc(800) }
{ analysi(2126) use(1163) compon(1037) }
{ decis(3086) make(1611) patient(1517) }
{ model(3404) distribut(989) bayesian(671) }
{ imag(1947) propos(1133) code(1026) }
{ data(1737) use(1416) pattern(1282) }
{ inform(2794) health(2639) internet(1427) }
{ system(1976) rule(880) can(841) }
{ measur(2081) correl(1212) valu(896) }
{ bind(1733) structur(1185) ligand(1036) }
{ sequenc(1873) structur(1644) protein(1328) }
{ featur(3375) classif(2383) classifi(1994) }
{ imag(2830) propos(1344) filter(1198) }
{ patient(2315) diseas(1263) diabet(1191) }
{ take(945) account(800) differ(722) }
{ motion(1329) object(1292) video(1091) }
{ assess(1506) score(1403) qualiti(1306) }
{ treatment(1704) effect(941) patient(846) }
{ surgeri(1148) surgic(1085) robot(1054) }
{ framework(1458) process(801) describ(734) }
{ problem(2511) optim(1539) algorithm(950) }
{ error(1145) method(1030) estim(1020) }
{ learn(2355) train(1041) set(1003) }
{ concept(1167) ontolog(924) domain(897) }
{ clinic(1479) use(1117) guidelin(835) }
{ algorithm(1844) comput(1787) effici(935) }
{ data(1714) softwar(1251) tool(1186) }
{ design(1359) user(1324) use(1319) }
{ model(2220) cell(1177) simul(1124) }
{ search(2224) databas(1162) retriev(909) }
{ featur(1941) imag(1645) propos(1176) }
{ howev(809) still(633) remain(590) }
{ data(3963) clinic(1234) research(1004) }
{ risk(3053) factor(974) diseas(938) }
{ perform(999) metric(946) measur(919) }
{ research(1085) discuss(1038) issu(1018) }
{ system(1050) medic(1026) inform(1018) }
{ import(1318) role(1303) understand(862) }
{ model(2341) predict(2261) use(1141) }
{ compound(1573) activ(1297) structur(1058) }
{ perform(1367) use(1326) method(1137) }
{ blood(1257) pressur(1144) flow(957) }
{ record(1888) medic(1808) patient(1693) }
{ health(3367) inform(1360) care(1135) }
{ model(3480) simul(1196) paramet(876) }
{ monitor(1329) mobil(1314) devic(1160) }
{ research(1218) medic(880) student(794) }
{ patient(2837) hospit(1953) medic(668) }
{ data(2317) use(1299) case(1017) }
{ age(1611) year(1155) adult(843) }
{ medic(1828) order(1363) alert(1069) }
{ cost(1906) reduc(1198) effect(832) }
{ group(2977) signific(1463) compar(1072) }
{ sampl(1606) size(1419) use(1276) }
{ gene(2352) biolog(1181) express(1162) }
{ data(3008) multipl(1320) sourc(1022) }
{ first(2504) two(1366) second(1323) }
{ intervent(3218) particip(2042) group(1664) }
{ time(1939) patient(1703) rate(768) }
{ patient(1821) servic(1111) care(1106) }
{ use(2086) technolog(871) perceiv(783) }
{ can(981) present(881) function(850) }
{ health(1844) social(1437) communiti(874) }
{ structur(1116) can(940) graph(676) }
{ cancer(2502) breast(956) screen(824) }
{ use(976) code(926) identifi(902) }
{ use(1733) differ(960) four(931) }
{ drug(1928) target(777) effect(648) }
{ result(1111) use(1088) new(759) }
{ implement(1333) system(1263) develop(1122) }
{ survey(1388) particip(1329) question(1065) }
{ estim(2440) model(1874) function(577) }
{ activ(1452) weight(1219) physic(1104) }
{ method(1969) cluster(1462) data(1082) }
{ method(2212) result(1239) propos(1039) }
{ detect(2391) sensit(1101) algorithm(908) }

Resumo

Traditionally, studies dealing with muscle shortening have concentrated on assessing its impact on conduction velocity, and to this end, electrodes have been located between the end-plate and tendon regions. Possible morphologic changes in surface motor unit potentials (MUPs) as a result of muscle shortening have not, as yet, been evaluated or characterized. Using a convolutional MUP model, we investigated the effects of muscle shortening on the shape, amplitude, and duration characteristics of MUPs for different electrode positions relative to the fibre-tendon junction and for different depths of the MU in the muscle (MU-to-electrode distance). It was found that the effects of muscle shortening on MUP morphology depended not only on whether the electrodes were between the end-plate and the tendon junction or beyond the tendon junction, but also on the specific distance to this junction. When the electrodes lie between the end-plate and tendon junction, it was found that (1) the muscle shortening effect is not important for superficial MUs, (2) the sensitivity of MUP amplitude to muscle shortening increases with MU-to-electrode distance, and (3) the amplitude of the MUP negative phase is not affected by muscle shortening. This study provides a basis for the interpretation of the changes in MUP characteristics in experiments where both physiological and geometrical aspects of the muscle are varied.

