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Kruse A, Habersack A, Weide G, Jaspers RT, Svehlik M, Tilp M. Eight weeks of proprioceptive neuromuscular facilitation stretching and static stretching do not affect muscle-tendon properties, muscle strength, and joint function in children with spastic cerebral palsy. Clin Biomech (Bristol, Avon) 2023; 107:106011. [PMID: 37329655 DOI: 10.1016/j.clinbiomech.2023.106011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 04/05/2023] [Accepted: 05/22/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND While the effect of static stretching for individuals with cerebral palsy is questionable, recent results suggest that the combination with activation seems promising to improve muscle-tendon properties and function. Therefore, this study analyzed the effects of 8-week proprioceptive neuromuscular facilitation stretching on the gastrocnemius medialis muscle-tendon properties, muscle strength, and the ankle joint in children with spastic cerebral palsy in comparison to static stretching. METHODS Initially, 24 children with spastic cerebral palsy were randomly assigned to a static stretching (10.7 ± 1.8 years) or proprioceptive neuromuscular facilitation stretching group (10.9 ± 2.6 years). Plantar flexors were manually stretched at home for 300 s and ∼ 250-270 s per day four times a week for eight weeks, respectively. Assessments of ankle joint function (e.g., range of motion), muscle-tendon properties, and isometric muscle strength were conducted using 3D motion capture, 2D ultrasound, dynamometry, and electromyography. A mixed analysis of variance was used for the statistical analysis. FINDINGS Stretching adherence was high in the proprioceptive neuromuscular facilitation stretching (93.1%) and static stretching group (94.4%). No significant changes (p > 0.05) were observed in ankle joint function, muscle-tendon properties, and isometric muscle strength after both interventions. Moreover, no differences (p > 0.05) were found between the stretching techniques. INTERPRETATION The findings support the idea that manual stretching (neither proprioceptive neuromuscular facilitation stretching nor static stretching) performed in isolation for eight weeks may not be appropriate to evoke significant changes in muscle-tendon properties, voluntary muscle strength, or joint function in children with spastic cerebral palsy. CLINICAL TRIAL REGISTRATION NUMBER NCT04570358.
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Affiliation(s)
- Annika Kruse
- Department of Biomechanics, Training and Movement Science, Institute of Human Movement Science, Sport and Health, University of Graz, Graz, Austria.
| | - Andreas Habersack
- Department of Biomechanics, Training and Movement Science, Institute of Human Movement Science, Sport and Health, University of Graz, Graz, Austria; Department of Othopaedics and Trauma, Medical University of Graz, Graz, Austria
| | - Guido Weide
- Department of Human Movement Science, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Richard T Jaspers
- Department of Human Movement Science, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Martin Svehlik
- Department of Othopaedics and Trauma, Medical University of Graz, Graz, Austria
| | - Markus Tilp
- Department of Biomechanics, Training and Movement Science, Institute of Human Movement Science, Sport and Health, University of Graz, Graz, Austria
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Boulard C, Gautheron V, Lapole T. Acute passive stretching has no effect on gastrocnemius medialis stiffness in children with unilateral cerebral palsy. Eur J Appl Physiol 2023; 123:467-477. [PMID: 36318307 DOI: 10.1007/s00421-022-05046-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 09/07/2022] [Indexed: 11/07/2022]
Abstract
PURPOSE The aim of this study was to investigate the effects of an acute high-intensity, long-duration passive stretching session of the plantar flexor muscles, on maximal dorsiflexion (DF) angle and passive stiffness at both ankle joint and gastrocnemius medialis (GM) muscle levels in children with unilateral cerebral palsy (CP). METHODS 13 children [mean age: 10 years 6 months, gross motor function classification system (GMFCS): I] with unilateral CP underwent a 5 min passive stretching session at 80% of maximal DF angle. Changes in maximal DF angle, slack angle, passive ankle joint and GM muscle stiffness from PRE- to POST-intervention were determined during passive ankle mobilization performed on a dynamometer coupled with shear wave elastography measurements (i.e., ultrasound) of the GM muscle. RESULTS Maximal DF angle and maximal passive torque were increased by 6.3° (P < 0.001; + 50.4%; 95% CI 59.9, 49.9) and 4.2 Nm (P < 0.01; + 38.9%; 95% CI 47.7, 30.1), respectively. Passive ankle joint stiffness remained unchanged (P = 0.9; 0%; 95% CI 10.6, - 10.6). GM muscle shear modulus was unchanged at maximal DF angle (P = 0.1; + 34.5%; 95% CI 44.7, 24.7) and at maximal common torque (P = 0.5; - 4%; 95% CI - 3.7, - 4.3), while it was decreased at maximal common angle (P = 0.021; - 35%; 95% CI - 11.4, - 58.5). GM slack angle was shifted in a more dorsiflexed position (P = 0.02; + 20.3%; 95% CI 22.6, 18). CONCLUSION Increased maximal DF angle can be obtained in the paretic leg in children with unilateral CP after an acute bout of stretching using controlled parameters without changes in passive stiffness at joint and GM muscle levels. CLINICAL TRIAL NUMBER NCT03714269.
