scholarly journals A Dynamic Bayesian Approach to Computational Laban Shape Quality Analysis

2009 ◽  
Vol 2009 ◽  
pp. 1-17 ◽  
Author(s):  
Dilip Swaminathan ◽  
Harvey Thornburg ◽  
Jessica Mumford ◽  
Stjepan Rajko ◽  
Jodi James ◽  
...  
Keyword(s):  
Mixed Reality ◽  
Low Cost ◽  
Dynamic Bayesian Network ◽  
Movement Analysis ◽  
Human Movement ◽  
Physical World ◽  
The Body ◽  
Quality Analysis ◽  
Whole Body ◽  
Bayesian Fusion

Laban movement analysis (LMA) is a systematic framework for describing all forms of human movement and has been widely applied across animation, biomedicine, dance, and kinesiology. LMA (especially Effort/Shape) emphasizes how internal feelings and intentions govern the patterning of movement throughout the whole body. As we argue, a complex understanding of intention via LMA is necessary for human-computer interaction to becomeembodiedin ways that resemble interaction in the physical world. We thus introduce a novel, flexible Bayesian fusion approach for identifying LMA Shape qualities from raw motion capture data in real time. The method uses a dynamic Bayesian network (DBN) to fuse movement features across the body and across time and as we discuss can be readily adapted for low-cost video. It has delivered excellent performance in preliminary studies comprising improvisatory movements. Our approach has been incorporated inResponse, a mixed-reality environment where users interact via natural, full-body human movement and enhance their bodily-kinesthetic awareness through immersive sound and light feedback, with applications to kinesiology training, Parkinson's patient rehabilitation, interactive dance, and many other areas.

scholarly journals Composição corporal na síndrome metabólica: Proposta de um protocolo de ensaio clínico randomizado avaliando o efeito do exercício de vibração de corpo inteiro

2019 ◽  
Vol 18 (1) ◽  
pp. 33-40
Author(s):  
Aline S. Reis ◽  
Laisa L. Paineiras-Domingos ◽  
Eloá Moreira-Marconi ◽  
Márcia C. Moura-Fernandes ◽  
Hervé Quinart ◽  
...  
Keyword(s):  
Risk Factors ◽  
Metabolic Syndrome ◽  
Body Composition ◽  
Low Cost ◽  
Whole Body Vibration ◽  
Strong Relationship ◽  
The Body ◽  
Whole Body ◽  
Control Group ◽  
Body Vibration

Introduction: Metabolic syndrome (MetS) is characterized bya group of cardiovascular risk factors, such as hypertension,hyperglycemia, hypercholesterolemia, low high-density cholesteroland increased abdominal fat. Over the years, changesin body composition occur, with accelerated loss of lean massand increased fat mass, favoring cardiometabolic disorders.A strong relationship exists between physical inactivity andthe presence of multiple risk factors for MetS. Thus, physicalexercise has been recommended for the prevention of cardiovascular,chronic and MetS diseases. Whole-body vibration(WBV) exercise can be considered to be an exercise modalitythat benefits the muscular strength and cardiovascular healthof elderly, sick and healthy people. Individuals with MetSare unmotivated to perform physical exercise regularly and,therefore, new approaches to intervention for this populationare desirable. Objectives: The aim of this study is to presenta protocol to verify the effect of WBV exercise on the bodycomposition of MetS individuals. Methods: Randomized controlledtrial with MetS individuals that will be allocated to anintervention group (WBVG) and a control group (CG). Participantswill be placed barefoot on the base of a side alternatingvibrating platform, with 130º knee flexion. Individuals (WBVGand CG) will perform the protocol for 12 weeks, twice a week.The CG subjects will perform the exercises at 5Hz throughoutthe intervention and those from the WBVG will perform the5Hz exercises in the first session, adding 1Hz per session, endingthe protocol at 16Hz. The body composition will be evaluatedbefore and after the protocol using bioelectrical impedanceanalysis. Discussion: Studies involving WBV exercise haveshown improvement in composition in individuals withdifferent conditions (healthy and unhealthy). Conclusion: Theproposed protocol will permit the acquisition of findings thatwill be relevant in the evaluation of the effect of the WBV onthe body composition of MetS individuals due to its ease ofrealization, low cost and safety.Keywords: Whole body vibration exercise; Metabolic syndrome;Physical activity.

