10:00 - 10:10am


Isabel Sacco

Universidade de São Paulo; President of i-FAB 2021

10:10 - 10:50am
Room 1
Simultaneous translation available (EN-PT)


Investigation of Human Foot Function Using Approaches in Imaging and Musculoskeletal Modeling

Keynote speaker: Michael Rainbow

Queen’s University, Kingston

Chair: Howard Hillstrom

10:50 - 11:10am
Room 1


Novel Customer Applications in Foot and Ankle

Speakers: Scott Ellis MD, Robin Queen PhD and Sicco Bus PhD

11:15am - 12:20pm
Room 1
Simultaneous translation available (EN-PT)


Foot-Ankle Modelling

Chair: Zimi Sawacha

University of Padova

Chair: Fabiola Spolaor

University of Padova

11:15am - 12:20pm
Room 2
Simultaneous translation available (EN-PT)


Orthopedics I (surgical aspects)

Chair: Elizabeth Pedersen

University of Alberta Hospital

Chair: Ana Paula Simões

Hospital Santa Casa de São Paulo

12:20 - 12:50pm


12:50 - 1:00pm
Room 1


Capturing Pediatric Natural Gait Using In-Shoe Plantar Pressure

Speaker: Michael Haley, Knowledge Transfer Partnership (KTP) Associate (Centre for Health Sciences Research, University of Salford and C. & J. Clark International, Ltd.)

1:00 - 2:15pm
Room 1
Simultaneous translation available (EN-PT)


Footwear/ Orthotics - Footwear Biomechanics Group

Chair: Sharon Dixon

University of Exeter

Chair: Carina Price

University of Salford

1:00 - 2:15pm
Room 2
Simultaneous translation available (EN-PT)



Chair: Kirsten Tulchin Francis

Texas Scottish Rite Hospital for Childrez

Chair: Cylie Williams

Monash University

2:20 - 2:30pm


2:30 - 2:40pm
Room 1


Your baropodometry system

Speaker: Daniel Camargo

2:40 - 3:35pm
Room 1
Simultaneous translation available (EN-PT)


Diabetic foot II

Chair: Claudia Giacomozzi

Italian National Institute of Health

Chair: Érica Queiroz da Silva

Universidade de São Paulo

2:40 - 3:35pm
Room 2
Simultaneous translation available (EN-PT)


Kinematics Methodological Aspects II

Chair: Amy L. Lenz

University of Utah

3:40 - 3:50pm


3:50 - 4:00pm
Room 1


4:00 - 5:05pm
Room 1
Simultaneous translation available (EN-PT)


Clinical Biomechanics I

Chair: Rosemary Dubbeldam

University of Muenster

Chair: Lena Fennen

Westfälische Wilhelms-Universität Münster

4:00 - 4:45pm
Room 2
Simultaneous translation available (EN-PT)


Orthopedics II

Chair: Ruth L. Chimenti

University of Iowa

Chair: Isabelle Van Dalen


Foot and Ankle Biomechanics Party - FABParty

In an online and interactive environment, the attendees will get together to video chat, meet colleagues from all over the world, or just enjoy the DJ’s live music.

Preliminary program – Subject to change

MCG Symposium

Symposium of the ISB Technical Group in Motor Control

Date: April 11, 2021 | Time: 10:00 am – 12:30 pm

The symposium on Motor Control in Biomechanics is a forum to foster the growing interest in scientific work that bridges the fields of Motor Control and Biomechanics. The symposium is organized by the ISB Technical Group in Motor Control (http://www.mcg.isbweb.org/) and brings together internationally renowned speakers to introduce their work on the understanding and application of motor control principles and approaches with a focus on foot and ankle biomechanics for a range of applications including Sports Medicine, Rehabilitation, Kinesiology, Modeling, and more.

Researchers and students with an interest in Biomechanics and Motor Control will have the opportunity to discover the latest developments at the intersection of these fields and discuss with experienced investigators.


Model-based comparative biomechanics and muscle function analysis of simulated crouch gait by healthy children and crouch gait in CP children

António Prieto Veloso

António Veloso is Full Professor at the University of Lisbon, since 2010. He is the Director of the PhD Program in Kinesiology at the Faculty of Human Kinetics from the University of Lisbon, also been responsible for the PhD in Biomechanics of this program since 2011 being also the director of the Biomechanics and Functional Morphology Laboratory of the University of Lisbon. He has served as Vice Dean at the Faculty of Human Kinetics of the University of Lisbon, between 2005 and 2009. Was also Head of Sports and Health Department at the same institution from 2012 until 2016.

