Functional Morphology and Human Functional Anatomy as the Foundation of Personalised Neuromusculoskeletal Model

A special issue of Journal of Functional Morphology and Kinesiology (ISSN 2411-5142). This special issue belongs to the section "Functional Anatomy and Musculoskeletal System".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 1440

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Department of Anatomy and Embryology, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain
Interests: functional anatomy
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Special Issue Information

Dear Colleagues,

Functional morphology and anatomy has long provided a conceptual framework for understanding how the structure of the musculoskeletal system enables, constrains, and shapes human movement. In recent years, the rapid development of personalised neuromusculoskeletal models, digital twins, advanced imaging techniques, and data-driven approaches has renewed interest in subject-specific anatomy as a critical determinant of functional interpretation and prediction. However, despite these advances, many contemporary modelling approaches still rely on generic or oversimplified representations of human anatomy, limiting their explanatory power and translational value.

This Special Issue aims to place human functional morphology and functional anatomy at the centre of personalised neuromusculoskeletal modelling, emphasising that anatomical form is not merely an input parameter, but the primary explanatory layer that constrains model behaviour, validity, and interpretability. The Special Issue will focus on how the subject-specific functional morphology and functional anatomy of the human musculoskeletal system inform, constrain, and validate personalised neuromusculoskeletal models, rather than on computational or engineering novelty per se. We are particularly interested in contributions that explicitly demonstrate how anatomical variability, muscle architecture, tendon and fascia morphology, or structural organisation influence functional outcomes, model predictions, or clinical and performance-related interpretations. Comparative or translational perspectives are welcome only when they directly inform human functional anatomy or musculoskeletal function.

By bringing together anatomists, morphologists, biomechanists, clinicians, and movement scientists, we hope to strengthen the anatomical foundations of personalised modelling and promote anatomically informed approaches that bridge basic science, clinical application, and human movement analysis.

Prof. Dr. Luis A. Arráez-Aybar
Guest Editor

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Keywords

  • functional morphology
  • human functional anatomy
  • personalised neuromusculoskeletal modelling
  • musculoskeletal architecture
  • anatomical variability
  • muscle–tendon morphology
  • human movement biomechanics

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Published Papers (3 papers)

