Frequency domain characteristics of ground reaction forces during walking of young and elderly females

Nicholas Stergiou, Giannis Giakas, Jennifer E. Byrne, Valerie Pomeroy

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Objective. To examine the frequency domain characteristics of the ground reaction forces of young and elderly females during free walking. Design. Independent t-tests were used to examine the frequency content of all three components of the ground reaction force. Background. Frequency domain analysis has the potential to assist in identifying changes in gait that may be masked in the time domain. No research has been done to identify changes in gait due to age-related impairments in the frequency domain. Methods. Ten young and ten elderly females walked at a prescribed speed while ground reaction forces were collected via a force platform. The highest frequency required to reconstruct the 99% of the signal's power in each direction was calculated from the ground reaction forces. Results. The frequency content significantly decreased in the anterior-posterior direction for the young group. No significant differences were found for the other two directions (vertical and mediolateral) between the two groups. The elderly had a significantly higher frequency content compared with the young in the anterior-posterior direction. Conclusions. Ageing differences were detected using the frequency domain analysis for the anterior-posterior direction. It is possible that these differences were the result of the decrease in walking speed associated with the elderly group.

Original languageEnglish (US)
Pages (from-to)615-617
Number of pages3
JournalClinical Biomechanics
Volume17
Issue number8
DOIs
StatePublished - Oct 1 2002

Fingerprint

Walking
Gait
Direction compound
Research

Keywords

  • Ageing
  • Frequency domain analysis
  • Ground reaction forces
  • Walking

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine

Cite this

Frequency domain characteristics of ground reaction forces during walking of young and elderly females. / Stergiou, Nicholas; Giakas, Giannis; Byrne, Jennifer E.; Pomeroy, Valerie.

In: Clinical Biomechanics, Vol. 17, No. 8, 01.10.2002, p. 615-617.

Research output: Contribution to journalArticle

Stergiou, Nicholas ; Giakas, Giannis ; Byrne, Jennifer E. ; Pomeroy, Valerie. / Frequency domain characteristics of ground reaction forces during walking of young and elderly females. In: Clinical Biomechanics. 2002 ; Vol. 17, No. 8. pp. 615-617.
@article{794e8de63a4240b2ac5338158a478232,
title = "Frequency domain characteristics of ground reaction forces during walking of young and elderly females",
abstract = "Objective. To examine the frequency domain characteristics of the ground reaction forces of young and elderly females during free walking. Design. Independent t-tests were used to examine the frequency content of all three components of the ground reaction force. Background. Frequency domain analysis has the potential to assist in identifying changes in gait that may be masked in the time domain. No research has been done to identify changes in gait due to age-related impairments in the frequency domain. Methods. Ten young and ten elderly females walked at a prescribed speed while ground reaction forces were collected via a force platform. The highest frequency required to reconstruct the 99{\%} of the signal's power in each direction was calculated from the ground reaction forces. Results. The frequency content significantly decreased in the anterior-posterior direction for the young group. No significant differences were found for the other two directions (vertical and mediolateral) between the two groups. The elderly had a significantly higher frequency content compared with the young in the anterior-posterior direction. Conclusions. Ageing differences were detected using the frequency domain analysis for the anterior-posterior direction. It is possible that these differences were the result of the decrease in walking speed associated with the elderly group.",
keywords = "Ageing, Frequency domain analysis, Ground reaction forces, Walking",
author = "Nicholas Stergiou and Giannis Giakas and Byrne, {Jennifer E.} and Valerie Pomeroy",
year = "2002",
month = "10",
day = "1",
doi = "10.1016/S0268-0033(02)00072-4",
language = "English (US)",
volume = "17",
pages = "615--617",
journal = "Clinical Biomechanics",
issn = "0268-0033",
publisher = "Elsevier Limited",
number = "8",

}

TY - JOUR

T1 - Frequency domain characteristics of ground reaction forces during walking of young and elderly females

AU - Stergiou, Nicholas

AU - Giakas, Giannis

AU - Byrne, Jennifer E.

AU - Pomeroy, Valerie

PY - 2002/10/1

Y1 - 2002/10/1

N2 - Objective. To examine the frequency domain characteristics of the ground reaction forces of young and elderly females during free walking. Design. Independent t-tests were used to examine the frequency content of all three components of the ground reaction force. Background. Frequency domain analysis has the potential to assist in identifying changes in gait that may be masked in the time domain. No research has been done to identify changes in gait due to age-related impairments in the frequency domain. Methods. Ten young and ten elderly females walked at a prescribed speed while ground reaction forces were collected via a force platform. The highest frequency required to reconstruct the 99% of the signal's power in each direction was calculated from the ground reaction forces. Results. The frequency content significantly decreased in the anterior-posterior direction for the young group. No significant differences were found for the other two directions (vertical and mediolateral) between the two groups. The elderly had a significantly higher frequency content compared with the young in the anterior-posterior direction. Conclusions. Ageing differences were detected using the frequency domain analysis for the anterior-posterior direction. It is possible that these differences were the result of the decrease in walking speed associated with the elderly group.

AB - Objective. To examine the frequency domain characteristics of the ground reaction forces of young and elderly females during free walking. Design. Independent t-tests were used to examine the frequency content of all three components of the ground reaction force. Background. Frequency domain analysis has the potential to assist in identifying changes in gait that may be masked in the time domain. No research has been done to identify changes in gait due to age-related impairments in the frequency domain. Methods. Ten young and ten elderly females walked at a prescribed speed while ground reaction forces were collected via a force platform. The highest frequency required to reconstruct the 99% of the signal's power in each direction was calculated from the ground reaction forces. Results. The frequency content significantly decreased in the anterior-posterior direction for the young group. No significant differences were found for the other two directions (vertical and mediolateral) between the two groups. The elderly had a significantly higher frequency content compared with the young in the anterior-posterior direction. Conclusions. Ageing differences were detected using the frequency domain analysis for the anterior-posterior direction. It is possible that these differences were the result of the decrease in walking speed associated with the elderly group.

KW - Ageing

KW - Frequency domain analysis

KW - Ground reaction forces

KW - Walking

UR - http://www.scopus.com/inward/record.url?scp=0036803206&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036803206&partnerID=8YFLogxK

U2 - 10.1016/S0268-0033(02)00072-4

DO - 10.1016/S0268-0033(02)00072-4

M3 - Article

VL - 17

SP - 615

EP - 617

JO - Clinical Biomechanics

JF - Clinical Biomechanics

SN - 0268-0033

IS - 8

ER -