Assessment of speed of human locomotion using a differential satellite global positioning system.

Détails

ID Serval
serval:BIB_7B28186CCE47
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Assessment of speed of human locomotion using a differential satellite global positioning system.
Périodique
Medicine and Science in Sports and Exercise
Auteur(s)
Schutz Y., Herren R.
ISSN
0195-9131 (Print)
ISSN-L
0195-9131
Statut éditorial
Publié
Date de publication
03/2000
Volume
32
Numéro
3
Pages
642-646
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
PURPOSE: The objective was to explore whether a satellite-based navigation system, global positioning system used in differential mode (DGPS), could accurately assess the speed of running in humans.
METHODS: A subject was equipped with a portable GPS receptor coupled to a receiver for differential corrections, while running outdoors on a straight asphalt road at 27 different speeds. Actual speed (reference method) was assessed by chronometry.
RESULTS: The accuracy of speed prediction had a standard deviation (SD) of 0.08 km x h(-1) for walking, 0.11 km x h(-1) for running, yielding a coefficient of variation (SD/mean) of 1.38% and 0.82%, respectively. There was a highly significant linear relationship between actual and DGPS speed assessment (r2 = 0.999) with little bias in the prediction equation, because the slope of the regression line was close to unity (0.997).
CONCLUSION: the DGPS technique appears to be a valid and inconspicuous tool for "on line" monitoring of the speed of displacement of individuals located on any field on earth, for prolonged periods of time and unlimited distance, but only in specific environmental conditions ("open sky"). Furthermore, the accuracy of speed assessment using the differential GPS mode was improved by a factor of 10 as compared to non-differential GPS.
Mots-clé
Adult, Biomechanics, Humans, Locomotion, Male, Regression Analysis, Running/physiology, Sensitivity and Specificity, Spacecraft, Task Performance and Analysis
Pubmed
Web of science
Création de la notice
21/01/2008 14:08
Dernière modification de la notice
03/03/2018 18:35
Données d'usage