Representing and Identifying Alternative Movement Techniques for Goal-Directed Manual Tasks Woojin Park, Bernard Martin, Su Bang Choi, Mathew Reed, Don B. Chaffin J Biomech., 2005, 38(3):519-27 Differences in motion patterns subserving the same movement goal can be identified qualitatively. These alternatives, which may characterize 'movement techniques' (e.g., the stoop and the squat lifting technique), may be associated with significantly different biomechanical constraints and physiological responses. Despite the widely shared understanding of the significance of alternative movement techniques, quantitative representation and identification of movement techniques have received little attention, especially for three-dimensional whole-body motions. In an attempt to systematically differentiate movement techniques, this study introduces a quantitative index termed joint contribution vector (JCV) representing a motion in terms of contributions of individual joint degrees-of-freedom to the achievement of the task goal. Given a set of uncharacterized (unlabeled) motions represented by joint angle trajectories (motion capture data), the JCV and statistical clustering methods enable automated motion classification to uncover a taxonomy of alternative movement techniques. The results of our motion data analyses show that the JCV was able to characterize and discern stoop and squat lifting motions, and also to identify movement techniques for a threedimensional, whole-body, one-handed load-transfer task. The JCV index would facilitate consideration of alternative movement techniques in a variety of applications, including work method comparison and selection, and human motion modeling and simulation. abs2005_13
Balance Maintenance in Seated Reaches for People ...
Differences in motion patterns subserving the same movement goal can be identified qualitatively. These alternatives, which may characterize 'movement techniques' (e.g., the stoop and the squat lifting technique), may be associated with significantly different biomechanical constraints and physiological responses. Despite ...
Balance Maintenance during Seated Reaches of People with Spinal Cord Injury. Matthew Parkinson ... This possibility was examined using data from a study of the reaching behavior of people ... phase of motion. The location of the center of.
that near-maximal reaches in realistic vehicle driver workspaces are limited by balance rather than ... The data illustrate complex patterns of motion between the ...
There was a problem previewing this document. Retrying... Download. Connect more apps... Try one of the apps below to open or edit this item. Seated Glute.pdf.
Oct 28, 2011 - 1. INTRODUCTION. Inverted indexes are an important and widely used data structure for ... query, for instance Twitter, which is not present few years back is now ... This index- ing scheme provides a high degree of query performance si
There was a problem previewing this document. Retrying... Download. Connect more apps... Try one of the apps below to open or edit this item. Seated Linoln.
Hire Experienced Professionals For Electrical Maintenance In Melbourne.pdf. Hire Experienced Professionals For Electrical Maintenance In Melbourne.pdf.
Nov 6, 2009 - In step (9), the sub-index at root node is split, and the infre- quent part ..... incremental indexing for full-text information retrieval. In VLDB '94: ...
Nov 6, 2009 - on-disk inverted index into two types of sub-indexes. In- verted lists of the terms ... Inverted Index is an important data structure used in ... Permission to make digital or hard copies of all or part of this work for personal or ...
A shift to mobile. Virtual style destination REVOLVEclothing.com has long used Google Product. Listing Ads (PLAs) to attract online shoppers looking for the latest fashions. Realizing that their consumers are increasingly shopping from mobile devices
Small and mid-size businesses are driving Cash Balance growth: 87% of ... Cash Balance Plans: Company Contributions to Employee Retirement Accounts. 7 ..... program that will achieve the plan sponsor's goals while passing all IRS tests ...
The Mumzworld and InfoTrust team started by implementing Google. Analytics Enhanced Ecommerce. Custom data attributes for products and channels helped ...
Ting, L. H. & Macpherson, J. M. A limited set of muscle synergies for force control during a postural task. J Neurophysiol 93 ... A. Platform perturbation kinematics.
Synchronized sensorimotor beta oscillations in motor maintenance behavior. Steven L. Bressler. Substantial evidence supports the idea that the maintenance of ...