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JOURNAL OF BIOMECHANICS Journal of Biomechanics 34 (2001) III-XV www.elsevier.com/locate/jbiomech www.JBiomech.com Volume 33 (2000) Volume 33 Number 1 January 2000 Editorial F. Guilak, M. Sato, C. M. Stanford Cell Mechanics and R. A. Brand Review Papers T. D. Brown Techniques for mechanical stimulation of cells in vitro: a review R. M. Hochmuth Micropipette aspiration of living cells C. Zhu Kinetics and mechanics of cell adhesion General Papers C. Dong and X. X. Lei Biomechanics of cell rolling: shear flow, cell-surface adhesion, and cell deformability D. Kaspar,W . Seidl, C. Neidlinger-Wilke, Dynamic cell stretching increases human osteoblast A. Ignatius and L. Claes proliferation and CICP synthesis but decreases os- teocalcin synthesis and alkaline phosphatase activity M. Joldersma, E. H. Burger, C. M. Semeins Mechanical stress induces COX-2 mRNA expression and J. Klein-Nulend in bone cells from elderly women C. M. Stanford, F.Welsch, N. Kastner, Primary human bone cultures from older patients do G. Thomas, R. Zaharias, K. Holtman not respond at continuum levels of in vivo strain and R.A. Brand magnitudes C.T. Hung, D. Ross Henshaw, C.-B. Wang, Mitogen-activated protein kinase signaling in bovine R. L. Mauck, F. Raia, G. Palmer, P.-H. Grace articular chondrocytes in response to fluid flow does Chao, V.C. Mow, A. Ratcliffe and W.B. Valhmu not require calcium mobilization D. A. Lee, M. M. Knight, J. F. Bolton, Chondrocyte deformation within compressed agar- B. D. Idowu, M.V. Kayser and D. L. Bader ose constructs at the cellular and sub-cellular levels H. Miyazaki, ¥.H asegawa and K. Hayashi A newly designed tensile tester for cells and its application to fibroblasts Y. Cheng, C. A. Hartemink, J. H. Hartwig Three-dimensional reconstruction of the actin cytos- and C. Forbes Dewey Jr. keleton from stereo images T. Yamaguchi,Y .Y amamoto and H. Liu Computational mechanical model studies on the spontaneous emergent morphogenesis of the cultured endothelial cells M. Sato, K. Nagayama, N. Kataoka, M. Sasaki Local mechanical properties measured by atomic and K. Hane force microscopy for cultured bovine endothelial cells exposed to shear stress Volume 33 Number 2 February 2000 R. Botnar, G. Rappitsch, M. Beat Scheidegger, Hemodynamics in the carotid artery bifurcation: a D. Liepsch, K. Perktold and P. Boesiger comparison between numerical simulations and in vitro MRI measurements IV Volume Contents | Journal of Biomechanics 34 (2001) III-XV L.Q. Zhang and GW. Nuber 145 Moment distribution among human elbow extensor muscles during isometric and submaximal extension R.R. Neptune, S.A. Kautz and F.E. Zajac 155 Muscle contributions to specific biomechanical functions do not change in forward versus backward ped- aling R.R. Neptune and W. Herzog 165 Adaptation of muscle coordination to altered task mechanics during steady-state cycling A.P. Marsh, P. E. Martin and D.J. Sanderson 73 Is a joint moment-based cost function associated with preferred cycling cadence? J. lvarsson, D.C.Viano, P. Lovsund and 181 Strain relief from the cerebral ventricles during head B. Aldman impact: experimental studies on natural protection of the brain RW. Nightingale, D.L. Camacho, 191 Inertial properties and loading rates affect buckling A. J. Armstrong, J.J. Robinette and B.S. Myers modes and injury mechanisms in the cervical spine Techinical note Z.B. Gao, S. Pandya, N. Hosein, M.S. Sacks WS Bioprosthetic heart valve leaflet motion monitored and N.H.C. Hwang by dual camera stereo photogrammetry J.H. Keyak and S.A. Rossi 209 Prediction of femoral fracture load using finite element models: an examination of stress- and strain- based failure theories M. Ito, H. Akima andT . Fukunaga 215 In vivo moment arm determination using B-mode ultrasonography W. Liu and B.M. Nigg 219 A mechanical model to determine the influence of masses and mass distribution on the impact force during running R.E. Hughes 226 Effect of optimization criterion on spinal force estimates during asymmetric lifting M.J. Silva and S.R. Ulrich 231 In vitro sodium fluoride exposure decreases