António served as President for the Portuguese Society of Biomechanics between 2005-2009, as member of the Board of Directors for the International Society of Biomechanics in Sports for three terms between 2005-2011 and more recently served 6 years as member of the executive council of the International Society of Biomechanics where he was responsible for the programs for the ISB affiliated societies, the ISB technical groups and also the ISB EDC countries support programs.

António has published more than 200 papers in peer reviewed academic journal and in congress proceedings. His research interests include the biomechanics of human movement, where he focuses on the development of experimental methodologies, including the modelling and simulation of mechanical loads on the musculoskeletal system.

Motor control alterations in diabetic neuropathy: insights for rehabilitation strategies

Eneida Yuri Suda

Eneida Yuri Suda has a BSc (2000) in Physical Therapy with a MSc (2006) and PhD degrees (2017) in Sciences from the University of São Paulo, Brazil, with a one-year internship at Aalborg University, Denmark (2015-16). She is currently a full-time post-doctoral fellow at Laboratory of Biomechanics of Movement and Human Posture from University of São Paulo, Brazil. She has been working with research in Biomechanics since 2003, and her main research areas of interest are biomechanical analysis of the human movement and detection, processing and interpretation of surface EMG, motor control, foot-ankle biomechanics, biomechanics and rehabilitation of diabetic patients.

Motor control at the ankle joint: neuromuscular adaptations to training and injury

Marco Vaz

Dr. Marco Vaz is a Professor at the Federal University of Rio Grande do Sul, Brazil. He received his B.Sc. in Physical Education by the School of Physical Education, Physical Therapy and Dance of the same university in 1985, and his Ph.D. from the University of Calgary, Canada in 1996. He is presently a member of the World Council of Biomechanics, and has been a member of the International Society of Biomechanics Executive Council from 2009 to 2015. He has also been the President of the Brazilian Society of Biomechanics from 2011 to 2015. His current research focuses on developing a basic understanding of the Biomechanics of Human Movement, with special emphasis on neuromuscular plasticity due to increased- and decreased-use models, neuromuscular electrical stimulation and clinical models related to lower limb injuries.

Biomechanics and motor control of challenged gait in older adults

Eliane Celina Guadagnin

Dr. Eliane Celina Guadagnin completed her Ph.D. in Human Movement Sciences in 2018 from Federal University of Rio Grande do Sul (Brazil). Currently, she is a post-doctoral fellow at the Federal University of Pampa (Brazil). Her research are mainly focused on the effects of aging on gait under challenging conditions, on muscle structure, and on muscle function, and she is also interested in understanding how these parameters interact with each other and what is the influence of exercise on them.

The midfoot passive mechanical properties affect the lower limb biomechanics in weight-bearing activities

Fabrício Magalhães

Fabrício Magalhães earned a Bachelor degree in Physical Therapy from Pontifical Catholic University of Minas Gerais (PUCMG, Brazil), a Specialization in Physical Therapy with an emphasis in Sports and Therapeutic Exercises from PUCMG (Brazil), a Master degree in Sports Sciences (applied field: Sports Biomechanics) from Federal University of Minas Gerais (UFMG, Brazil), a Doctorate in Bioengineering (applied field: Biomechanics) from Università di Bologna (UNIBO, Italy), and Post-Doctoral residency in Rehabilitation Science (applied field: Motion Analysis) from UFMG (Brazil). He has experience in Biomechanics, Kinesiology, Orthopedics, Rehabilitation, Bioengineering and Sports, and currently, he is the human motion analysis laboratory’s manager at UFMG, author of dozens of articles and reviewer of some high-impacted scientific journals.

