NDLI: Influence of 2D and 3D body segment models on energy calculations during kinematic analysis of running

Content Provider	Springer Nature Link
Author	Metzler, Verena Arampatzis, Adamantios Brüggemann, Gert Peter
Copyright Year	2001
Abstract	The aims of the present study were: (1) to examine the influence of two-dimensional (2D) and three-dimensional (3D) analysis on the body's total energy during the support phase of running, and (2) to examine the influence of the choice of anthropometric models on the body's total energy during running. A total of 14 runners participated in the investigation [mean (SD) height: 1.83 (0.03) m, body mass: 79.67 (5.65) kg]. Two genlocked high-speed cameras (120 Hz) filmed each athlete's movement during single-foot ground contact. The exact support time of the athletes was measured with a Kistler force plate (sampling frequency: 1000 Hz). The masses and moments of inertia of the various segments were estimated using the 2D and 3D models of Hanavan (1964) as well as the 3D model of Zatsiorsky et al. (1984).The influence of the 2D and 3D analysis on the calculations was evaluated by comparing of the total energies calculated using Hanavan's 2D and 3D models. The influence of the choice of the anthropometric model on the calculations was checked by comparing the results obtained using the Hanavan 3D model and those obtained using the 3D model of Zatsiorsky et al. (1984). The data show us that 2D and 3D analyses produce similar energy values during the entire support phase of running (only very small percentage energy differences were observed: e.g. from 0.23% for the energy of the body at the first contact with the ground, up to 0.31% for the energy of the body at the time the athlete leaves the ground, E TO). In addition, calculations made using the 3D models of Hanavan and Zatsiorsky also produced similar results for energy values (energy differences from 0.33% for energy minimum, up to 0.8% for E TO). It can be assumed, therefore, that neither the choice of the anthropometric model nor the calculations made on the basis of 3D coordinates are limiting factors in the calculation of body total energies for running.
Starting Page	337
Ending Page	341
Page Count	5
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	86
Issue Number	4
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2014-04-12
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Physiology Occupational Medicine/Industrial Medicine Sports Medicine
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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