torsional and bending strength and increases ductility of mouse femora M.C. Tsili 235 Theoretical solutions for internal bone remodeling of diaphyseal shafts using adaptive elasticity theory D. Hawkins 241 A new instrumentation system for training rowers M.L. Knothe Tate and U. Knothe 247 An ex vivo model to study transport processes and fluid flow in loaded bone GT. Charras and R.E. Guldberg 255 Improving the local solution accuracy of large-scale digital image-based finite element analyses 261 Letter to the Editor 263 Author's Response 205 Book review Volume 33 Number 3 March 2000 B. De Wit, D. De Clercq and P. Aerts 269 Biomechanical analysis of the stance phase during barefoot and shod running Volume Contents | Journal of Biomechanics 34 (2001) III-XV V L. Cristofolini and M.Viceconti 279 Mechanical validation of whole bone composite tibia models M. Stenstrom, B. Olander, D. Lehto-Axtelius, 289 Bone mineral density and bone structure parameters J.E. Madsen, L. Nordsletten as predictors of bone strength: an analysis using and G.A. Carlsson computerized microtomography and gastrectomy-induced osteopenia in the rat P. Segers and P. Verdonck 299 Role of tapering in aortic wave reflection: hydraulic and mathematical model study M. Beek, J.H. Koolstra, L.J. van Ruijven 307 Three-dimensional finite element analysis of the hu- and T.M.G.J. van Eijden man temporomandibular joint disc S.P. Fritton, K. J.M cLeod and C.T. Rubin 317 Quantifying the strain history of bone: spatial unifor- mity and self-similarity of low-magnitude strains |.A. Anderson and J.B. Carman 327 How do changes to plate thickness, length, and face- connectivity affect femoral cancellous bone’s density and surface area? An investigation using regular cellular models G.C. Reilly and J.D. Currey 337 The effects of damage and microcracking on the impact strength of bone J.E. Novotny, B.D. Beynnon and C.E. Nichols 345 Modeling the stability of the human glenohumeral joint during external rotation J.-B. Zhang and Z.-B. Kuang J00 Study on blood constitutive parameters in different blood constitutive equations Technical notes E.K.J. Chadwick, A.C. Nicol, S. Floyd 361 A telemetry-based device to determine the force—dis- and T.G.F. Gray placement behaviour of materials in high impact loading situations K. Miller 367 Constitutive modelling of abdominal organs C.N. Maganaris 375 In vivo measurement-based estimations of the moment arm in the human tibialis anterior muscle—tendon unit RV. Baratta, M. Solomonow, G. Nguyen 381 Characterization of load—length-velocity relation- and R. DAmbrosia ships of nine different skeletal muscles Y.-C. Pai, B.E. Maki, K. Iqbal,W.E. Mcllroy 387 Thresholds for step initiation induced by support- and S.D. Perry surface translation: a dynamic’ center-of-mass model provides much better prediction than a static model Letter to the editor H. Hatze 393 Comments on ‘A multi-phase optimal control techni- que for the simulation of a human vertical jump’ Volume 33 Number 4 April 2000 F. Cassot, M. Zagzoule 395 Hemodynamic role of the circle of Willis in stenoses and J.-P. Marc-Vergnes of internal carotid arteries. An analytical solution of a linear model D.M. Stump, P.J. Watson and W.B. Fraser 407 Mathematical modelling of interwound DNA super- coils VI Volume Contents | Journal of Biomechanics 34 (2001) ITI-XV T.N. Gardner,T . Stoll, L. Marks, S. Mishra 415 The influence of mechanical stimulus on the pattern and M. Knothe Tate of tissue differentiation in a long bone fracture — an FEM study C. Orizio, RV. Baratta, B. He Zhou, 427 Force and surface mechanomyogram frequency re- M. Solomonow and A. Veicsteinas sponses in CAT gastrocnemius A.-C. Godest, C. Simonis de Cloke, M. Taylor, 435 A computational model for the prediction of total P.J. Gregson, A.J. Keane, S. Sathasivan knee replacement kinematics in the sagittal plane and P.S. Walker J.S. Stroud, S.A. Berger and D. Saloner 443 Influence of stenosis morphology on flow through severely stenotic vessels: implications for plaque rup- | ture | A. Arampatzis, A. Knicker,V . Metzler 457 Mechanical power in running: a comparison of differ- | and G.