Isabel Sacco

Prof. Isabel C. N. Sacco has a Bachelor’s degree (1995), a MSc (1997) and a PhD (2001) in Physical Education by the University of Sao Paulo, São Paulo (Brazil). Her graduation and post-graduation majors focused on the diabetic neuropathy, and since then it is her main clinical and scientific expertise. Nowadays, she is an Associate Professor at the School of Medicine of the University of Sao Paulo (since 1999); 1B Research fellow of CNPq-Brazil (National Council for Scientific and Technological Development); and the head of the Laboratory of Biomechanics of Movement and Human Posture (LaBiMPH), whose main areas of research today include intelligent systems for decision making in health, Education in Health, Biomechanics and rehabilitation of diabetic and osteoarthritis patients. Prof. Sacco is currently on the editorial specialists’ board of the Brazilian Journal of Physical Therapy and serves as a reviewer of several Journals in the Biomechanics and Rehabilitation fields all over the world. Prof. Sacco coordinates and supervises research mainly related to biomechanics of human locomotion and rehabilitation of different neuromuscular pathologies, Pilates-exercise method, and casual and sport footwear. Acted as the Director of the Post Graduate Program in Rehabilitation Sciences at School of Medicine USP (2015-2019) and currently, is the vice-director. She had been honored by the Brazilian Government as one of the only 22 young (under forty years old) female Brazilian scientists in the national territory with a recognized merit, building up an academic carrier of national and international recognition with relevant scientific production and important role in the formation of human resources. Mother of Paola Sacco (17 yrs old).

Keynote session

Investigation of Human Foot Function Using Approaches in Imaging and Musculoskeletal Modeling

Date: April 13, 2021 | Time: 10:10 - 10:50am (GMT-3)

Michael Rainbow

Michael Rainbow received a Ph.D. in Biomedical Engineering (Biomechanics) in 2012 from Brown University, and completed a postdoctoral research position in the Department of Physical Medicine and Rehabilitation at Spaulding Rehabilitation Hospital – Harvard Medical School. He is currently an Assistant Professor at Queen’s University where he established the Skeletal Observation Laboratory. His research aims to understand the relationships between form, function, and dysfunction in multi-articular joint structures of the appendicular skeleton. To accomplish this, Dr. Rainbow uses a comparative approach that involves collaboration with researchers in evolutionary biology, orthopaedics, rehabilitation, computer science, exercise science, and motor control.  


What’s happening in my Achilles tendon? The effects of running in different footwear

Date: April 12, 2021 | Time: 10:10-10:50am (GMT-3)


Toni Arndt is a professor in biomechanics at the Swedish School of Sport and Health Sciences, where he is also Dean of research. Toni is President of the International Society of Biomechanics (ISB). He has a very international background with university studies in New Zealand, Australia, Germany and Sweden. Toni’s research career has predominantly been dedicated to Achilles tendon biomechanics, foot kinematics and lower leg function, both in terms of basic and applied science.

Investigation of Human Foot Function Using Approaches in Imaging and Musculoskeletal Modeling


The human foot is unique among living and extinct non-human primates. Obligate bipedalism, facilitated partly by changes in foot structure and function, is considered one of the great transformations in human evolution. The way the foot deforms at contact and recoils during push-off is presumed to be unique and the result of alterations in bone shapes, the adducted great toe, as well as the presence of a substantial aponeurosis and a medial longitudinal arch. These structures are different, reduced, or absent in other extant apes and are theorized to be evolutionary adaptations that are the result of selective pressures for habitual walking and running economy. Ideas around the requirements of efficient bipedalism and how the foot has adapted to these requirements have shaped conceptions about what makes us human and subsequently influenced approaches to treat foot pathologies, as well as prosthetic, orthotic, and shoe design.

The foot helps maintain balance, absorb shock and assists in push-off during locomotor activities. There are many theories about how and why the foot has evolved the way it has and how it functions, yet very few of the proposed form-function relationships have been tested well enough to be accepted or refuted. The purpose of this talk is to discuss our research investigating foot form and function with new approaches using state-of-the-art approaches in imaging and biomechanical modeling. These approaches may allow us to revise our understanding of how the foot contributes to bipedal locomotion.