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Affiliation(s)
- Clément Boulard
- Univ Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de La Motricité, EA 7424, 42023, Saint-Etienne, France. .,Department of Pediatrics Physical Medicine and Rehabilitation, Faculty of Medicine, University Hospital of Saint-Etienne, Saint-Etienne, France.
| | - Vincent Gautheron
- Univ Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de La Motricité, EA 7424, 42023, Saint-Etienne, France
| | - Thomas Lapole
- Univ Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de La Motricité, EA 7424, 42023, Saint-Etienne, France
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Hanssen B, Peeters N, Dewit T, Huyghe E, Dan B, Molenaers G, Van Campenhout A, Bar-On L, Van den Broeck C, Calders P, Desloovere K. Reliability of 3D freehand ultrasound to assess lower limb muscles in children with spastic cerebral palsy and typical development. J Anat 2023; 242:986-1002. [PMID: 36807218 PMCID: PMC10184546 DOI: 10.1111/joa.13839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/29/2022] [Accepted: 01/20/2023] [Indexed: 02/22/2023] Open
Abstract
This study investigated the reliability of 3-dimensional freehand ultrasound (3DfUS) to quantify the size (muscle volume [MV] and anatomical cross-sectional area [aCSA]), length (muscle length [ML], tendon length [TL], and muscle tendon unit length [MTUL]), and echo-intensity (EI, whole muscle and 50% aCSA), of lower limb muscles in children with spastic cerebral palsy (SCP) and typical development (TD). In total, 13 children with SCP (median age 14.3 (7.3) years) and 13 TD children (median age 11.1 (1.7) years) participated. 3DfUS scans of rectus femoris, semitendinosus, medial gastrocnemius, and tibialis anterior were performed by two raters in two sessions. The intra- and inter-rater and intra- and inter-session reliability were defined with relative and absolute reliability measures, that is, intra-class correlation coefficients (ICCs) and absolute and relative standard error of measurement (SEM and SEM%), respectively. Over all conditions, ICCs for muscle size measures ranged from 0.818 to 0.999 with SEM%s of 12.6%-1.6%. For EI measures, ICCs varied from 0.233 to 0.967 with SEM%s of 15.6%-1.7%. Length measure ICCs ranged from 0.642 to 0.999 with SEM%s of 16.0%-0.5%. In general, reliability did not differ between the TD and SCP cohort but the influence of different muscles, raters, and sessions was not constant for all 3DfUS parameters. Muscle length and muscle tendon unit length were the most reliable length parameters in all conditions. MV and aCSA showed comparable SEM%s over all muscles, where tibialis anterior MV was most reliable. EI had low-relative reliability, but absolute reliability was better, with better reliability for the distal muscles in comparison to the proximal muscles. Combining these results with earlier studies describing muscle morphology assessed in children with SCP, 3DfUS seems sufficiently reliable to determine differences between cohorts and functional levels. The applicability on an individual level, for longitudinal follow-up and after interventions is dependent on the investigated muscle and parameter. Moreover, the semitendinosus, the acquisition, and processing of multiple sweeps, and the definition of EI and TL require further investigation. In general, it is recommended, especially for longitudinal follow-up studies, to keep the rater the same, while standardizing acquisition settings and positioning of the subject.