Exposed to Time

2016 ◽  
pp. 142-166
Author(s):  
Nicolás Salazar-Sutil ◽  
Sebastián Melo
Keyword(s):  
Movement Analysis ◽  
Human Movement ◽  
Academic Discourse ◽  
The Body ◽  
Movement Duration ◽  
Marcel Duchamp ◽  
History Of ◽  
The Impact

This chapter presents a cross-history of motion visualization, especially in relation to the human movement duration in time-based media. Such a crossover discourse from chronophotography to photodynamism facilitates a number of shifts from analytical to nonanalytical, and from scientific to artistic visual experimentation. Because chronophotography and dynamophotography remain unresolved fields, they offer a distinct way of perceiving how the body moves, quite separate from cinematic vision, which has become congealed into a dominant disciplinary visual and academic discourse. Within a chronophotographic collection of visual histories, the impact of classical movement analysis and Etienne Jules-Marey’s chronophotographic science on modern chronophotographic art (such as that of Marcel Duchamp) and Italian photodynamism is key. This complex historical crucible presents us with an enduring tradition of hybrid experimentalism in the visualization of the moving (dancing) body, which persists in digital contexts through work that combines chrono- and dynamophotographic visions.

Research on Pre-Slip Gait Mechanical Contributions and Gait Self-Balancing Mechanics during Walking

2012 ◽  
Vol 164 ◽  
pp. 383-386
Author(s):  
Hai Long Su ◽  
Da Wei Zhang
Keyword(s):  
Angular Momentum ◽  
Human Body ◽  
Dynamic Balance ◽  
Human Movement ◽  
The Body ◽  
Whole Body ◽  
Complex Dynamic ◽  
Dynamic Task

Walking is a complex dynamic task that requires the regulation of the whole-body angular momentum to maintain dynamic balance while performing walking subtasks such as propelling the body forward and accelerating the leg into swing. To investigate the characteristic of slips and falls during gait self-balancing, a method was proposed that could better understand the effects of pre-slip gait response biomechanics on the risk for falls. A new segmental model of the human body was developed and this model would be used continuously measured locations from nearly 85 points on the body to produce a dynamic postural record of human movement. The muscles surrounding the hip were found to be most important in maintaining control of the trunk and preventing collapse in response to the forward perturbations (FP).

scholarly journals Transcending Dimensions

2016 ◽  
pp. 656-676
Author(s):  
Sita Popat
Keyword(s):  
Virtual Reality ◽  
Euclidean Space ◽  
Virtual World ◽  
Mixed Reality ◽  
Physical World ◽  
The Body ◽  
Newtonian Physics ◽  
Projection Screen ◽  
Cultural Experiences ◽  
Embodied Experiences

This chapter considers how the use of screendance within performances and installations affects the ways in which audiences and participants experience bodies in space by transcending the dimensions ascribed to them traditionally by the material world and the projection screen. Mixed reality and “ubiquitous computing” are increasingly embedded in our social and cultural experiences, and three dance or dance-related examples that use them are examined: Merce Cunningham’s Biped, igloo’s SwanQuake: House, and Paul Sermon’s Telematic Dreaming. Virtual reality can have a realistic perspective that creates an environment comparable to the physical world, or it can challenge Euclidean space and Newtonian physics by highlighting phenomena that can only exist in the virtual world—yet both of these can create binaries that disrupt embodied experiences by prioritizing concept over sensation. Dance has much to offer in developing understandings of how the body and technology can manage and overcome binary tendencies within a mixed reality environment.

Whole Body MRI Versus Skeletal Survey in Multple Myeloma.

Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 5106-5106
Author(s):  
Johnny McHugh ◽  
Ciaran Johnston ◽  
Deirdre Duke ◽  
Patrick Thornton ◽  
Steve Eustace ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Lumbar Spine ◽  
Low Cost ◽  
Lesion Detection ◽  
The Body ◽  
Skeletal Survey ◽  
Bone Involvement ◽  
Whole Body ◽  
X Rays ◽  
Whole Body Mri

Abstract BACKGROUND: Bone involvement in myeloma is conventionally assessed by radiographic skeletal survey (plain x-rays of spine, skull, chest, pelvis and long bones). However this may not pick up bony involvement in all patients who may then present with serious complications of myeloma bone disease such as spinal cord compression. Whole body MRI may be better than skeletal survey at evaluating myeloma bone involvement. AIMS: To compare the evaluation of myeloma bone involvement by conventional radiographic skeletal survey (RSS) with whole body magnetic resonance imaging (MRI). METHODS: 35 patients with multiple myeloma (median age 68 yrs, range 46–81) underwent conventional RSS and whole body MRI. 19 of the patients had newly diagnosed multiple myeloma and 16 had relapsed multiple myeloma. The extent of myeloma bone involvement was evaluated in both RSS and MRI as follows: the body was divided up into ten areas: skull, cervical spine, ribs, thoracic spine, lumbar spine, pelvis, right arm, left arm, right leg, left leg. In each area the extent of myeloma bone involvement was scored in both RSS and MRI as follows: 0 = normal; 1 = one focus of abnormality; 2 = more than one focus of abnormality; 3 = diffuse disease. The scores for each of the ten areas were combined to give an overall score out of thirty for both RSS and MRI. RESULTS: 30 of the 35 patients (85.7%) had evidence of bone involvement on MRI. This compares with 22 out of the 35 (62.9%) on RSS. The mean score for the extent of myeloma bone involvement on MRI was significantly higher than that for RSS (MRI mean score: 15.5 out of 30 (median 17, range 0–30); RSS mean score: 5.5 out of 30 (median 3, range 0 to 24); p<0.001). MRI was superior to RSS in all ten areas evaluated both in terms of lesion detection and extent of disease. The greatest difference between MRI and RSS was seen in the cervical, thoracic and lumbar spine, while the smallest difference was seen in the ribs and skull. Eight of the patients had no bone involvement detectable on RSS but did have bone involvement on MRI and this resulted in upstaging on Durie-Salmon staging in four patients. SUMMARY/CONCLUSIONS: RSS has limited sensitivity and a significant ionising patient dose. It is a cumbersome procedure taking up to 30 minutes. Whole body MRI gives improved sensitivity and appreciation of anatomic location of disease. It is non-ionising and can be rapidly acquired at low cost. We conclude that whole body MRI is superior to conventional RSS in both the identification and evaluation of extent of bone involvement in multiple myeloma.

scholarly journals Ultrasound-on-chip platform for medical imaging, analysis, and collective intelligence

2021 ◽  
Vol 118 (27) ◽  
pp. e2019339118
Author(s):  
Jonathan M. Rothberg ◽  
Tyler S. Ralston ◽  
Alex G. Rothberg ◽  
John Martin ◽  
Jaime S. Zahorian ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Microelectromechanical Systems ◽  
Collective Intelligence ◽  
Low Cost ◽  
The Body ◽  
Oxide Semiconductor ◽  
Whole Body ◽  
Whole Body Imaging ◽  
Diagnostic Quality ◽  
On Chip

Over the past half-century, ultrasound imaging has become a key technology for assessing an ever-widening range of medical conditions at all stages of life. Despite ultrasound’s proven value, expensive systems that require domain expertise in image acquisition and interpretation have limited its broad adoption. The proliferation of portable and low-cost ultrasound imaging can improve global health and also enable broad clinical and academic studies with great impact on the fields of medicine. Here, we describe the design of a complete ultrasound-on-chip, the first to be cleared by the Food and Drug Administration for 13 indications, comprising a two-dimensional array of silicon-based microelectromechanical systems (MEMS) ultrasonic sensors directly integrated into complementary metal–oxide–semiconductor-based control and processing electronics to enable an inexpensive whole-body imaging probe. The fabrication and design of the transducer array with on-chip analog and digital circuits, having an operating power consumption of 3 W or less, are described, in which approximately 9,000 seven-level feedback-based pulsers are individually addressable to each MEMS element and more than 11,000 amplifiers, more than 1,100 analog-to-digital converters, and more than 1 trillion operations per second are implemented. We quantify the measured performance and the ability to image areas of the body that traditionally takes three separate probes. Additionally, two applications of this platform are described—augmented reality assistance that guides the user in the acquisition of diagnostic-quality images of the heart and algorithms that automate the measurement of cardiac ejection fraction, an indicator of heart health.

