METHOD FOR DETERMINING THE HUMAN BODY-MASS CENTER

It is described method for determining the center of the equal torques and the center of mass of the human body. The proposed method can be applied in the field of biomechanics of the human body, physiotherapy, dietetics, anatomy and in various fields of biomedical sciences.

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Detection of Vehicle Tripped and Untripped Rollovers by a Novel Index With Mass-Center-Position Estimations

Volume 3: Vibration in Mechanical Systems; Modeling and Validation; Dynamic Systems and Control Education; Vibrations and Control of Systems; Modeling and Estimation for Vehicle Safety and Integrity; Modeling and Control of IC Engines and Aftertreatment Systems; Unmanned Aerial Vehicles (UAVs) and Their Applications; Dynamics and Control of Renewable Energy Systems; Energy Harvesting; Control of Smart Buildings and Microgrids; Energy Systems ◽

10.1115/dscc2017-5149 ◽

2017 ◽

Cited By ~ 5

Author(s):

Fengchen Wang ◽

Yan Chen

Keyword(s):

Load Transfer ◽

Center Of Mass ◽

Roll Motion ◽

Mass Center ◽

Motion Models ◽

Center Position ◽

Before And After ◽

Vehicle Rollover ◽

Lift Off ◽

Rollover Index

This paper presents a novel mass-center-position (MCP) metric for vehicle rollover propensity detection. MCP is first determined by estimating the positions of the center of mass of one sprung mass and two unsprung masses with two switchable roll motion models, before and after tire lift-off. The roll motion information without saturation can then be provided through MCP continuously. Moreover, to detect completed rollover statues for both tripped and untripped rollovers, the criteria are derived from d’Alembert principle and moment balance conditions based on MCP. In addition to tire lift-off, three new rollover statues, rollover threshold, rollover occurrence, and vehicle jumping into air can be all identified by the proposed criteria. Compared with an existing rollover index, lateral load transfer ratio, the fishhook maneuver simulation results in CarSim® for an E-class SUV show that MCP metric can successfully predict the vehicle impending rollover without saturation for untripped rollovers. Tripped rollovers caused by a triangle road bump are also successfully detected in the simulation. Thus, MCP metric can be successfully applied for rollover propensity prediction.

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Locomotory Diseases Influence on Body Equilibrium and Balance

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.555.652 ◽

2014 ◽

Vol 555 ◽

pp. 652-658 ◽

Cited By ~ 2

Author(s):

Barbu Cristian Braun ◽

Ileana Constanta Rosca

Keyword(s):

Body Mass ◽

Human Subjects ◽

Force Plate ◽

The Body ◽

The Other ◽

New Method ◽

First Person ◽

Mass Center ◽

Stability Problems ◽

Research Stage

The paper describes a new method of body equilibrium evaluation applied for different human subjects, the principal aim being to demonstrate to what extent any locomotory diseases could influence the body stability and equilibrium. The research refers to identify some persons with different locomotory diseases and to find both the influence on equilibrium and stability and if possible to improve them. Our research stage, synthesized in this paper, explains the body equilibrium evaluation in orthostatic posture done for different subjects, aged between 20 and 40 years. A number of 10 relevant persons were considered to be evaluated, 2 of them having some locomotory diseases. The first person presents any neuro-motor stability problems in case of long standing case. The other person has both Achilles tendons torn and operated. All subjects were tested in orthostatic posture, in 3 distinct positions, using a Kistler force plate. The experiments referred to the body mass center (COM) displacement in sagittal and lateral planes, representing an interesting characteristic for its equilibrium. It was shown that the person with diseases affecting stability presented a loss of equilibrium when standing for 10-20 seconds, i.e. higher COM displacements in both planes reported to the other tested subjects.

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Video-Based Human Motion Analysis

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.403-408.2593 ◽

2011 ◽

Vol 403-408 ◽

pp. 2593-2597

Author(s):

Hong Bao ◽

Zhi Min Liu

Keyword(s):

Motion Analysis ◽

Human Body ◽

Body Shape ◽

Human Motion ◽

Random Motion ◽

Human Motion Analysis ◽

Mass Center ◽

Shape Features ◽

Skeleton Model ◽

Regular Motion

In the analysis of human motion, movement was divided into regular motion (such as walking and running) and random motion (such as falling down).Human skeleton model is used in this paper to do the video-based analysis. Key joints on human body were chosen to be traced instead of tracking the entire human body. Shape features like mass center trajectory were used to describe the movement, and to classify human motion. desired results achieved.

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Impact of Age and Body Mass Index on Anthropometry in Working Adults

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/1541931213601818 ◽

2017 ◽

Vol 61 (1) ◽

pp. 1341-1345 ◽

Cited By ~ 2

Author(s):

Zachary Merrill ◽

April Chambers ◽

Rakié Cham

Keyword(s):

Body Mass Index ◽

Body Mass ◽

Center Of Mass ◽

Biomechanical Model ◽

Whole Body ◽

Working Adults ◽

Biomechanical Models ◽

Scan Data ◽

Body Segment Parameters ◽

The Impact

Body segment parameters (BSPs) such as segment mass and center of mass are used as inputs in ergonomic design and biomechanical models to predict the risk of musculoskeletal injuries. These models have been shown to be sensitive to the BSP values used as inputs, demonstrating the necessity of using accurate and representative parameters. This study aims to provide accurate BSPs by quantifying the impact of age and body mass index on torso and thigh mass and center of mass in working adults using whole body dual energy x-ray absorptiometry (DXA) scan data. The results showed significant effects of gender, age, and body mass index (BMI) on torso and thigh mass and center of mass, as well as significant effects of age and BMI within genders, indicating that age, gender, and BMI need to be taken into account when predicting BSPs in order to calculate representative ergonomic and biomechanical model outputs.

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11 Dimensions, Mass, Location of the Center of Mass, and Moment of Inertia of the Segments of the Human Body

Orthopedic Biomechanics ◽

10.1055/b-0036-140426 ◽

2016 ◽

Author(s):

Paul Brinckmann ◽

Wolfgang Frobin ◽

Gunnar Leivseth ◽

Burkhard Drerup

Keyword(s):

Human Body ◽

Center Of Mass ◽

Moment Of Inertia

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The Human Body in Britain: Past and Future

The Economic Future in Historical Perspective ◽

10.5871/bacad/9780197263471.003.0014 ◽

2006 ◽

Author(s):

Roderick Floud

Keyword(s):

Body Mass Index ◽

Body Mass ◽

Human Body ◽

Standard Of Living ◽

Anthropometric Measures ◽

The Past ◽

Shed Light ◽

Material Welfare

This chapter explores evidence on the changing shape of the British human body, in particular its height and weight, in order to shed light on the past and possibly future standard of living of the British population. It focuses on anthropometric measures (based on height, weight, and body mass index) that are employed as indicators of material welfare of the population.

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