An open source lower limb model: Hip joint validation

Modenese, Luca; Phillips, A.T.M.; Bull, Anthony M.J.

doi:10.1016/j.jbiomech.2011.06.019

Cited by 139 publications

(169 citation statements)

References 48 publications

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“…The quadratic polynomial muscle recruitment criterion, which showed superior prediction of HCFs, was adopted for the purpose of comparison with similar studies. 27,36 For the comparison with previous literature, 27 quadratic polynomial muscle recruitment was adopted in the MSK model. Few differences in the predicted HCFs and translations were found in the sensitivity analysis of the muscle recruitment criteria.…”

Section: Discussionmentioning

confidence: 99%

Prediction of hip joint load and translation using musculoskeletal modelling with force-dependent kinematics and experimental validation

Zhang

Chen

Yang

et al. 2015

Proc Inst Mech Eng H

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Musculoskeletal lower limb models are widely used to predict the resultant contact force in the hip joint as a non-invasive alternative to instrumented implants. Previous musculoskeletal models based on rigid body assumptions treated the hip joint as an ideal sphere with only three rotational degrees of freedom. An musculoskeletal model that considered force-dependent kinematics with three additional translational degrees of freedom was developed and validated in this study by comparing it with a previous experimental measurement. A 32-mm femoral head against a polyethylene cup was considered in the musculoskeletal model for calculating the contact forces. The changes in the main modelling parameters were found to have little influence on the hip joint forces (relative deviation of peak value < 10 BW%, mean trial deviation < 20 BW%). The centre of the hip joint translation was more sensitive to the changes in the main modelling parameters, especially muscle recruitment type (relative deviation of peak value < 20%, mean trial deviation < 0.02 mm). The predicted hip contact forces showed consistent profiles, compared with the experimental measurements, except in the lateral–medial direction. The ratio-average analysis, based on the Bland–Altman’s plots, showed better limits of agreement in climbing stairs (mean limits of agreement: −2.0 to 6.3 in walking, mean limits of agreement: −0.5 to 3.1 in climbing stairs). Better agreement of the predicted hip contact forces was also found during the stance phase. The force-dependent kinematics approach underestimated the maximum hip contact force by a mean value of 6.68 ± 1.75% BW compared with the experimental measurements. The predicted maximum translations of the hip joint centres were 0.125 ± 0.03 mm in level walking and 0.123 ± 0.005 mm in climbing stairs.

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Section: Discussionmentioning

confidence: 99%

Prediction of hip joint load and translation using musculoskeletal modelling with force-dependent kinematics and experimental validation

Zhang

Chen

Yang

et al. 2015

Proc Inst Mech Eng H

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“…27, 45 Validation among 103 models is also necessary, with the expectation of users 104 that the same analyses performed with different models 105 or software will produce consistent results. 61 It is not 106 known whether this expectation is currently being met 107 and/or to what capacity users of different models must 108 scale or adapt those models to yield consistent results.…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

Consistency Among Musculoskeletal Models: Caveat Utilitor

et al. 2013

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“…Several human models have been developed (e.g. Delp et al, 1990;Hatze, 1977;Modenese et al, 2011), permitting predictions of muscle-tendon kinematics and moment arms across a range of three-dimensional (3D) joint positions. When combined with detailed muscle architecture measurements, both active and passive muscle-tendon forces and muscle fascicle length change can be determined (e.g.…”

Section: Introductionmentioning

confidence: 99%

A three-dimensional musculoskeletal model of the chimpanzee (Pan troglodytes) pelvis and hind limb

O’Neill

Lee

Larson

et al. 2013

Journal of Experimental Biology

145

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SUMMARYMusculoskeletal models have become important tools for studying a range of muscle-driven movements. However, most work has been in modern humans, with few applications in other species. Chimpanzees are facultative bipeds and our closest living relatives, and have provided numerous important insights into our own evolution. A chimpanzee musculoskeletal model would allow integration across a wide range of laboratory-based experimental data, providing new insights into the determinants of their locomotor performance capabilities, as well as the origins and evolution of human bipedalism. Here, we described a detailed three-dimensional (3D) musculoskeletal model of the chimpanzee pelvis and hind limb. The model includes geometric representations of bones and joints, as well as 35 muscle-tendon units that were represented using 44 Hill-type muscle models. Muscle architecture data, such as muscle masses, fascicle lengths and pennation angles, were drawn from literature sources. The model permits calculation of 3D muscle moment arms, muscle-tendon lengths and isometric muscle forces over a wide range of joint positions. Muscle-tendon moment arms predicted by the model were generally in good agreement with tendon-excursion estimates from cadaveric specimens. Sensitivity analyses provided information on the parameters that model predictions are most and least sensitive to, which offers important context for interpreting future results obtained with the model. Comparisons with a similar human musculoskeletal model indicate that chimpanzees are better suited for force production over a larger range of joint positions than humans. This study represents an important step in understanding the integrated function of the neuromusculoskeletal systems in chimpanzee locomotion.

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An open source lower limb model: Hip joint validation

Cited by 139 publications

References 48 publications

Prediction of hip joint load and translation using musculoskeletal modelling with force-dependent kinematics and experimental validation

Prediction of hip joint load and translation using musculoskeletal modelling with force-dependent kinematics and experimental validation

Consistency Among Musculoskeletal Models: Caveat Utilitor

A three-dimensional musculoskeletal model of the chimpanzee (Pan troglodytes) pelvis and hind limb

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