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Affiliation(s)
- Britta Hanssen
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | - Nicky Peeters
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | - Tijl Dewit
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, Belgium
| | - Ester Huyghe
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Bernard Dan
- Inkendaal Rehabilitation Hospital, Vlezenbeek, Belgium.,Université Libre de Bruxelles, Bruxelles, Belgium
| | - Guy Molenaers
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Orthopaedic surgery, University Hospitals Leuven, Belgium
| | - Anja Van Campenhout
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Orthopaedic surgery, University Hospitals Leuven, Belgium
| | - Lynn Bar-On
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium.,Department of Rehabilitation Medicine, Amsterdam UMC, Amsterdam, The Netherlands
| | | | - Patrick Calders
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | - Kaat Desloovere
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, Belgium
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Peeters N, Hanssen B, De Beukelaer N, Vandekerckhove I, Walhain F, Huyghe E, Dewit T, Feys H, Van Campenhout A, Van den Broeck C, Calders P, Desloovere K. A comprehensive normative reference database of muscle morphology in typically developing children aged 3-18 years-a cross-sectional ultrasound study. J Anat 2023; 242:754-770. [PMID: 36650912 PMCID: PMC10093158 DOI: 10.1111/joa.13817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 01/19/2023] Open
Abstract
During childhood, muscle growth is stimulated by a gradual increase in bone length and body mass, as well as by other factors, such as physical activity, nutrition, metabolic, hormonal, and genetic factors. Muscle characteristics, such as muscle volume, anatomical cross-sectional area, and muscle belly length, need to continuously adapt to meet the daily functional demands. Pediatric neurological and neuromuscular disorders, like cerebral palsy and Duchenne muscular dystrophy, are characterized by impaired muscle growth, which requires treatment and close follow-up. Nowadays ultrasonography is a commonly used technique to evaluate muscle morphology in both pediatric pathologies and typically developing children, as it is a quick, easy applicable, and painless method. However, large normative datasets including different muscles and a large age range are lacking, making it challenging to monitor muscle over time and estimate the level of pathology. Moreover, in order to compare individuals with different body sizes as a result of age differences or pathology, muscle morphology is often normalized to body size. Yet, the usefulness and practicality of different normalization techniques are still unknown, and clear recommendations for normalization are lacking. In this cross-sectional cohort study, muscle morphology of four lower limb muscles (medial gastrocnemius, tibialis anterior, the distal compartment of the semitendinosus, rectus femoris) was assessed by 3D-freehand ultrasound in 118 typically developing children (mean age 10.35 ± 4.49 years) between 3 and 18 years of age. The development of muscle morphology was studied over the full age range, as well as separately for the pre-pubertal (3-10 years) and pubertal (11-18 years) cohorts. The assumptions of a simple linear regression were checked. If these assumptions were fulfilled, the cross-sectional growth curves were described by a simple linear regression equation. Additional ANCOVA analyses were performed to evaluate muscle- or gender-specific differences in muscle development. Furthermore, different scaling methods, to normalize muscle morphology parameters, were explored. The most appropriate scaling method was selected based on the smallest slope of the morphology parameter with respect to age, with a non-significant correlation coefficient. Additionally, correlation coefficients were compared by a Steiger's Z-test to identify the most efficient scaling technique. The current results revealed that it is valid to describe muscle volume (with exception of the rectus femoris muscle) and muscle belly length alterations over age by a simple linear regression equation till the age of 11 years. Normalizing muscle morphology data by allometric scaling was found to be most useful for comparing muscle volumes of different pediatric populations. For muscle lengths, normalization can be achieved by either allometric and ratio scaling. This study provides a unique normative database of four lower limb muscles in typically developing children between the age of 3 and 18 years. These data can be used as a reference database for pediatric populations and may also serve as a reference frame to better understand both physiological and pathological muscle development.
