Laboratory for Pediatric Motion Analysis and Biofeedback Rehabilitation

Dr. Simon-Henri Schless

Head, Motion Analysis and Biofeedback Laboratory and ALYN PARC PI

Our goal is to provide an evidence-based framework for improving multidisciplinary clinical care for children and adolescents with movement disorders. This will be achieved by: (1) Identifying novel and innovative techniques to quantify abnormal movement patterns, with an emphasis on the neurological physiology and joint biomechanics and (2) integrating an innovative ultrasound based advanced imaging method to quantify abnormal muscle-tendon unit function during motion, and quantify bony lever arm and spinal deformities.

Aryeh Friedman

Is a physiotherapist at the ALYN Hospital: Pediatric and Adolescent Rehabilitation Center in Jerusalem.

Mirna Dukas

Is a physiotherapist at the ALYN Hospital: Pediatric and Adolescent Rehabilitation Center in Jerusalem.

Dan Keren

Is a physiotherapist at the ALYN Hospital: Pediatric and Adolescent Rehabilitation Center in Jerusalem.

Dr. Gilad Sorek

Is a physiotherapist with a PhD from the Department of Physical Therapy, Steyer School of Health Professions, Tel Aviv University

Dr. Taly Amichai

Is a physiotherapist with a PhD from the Department of Physical Therapy, Steyer School of Health Professions, Tel Aviv University, Israel.

Maayan Pal

Is a physiotherapist at the ALYN Hospital: Pediatric and Adolescent Rehabilitation Center in Jerusalem.

Ortal Atias

Is a physiotherapist at the Donald Berman Children’s rehabilitation center (Meshi), as well as a researcher at the ALYN PARC Helmsley Research Center.

Prof. Shmuel Springer

Prof. Shmuel Springer, Dept. of Physical Therapy, University of Ariel, Ariel, Israel

Dr. Jason Friedman

Jason Friedman is an Associate Professor in the Physical Therapy Department and a member of the Sagol School of Neuroscience at Tel Aviv University.

Dr. Marije Goudriaan

VU Amsterdam, The Netherlands

Prof. Harri Piitulainen

Faculty of Sport and Health Sciences, Univ. Jyväskylä, Jyväskylä, Finland and Dept. Neuroscience and Biomedical Engineering, School of Science, Aalto Univ, Espoo, Finland

Dr. Francesco Cenni

University of Jyväskylä, Jyväskylä, Finland

Dr. Emilia Biffi

"Eugenio Medea" Institute of Scientific Hospitalization and Treatment (IRCCS) of Bosisio Parini, Italy

Sorek G, Goudriaan M, Schurr I, Schless SH. (2022) Influence of the number of muscles and strides on selective motor control during gait in individuals with cerebral palsy. 10.1016/j.jelekin.2022.102697.

Cenni F, Schless SH, Adams H, Bar-On L, Desloovere K. (2021) The reliability of measuring medial gastrocnemius muscle-tendon unit lengths during gait. Gait & Posture. 10.1016/j.gaitpost.2021.09.198

Hanssen B, De Beukelaer N, Schless SH, Cenni F, Bar-On L, Peeters N, Molenaers g, Van Campenhout A, Van den Broeck C, Desloovere K. (2021) Reliability of Processing 3-D Freehand Ultrasound Data to Define Muscle Volume and Echo-intensity in Pediatric Lower Limb Muscles with Typical Development or with Spasticity. Ultrasound in Med & Biol. 10.1016/j.ultrasmedbio.2021.04.028

Peeters N, Van Campenhout A, Hanssen B, Cenni F, Schless SH, Van den Broeck C, Desloovere K, Bar-On L. (2020) Joint and muscles assessments of the separate effects of botulinum neurotoxin-A and lower-leg casting in children with Cerebral Palsy. Frontiers in Neurology. 10.3389/fneur.2020.00210

Cenni F, Bar-On L, Monari D, Schless SH, Kalkman B, Desloovere K, Bruyninckx H. (2020) Semi-Automatic tracking of the medial gastrocnemius muscle-tendon junction using ultrasound: a validation study. Experimental Physiology. 10.1113/EP088133.

Schless SH, Cenni F, Bar-On L, Hanssen B, O’Brien T, Aertbeliën, E., Van Campenhout A, Molenaers, G. and Desloovere, K. (2019) Medial gastrocnemius volume and echo-intensity after botulinum neurotoxin A-interventions in children with spastic cerebral palsy. Dev Med Child Neurol. 10.1111/dmcn.14056.