Further Details:

There are three proposed mechanisms which are thought to provide humans with an advantage for efficient bipedal locomotion across various substrates. The first is the arch-spring model that describes use of elastic tissues, such as tendons and ligaments, to create a spring-like foot that is capable of first absorbing energy and then returning this energy through deformation and recoil of the medial longitudinal arch. This theory is consistent with evidence of other mechanisms that take advantage of elastic storage in humans and other organisms. The second is known as the windlass mechanism. The windlass is facilitated by the plantar aponeurosis – a thick band of ligamentous tissue that inserts at the calcaneus (heel bone) and spans the bottom of the foot, wrapping around the metatarsal bones and inserting on the toes. In 1954, Hicks proposed that the plantar aponeurosis essentially functions as a rigid cable, winding the aponeurosis around the metatarsal heads as the toes extend, which shortens and stiffens the arch. Finally, the human mid-foot is thought to be stiffer than most other primate species (both quadrupedal and bipedal), which reduces mid-foot break and creates a more rigid lever for force production. Mid-foot stiffness is thought to be facilitated by the transverse tarsal locking mechanism, where the axes of rotation of bones in the mid-foot move from an aligned position facilitating mobility, to a crossed orientation, effectively stiffening the foot. Recently, all three mechanisms have been questioned. Finally, other important features, such as the transverse arch have been identified as important to foot function. It is our position that a unified framework is needed to understand how the foot mechanically functions. The goal of this proposal is to establish this framework.

ORAL SESSION 9 - Foot-Ankle Modelling

11:15-11:22amDesign of dynamic foot function models: a finite element and machine learning approach
Tristan Tarrade, Maxime Llari, Dorian Salin, Michel Behr
11:22-11:29amExcessive stiffness interrupts alleviation of stress on the heel pad: Finite element analysis
Dahae Min, Hamin Lim, Haeun Yum, Taeyong Lee
11:29-11:36amFEM driven workflow for virtually optimized insole
Annamaria Guiotto, Marco Galuppo, Giorgia Sartorato, Zimi Sawacha
11:36-11:43amImplant fixation influences tibial bone strain after total ankle replacement: A finite element study
Bryony Halcrow, Ruth K Wilcox, Claire L Brockett
11:43-11:50amSearching an alternative to the triple arthrodesis for flatfoot deformity correction: A finite element analysis.
Christian Cifuentes De la Portill-, Ricardo Larrainzar-Garijo, Javier Bayod, Marco A. Martínez Bocanegra
11:50-11:57amSubject-Specific Prediction of Soft Tissue Structures In The Ankle Joint
Matthias Peiffer, Matthias Last, Emmanuel Audenaert, Arne Burssens, Sophie De Mits, Jan Victor

ORAL SESSION 10 - Orthopedics I (surgical aspects)

11:15-11:22amBiomechanical Evaluation of Arthroplasty in the First Ray of the Foot
Mario Alberto Madrid Pérez
11:22-11:29amContralateral ankle complex kinematic compensations after unilateral tibiotalar arthrodesis
Amy L. Lenz, Jennifer A. Nichols, Koren E. Roach, Rich J. Lisonbee, K. Bo Foreman, Alexej Barg, Charles L. Saltzman, Andrew E. Anderson
11:29-11:36amPercutaneous Distal Metatarsal Mini-invasive Osteotomy: Comparison between Standard versus Modified Intraosseous Approach - A Cadaveric Study
Elijah Auch, Cesar de Cesar Netto, Shuyuan Li, Fernando Martins, Victoria Vivtcharenko, Eli Schmidt, Alexandre Godoy-Santos, John Femino
11:36-11:43amThe influence of calcaneal and first ray osteotomies in the contact pressures of the ankle joint
Cesar de Cesar Netto, Danilo Ryuko Nishikawa, Pooyan Abbasi, Katrina E Bang, Niall Smyth, Nicholas Casscells, Stuart Michnick, Gao Zhengyu, Constantine Demetracopoulos, Brent Parks, Stuart Miller
11:43-11:50amThe use of three-dimensional (3D) biometric measurements to predict ddditional alignment procedures in total ankle replacement
Cesar de Cesar Netto, Alexandre Leme Godoy-Santos, Katrina E Bang, Jonathan Garfinkel, Jonathan Day, International WBCT Society, Scott Ellis, Jonathan Deland, Constantine Demetracopoulos
11:50-11:57amValidation of a biomechanical model of the human ankle joint for personalised orthopaedic treatments via a dynamic simulation approach
Daisy Ferraro, Alberto Leardini, Claudio Belvedere, Paolo Caravaggi, Maria Ruiz, Sorin Siegler

