ArticlePeerJ2019
Musculoskeletal models of a human and bonobo finger: parameter identification and comparison to in vitro experiments.
Article in PeerJ, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Human dexterity and brains evolved hand in hand.Communications biology · 2025Article
- Muscle redundancy is greatly reduced by the spatiotemporal nature of neuromuscular control.Frontiers in rehabilitation sciences · 2023Article
- Variability and the form-function framework in evolutionary biomechanics and human locomotion.Evolutionary human sciences · 2022Review
- Metacarpophalangeal joint loads during bonobo locomotion: model predictions versus proxies.Journal of the Royal Society, Interface · 2020Article
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
introductionKnowledge of internal finger loading during human and non-human primate activities such as tool use or knuckle-walking has become increasingly important to reconstruct the behaviour of fossil hominins based on bone morphology. Musculoskeletal models have proven useful for predicting these internal loads during human activities, but load predictions for non-human primate activities are missing due to a lack of suitable finger models. The main goal of this study was to implement both a human and a representative non-human primate finger model to facilitate comparative studies on metacarpal bone loading. To ensure that the model predictions are sufficiently accurate, the specific goals were: (1) to identify species-specific model parameters based on in vitro measured fingertip forces resulting from single tendon loading and (2) to evaluate the model accuracy of predicted fingertip forces and net metacarpal bone loading in a different loading scenario. MATERIALS &
methodsThree human and one bonobo (
resultsThe parameter identification procedure led to minor model adjustments but considerably reduced the error in the predicted fingertip forces (root mean square error reduced from 0.53/0.69 N to 0.11/0.20 N for the human/bonobo model). Both models remained physiologically plausible after the parameter identification. In the combined loading scenario, fingertip and net metacarpal forces were predicted with average directional errors below 6° and magnitude errors below 12%.
conclusionsThis study presents the first attempt to implement both a human and non-human primate finger model for comparative palaeoanthropological studies. The good agreement between predicted and experimental forces involving the action of extrinsic flexors-which are most relevant for forceful grasping-shows that the models are likely sufficiently accurate for comparisons of internal loads occurring during human and non-human primate manual activities.
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