-P. Briiggemann ent approaches | D.R. Wilson, J.D. Feikes, A.B. Zavatsky 465 The components of passive knee movement are and J.J. O'Connor coupled to flexion angle M.L. Raghavan and D.A.Vorp 475 Toward a biomechanical tool to evaluate rupture po- tential of abdominal aortic aneurysm: identification of a finite strain constitutive model and evaluation of its applicability Technical notes Y.-N.Wang, C. Galiotis and D.L. Bader 483 Determination of molecular changes in soft tissues under strain using laser Raman microscopy A.M. Weinberg, I.T. Pietsch, M.B. Helm, 487 Anew kinematic model of pro- and supination of the J. Hesselbach and H. Tscherne human forearm X. Yuan and L. Ryd 493 Accuracy analysis for RSA: a computer simulation | study on 3D marker reconstruction | J.H. Keyak 499 Relationships between femoral fracture loads for | two load configurations P.H.F. Nicholson, R. Strelitzki, R.O. Clevel and 503 Scattering of ultrasound in cancellous bone: predic- | M.L. Bouxsein tions from a theoretical model Letter to the Editor Authors’ response Announcement Volume 33 Number 5 May 2000 I.C. Wright, R.R. Neptune, A.J. van den Bogert The influence of foot positioning on ankle sprains and B.M. Nigg G. Cacciola, GW.M. Peters A three-dimensional mechanical analysis of a stent- and P.J.G. Schreurs less fibre-reinforced aortic valve prosthesis W. Herzog and T.R. Leonard The history dependence of force production in mam- | malian skeletal muscle following stretch-shortening | and shortening-stretch cycles | | W. Wang 543 A critical parameter for transcapillary exchange of small solutes in countercurrent systems Volume Contents | Journal of Biomechanics 34 (2001) III-XV Vil F. Migliavacca, G. Dubini, G. Pennati, 549 Computational model of the fluid dynamics in R. Pietrabissa, R. Fumero, T.-Y. Hsia systemic-to-pulmonary shunts and M.R. de Leval H. Tohyama and K. Yasuda The effects of stress enhancement on the extracellu- lar matrix and fibroblasts in the patellar tendon G. Giakas, L.K. Stergioulas and A. VVourdas 567 Time-frequency analysis and filtering of kinematic signals with impacts using the Wigner function: accu- rate estimation of the second derivative J.R. Meakin and DW.L. Hukins 575 Effect of removing the nucleus pulposus on the deformation of the annulus fibrosus during compression of the intervertebral disc P. Ferris and P.J. Prendergast 581 Middle-ear dynamics before and after ossicular replacement E.K.J. Chadwick and A.C. Nicol 591 Elbow and wrist joint contact forces during occupa- tional pick and place activities JW. Chow, T.A. Millikan, L.G. Carlton, 601 Effect of resistance load on biomechanical character- W.-s. Chae and M.I. Morse istics of racing wheelchair propulsion over a roller system H. Graichen,T .S tammberger, H. Bonel, 609 Glenohumeral translation during active and passive K.-H. Englmeier, M. Reiser, F. Eckstein elevation of the shoulder — a 3D open-MRI study C.E. Miller and C.L.Wong 615 Trabeculated embryonic myocardium shows rapid stress relaxation and non-quasi-linear viscoelastic behavior Technical notes D.A. Steinman 623 Simulated pathline visualization of computed periodic blood flow patterns J.H.-C.Wang, J. Ryu, J.-S. Han and B. Rowen 629 A new method for the representation of articular surfaces using the influence surface theory of plates J.A. Johnson, D.A. Rath, C.E. Dunning, 635 Simulation of elbow and forearm motion in vitro using S.E. Roth and G.J.W. King a load controlled testing apparatus 641 Erratum 643 Announcement Volume 33 Number 6 June 2000 J.E. Bischoff, E.M. Arruda and K. Grosh 645 Finite element modeling of human skin using an iso- tropic, nonlinear elastic constitutive model G. Cacciola, GW.M. Peters and F.P.T. Baaijens 653 A synthetic fiber-reinforced stentless heart valve W. Herzog, T.R. Leonard and J.Z. Wu 659 The relationship between force depression following shortening and mechanical work in skeletal muscle J.S. Jurvelin, J.P. Arokoski, E.B. Hunziker 669 Topographical variation of the elastic properties of and H.J. Helminen articular cartilage in the canine knee B. Diebold, A. Delouche, A. Decesare, 677 Fluid mechanics of regurgitant jets and calculation of P. Delouche, J.