The effect of cadence on the muscle-tendon mechanics of the gastrocnemius muscle during walking

Brennan, S. F., Cresswell, A. G., Farris, D. J. and Lichtwark, G. A. (2017) The effect of cadence on the muscle-tendon mechanics of the gastrocnemius muscle during walking. Scandinavian Journal of Medicine and Science in Sports, 27 3: 289-298. doi:10.1111/sms.12656


Author Brennan, S. F.
Cresswell, A. G.
Farris, D. J.
Lichtwark, G. A.
Title The effect of cadence on the muscle-tendon mechanics of the gastrocnemius muscle during walking
Journal name Scandinavian Journal of Medicine and Science in Sports   Check publisher's open access policy
ISSN 0905-7188
1600-0838
Publication date 2017-03-01
Year available 2016
Sub-type Article (original research)
DOI 10.1111/sms.12656
Open Access Status DOI
Volume 27
Issue 3
Start page 289
End page 298
Total pages 10
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2017
Language eng
Formatted abstract
Humans naturally select a cadence that minimizes metabolic cost at a constant walking velocity. The aim of this study was to examine the effects of cadence on the medial gastrocnemius (MG) muscle and tendon interaction, and examine how this might influence lower limb energetics. We hypothesized that cadences higher than preferred would increase MG fascicle shortening velocity because of the reduced stride time. Furthermore, we hypothesized that cadences lower than preferred would require greater MG fascicle shortening to achieve increased muscle work requirements. We measured lower limb kinematics and kinetics, surface electromyography of the triceps surae and MG fascicle length, via ultrasonography, during walking at a constant velocity at the participants' preferred cadence and offsets of ±10%, ±20%, and ±30%. There was a significant increase in MG fascicle shortening with decreased cadence. However, there was no increase in the MG fascicle shortening velocity at cadences higher than preferred. Cumulative MG muscle activation per minute was significantly increased at higher cadences. We conclude that low cadence walking requires more MG shortening work, while MG muscle and tendon function changes little for each stride at higher cadences, driving up cumulative activation costs due to the increase in steps per minute
Keyword Locomotion energetics
Mechanical power
Cadence
Walking
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Human Movement and Nutrition Sciences Publications
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Mon, 22 Feb 2016, 19:42:45 EST by Dominic James Farris on behalf of School of Human Movement and Nutrition Sciences