Resumo Limpo

tradit studi deal muscl shorten concentr assess impact conduct veloc end electrod locat endplat tendon region possibl morpholog chang surfac motor unit potenti mup result muscl shorten yet evalu character use convolut mup model investig effect muscl shorten shape amplitud durat characterist mup differ electrod posit relat fibretendon junction differ depth mu muscl mutoelectrod distanc found effect muscl shorten mup morpholog depend whether electrod endplat tendon junction beyond tendon junction also specif distanc junction electrod lie endplat tendon junction found muscl shorten effect import superfici mus sensit mup amplitud muscl shorten increas mutoelectrod distanc amplitud mup negat phase affect muscl shorten studi provid basi interpret chang mup characterist experi physiolog geometr aspect muscl vari

Resumos Similares

Med Biol Eng Comput - Conduction block of whole nerve without onset firing using combined high frequency and direct current. ( 0,869754916527661 )
Int J Neural Syst - Computational modeling of transcranial direct current stimulation in the child brain: implications for the treatment of refractory childhood focal epilepsy. ( 0,847019558413942 )
J Clin Monit Comput - Muscle relaxant use during intraoperative neurophysiologic monitoring. ( 0,844635362197931 )
Med Biol Eng Comput - Is it possible to detect dendrite currents using presently available magnetic resonance imaging techniques? ( 0,840775567362667 )
J Med Syst - The effect of an auxiliary stimulation on motor function restoration by FES. ( 0,840646733230544 )
Med Biol Eng Comput - Estimating nerve excitation thresholds to cutaneous electrical stimulation by finite element modeling combined with a stochastic branching nerve fiber model. ( 0,83395099912678 )
Comput Methods Programs Biomed - Performance optimization of current focusing and virtual electrode strategies in retinal implants. ( 0,82375530209021 )
Comput. Biol. Med. - Field distribution of epidural electrical stimulation. ( 0,820854885313028 )
Med Biol Eng Comput - Transmembrane potential generated by a magnetically induced transverse electric field in a cylindrical axonal model. ( 0,819173108660197 )
Med Biol Eng Comput - Advanced biofeedback from surface electromyography signals using fuzzy system. ( 0,810378373181902 )
Med Biol Eng Comput - Peculiarities of extracellular potentials produced by deep muscles. Part 1: single fibre potential fields. ( 0,796942042863105 )
J Clin Monit Comput - Augmentation of motor evoked potentials using multi-train transcranial electrical stimulation in intraoperative neurophysiologic monitoring during spinal surgery. ( 0,796310836828897 )
Med Biol Eng Comput - Spinal cord direct current stimulation: finite element analysis of the electric field and current density. ( 0,794988437462528 )
Comput Math Methods Med - Numerical simulations of MREIT conductivity imaging for brain tumor detection. ( 0,793674522677022 )
Med Biol Eng Comput - Comparison of spinal cord stimulation profiles from intra- and extradural electrode arrangements by finite element modelling. ( 0,792117033859763 )
Med Biol Eng Comput - Electrical stimulation for the suppression of pathological tremor. ( 0,788987943182424 )
J Clin Monit Comput - Spinal cord injury from electrocautery: observations in a porcine model using electromyography and motor evoked potentials. ( 0,785477176394518 )
Med Biol Eng Comput - Synthesis of optimal electrical stimulation patterns for functional motion restoration: applied to spinal cord-injured patients. ( 0,785229468540773 )
Comput Math Methods Med - Noninvasive measurement of conductivity anisotropy at larmor frequency using MRI. ( 0,77672062866598 )
Comput Math Methods Med - Application of computational lower extremity model to investigate different muscle activities and joint force patterns in knee osteoarthritis patients during walking. ( 0,773593714340907 )