-P. Guglielmi and A. Herment the effective regurgitant orifice in free or complex configurations J.-C. Sarron, C. Blondeau, A. Guillaume 685 identification of linear viscoelastic constitutive and D. Osmont models VIII Volume Contents / Journal of Biomechanics 34 (2001) III-XV D.L. van Deursena, M. Lengsfeld, 695 Mechanical effects of continuous passive motion on C.J. Snijders, J.J.M. Evers the lumbar spine in seating and R.H.M. Goossens M. Grigioni, C. Daniele, G.D Avenio 701 On the monodimensional approach to the estimation and V. Barbaro of the highest Reynolds shear stress in a turbulent flow G. Karner and K. Perktold 709 +Effect of endothelial injury and increased blood pressure on albumin accumulation in the arterial wall: a numerical study T. Shipkowitz, V.G.J. Rodgers, L.J. Frazin 717 Numerical study on the effect of secondary flow in and K.B. Chandran the human aorta on local shear stresses in abdominal | aortic branches J.H.-C.Wang, E.S. Grood, J. Florer 729 Alignment and proliferation of MC3T3 -E1 osteoblasts and R.Wenstrup in microgrooved silicone substrata subjected to cyc- lic stretching |.A.F. Stokes and M.G. Gardner-Morse 737 Strategies used to stabilize the elbow joint chal- lenged by inverted pendulum loading Technical notes N. Yoganandan, F.A. Pintar and R. Seipel 745 Experimental production of extra- and intra-articular fractures of the os calcis C.S. Howard, D.C. Blakeney, J. Medige, Functional assessment in the rat by ground reaction O.J. Moy and C.A. Peimer forces SW.S. Gussekloo, B.A.M. Janssen, 759 A single camera roentgen stereophotogrammetry M.G.Vosselman and R.G. Bout method for static displacement analysis J.T. Lysack, J.P. Dickey, G.A. Dumas and D. Yen 765 Acontinuous pure moment loading apparatus for biomechanical testing of multi-segment spine speci- mens M.L. Kaplan and J.H. Heegaard Energy-conserving impact algorithm for the heel- strike phase of gait X. Zhang, M.A. Nussbaum and D.B. Chaffin 777 Back lift versus leg lift: an index and visualization of dynamic lifting strategies A. Hreljac and R.N. Marshall 783 Algorithms to determine event timing during normal walking using kinematic data Letter to the editor Authors’ response Erratum Bulletin Volume 33 Number 7 July 2000 M. Fritz Simulating the response of a standing operator to vibration stress by means of a biomechanical model R. A. Brady, M. J. Pavol,T .M . Owings 803 Foot displacement but not velocity predict the and M. D. Grabiner outcome of a slip induced in young subjects while walking Volume Contents | Journal of Biomechanics 34 (2001) III-XV IX H.Weinans, D. R. Sumner, R. Igloria 809 Sensitivity of periprosthetic stress-shielding to load and R. N. Natarajan and the bone density—modulus relationship in sub- ject-specific finite element models F. Eckstein, B. Lemberger, T.S tammberger, Patellar cartilage deformation in vivo after static ver- K. H. Englmeiearnd M. Reiser sus dynamic loading B.-H. Zhou, R.VO. Baratta, M. Solomonow, Closed-loop control of muscle length through motor M. Zhu andY . Lu unit recruitment in load-moving conditions P. L. Cheng, A. C. Nicol and J. P. Paul Determination of axial rotation angles of limb seg- ments — a new method G.Wayne Brodland and H. H. Chen The mechanics of cell sorting and envelopment R. C.Wagenaaarnd R. E. Avan Emmerik Resonant frequencies of arms and legs identify different walking patterns S. N. Robinovitch, J. Chiu, R. Sandler Impact severity in self-initiated sits and falls associ- and Q. Liu ates with center-of-gravity excursion during descent W. Liu and M. E. Maitland The effect of hamstring muscle compensation for anterior laxity in the ACL-deficient knee during gait |. Sevostianov and M. Kachanov Impact of the porous microstructure on the overall elastic properties of the osteonal cortical bone Technical notes B. C. Fleming, G. D. Peura and B. D. Beynnon Factors influencing the output of an implantable force transducer S. G. Zachariah and J. E. Sanders Finite element estimates of interface stress in the trans-tibial prosthesis using gap elements are different from those using automated contact Y.Y ¥.D haher, S. L. Delp and W. Z. Rymer The use of basis functions in modelling joint articular surfaces: application to the knee joint Announcement Index Volume 33 Number 8 August 2000 J. A.Vilensky and J. A. Cook Do quadrupeds require a change in trunk posture to walk backward? H.