We designed motor learning support for acquiring motor skills involving neural mechanisms. We should be able to acquire neural information by analyzing whole-body muscle data, because the nervous system controls the musculoskeletal system and lengths and forces information is fed back to the nervous system. Motor information is calculated by mapping motioncapture data on to a musculoskeletal hu...

We validated whole body composition estimates from dual-energy X-ray absorptiometry (DEXA) against estimates from a four-component model to determine whether accuracy is affected by gender, race, athletic status, or musculoskeletal development in young adults. Measurements of body density by hydrostatic weighing, body water by deuterium dilution, and bone mineral by whole body DEXA were obtaine...

background: work-related musculoskeletal disorders (wmsds) are the most common occupational injuries in dentists. these disorders occur due to the specific characteristics of dentistry occupation such as the use of tools and instruments and awkward posture. the present study aimed at evaluating the effect of multifaceted ergonomic program on reducing musculoskeletal disorders in dentists.   met...

The purpose of this paper is to explain how and why performance in explosive movements depends on musculoskeletal properties and coordination. First, a musculoskeletal model is presented that has muscle stimulation as only independent input, and allows for forward simulation of explosive movements. Subsequently, a theoretical framework is presented for analyzing simulation results: performance ...

Three-dimensional musculoskeletal models have become increasingly common for investigating muscle moment arms in studies of vertebrate locomotion. In this study we present the first musculoskeletal model of a western lowland gorilla hind limb. Moment arms of individual muscles around the hip, knee and ankle were compared with previously published data derived from the experimental tendon travel...

PURPOSE The aim of the present study was to evaluate the influence of modified morphological parameters of the muscle model and excitation pattern on the results of musculoskeletal system numerical simulation in a cerebral palsy patient. METHODS The modelling of the musculoskeletal system was performed in the AnyBody Modelling System. The standard model (MoCap) was subjected to modifications ...

INTRODUCTION We investigated the effects of a mismatch between control and musculoskeletal properties on performance in vertical jumping. METHODS Six subjects performed maximum-effort vertical squat jumps before (REF) and after the plantarflexors of the right leg had been fatigued (FAT) while kinematic data, ground reaction forces, and EMG of leg muscles were collected. Inverse dynamics was u...

Finite element (FE) modeling and multibody dynamics have traditionally been applied separately to the domains of tissue mechanics and musculoskeletal movements, respectively. Simultaneous simulation of both domains is needed when interactions between tissue and movement are of interest, but this has remained largely impractical due to the high computational cost. Here we present a method for th...

Subject-specific musculoskeletal modeling can be applied to study musculoskeletal disorders, allowing inclusion of personalized anatomy and properties. Independent of the tools used for model creation, there are unavoidable uncertainties associated with parameter identification, whose effect on model predictions is still not fully understood. The aim of the present study was to analyze the sens...

This study was supported by ANSES (French agency for Food, Environmental and Occupational Health Safety, APR EST 2011 TeMIS, CDC/NIOSH (grant # R01OH008017-01) and by the National Center for Research Resources (NCRR) (grant # UL1 RR024992), a component of the National Institutes of Health (NIH), and NIH Roadmap for Medical Research. Its contents are solely the responsibility of the authors and ...