Med Biol Eng Comput - Effect of membrane properties on skeletal muscle fiber excitability: a sensitivity analysis. ( 0,772502613319046 )
Comput. Biol. Med. - Evaluation of different stimulation and measurement patterns based on internal electrode: application in cardiac impedance tomography. ( 0,771119789298982 )
Neural Comput - Intracellular dynamics of virtual place cells. ( 0,770260804689464 )
Med Biol Eng Comput - Axial head rotation increases facet joint capsular ligament strains in automotive rear impact. ( 0,770107703093852 )
Med Biol Eng Comput - Safety of multi-channel stimulation implants: a single blocking capacitor per channel is not sufficient after single-fault failure. ( 0,769875992679317 )
Comput Methods Programs Biomed - Development/global validation of a 6-month-old pediatric head finite element model and application in investigation of drop-induced infant head injury. ( 0,769274694511752 )
Comput. Biol. Med. - Empirical modeling of renal motion for improved targeting during focused ultrasound surgery. ( 0,766499301163569 )
Int J Neural Syst - Electrophysiological responses from vagus nerve stimulation in rats. ( 0,759077300941565 )
Med Biol Eng Comput - Estimation of elbow flexion force during isometric muscle contraction from mechanomyography and electromyography. ( 0,757233939254832 )
Med Biol Eng Comput - Simulation of the complex countermovement jumping by means of a simple four-degrees-of-freedom model. ( 0,757032510591642 )
Int J Comput Assist Radiol Surg - fMRI assessment of upper extremity related brain activation with an MRI-compatible manipulandum. ( 0,756940474630875 )
Med Biol Eng Comput - The movement of a nerve in a magnetic field: application to MRI Lorentz effect imaging. ( 0,754133023406194 )
Int J Neural Syst - The effect of high and low frequency cortical stimulation with a fixed or a poisson distributed interpulse interval on cortical excitability in rats. ( 0,751464050845692 )
Comput. Biol. Med. - Muscle activity detection in electromyograms recorded during periodic movements. ( 0,749766069849037 )
Med Biol Eng Comput - The effect of local anatomy on the electric field induced by TMS: evaluation at 14 different target sites. ( 0,745006379405563 )
IEEE J Biomed Health Inform - Inverse estimation of multiple muscle activations from joint moment with muscle synergy extraction. ( 0,744466592126458 )
Comput Methods Programs Biomed - FDTD-based Transcranial Magnetic Stimulation model applied to specific neurodegenerative disorders. ( 0,741477279200273 )
Med Biol Eng Comput - The influence of skeletal muscle anisotropy on electroporation: in vivo study and numerical modeling. ( 0,739762867880206 )
Med Biol Eng Comput - Optical monitoring of neural networks evoked by focal electrical stimulation on microelectrode arrays using FM dyes. ( 0,738687542192632 )
Med Biol Eng Comput - Where does transcranial magnetic stimulation (TMS) stimulate? Modelling of induced field maps for some common cortical and cerebellar targets. ( 0,737039347346992 )
Med Biol Eng Comput - Glenohumeral stability during a hand-positioning task in previously injured shoulders. ( 0,73462167955628 )
Comput Methods Programs Biomed - A passive movement method for parameter estimation of a musculo-skeletal arm model incorporating a modified hill muscle model. ( 0,733297013176121 )
Med Biol Eng Comput - Measuring skin conductance over clothes. ( 0,726090684535398 )
Comput. Biol. Med. - Simulating a dual-array electrode configuration to investigate the influence of skeletal muscle fatigue following functional electrical stimulation. ( 0,724789096938809 )
J Clin Monit Comput - Quantification of the proportion of motor neurons recruited by transcranial electrical stimulation during intraoperative motor evoked potential monitoring. ( 0,724428072782094 )
Comput Math Methods Med - Trial-by-trial adaptation of movements during mental practice under force field. ( 0,722577604235309 )