-D. Lee, E. Suter and W. Herzog Effects of speed and distance of muscle shortening on force depression during voluntary contractions M. Suzuki, Y.Y amazaki and K. Matsunami Simplified dynamics model of planar two-joint arm movements N. J. Mansfield and M. J. Griffin Non-linearities in apparent mass and transmissibility during exposure to whole-body vertical vibration W. M. Murray,T . S. Buchanan and S. L. Delp The isometric functional capacity of muscles that cross the elbow S. J. Ferguson, J. T. Bryant, R. Ganz and K. Ito The influence of the acetabular labrum on hip joint cartilage consolidation: a poroelastic finite element model Ch. Ament and E. P. Hofer A fuzzy logic model of fracture healing X Volume Contents | Journal of Biomechanics 34 (2001) III-XV J. C. Martin, N. A. Brown, F. C. Anderson 969 A governing relationship for repetitive muscular con- and W.W. Spirduso traction S. Z. Zhao, X.Y. Xu, A. D. Hughes, S. A. Thom, 975 Blood flow and vessel mechanics in a physiologically A.V. Stanton, B. Ariff and Q. Long realistic model of a human carotid arterial bifurcation E.V. Biryukova, A. Roby-Brami, A. A. Frolov 985 Kinematics of human arm reconstructed from spatial and M. Mokhtari , tracking system recordings A. J.Ward-Smith and P. F. Radford 997 Investigation of the kinetics of anaerobic metabolism by analysis of the performance of elite sprinters B. Couteau,Y . Payan and S. Lavallée 1005 The mesh-matching algorithm: an automatic 3D mesh generator for finite element structures C. Bertolotti and V. Deplano 1011 Three-dimensional numerical simulations of flow through a stenosed coronary bypass L. J. van Ruijven, M. Beek, E. Donker and 1023 The accuracy of joint surface models constructed from T. M. G. J. van Eijden data obtained with an electromagnetic tracking device Technical notes S. J. Piazza and P. R. Cavanagh Measurement of the screw-home motion of the knee is sensitive to errors in axis alignment M. E.T . Willems and W.T. Stauber Force output during and following active stretches of rat plantar flexor muscles: effect of velocity of ankle rotation J. S. Day, D. J. Murdoch and G. A. Dumas Calibration of position and angular data from a mag- netic tracking device Book review MauryA . Nussbaum Talking Nets — An Oral History of Neural Networks by James A. Anderson and Edward Rosenfeld Volume 33 Number 9 September 2000 M.Wong, M. Ponticiello, V.K ovanen and Volumetric changes of articular cartilage during J. S. Jurvelin stress relaxation in unconfined compression N. K. Fowler and A. C. Nicol Interphalangeal joint and tendon forces: normal model and biomechanical consequences of surgical reconstruction A. R. Karduna, PW. McClure and Scapular kinematics: effects of altering the Euler an- L.A. Michener gle sequence of rotations S. Hirokawa and R. Tsuruno Three-dimensional deformation and stress distribution in an analytical/computational model of the anterior cruciate ligament J. De Hart, G.W. M. Peters, P. J. G. Schreurs A two-dimensional fluid—structure interaction model and F. P. T. Baaijens of the aortic value C. Gao and H. Gregersen Biomechanical and morphological properties in rat large intestine A. Rohlmann, F. Graichen and G. Bergmann Influence of load carrying on loads in internal spinal fixators R. Ait-Haddou, P. Binding and W. Herzog Theoretical considerations on cocontraction of sets of agonistic and antagonistic muscles Volume Contents | Journal of Biomechanics 34 (2001) III-XV XI E. Papa and A. Cappozzo 1113 Sit-to-stand motor strategies investigated in able- bodied young and elderly subjects L. R. Hellevik, N. Stergiopulos,T . Kiserud, 1123 A mathematical model of umbilical venous pulsation S. |. Rabben, S. H. Eik-Nes and F. Irgens Technical Notes G. C. Reilly Observations of microdamage around osteocyte la- cunae in bone Z. Pataky, L. Faravel, J. Da Silva and J.