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)


The Collapsing Foot: Challenges in Diagnosis & Treatment & The Role of the Weight-Bearing CT

Keynote speaker: Cesar de Cesar Netto

University of Iowa, Iowa City-IA

Chair: Paolo Caravaggi

IRCCS Istituto Ortopedico Rizzoli, Bologna

10:55am - 12:45pm
Room 1
Simultaneous translation available (EN-PT)


Weight-Bearing CT

Chair: Francois Lintz

International WBCT Society

Chair: Alberto Leardini

IRCCS Istituto Ortopedico Rizzoli, Bologna

12:45 - 1:15pm


1:15 - 1:20pm
Room 1


The Foundations and Evolution of sEMG Decomposition Technologies

Speaker: Steven Lindley, Ph.D.

1:20 - 2:35pm
Room 1
Simultaneous translation available (EN-PT)



Chair: Irene Davis

Harvard Medical School, Cambridge

Chair: Sarah Ridge

BYU College of Life Sciences

2:40 - 2:45pm


2:45 - 3:05pm
Room 1


HiRise: Enabling 3D Biomechanical Research for the Entire Lower Extremity

Presented by: Kevin Dibbern, PhD; Cesar de Cesar Netto, MD, PhD; Donald Anderson, PhD; Michael Willey, MD; Ruth Chimenti, DPT, PhD

Moderated by Jenna Roller, CurveBeam

3:05 - 4:05pm
Room 1
Simultaneous translation available (EN-PT)


Clinical Biomechanics II

Chair: Thanaporn Tunprasert

University of Brighton

Chair: Aoife Healy

Staffordshire University

4:05 - 4:45pm
Room 1
Simultaneous translation available (EN-PT)


The Foot Core Paradigm: Let's Think Differently about the Foot

Keynote speaker: Irene Davis

Harvard Medical School, Cambridge

Chair: Sicco Bus

University of Amsterdam

4:50 - 5:10pm
Room 1

Closing Ceremony

Isabel Sacco

Universidade de São Paulo; President of i-FAB 2021

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

The Collapsing Foot: Challenges in Diagnosis & Treatment & The Role of the Weight-Bearing CTs

Date: April 14, 2021 | Time: 10:10 - 10:50am (GMT-3)


Dr. Cesar de Cesar Netto is an Orthopaedic Surgeon specialized in Foot and Ankle surgery. He serves as an Assistant Professor at the University of Iowa, Carver College of Medicine, in the Department of Orthopaedics and Rehabilitation. He had four Clinical Fellowships in Orthopedic Foot and Ankle Surgery: University of Sao Paulo, Sao Paulo-SP, Brazil (2010); University of Alabama at Birmingham – UAB, Birmingham-AL (2016-2017); Hospital for Special Surgery – HSS, New York-NY (2017-2018); and Medstar Union Memorial Hospital, Baltimore-MD (2018-2019). In his research, Dr.de Cesar Netto specializes in Foot and Ankle Surgery Disorders and Imaging of the Foot and Ankle, with focus on Flatfoot Deformity, Weightbearing Computed Tomography and Achilles Tendinopathy.

The Collapsing Foot: Challenges in Diagnosis & Treatment & The Role of the Weight-Bearing CT

In this lecture we are going to talk about the evolution in the diagnosis, radiographic assessment and treatment of the collapsing foot and why terms such as posterior tibial tendon dysfunction and adult acquired flatfoot deformity are not enough to describe this complex three-dimensional derangement of the foot and ankle.  We will discuss preoperative, intraoperative and postoperative radiographic assessment of deformity correction, and the multiple measurements reported in the literature, as well as how the advent of weightbearing CT has changed the understanding, the staging and the treatment algorithm for the collapse of this biomechanical and anatomical masterpiece that we know as foot.

Special session

Weight-Bearing CT

Date: April 14, 2021 | Time: 10:55am - 12:45pm (GMT-3)


Dr. Francois Lintz, MD, MSc, FEBOT, is a board certified, fellowship trained, senior consultant orthopedic surgeon, specialized in the Foot and Ankle, practicing in the Center for Foot and Ankle Surgery in Union Private Hospital of Toulouse, France. His initial training was in France (Board Certification, DIU AFCP, 2007) and Britain (F&A fellowship with Pr Ian Winson, Bristol, UK, 2009). He also acts as Chair for the Scientific Committee in the French Foot and Ankle Association (AFCP) and member of the Media and Fellowship committees of the European Foot and Ankle Society (EFAS). His main focus in research has been the development of 3D-Biometric measurement tools for Weight Bearing Cone Beam CT. A cause which he serves now as Vice-President of the International WBCT Society.