Med Biol Eng Comput - A method for determination of muscle fiber diameter using single fiber potential (SFP) analysis. ( 0,722022012948211 )
Med Biol Eng Comput - Towards the development of a novel experimental shoulder simulator with rotating scapula and individually controlled muscle forces simulating the rotator cuff. ( 0,721337210028381 )
Comput Methods Programs Biomed - Numerical investigation of white matter anisotropic conductivity in defining current distribution under tDCS. ( 0,71843633399445 )
Comput. Biol. Med. - Shivering heat production and body fat protect the core from cooling during body immersion, but not during head submersion: a structural equation model. ( 0,715717960470607 )
Med Biol Eng Comput - Sensorimotor cortical response during motion reflecting audiovisual stimulation: evidence from fractal EEG analysis. ( 0,714617584077921 )
Comput. Aided Surg. - A biomechanical study regarding the effect of tissue harvesting from the thorax on its movement during inspiration. ( 0,711411288398209 )
Comput Math Methods Med - Spreading out muscle mass within a Hill-type model: a computer simulation study. ( 0,711223962004137 )
Comput Math Methods Med - An approach for simulation of the muscle force modeling it by summation of motor unit contraction forces. ( 0,710909854594173 )
Med Biol Eng Comput - Enhanced regeneration of rabbit mandibular defects through a combined treatment of electrical stimulation and rhBMP-2 application. ( 0,709148450541942 )
IEEE J Biomed Health Inform - Effect of cadence regulation on muscle activation patterns during robot assisted gait: a dynamic simulation study. ( 0,707729289257799 )
Comput. Biol. Med. - Simulation of the microscopic process during initiation of stent thrombosis. ( 0,70717610877936 )
J Clin Monit Comput - Increases in voltage may produce false-negatives when using transcranial motor evoked potentials to detect an isolated nerve root injury. ( 0,700633096492047 )
Med Biol Eng Comput - Dynamics of magnetic particles in cylindrical Halbach array: implications for magnetic cell separation and drug targeting. ( 0,694798432121732 )
Comput Math Methods Med - Dynamic variability of isometric action tremor in precision pinching. ( 0,694629274609169 )
Int J Neural Syst - A new linear muscle fiber model for neural control of saccades. ( 0,693525766339487 )
Med Biol Eng Comput - Protegemed2: an extended platform based on RFID to identify EME and improve the detection of microshocks. ( 0,691971080608915 )
Comput Math Methods Med - Investigation of innervation zone shift with continuous dynamic muscle contraction. ( 0,689385733626954 )
Comput. Biol. Med. - Classification algorithms for the identification of structural injury in TBI using brain electrical activity. ( 0,687980397011559 )
Comput Methods Programs Biomed - Hierarchical pose estimation for human gait analysis. ( 0,686333689757533 )
Med Biol Eng Comput - Cranial translation of the humeral head on radiographs in rotator cuff tear patients: the modified active abduction view. ( 0,682439781650864 )
Med Biol Eng Comput - Low intensity microwave radiation as modulator of the L-lactate dehydrogenase activity. ( 0,681133694763987 )
Methods Inf Med - Slow adaptation of ventricular repolarization as a cause of arrhythmia? ( 0,6732257699134 )
IEEE J Biomed Health Inform - sEMG-based joint force control for an upper-limb power-assist exoskeleton robot. ( 0,672914523343133 )
Neural Comput - Spine head calcium as a measure of summed postsynaptic activity for driving synaptic plasticity. ( 0,670344640007588 )
Med Biol Eng Comput - Influence of the instrumented force shoe on gait pattern in patients with osteoarthritis of the knee. ( 0,670038510268747 )
J Clin Monit Comput - The influence of gender, hand dominance, and upper extremity length on motor evoked potentials. ( 0,669898350142526 )