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30 pages, 10147 KB  
Article
Supraclavicular Foramina in Dry Clavicles: An Observational Study and Meta-Analysis of Prevalence and Laterality
by Vasileios Papadopoulos, Vagia Tourtouri, Andromachi Navrozidou, Athanasios Markou, Petros Siakavellas and Aliki Fiska
J. Funct. Morphol. Kinesiol. 2026, 11(3), 289; https://doi.org/10.3390/jfmk11030289 - 24 Jul 2026
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Abstract
Background: The supraclavicular foramen (SCF) is a rare anatomical variant formed when a branch of the supraclavicular nerve traverses the clavicle through a complete transclavicular canal. Published studies differ substantially in study material, denominators, and reporting of side-specific and bilateral data, so bilateral [...] Read more.
Background: The supraclavicular foramen (SCF) is a rare anatomical variant formed when a branch of the supraclavicular nerve traverses the clavicle through a complete transclavicular canal. Published studies differ substantially in study material, denominators, and reporting of side-specific and bilateral data, so bilateral anatomy is often synthesized as if pairing were irrelevant. Objectives: This study aimed to describe SCF in a Greek osteological sample and to apply a meta-analytic framework distinguishing per-clavicle prevalence, marginal laterality, paired laterality, and separately observed bilateral prevalence. Methods: We examined 115 dry clavicles of Greek origin for SCF frequency, size, and topography. Measurements were obtained independently by four observers using stainless-steel wires and digital calipers, with inter-rater agreement assessed by intraclass correlation coefficients. A systematic review and meta-analysis were then conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines. PubMed, Scopus, and SciELO were searched from inception to 11 April 2026, supplemented by Google Scholar and backward and forward citation tracking, without language restrictions. Quantitative synthesis included pooled per-clavicle prevalence, conventional marginal left-versus-right comparison, and feasibility-based paired laterality analysis under explicit dependence assumptions when bilateral information was incomplete. Observed bilateral prevalence was analyzed separately using only studies with directly reported body-level bilateral counts. Risk of bias in the included studies was assessed using the Anatomical Quality Assessment tool, while the review itself was appraised using the Critical Appraisal Tool for Anatomical Meta-Analysis. Results: Complete transclavicular canals, identified by two external openings connected by a complete transosseous passage, were present in 3/115 clavicles (2.6%), with a mean aggregate transverse wire span of 1.5 ± 0.8 mm and a mean relative acromial position of 0.44 ± 0.01. Inter-rater reliability was excellent. Pooled per-clavicle prevalence was 2.2%, with 95% confidence intervals (CIs) 1.4–3.0% and I2 = 71%. Conventional marginal laterality supported left-sided predominance, with an odds ratio of 1.76 (95% CI: 1.16–2.66; I2 = 0%), while feasibility-based paired laterality yielded a stronger effect (paired OR = 2.26, 95% CI: 1.30–3.94). The main observed bilateral-prevalence model yielded 0.95% (95% CI: 0.33–2.70%). The Doi plot and Luis Furuya-Kanamori index indicated minor asymmetry. Conclusions: Complete transclavicular canals occurred in 2.6% of the examined clavicles and occupied a reproducible mid-to-lateral position. The meta-analysis confirmed that the variant is uncommon, supported left-sided predominance, and showed that directly observed bilateral occurrence is rare. Separating clavicle-level prevalence, marginal laterality, feasibility-based paired laterality, and body-level bilateral prevalence provided a more appropriate synthesis of incompletely paired evidence. Full article
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15 pages, 856 KB  
Article
Exploratory Analysis of Skeletal Muscle Architecture and Force–Time Strategy Under External Load in Collegiate Basketball Players
by Chieh-Ying Chiang, Tzu-Han Chan, Yi-Cheng Wu and Sung-Kai Lin
J. Funct. Morphol. Kinesiol. 2026, 11(3), 246; https://doi.org/10.3390/jfmk11030246 - 24 Jun 2026
Cited by 1 | Viewed by 442
Abstract
Objectives: Skeletal muscle architecture (SMA) defines the mechanical limits of force production. However, its associations with force–time strategy under externally loaded conditions have received little research attention. This exploratory study examined associations between vastus lateralis (VL) and lateral gastrocnemius (LG) architecture and [...] Read more.
Objectives: Skeletal muscle architecture (SMA) defines the mechanical limits of force production. However, its associations with force–time strategy under externally loaded conditions have received little research attention. This exploratory study examined associations between vastus lateralis (VL) and lateral gastrocnemius (LG) architecture and force–time strategy, jump-height retention, and stretch–shortening cycle (SSC) transfer-efficiency in collegiate basketball players. Methods: Seventeen collegiate male basketball players completed B-mode ultrasonographic assessment of VL and LG architecture, including muscle thickness, pennation angle (PA), and fascicle length. Athletes performed the squat jump (SJ), loaded squat jump (LSJ), countermovement jump (CMJ), and loaded countermovement jump (LCMJ) on force platforms, with a 20 kg external load applied for loaded conditions. Loaded retention, defined as the percentage of jump height preserved under load, was proposed as a unified construct. Pearson’s correlations were calculated, with Benjamini–Hochberg false discovery rate (FDR) corrections applied within predefined functional groups and pooled across morphology-sensitive correlations. Results: LG PA showed a large negative association with LCMJ rate of force development (r = −0.68 [−0.87, −0.30]) and a large positive association with LCMJ time to peak force (r = 0.68 [0.29, 0.87]), both surviving within-group FDR correction. VL PA was associated with eccentric acceleration time and concentric time across jump conditions (r = 0.52 to 0.61), interpreted as exploratory. Transfer-efficiency indices showed no significant associations with SMA, except for the LCMJ/LSJ concentric time ratio, which showed a moderate negative association with LG PA (r = −0.49 [−0.79, −0.01]). Conclusions: Resting muscle architecture was associated with the temporal and rate characteristics of force expression under load, rather than with the gross preservation of jump height. Integrating architectural assessment with loaded force–time profiling warrants further investigation as a means of characterizing individual force-development strategies. Full article
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19 pages, 18314 KB  
Perspective
Multilevel Determinants of Acromiohumeral Distance Within a Systems-Based Functional Morphology Framework and Their Implications for Personalized Neuromusculoskeletal Modelling
by Luis Alfonso Arráez-Aybar, Carlos Miquel García-de-Pereda-Notario, Luis Palomeque-Del-Cerro and Juan José Montoya-Miñano
J. Funct. Morphol. Kinesiol. 2026, 11(3), 314; https://doi.org/10.3390/jfmk11030314 - 12 Aug 2026
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Abstract
Background: The acromiohumeral distance (AHD) is a widely used imaging parameter for evaluating the subacromial region and shoulder function. Traditionally, it has been interpreted as a static anatomical measurement reflecting the available subacromial space and associated with rotator cuff pathology, superior humeral migration, [...] Read more.
Background: The acromiohumeral distance (AHD) is a widely used imaging parameter for evaluating the subacromial region and shoulder function. Traditionally, it has been interpreted as a static anatomical measurement reflecting the available subacromial space and associated with rotator cuff pathology, superior humeral migration, and subacromial impingement. However, inconsistent relationships between AHD, symptoms, and function suggest that purely structural interpretations may be insufficient. Objectives: To propose a systems-based functional morphology framework that reinterprets AHD as an emergent functional state variable reflecting the instantaneous state of the glenohumeral system. Methods: A conceptual synthesis integrated evidence from shoulder biomechanics, functional morphology, movement science, connective tissue research, systems theory, and personalized neuromusculoskeletal modelling. Structural, connective tissue, neuromuscular, and mechanical determinants of AHD were integrated within a multilevel systems perspective. Results: The proposed framework conceptualizes AHD as emerging from the dynamic interaction of four organizational domains: structural constraints, connective tissue properties, neuromuscular regulation, and mechanical context. Rather than representing a fixed anatomical space, AHD is interpreted as a potential systems-level functional biomarker whose value varies according to the functional state of the glenohumeral system. This perspective explains the variability observed across imaging studies and the frequent discordance between structural findings, symptoms, and functional outcomes. Conclusions: Reframing AHD as an emergent functional state variable provides a theoretical basis for integrating anatomy, biomechanics, movement behavior, and neuromuscular control within personalized shoulder assessment. This systems-based perspective may help bridge the traditional gap between structural imaging and clinical presentation while supporting future developments in precision rehabilitation and subject-specific computational modelling. Full article
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