Cenni F, Monari D, Schless SH, Aertbeliën E, Desloovere K, Bruyninckx H. Efficient image-based method for improving probe spatial calibration in 3D freehand ultrasonography. (2019) Ultrasonics. 10.1016/j.ultras.2018.11.009.

Schless SH, Cenni F, Bar-On L, Hanssen B, Goudriaan M, Papageorgiou E, Aertbeliën, E, Molenaers G and Desloovere K. (2019) Combining muscle morphology and neuromotor symptoms to explain abnormal gait at the ankle joint in cerebral palsy. Gait & Posture. 10.1016/j.gaitpost.2018.12.002.

Schless SH, Hanssen B, Cenni F, Bar-On L, Aertbeliën E, Molenaers G and Desloovere, K. (2018). Estimating medial gastrocnemius muscle volume in children with spastic cerebral palsy: a cross-sectional investigation. Dev Med Child Neurol. 10.1111/dmcn.13597

Cenni F, Bar-On L, Schless SH, Kalkman B, Aertbeliën E, Bruyninckx H, Desloovere K. (2018) Medial gastrocnemius muscle-tendon junction and fascicle lengthening across the range of motion analysed in 2D and 3D ultrasound images. Ultrasound in Med & Biol. 10.1016/j.ultrasmedbio.2018.07.012.

Bar-On L, Kalkman B, Cenni F, Schless SH, Molenaers G, Maganaris C, Bass A, Holmes G, Barton G, O’Brien T, Desloovere K (2018). The Relationship Between Medial Gastrocnemius Lengthening Properties and Stretch Reflexes in Cerebral Palsy. Frontiers in Pediatrics. 10.3389/fped.2018.00259.

Cenni F, Schless SH, Bar-On L, Aertbeliën E, Bruyninckx H, Hanssen B, Desloovere K. (2018). An innovative solution to reduce muscle deformation during ultrasonography data collection. J Biomech. 10.1016/j.jbiomech.2018.06.002

Cenni F, Schless SH, Bar-On L, Aertbeliën E, Bruyninckx H, Hanssen B, Desloovere K (2018). Reliability of a clinical 3D freehand ultrasound technique: analyses on healthy and pathological muscles. Computer Methods and Programs in Biomedicine. 10.1016/j.cmpb.2017.12.023.

Goudriaan M, Nieuwenhuys A, Schless SH, Goemans N, Molenaers G, Desloovere K (2018). A new strength assessment to evaluate the association between muscle weakness and gait pathology in children with cerebral palsy. PlosOne. doi: 10.1371/journal.pone.0191097.

Cenni F, Schless SH, Bar-On L, Molenaers G, Van Campenhout A, Aertbeliën E, Bruyninckx H, Hanssen B, Desloovere K. (2018) Can in Vivo Medial Gastrocnemius Muscle-Tendon Unit Lengths be Reliably Estimated by Two Ultrasonography Methods? A Within-Session Analysis. Ultrasound Med Biol. 10.1016/j.ultrasmedbio.2017.09.018.

van den Noort JC, Bar-On L, Aertbelien E, Bonikowski M, Braendvik SM, Brostrom EW, Buizer AI, Burridge JH, van Campenhout A, Dan B, Fleuren JF, Grunt S, Heinen F, Horemans HL, Jansen C, Kranzl A, Krautwurst BK, van der Krogt M, Lerma Lara S, Lidbeck CM, Lin JP, Martinez I, Meskers C, Metaxiotis D, Molenaers G, Patikas DA, Remy-Neris O, Roeleveld K, Shortland AP, Sikkens J, Sloot L, Vermeulen RJ, Wimmer C, Schroder AS, Schless SH, Becher JG, Desloovere K, Harlaar J. (2017) European consensus on the concepts and measurement of the pathophysiological neuromuscular responses to passive muscle stretch. European Journal of Neurology. 10.1111/ene.13322.

Nieuwenhuys A, Papageorgiou E, Schless SH, De Laet T, Molenaers G, Desloovere K. (2017) Prevalence of Joint Gait Patterns Defined by a Delphi Consensus Study Is Related to Gross Motor Function, Topographical Classification, Weakness, and Spasticity, in Children with Cerebral Palsy. Frontiers in Human Neuroscience. 2017;11:185. 10.3389/fnhum.2017.00185.

Cohen-Holzer M, Sorek G, Schless SH, Kerem J, Katz-Laurer M (2016) The influence of a constraint and bimanual training program using a variety of modalities on upper extremity functions and gait parameters among children with hemiparetic cerebral palsy: a case series. Physical and occupational therapy in paediatrics. 10.3109/01942638.2014.990549.