-P. Assal A new ambulatory foot pressure device for patients with sensory impairment. A system for continuous measurement of plantar pressure and a feed-back alarm M. Stokdijk, M. Biegstraaten,W . Ormel, Determining the optimal flexion—extension axis of the Y. A. de Boer, H. E. J. Veegearn d P. M. Rozing elbow in vivo — a study of interobserver and intraob- server reliability T.W. Rudy, M. Sakane, R. E. Debski and The effect of the point of application of anterior tibial S.L.-Y¥.Woo loads on human knee kinematics P. Braidotti, E.B emporad,T . D’Alessio, Tensile experiments and SEM fractography on bovine S. A. Sciuto and L. Stagni subchondral bone J. Reich and W. J. Daunicht A rigid body model of the forearm D.Vashishth, K. E. Tannearn d W. Bonfield Contribution, development and morphology of microcracking in cortical bone during crack propagation Y.-H. Chu, J. J. Elias, G. N. Duda, Stress and micromotion in the taper lock joint of a F. J. Frassica and E. Y. S. Chao modular segmental bone replacement prosthesis Literature alert Bulletin Volume 33 Number 10 October 2000 W. Herzog Editorial A. F. Huxley Cross-bridge action: present views, prospects, and unknowns P.V. Komi Stretch-shortening cycle: a powerful model to study normal and fatigued muscle G. Rau, C. Disselhorst-Klug and R. Schmidt Movement biomechanics goes upwards: from the leg to the arm T. P. Andriacchi and E. J. Alexander Studies of human locomotion: past, present and future J. J. de Koning, H. Houdijk, G. de Groot and From biomechanical theory to application in top M.F. Bobbert sports: the Klapskate story J. D. DesJardins, P. S.Walker, H. Haider and The use of a force-controlled dynamic knee simulator J. Perry to quantify the mechanical performance of total knee replacement designs during functional activity J.W. Blaszczyk, F. Prince, M. Raiche and Effect of ageing and vision on limb load asymmetry R. Hebert during quiet stance XII Volume Contents Journal of Biomechanics 34 (2001) III-XV Y. Kawakami and R. L. Lieber Interaction between series compliance and sarcomere kinetics determines internal sarcomere shortening during fixed-end contraction H. |. Andersson, R. Halden andT . Glomsaker Effects of surface irregularities on flow resistance in differently shaped arterial stenoses F. Schade, A. Arampatzis Influence of different approaches for calculating the and G.-P. Bruggemann athlete’s mechanical energy on energetic parameters in the pole vault J. B. Dingwell, J. P. Cusumano, D. Sternad Slower speeds in patients with diabetic neuropathy and P. R. Cavanagh lead to improved local dynamic stability of continuous overground walking X. Yuan, L. Ryd and R. Huiskes Wear particle diffusion and tissue differentiation in TKA implant fibrous interfaces J. J.Wentzel, D. M.Whelan, Coronary stent implantation changes 3-D vessel geo- W. J. van der Giessen, metry and 3-D shear stress distribution H. M. M. van Beusekom, |. Andhyiswara, P.W. Serruys, C. J. Slager and R. Krams S. Hansson Surface roughness parameters as predictors of an- chorage strength in bone: a critical analysis D. Lee and J. Y. Chen Numerical simulation of flow fields in a tube with two branches Technical Notes A. Nagano, K. G. M. Gerritsen A sensitivity analysis of the calculation of mechanical and S. Fukashiro output through inverse dynamics: a computer simulation study G. P. Kenyon and M. H.T haut A measure of kinematic limb instability modulation by rhythmic auditory stimulation D. C.Wirtz, N. Schiffers,T . Pandorf, Critical evaluation of known bone material properties K. Radermacher, D.Weichert and R. Forst to realize anisotropic FE-simulation of the proximal femur Letter to the editor Author's response Letter to the editor Author's response Book reviews Volume 33 Number1 1 November 2000 D. M. Gillard, S. Yakovenko, T.C ameron Isometric muscle length—tension curves do not pre- and A. Prochazka dict angle—torque curves of human wrist in continuous active movements M. Bagge A model of bone adaptation as an optimization pro- cess M. R. Popovic, |. P. |. Pappas, K. Nakazawa, Stability criterion for controlling standing in able- T. Keller, M. Morari and V. Dietz bodied subjects