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Affiliation(s)
- Nicky Peeters
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Rehabilitation Sciences, University of Ghent, Ghent, Belgium
| | - Britta Hanssen
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Rehabilitation Sciences, University of Ghent, Ghent, Belgium
| | | | | | - Fenna Walhain
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Anatomy, Anton de Kom University of Suriname, Paramaribo, Suriname
| | - Ester Huyghe
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Tijl Dewit
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, Belgium
| | - Hilde Feys
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Anja Van Campenhout
- Department of Pediatric Orthopedics, Department of Orthopedics, University Hospitals Leuven, Leuven, Belgium.,Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | | | - Patrick Calders
- Department of Rehabilitation Sciences, University of Ghent, Ghent, Belgium
| | - Kaat Desloovere
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, Belgium
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Spasticity Measurement Tools and Their Psychometric Properties Among Children and Adolescents With Cerebral Palsy: A Systematic Review. Pediatr Phys Ther 2022; 34:449-463. [PMID: 35943394 DOI: 10.1097/pep.0000000000000938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE To identify and appraise the literature on the psychometric properties of spasticity measures that have been used among children and adolescents with cerebral palsy (CP). METHODS A comprehensive literature search was conducted in 5 databases. Two independent reviewers screened the literature search results for relevant studies. Reviewers extracted the data using a standardized form and study quality was assessed using a critical appraisal tool. RESULTS A total of 44 studies met the selection criteria and were included. We identified 22 different spasticity assessment tools, with different levels of evidence regarding their psychometric properties. CONCLUSION The findings of the current review indicate that there is limited evidence to recommend 1 spasticity assessment method for children and adolescents with CP. Spasticity assessment in its current state lacks a method that possesses the necessary psychometric properties and is easily used in the clinical setting.
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Peeters N, Papageorgiou E, Hanssen B, De Beukelaer N, Staut L, Degelaen M, Van den Broeck C, Calders P, Feys H, Van Campenhout A, Desloovere K. The Short-Term Impact of Botulinum Neurotoxin-A on Muscle Morphology and Gait in Children with Spastic Cerebral Palsy. Toxins (Basel) 2022; 14:676. [PMID: 36287944 PMCID: PMC9607504 DOI: 10.3390/toxins14100676] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 08/27/2023] Open
Abstract
Children with spastic cerebral palsy (SCP) are often treated with intramuscular Botulinum Neurotoxin type-A (BoNT-A). Recent studies demonstrated BoNT-A-induced muscle atrophy and variable effects on gait pathology. This group-matched controlled study in children with SCP compared changes in muscle morphology 8-10 weeks post-BoNT-A treatment (n = 25, median age 6.4 years, GMFCS level I/II/III (14/9/2)) to morphological changes of an untreated control group (n = 20, median age 7.6 years, GMFCS level I/II/III (14/5/1)). Additionally, the effects on gait and spasticity were assessed in all treated children and a subgroup (n = 14), respectively. BoNT-A treatment was applied following an established integrated approach. Gastrocnemius and semitendinosus volume and echogenicity intensity were assessed by 3D-freehand ultrasound, spasticity was quantified through electromyography during passive muscle stretches at different velocities. Ankle and knee kinematics were evaluated by 3D-gait analysis. Medial gastrocnemius (p = 0.018, -5.2%) and semitendinosus muscle volume (p = 0.030, -16.2%) reduced post-BoNT-A, but not in the untreated control group, while echogenicity intensity did not change. Spasticity reduced and ankle gait kinematics significantly improved, combined with limited effects on knee kinematics. This study demonstrated that BoNT-A reduces spasticity and partly improves pathological gait but reduces muscle volume 8-10 weeks post-injections. Close post-BoNT-A follow-up and well-considered treatment selection is advised before BoNT-A application in SCP.