scholarly journals Analysis and Research on Human Movement in Sports Scene

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Yan Wang ◽  
Yuchen Zhang ◽  
LinJun Shen ◽  
ShuMing Wang
Keyword(s):  
Body Movement ◽  
Movement Analysis ◽  
Human Movement ◽  
Human Motion ◽  
Whole Body ◽  
Human Motion Analysis ◽  
Analysis Method ◽  
Multilabel Classification ◽  
Movement Process ◽  
Rope Skipping

As a whole-body sport, skipping rope plays an increasingly important role in daily life. In rope-skipping education, due to the lack of professional teachers, the training efficiency of students is low. The rope-skipping monitoring device is heavy and expensive, and the cost of labor statistics and energy consumption are high. In order to quickly analyze the movement process of students and provide correct guidance, this article implements the movement analysis method of the human body movement process. The problem of limb posture analysis in rope skipping is transformed into a multilabel classification problem, a real-time human motion analysis method based on mobile vision is proposed, and the algorithm model is verified in the rope-skipping scene. The experimental results prove that this paper proposes the improved algorithm, which achieved the expected effect. In the analysis of rope-skipping action, the choice of hyperparameters during the experiment is introduced, and it is verified that the proposed ALSTM-LSTM can solve the problem of multilabel classification in the rope-skipping process. The accuracy rate reaches 95.1%, and it can provide the best in all indicators and good performance. It is of great significance for movement analysis and movement quality evaluation during exercise.

A Simple and Inexpensive Clinical Whole Body Counter

1976 ◽  
Vol 15 (05) ◽  
pp. 248-253
Author(s):  
A. K. Basu ◽  
S. K. Guha ◽  
B. N. Tandon ◽  
M. M. Gupta ◽  
M. ML. Rehani
Keyword(s):  
The Body ◽  
Whole Body ◽  
Vitro Assay ◽  
Body Counter ◽  
Optimum Parameters ◽  
Whole Body Counter ◽  
Single Detector ◽  
Background Index ◽  
Iodide Crystal

SummaryThe conventional radioisotope scanner has been used as a whole body counter. The background index of the system is 10.9 counts per minute per ml of sodium iodide crystal. The sensitivity and derived sensitivity parameters have been evaluated and found to be suitable for clinical studies. The optimum parameters for a single detector at two positions above the lying subject have been obtained. It has been found that for the case of 131I measurement it is possible to assay a source located at any point in the body with coefficient of variation less than 5%. To add to the versatility, a fixed geometry for in-vitro counting of large samples has been obtained. The retention values obtained by the whole body counter have been found to correlate with those obtained by in-vitro assay of urine and stool after intravenous administration of 51Cr-albumin.

Visualization of Invasion into the Body and Internal Diffusion of Nanoparticles

2008 ◽  
Vol 396-398 ◽  
pp. 569-572
Author(s):  
Fumio Watari ◽  
Shigeaki Abe ◽  
I.D. Rosca ◽  
Atsuro Yokoyama ◽  
Motohiro Uo ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Fluorescent Microscopy ◽  
The Body ◽  
Internal Diffusion ◽  
Whole Body ◽  
X Ray ◽  
Body Level ◽  
Organ Level ◽  
Level 2 ◽  
Internal Body

Nanoparticles may invade directly into the internal body through the respiratory or digestive system and diffuse inside body. The behavior of nanoparticles in the internal body is also essential to comprehend for the realization of DDS. Thus it is necessary to reveal the internal dynamics for the proper treatments and biomedical applications of nanoparticles. In the present study the plural methods with different principles such as X-ray scanning analytical microscope (XSAM), MRI and Fluorescent microscopy were applied to enable the observation of the internal diffusion of micro/nanoparticles in the (1) whole body level, (2) inner organ level and (3) tissue and intracellular level. Chemical analysis was also done by ICP-AES for organs and compared with the results of XSAM mapping.

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