Special session

Weight-Bearing CT

Date: April 14, 2021 | Time: 10:55am - 12:45pm (GMT-3)


He is Director of the Movement Analysis Laboratory, Istituto Ortopedico Rizzoli – Bologna (Italy). His initial research focused on methodological issues and clinical applications of gait analysis, including also three-dimensional videofluoroscopy, radiostereometry, and surgical navigation. He then received a DPhil at the University of Oxford on mechanics and prosthesis design of the ankle joint. He is now exploiting additive manufacturing and medical imaging for custom-design of orthotics and orthopaedic implants. He is author of 170 papers in peer-review journals (H-index 40; 9700 citations) and of 4 international patents.

He has been President of Siamoc, Technical Group 3-D Analysis of Human Movement, and Italian Digital Biomanufacturing Network. He is in the Steering Group of the International Foot & Ankle Biomechanics community (i-FAB) since the foundation, in the Research Committee of the European Foot and Ankle Society, and in the Scientific Board of the Weight Bearing CT Society. He is now President – Elect of the International Society of Biomechanics (ISB).

SPECIAL SESSION 2 - Weight-Bearing CT

The foot and ankle are subject to a highly complex mechanical demand during daily living and sports activities: any biomechanical analysis shall therefore imply weight-bearing anatomical data. Recently, Weight-Bearing low dose Cone Beam Computed Tomography has enabled to obtain 3D representations and models of the foot and ankle under physiological load in daily clinical use as well as in the lab. This is a fundamental innovation which will strengthen clinical and biomechanical analyses. This special session will discuss techniques and applications of this new technology, both in research fields and clinical settings, for diagnosis, and for planning and assessment of treatments of foot and ankle disorders. 

10:55-11:15amTechnical and Clinical aspects of WBCT based scans and analyses
Francois Lintz and Alberto Leardini
11:20-11:27amNew 3D angular measurements of foot bones in weight-bearing: the technique and preliminary clinical cases
Claudio Belvedere, Paolo Caravaggi
11:27-11:34am3D joint space width from weight bearing CT detects progressive narrowing after tibial pilon fractures
Erin McFadden, Michael Ho, Kevin Dibbern, Michael Willey, Julie Agel, Conor Kleweno, Justin Haller, Thomas Higgins, J. Lawrence Marsh, Donald D. Anderson
11:34-11:41amAnkle joint weightbearing CT three-dimensional distance maps of adult-acquired flatfoot deformity: a retrospective case-control study
Victoria Vivtcharenko, Kevin Dibbern, Shuyuan Li, Elijah Auch, Eli Schmidt, John Femino, Cesar de Cesar Netto
11:41-11:48amHigh Resolution 3D Weight Bearing Imaging of Foot & Ankle: Implications for Near Term and Long-Term
Shadpour Demehri
11:48-11:55amIn vivo changes in distal interosseous tibiofibular ligament elongation under static loads and during dynamic activities after syndesmosis repair
Stephen Canton, William Anderst, MaCalus Hogan, Tom Gale, Chukwudi Onyeukwu
11:55am-12:02pmWBCT and Achilles tendinopathy and the continued search for pain mechanisms
Ruth Chimenti, Kevin N Dibbern, Nacime S Barbachan Mansur, Cesar de Cesar Netto
12:02-12:09pmThe rotational positioning of the bones in the medial column of the foot: a weightbearing CT analysis
Eli Schmidt, Thiago Alexandre Silva, Shuyuan Li, Elijah Auch, Victoria Vivtcharenko, Nacime Mansur, Cesar de Cesar Netto
12:09-12:16pmHow important is WBCT in hallux decision
Cristian Ortiz 
12:16-12:40pmQ&A (all presentations)

ORAL SESSION 17 - Running

1:20-1:27pmAssociation between foot mobility and strength of the foot’s intrinsic muscles in recreational runners: a cross-sectional study
Antonio Carlos Ferraz de Andrade, Thiago F Santos, Eduardo B Junqueira, Paulo R P Santiago
1:27-1:34pmCan foot-ankle movement patterns be used to distinguish running experience levels?
Eneida Yuri Suda, Ricky Watari, Alessandra B Matias, Isabel C N Sacco
1:34-1:41pmDifferences in vertical stiffness and center of mass excursion between runners with a rearfoot and forefoot strike pattern
Caleb D Johnson, Irene S Davis
1:41-1:48pmEffect of a high-intensity interval training in the ankle kinematics during a treadmill protocol in amateur runners
Vitor Arpini, Bruno Bedo, Rodrigo Aquino, Carlos Augusto Kalva-Filho, Eduardo Bergonzoni, Paulo R P Santiago
1:48-1:55pmEffects of a foot-ankle exercises protocol on lower extremity kinetics and kinematics during running: results of a randomized controlled trial
Alessandra Matias, Ulisses Taddei, Paolo Caravaggi, Rafael Inoue, Raissa Thibes, Isabel Sacco
1:55-2:02pmEffects of foot-core strengthening on the lower extremity distal power output during running: results of a randomized controlled trial
Lucas Santana da Silva, Marcos Duarte, Renato Watanabe, Alessandra Matias, Ulisses Taddei, Ricky Watari, Isabel Sacco, Reginaldo Fukuchi
2:02-2:09pmMechanical risk factors for predicting stress fracture in elite runners
Andrew R Wilzman, Karen L. Troy, Michael Fredericson, Nate Wilcox-Fogel, Meagan Roche, Emily Kraus, Adam S. Tenforde