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Affiliation(s)
- Nicky Peeters
- Department of Rehabilitation Sciences, KU Leuven, 3001 Leuven, Belgium
- Department of Rehabilitation Sciences, Ghent University, 9000 Ghent, Belgium
| | | | - Britta Hanssen
- Department of Rehabilitation Sciences, KU Leuven, 3001 Leuven, Belgium
- Department of Rehabilitation Sciences, Ghent University, 9000 Ghent, Belgium
| | | | - Lauraine Staut
- Department of Rehabilitation Sciences, KU Leuven, 3001 Leuven, Belgium
| | - Marc Degelaen
- Inkendaal Rehabilitation Hospital, 1602 Vlezenbeek, Belgium
- Rehabilitation Research Group, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | | | - Patrick Calders
- Department of Rehabilitation Sciences, Ghent University, 9000 Ghent, Belgium
| | - Hilde Feys
- Department of Rehabilitation Sciences, KU Leuven, 3001 Leuven, Belgium
| | - Anja Van Campenhout
- Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
- Department of Orthopedic Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Kaat Desloovere
- Department of Rehabilitation Sciences, KU Leuven, 3001 Leuven, Belgium
- Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, 3212 Leuven, Belgium
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De Beukelaer N, Weide G, Huyghe E, Vandekerckhove I, Hanssen B, Peeters N, Uytterhoeven J, Deschrevel J, Maes K, Corvelyn M, Costamagna D, Gayan-Ramirez G, Van Campenhout A, Desloovere K. Reduced Cross-Sectional Muscle Growth Six Months after Botulinum Toxin Type-A Injection in Children with Spastic Cerebral Palsy. Toxins (Basel) 2022; 14:toxins14020139. [PMID: 35202166 PMCID: PMC8876834 DOI: 10.3390/toxins14020139] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 02/10/2022] [Indexed: 12/17/2022] Open
Abstract
Botulinum Neurotoxin type-A (BoNT-A) injections are widely used as first-line spasticity treatment in spastic cerebral palsy (SCP). Despite improved clinical outcomes, concerns regarding harmful effects on muscle morphology have been raised. Yet, the risk of initiating BoNT-A to reduce muscle growth remains unclear. This study investigated medial gastrocnemius (MG) morphological muscle growth in children with SCP (n = 26, median age of 5.2 years (3.5)), assessed by 3D-freehand ultrasound prior to and six months post-BoNT-A injections. Post-BoNT-A MG muscle growth of BoNT-A naive children (n = 11) was compared to (a) muscle growth of children who remained BoNT-A naive after six months (n = 11) and (b) post-BoNT-A follow-up data of children with a history of BoNT-A treatment (n = 15). Six months after initiating BoNT-A injection, 17% decrease in mid-belly cross-sectional area normalized to skeletal growth and 5% increase in echo-intensity were illustrated. These muscle outcomes were only significantly altered when compared with children who remained BoNT-A naive (+4% and -3%, respectively, p < 0.01). Muscle length growth persevered over time. This study showed reduced cross-sectional growth post-BoNT-A treatment suggesting that re-injections should be postponed at least beyond six months. Future research should extend follow-up periods investigating muscle recovery in the long-term and should include microscopic analysis.
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Affiliation(s)
- Nathalie De Beukelaer
- Neurorehabilitation Group, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Guido Weide
- Neurorehabilitation Group, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium
- Laboratory for Myology, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, 1081 Amsterdam, The Netherlands
| | - Ester Huyghe
- Neurorehabilitation Group, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Ines Vandekerckhove
- Neurorehabilitation Group, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Britta Hanssen
- Neurorehabilitation Group, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium
- Department of Rehabilitation Science, Ghent University, 9000 Ghent, Belgium
| | - Nicky Peeters
- Neurorehabilitation Group, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium
- Department of Rehabilitation Science, Ghent University, 9000 Ghent, Belgium
| | - Julie Uytterhoeven
- Neurorehabilitation Group, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Jorieke Deschrevel
- Laboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium
| | - Karen Maes
- Laboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium
| | - Marlies Corvelyn
- Stem Cell Biology and Embryology, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Domiziana Costamagna
- Neurorehabilitation Group, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium
- Stem Cell Biology and Embryology, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Ghislaine Gayan-Ramirez
- Laboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium
| | - Anja Van Campenhout
- Unit of Pediatric Orthopedics, Department of Orthopedics, University Hospitals Leuven, 3000 Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
- Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, 3212 Leuven, Belgium
| | - Kaat Desloovere
- Neurorehabilitation Group, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium
- Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, 3212 Leuven, Belgium
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