ORAL SESSION 11 - Footwear/ Orthotics - Footwear Biomechanics Group

1:00-1:07pmEffects of three types of foot orthoses on the knee joint of posterior tibialis tendon dysfunction population
Dominic, Philippe Corbeil, Étienne Belzile, Marc Bouchard, Simon Laurendeau
1:07-1:14pmInfluence of foot orthotics on fifth metatarsal strains in gait
Jeffrey W. Hoffman, Rogerio Bitar, Daniel R. Sturnick, Glenn Garrison, Constantine Demetracopoulos, Mark Drakos, M.D, Martin O’Malley
1:14-1:21pmLong-term effects of medial-wedged insoles in over-pronated feet on the lower limb kinematics during walking: preliminary results
Fabrício Anicio Magalhães, Fernanda Muniz Vieira, Caroline Kokudai Reis, Brunna Librelon Costa, Bianca Martins Lourenço, Renan Resende Alves, Renato Guilherme Trede Filho
1:21-1:28pmPrescribing custom dynamic orthoses to reduce risk of post-traumatic OA after tibial pilon fractures
Bryan D. Tanner, Jason M. Wilken, Kirsten M. Anderson, Donald D. Anderson
1:28-1:35pmThe effect of a split outsole on intrinsic foot kinematics and lower leg muscle activities during normal walking
Hamin Lim, Jihyeon Jeon, Dahae Min, Taeyong Lee
1:35-1:42pmThe effect of footwear on arch-ligament dynamics: a pilot study
Michael Pearce, Lauren Welte, Toni Arndt, Michael J Rain
1:42-1:49pmThe number of trials required to estimate a representative foot loading pattern
Shaquille Charles, Milad Zarei, Ashika Mani, Gehui Zhang, Robert Krafty, MaCalus V. Hogan, William Anderst

ORAL SESSION 12 - Pediatrics

1:00-1:07pmA preliminary analysis of plantar pressure data in infants at the onset of walking and confidently walking using pedobarographic statistical parametric mapping (pSPM)
Eleonora Montagnani, Dr Carina Price, Prof Chris Nester, Dr Stewart Morrison
1:07-1:14pmEffectiveness of children’s therapeutic stability footwear: A Delphi consensus on outcome measures
Matthew Hill, Aoife Healy, Nachiappan Chockalingam
1:14-1:21pmEffect of plantar flexor muscle strengthening on the gait of children with idiopathic toe walking: preliminary results
Liu Chiao Yi, Vanessa Gonçalves Coutinho de Oliveira, Lucas Simões Arrebola, Pedro Rizzi de Oliveira
1:21-1:28pmInvestigation of muscle strength, motor coordination and balance in children with idiopathic toe walking: analytical cross-sectional study
Vanessa Oliveira, Liu Chiao Yi, Lucas Simões Arrebola, Pedro Rizzi de Oliveira
1:28-1:35pmRedefining the Juvenile Bunion
Caitlin Hardin, Claire Shivers, Kirsten Tulchin-Francis, Chanhee Jo, Anthony I Riccio, Jacob R Zide
1:35-1:42pmSoft soled footwear has limited impact on toddler gait
Cylie Williams, Jessica Kolic, Wen Wu, Kade Paterson
1:42-1:49pmThe effect of heel height on initial contact in children
Michael Haley, Carina Price, Anmin Liu, Chris Nester

ORAL SESSION 13 - Diabetic foot II

2:40-2:47pmEMG alteration in diabetes subjects with and without neuropathy varies across different tasks: comparison among EMG activity in overground, treadmill walking and stair negotiation
Weronika Joanna Piatkowska, Fabiola Spolaor, Annamaria Guiotto, Gabriella Guarneri, Angelo Avogaro, Zimi Sawacha
2:47-2:54pmPeople with diabetes mellitus and peripheral neuropathy have limited ability to plantarflex their foot and ankle during heel rise tasks
Hyo-Jung Jeong, Michael J. Mueller, Jennifer A. Zellers, Yan Yan, Mary K. Hastings
2:54-3:01pmPlantar pressures and adherence in a combination of indoor and regular custom-made footwear for people with diabetes at high risk of foot ulceration
Jaap J. van Netten, Renske Keukenkamp, Tessa Busch-Westbroek, Sicco A. Bus
3:01-3:08pmPlantar soft tissue mechanics is different in diabetes and pre-diabetes and is related to the measures associated with hyperglycemia level
Roozbeh Naemi, Stefano Enrique Romero Gutierrez, David Allan, Juvenal Ormaechea, Evelyn Gutierrez, Jessica Casado-Pena, Sharon Anyosa-Zavaleta, Mauricio Juarez, Fanny Casado, Benjamin Castaneda Aphan, Gilmer Flores
3:08-3:15pmType II diabetes and peripheral neuropathy in older adults postural sway outcomes: Nintendo Wii balance board as a clinical tool.
Martin Vargas Matamala, Juan Guerrero-Henríquez, David Coo-Aqueveque, Francisco Salvador Sagüez