Int J Neural Syst - Transcranial magnetic stimulation (TMS) modulates epileptiform discharges in patients with frontal lobe epilepsy: a preliminary EEG-TMS study. ( 0,669687656353248 )
Comput. Biol. Med. - Modeling action potential generation during single and dual electrode stimulation of CA3 axons in hippocampal slice. ( 0,668877270960972 )
Med Biol Eng Comput - Deformation and pressure propagation in deep tissue during mechanical painful pressure stimulation. ( 0,668733411340903 )
Comput Math Methods Med - Three-dimensional lower extremity joint loading in a carved ski and snowboard turn: a pilot study. ( 0,665025206894381 )
Int J Med Robot - Mechatronic assistant system for dental drill handling. ( 0,662544252444097 )
Med Biol Eng Comput - Comfort of two shoulder actuation mechanisms for arm therapy exoskeletons: a comparative study in healthy subjects. ( 0,661601925722593 )
Comput. Biol. Med. - Enhancement of neural stochastic firing in cochlear implant stimulation by the addition of noise: a computational study of the influence of stimulation settings and spontaneous activity. ( 0,659947206335155 )
Comput Methods Programs Biomed - Matlab-based interface for the simultaneous acquisition of force measures and Doppler ultrasound muscular images. ( 0,657986082840743 )
Med Biol Eng Comput - A real-time system for biomechanical analysis of human movement and muscle function. ( 0,653360906259125 )
Comput Math Methods Med - The application of computer musculoskeletal modeling and simulation to investigate compressive tibiofemoral force and muscle functions in obese children. ( 0,652564126589527 )
J Telemed Telecare - Organizational factors associated with the use of telehospice. ( 0,652407717528808 )
Wiley Interdiscip Rev Syst Biol Med - Mechanisms of memory enhancement. ( 0,651463003583725 )
Comput. Biol. Med. - Anatomic and electro-physiologic connectivity of the language system: a combined DTI-CCEP study. ( 0,650357930767884 )
Comput Methods Programs Biomed - Direct effects of audio-visual stimulation on EEG. ( 0,64829148213883 )
Med Biol Eng Comput - Improved numerical approach for electrical modeling of biological cell clusters. ( 0,646861049320771 )
Med Biol Eng Comput - Experimental and model-based analysis of differences in perception of cutaneous electrical stimulation across the sole of the foot. ( 0,645478342942892 )
Med Biol Eng Comput - Higuchi's fractal dimension for analysis of the effect of external periodic stressor on electrical oscillations in the brain. ( 0,645410929268398 )
Med Biol Eng Comput - An electrooptical muscle contraction sensor. ( 0,644749245064762 )
J Clin Monit Comput - Protection of the remaining spinal cord function with intraoperative neurophysiological monitoring during paraparetic scoliosis surgery: a case report. ( 0,644132192691532 )
Comput Methods Programs Biomed - Scaling analysis of baseline dual-axis cervical accelerometry signals. ( 0,643666323769478 )
Med Biol Eng Comput - The analysis of forces needed for the suturing of elliptical skin wounds. ( 0,639090344432524 )
Neural Comput - A detailed and fast model of extracellular recordings. ( 0,631191443665513 )
Med Biol Eng Comput - Brain hypothermia induced by cold spinal fluid using a torso cooling pad: theoretical analyses. ( 0,629792714600016 )
IEEE Trans Image Process - Spatiotemporal localization and categorization of human actions in unsegmented image sequences. ( 0,622590884502748 )
J Chem Inf Model - Practical considerations for building GROMOS-compatible small-molecule topologies. ( 0,622567586153673 )
Med Biol Eng Comput - Effect of arm position on the prediction of kinematics from EMG in amputees. ( 0,621819839014346 )
Med Biol Eng Comput - Optimal chest compression in cardiopulmonary resuscitation depends upon thoracic and back support stiffness. ( 0,62101239135436 )
Int J Med Robot - A pneumatic laparoscope holder controlled by head movement. ( 0,617756007422222 )