Document Detail


Plantar loading and cadence alterations with fatigue.
MedLine Citation:
PMID:  10613435     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: The purpose of this investigation was to identify changes in loading characteristics of the foot associated with fatigue during running. METHODS: Nineteen healthy subjects ranging from 20 to 30 yr (mean = 22.3, SD = 2.4) were equipped with the Pedar in-shoe measurement system (Novel GmbH) for the assessment of plantar loading. After acclimation to the treadmill, subjects were progressed through the Ohio State protocol for exercise testing until fatigue was reported using Borg's RPE scale. Six right footsteps were recorded at 150 Hz for each subject's comfortable running pace under normal and fatigued conditions. A series of repeated measures multiple analysis of variance was performed for all dependent variables analyzed in this study including peak force (PF), force-time integral (FTI), peak pressure (PP), and pressure-time integral (PTI) for all regions of the plantar surface. RESULTS: Decreased step time, significantly smaller values under the heel for PP, PF, FTI, CT, and PTI, and trends toward increased medial forefoot loading were identified while subjects were running under fatigued conditions (alpha < 0.05). CONCLUSION: These results suggest that subjects change running technique and plantar surface loading characteristics in response to fatigued conditions through increased cadence, decreased loading of the heel, and increased medial forefoot loading.
Authors:
J D Willson; T W Kernozek
Related Documents :
22188975 - A pulsed injection parahydrogen generator and techniques for quantifying enrichment.
9656895 - The reproducibility of muscle and joint tenderness detection methods and maximum mandib...
23752385 - Pretreatment followed by anaerobic digestion of secondary sludge for reduction of sewag...
19217785 - Plantar pressure relief in the diabetic foot using forefoot offloading shoes.
1760165 - Nasal continuous positive airway pressure: an alternative method for respiratory assist...
1610775 - Noninvasive determination of baroreflex sensitivity in man by means of spectral analysis.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  31     ISSN:  0195-9131     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  1999 Dec 
Date Detail:
Created Date:  2000-01-27     Completed Date:  2000-01-27     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1828-33     Citation Subset:  IM; S    
Affiliation:
Department of Physical Therapy, University of Wisconsin-La Crosse, 54601, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Exercise Test
Fatigue / physiopathology*
Female
Foot / physiology*
Gait / physiology*
Humans
Male
Running / physiology*
Weight-Bearing / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Prevalence of physical inactivity and its relation to social class in U.S. adults: results from the ...
Next Document:  EMG power spectrum analysis of first dorsal interosseous muscle in pianists.