Walking Human 3ds Max Free _HOT_ Model
Renderpeople uses state-of-the-art 3D scanning technique to capture real human models. Scanning guarantees 3D People the highest level of detail and realism. With our 250 DSLR camera setup, Renderpeople owns one of the most advanced photogrammetry 3D scanners in the world.Yet scanning is only one part of our 3D People creation pipeline. After scanning, each Renderpeople model is manually processed and optimized by specialized 3D artists to ensure that the geometry and high-resolution 8K textures are clean and faultless. This enables Renderpeople to provide high-quality 3D scans that look as realistic and vivid as real human beings.
walking human 3ds max free model
178 files 3D Walking Models found for free download. These Walking 3d models with high detailed, lowpoly, rigged, animated, printable, are ready for your design. Archive available in most of the popular 3d file formats including Blender, 3ds Max, Maya, Cinema 4D, Obj, Fbx, Stl.
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Energetic economy has been shown to have a large influence on human walking behavior. For example, at a given speed, humans tend to walk with a preferred step length that coincides with minimum metabolic cost1,2. Despite the complexity of relating walking mechanics to energetic expenditure, past studies have determined important contributors towards the overall energetic cost of walking, such as the work performed during step-to-step transitions to redirect the center of mass (CoM) velocity and the cost of generating muscular force for body weight support and for leg swing3,4,5,6. To the best of our knowledge, however, no study to date has used walking mechanics to present a unified cost landscape that can predict metabolic cost under various walking conditions. Without understanding the major energetic contributions, it would be difficult to identify the energetic consequences of compensatory movement in abnormal gait or prescribe effective treatment. Likewise, reducing the metabolic cost of impaired walking towards normative levels may contribute towards the efficacy of prosthetic and orthotic devices7.
The metabolic cost of walking is the overall energy consumption from many different mechanisms in the body, including muscle dynamics, blood circulation, and aerobic processes8. In human gait experiments, this cost is typically calculated from measurements of oxygen consumption and carbon dioxide production minus the basal metabolic rate of standing to yield net metabolic power9. Metabolic cost is conventionally expressed in two different ways: the metabolic energy consumed per unit of time (metabolic rate or power) or the metabolic energy consumed per unit of distance (Cost of Transport, CoT).
Other mechanisms, such as swing leg dynamics and torso balance, are also important contributors to energetic cost during walking. While leg swing can be explained by passive pendular dynamics12 and thus is sometimes unmodeled in simple walking models13, experimental studies have shown that it contributes approximately 10% of the net metabolic cost6. Despite its relatively small weight, leg swing oscillations forced at frequencies above the natural frequency can have a significant energetic consequence due to muscle force production at the swing hip5. Furthermore, due to pendular falling dynamics, the pelvis also has a considerable acceleration in walking direction. This requires the stance hip muscles to apply torques to the torso, which are comparable in magnitude to swing torques14.
Modeling the energetic cost of walking is challenging due to the complexities of the musculoskeletal system and its intricate relationship with neural locomotor mechanisms15. Translating from chemical processes at the molecular level to muscle force production and metabolic consumption is nontrivial and difficult to measure. The indeterminate relation between muscle work and joint mechanical work further complicates biomechanical analysis and modelling. Despite these difficulties, both sophisticated neuromusculoskeletal models (e.g.16) and simple inverted pendulum models (e.g.17) have shown that minimizing some form of metabolic cost of transport leads to patterns similar to those of healthy human gait. While the complexity of the former models precludes further insight, the simple walking models permit linear separation of cost factors, such as pendular and swing dynamics17. Experimental studies suggest that a large portion of the energetic cost of walking can be attributed to a few factors (e.g. 28% for body weight support, 45% for CoM work4), but it is still unclear if and how these determinants can be combined to predict metabolic cost under various walking conditions.
We propose a simple metabolic cost model to provide meaningful estimates of the human metabolic rate under general walking conditions. First, to encapsulate walking dynamics in a simple manner, we utilized a 3D linear model that can describe major sagittal plane and frontal plane dynamics (i.e. pendular falling, swing and torso-balancing effects) over a wide range of walking speeds and step frequencies18. While that model can capture horizontal energetic contributors during normal walking, it cannot fully capture the empirical CoT data as a function of speed and step frequency from Bertram1. Therefore, we needed additional components to capture such unmodeled costs.