ORAL SESSION 14 - Kinematics Methodological Aspects II

2:40-2:47pmA comparison of a multi-segment foot model to a one-segment foot model during balance tasks
Lena Fennen, Rosemary Dubbeldam, Heiko Wagner
2:47-2:54pmComparison of the rigidity and forefoot – rearfoot kinetics from three forefoot tracking marker clusters during the stance phase of walking
Fabrício A Magalhães, Thales R Souza, Vanessa L Araújo, Lílian M Oliveira, Letícia P Silveira, Juliana M Ocarino, Sérgio T Fonseca
2:54-3:01pmLongitudinal plantar arch stiffness during running by different arch definitions
Ulisses Taddei, Alessandra Matias, Paolo Caravaggi, Isabel CN Sacco
3:01-3:08pmMarker placement sensitivity in the Oxford and Rizzoli Foot Models
Wouter Schallig, Josien van den Noort, Geert Streekstra, Mario Maas, Jaap Harlaar, Marjolein van der Krogt
3:08-3:15pmSubject-specific geometric definition and validation of a novel kinematic model of human hind+midfoot
Maurizio Brocato, Paolo Podio-Guidugli, Nicola Sancisi, Michele Conconi, Claudio Belvedere, Vincenzo Parenti-Castelli, Alberto Leardini

ORAL SESSION 15 - Clinical Biomechanics I

4:00-4:07pmDoes the alteration in binocular fusion modify spontaneous walking? (Pilot Study)
Pellegrini Manon, Biteau Mélanie, Paillard Thierry, Marc Janin, Bosquet Laurent
4:07-4:14pmEye-foot coordination in normal aging and mild cognitive impairment (MCI)
Andresa M. C. Germano, Daniel Schmidt, Thomas L. Milani
4:14-4:21pmIsolated gastrocnemius tightness: impact on foot diseases
Kelly Cristina Stéfani, Leonardo Moraes, Gabriel F Ferraz, Vinicius Quadros Borges
4:21-4:28pmObjective mechanical measures predict post-traumatic OA risk after intra-articular fracture of the hindfoot and ankle
Kevin N Dibbern, Karan Rao, Molly Day, Michael C Willey, J. Lawrence Marsh, Donald D. Anderson
4:28-4:35pmPlantar Irritating Stimuli. Have they the same physiological support?
Marc Janin
4:35-4:42pmTwelve weeks of eccentric training do not improve calf muscle isometric torque after Achilles tendon rupture
Emmanuel Souza da Rocha, Francesca C Sonda, Klauber D Pompeo, Jeam M Geremia, Marco A Vaz

ORAL SESSION 16 - Orthopedics II

4:00-4:07pmCoverage and Congruity Analysis of the Articulating Surfaces in the Ankle Joint
Maria Ruiz, Jordan Stole, Dhwanit Vispute, Francois Lintz, Cesar Netto, Rena Mathew, Sorin Siegler
4:07-4:14pmFunctional Implications of the Flat-Topped Talus Following Treatment of Idiopathic Clubfoot Deformity
Matthew J Siebert, Claire Shivers, Jacob R Zide, Kirsten Tulchin-Francis, Wilshaw Stevens Jr, Justine Borchard, Anthony I Riccio
4:14-4:21pmIs first ray hypermobility related to the flat foot?
Oliver J Morgan, Howard J Hillstrom, Robert Turner, Jonathan Day, Scott Ellis, Jonathan T Deland, Rajshree Hillstrom
4:21-4:28pmQuantitative analysis of talar dome morphology
Justine Borchard, Wilshaw Stevens Jr, Matthew J Siebert, Claire Shivers, Jacob R Zide, Anthony I Riccio, Kirsten Tulchin-Francis