Cohen-Holzer M, Sorek G, Kerem J, Schless SH, Freedman R, Rotem H, Schweitzer M, Katz-Laurer M (2016) The influence of intense combined training on upper extremity function in children with unilateral cerebral palsy: does initial ability matter? Physical and occupational therapy in paediatrics. 10.3109/01942638.2105.1108379.

Cenni F, Monari D, Desloovere K, Aertbeliën E, Schless SH, Bruyninckx H. (2016) The reliability and validity of a clinical 3D freehand ultrasound system. Computer Methods and Programs in Biomedicine. 10.1016/j.cmpb.2016.09.001.

Schless SH, Desloovere K, Aertbeliën E, Molenaers G, Huenaerts C and Bar-On L (2015) The Intra- and Inter-Rater Reliability of an Instrumented Spasticity Assessment in Children with Cerebral Palsy. PLoS ONE 10(7): e0131011. 10.1371/ journal.pone.0131011.

Schless, S-H. Invited speaker, “GRAIL therapy for children, from research to clinical implementation”. MOTEK Webinar, 1st March 2022.

Schless S-H, Sorek G, Schurr I, Frankl M, Eylon S, Goudriaan M. Is motor control assessed during gait clinically important for identifying gait deviations in children with cerebral palsy? European Society of Movement Analysis in adults and Children, September 2022

Sorek G, Goudriaan M, Schurr I, Bartov O, Schless S-H. Does the timing of a brain injury impact the development of dynamic motor control during gait in children? European Society of Movement Analysis in adults and Children, September 2022

Goudriaan M, Schless S-H, Keren D, van der Krogt M, Buizer A-I, Dominici N. The effect of orthoses on selective motor control of walking in young children with cerebral palsy. European Society of Movement Analysis in adults and Children, September 2022

Sorek G, Goudriaan M, Dukas M, Schurr I, Friedman J, Schless S-H. Motor control during gait in children with CP: is walking speed important? European Society of Movement Analysis in adults and Children, September 2022

Keren D, Schurr I, Sorek G, Goudriaan M, Springer S, Schless S-H (2022) Influence of orthoses on selective motor control of the lower extremities in children and adolescents with Cerebral Palsy. 29th annual physiotherapy conference, September 2022.

Friedman A, Sorek G, Schurr I, Goudriaan M, Friedman J, Schless S-H. Does splitbelt treadmill training improve gait symmetry in adolescents with unilateral cerebral palsy. 29th annual physiotherapy conference, September 2022.

Stern N, Cohen-Holtzer M, Shlomai N, Schweitzer M, Kerem J, Schless S-H, Sorek G, Katz-Leurer M. The influence of two types of intensive training protocols on gait parameters in children with unilateral cerebral palsy. 29th annual physiotherapy conference, September 2022.

Schless, S-H. Invited speaker, "Lower limb muscle synergy analysis during gait to provide a measure of dynamic motor control”. New Children’s Hospital of Helsinki University Hospital and Faculty of Sport and Health Sciences, University of Jyväskylä, 8th November 2022

Atias O, Sorek G, Goudriaan M, Schurr I, Friedman J, Schless S-H. Does the timing of a brain injury impact the development of selective motor control during gait? 72nd Israeli Rehabilitation Science and Technology Update, December 2022.

Schless S-H, Sorek G, Schurr I, Frankl M, Eylon S, Goudriaan M. Is motor control assessed during gait clinically important for identifying gait deviations in children with cerebral palsy? 72nd Israeli Rehabilitation Science and Technology Update, December 2022.

Keren D, Schurr I, Sorek G, Goudriaan M, Springer S, Schless S-H. Influence of orthoses on selective motor control of the lower extremities in children and adolescents with Cerebral Palsy. 72nd Israeli Rehabilitation Science and Technology Update, December 2022.

Helmsley Charitable Trust

Simon-Henri Schless, Co-principal investigator, Research in the Laboratory for Pediatric Motion Analysis and Biofeedback Rehabilitation at The Helmsley Pediatric & Adolescent Rehabilitation Research Center, ALYN Hospital, funded by The Leona M. and Harry B. Helmsley Charitable Trust, 2021-2024.

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ALYN Hospital is the only rehabilitation center for children and adolescents in Israel and one of the leading facilities in the world. ALYN Hospital specializes in diagnosing and rehabilitating children coping with a wide variety of congenital and acquired physical disabilities