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Eastern Michigan University

The examination of control entropy (CE) of triaxial accelerometry and lactate threshold in runners during treadmill exercise

Abstract

dc:description.abstract

<p>The purpose of this study was to determine if the blood lactate threshold could be identified through the visual examination of the control entropy of high-resolution accelerometry in intercollegiate endurance runners (n=7).</p> <p>In procedures approved by the Eastern Michigan University College of Health and Human Services Human Subject Review Board, runners performed two lactate threshold tests to determine the relationship between the pace of running and the blood lactate concentration. High-resolution accelerometry (HRA) data as well as the metabolic cost of exercise was also collected during these trials.</p> <p>Control entropy (CE) analysis was conducted on the HRA of each individual plane of motion. Visual examination of the CE of the accelerations of the vertical and medio-lateral planes of motion revealed a relationship with the decline of CE, indicative of constraint, at paces which corresponded with an increase in blood lactate concentration of 1mmol/L above baseline.</p>

Degree

thesis:*
Name thesis:degree_name
Master of Science (MS)
Level thesis:degree_level
Open Access Thesis
Discipline thesis:degree_discipline
Health Promotion and Human Performance
Year
2008

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Busa, Michael A
Contributors dc:contributor
  • Stephen J McGregor, Ph.D., Chair
  • Erik Bollt, Ph.D.
  • Christopher Herman, Ph.D

Subjects

dc:subject × 5

Identifiers

dc:identifier.*
Repository record dc:identifier
https://commons.emich.edu/theses/222
OAI identifier oai:identifier
oai:commons.emich.edu:theses-1221

Chain of custody

source
Harvested from
Eastern Michigan University
Base URL
commons.emich.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Busa, Michael A. The examination of control entropy (CE) of triaxial accelerometry and lactate threshold in runners during treadmill exercise. Open Access Thesis thesis, 2008. https://commons.emich.edu/theses/222