ORAL SESSION 18 - Clinical Biomechanics II

3:05-3:12pmAdaptative strategies to reduced ankle dorsiflexion range of motion
Mariana R C Aquino, Sérgio T Fonseca, Thales R Souza, Renan A Resende, Juliana M Ocarino
3:12-3:19pmAnkle dorsiflexion range of motion is related to pelvis kinematics during gait
Mariana R.C. Aquino, Renan A. Resende, Clara C. Fajardo, Suelen C.S. Martins, Sérgio T Fonseca
3:19-3:26pmIndividual differences in intrinsic ankle stiffness: their relationship to body sway and ankle torque
Tania Emi Sakanaka, Martin Lakie, Raymond F. Reynolds
3:26-3:33pmPlantar pressure patterns are associated with lower leg complaints in military recruits
Noel Keijsers, Minke Ter Stal, Niels Jonkergouw, Pieter Helmhout
3:33-3:40pmThe effect of induced joint restriction on plantar pressure distribution
Erica Bartolo

Keynote session

The Foot Core Paradigm: Let's Think Differently about the Foot

Date: April 14, 2021 | Time: 4:05 - 4:45pm (GMT-3)

Irene Davis

Professor, Department of Physical Medicine and Rehabilitation
Harvard Medical School
Director, Spaulding National Running Center

Dr. Irene Davis is the founding Director of the Spaulding National Running Center, Department of Physical Medicine and Rehabilitation, Harvard Medical School. She received her Bachelors degree in Exercise Science from the University of Massachusetts, and in Physical Therapy from the University of Florida. She earned her Masters degree in Biomechanics from the University of Virginia, and her PhD in Biomechanics from Pennsylvania State University. She is a Professor Emeritus in Physical Therapy at the University of Delaware where she served on the faculty for over 20 years.

Dr. Davis’ research has focused on the relationship between lower extremity structure, mechanics and injury. Her interest in injury mechanics extends to the development of interventions to alter these mechanics through gait retraining. She is interested in the mechanics of barefoot running and its effect on injury rates, and is a barefoot runner herself. Along with gait analysis, her research encompasses dynamic imaging and modeling. She has received funding from the Department of Defense, Army Research Office and National Institutes of Health to support her research related to stress fractures. Dr. Davis has given nearly 300 lectures both nationally and internationally and authored over 100 publications on the topic of lower extremity mechanics during running.

Dr. Davis has been active professionally in the American Physical Therapy Association, the American Society of Biomechanics, and International Society of Biomechanics. She is a Fellow of the American College of Sports Medicine, the American Society of Biomechanics, and a Catherine Worthingham Fellow of the American Physical Therapy Association. She is a past President of the American Society of Biomechanics. She has organized and coordinated international research retreats on topics of the foot and ankle, anterior cruciate ligament injuries and patellofemoral pain syndrome. She has been featured on ABC World News Tonight, Good Morning America, Discovery, the New York Times, the Wall Street Journal, Parade and Time Magazine.

The Foot Core Paradigm: Let's Think Differently about the Foot

The foot is a complex structure with 28 bones, 33 articulations and 20+ intrinsic and extrinsic muscles.  Unfortunately, due to this complexity, the foot has been simplified, sometimes as a single unit, in biomechanical models. Clinically, treatment of the foot has been focused on passive approaches such as taping, bracing, and palliative interventions, as opposed to active strengthening. The arch of the foot alone contains 10 intrinsic muscles arranged in 4 layers.  These small muscles are critical for the stability of the foot and for normal foot function. This is very much like the role of the stabilizing muscles of the lumbo-pelvic region.  Recent studies have shown that chronic support of these foot intrinsic muscles results in their weakening, while removal of chronic support results in their strengthening.  The purpose of this presentation is to discuss the importance of the strength and function of foot core muscles and their contribution to healthy foot function.  It is hoped that this will provide a greater awareness of how we, as both scientists and clinicians, can better leverage our feet.