ArticleProceedings of the ... ASME Design Engineering Technical Conferences. ASME Design Engineering Technical Conferences2013
WHAT IS A MOMENT ARM? CALCULATING MUSCLE EFFECTIVENESS IN BIOMECHANICAL MODELS USING GENERALIZED COORDINATES.
Article in Proceedings of the ... ASME Design Engineering Technical Conferences. ASME Design Engineering Technical Conferences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
39 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Muscle Moment Arm-Joint Angle Relations in the Hip, Knee, and Ankle: A Visualization of Datasets.Annals of biomedical engineering · 2025Pooled it
- Is my model good enough? Best practices for verification and validation of musculoskeletal models and simulations of movement.Journal of biomechanical engineering · 2015Guideline
- Dependence of Muscle Moment Arms on In Vivo Three-Dimensional Kinematics of the Knee.Annals of biomedical engineering · 2017Trial
- Isometric training at longer muscle-tendon complex lengths: A potential countermeasure to impaired neuro-muscle-tendon function during space travel.Experimental physiology · 2026Review
- Multiscale Modeling and Analysis of Muscle Tissue: A Finite Element Approach for 3D Braided Composite Structures.Biomimetics (Basel, Switzerland) · 2026Article
- Multiscale adaptations underlie bite force variation in rodents.Communications biology · 2026Article
- Do we need medical imaging-informed musculoskeletal models for simulations in healthy adults? A new workflow based on magnetic resonance imaging highlights the importance of personalized geometry.PLoS computational biology · 2026Article
- Reducing Complexity in Muscle-Tendon Kinematics Parameterization Improves Convergence Speed in Musculoskeletal Simulations.International journal for numerical methods in biomedical engineering · 2026Article
- Morphogenetic development of trochlear groove and thigh muscles from embryo to fetus in humans.PloS one · 2026Article
- Beyond the Curve: The Muscle-Specific Asymmetries of Adolescent Idiopathic Scoliosis.JOR spine · 2025Article
- Sexual Differences in Appendages of a Fossorial Narrow-Mouth Frog,Animals : an open access journal from MDPI · 2025Article
- Adaptive landscapes unveil the complex evolutionary path from sprawling to upright forelimb function and posture in mammals.PLoS biology · 2025Article
- The effect of a soft active back support exosuit on trunk motion and thoracolumbar spine loading during squat and stoop lifts.Ergonomics · 2025Article
- Three-dimensional architecture and moment arms of human rotator cuff muscles in vivo: Interindividual, intermuscular, and intramuscular variations.Journal of anatomy · 2024Article
- Article
- Article
- Modern three-dimensional digital methods for studying locomotor biomechanics in tetrapods.The Journal of experimental biology · 2023Review
- Muscle coordination retraining inspired by musculoskeletal simulations reduces knee contact force.Scientific reports · 2022Article
- The biomechanical disadvantage of dysplastic hips.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022Article
- Exploring the functional morphology of the Gorilla shoulder through musculoskeletal modelling.Journal of anatomy · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
Biomechanics researchers often use multibody models to represent biological systems. However, the mapping from biology to mechanics and back can be problematic. OpenSim is a popular open source tool used for this purpose, mapping between biological specifications and an underlying generalized coordinate multibody system called Simbody. One quantity of interest to biomechanical researchers and clinicians is "muscle moment arm," a measure of the effectiveness of a muscle at contributing to a particular motion over a range of configurations. OpenSim can automatically calculate these quantities for any muscle once a model has been built. For simple cases, this calculation is the same as the conventional moment arm calculation in mechanical engineering. But a muscle may span several joints (e.g., wrist, neck, back) and may follow a convoluted path over various curved surfaces. A biological joint may require several bodies or even a mechanism to accurately represent in the multibody model (e.g., knee, shoulder). In these situations we need a careful definition of muscle moment arm that is analogous to the mechanical engineering concept, yet generalized to be of use to biomedical researchers. Here we present some biomechanical modeling challenges and how they are resolved in OpenSim and Simbody to yield biologically meaningful muscle moment arms.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.