Prolonged cycling alters stride time variability and kinematics of a post-cycle transition run in triathletes

Connick, Mark J. and Li, Francois-Xavier (2015) Prolonged cycling alters stride time variability and kinematics of a post-cycle transition run in triathletes. Journal of Electromyography and Kinesiology, 25 1: 34-39. doi:10.1016/j.jelekin.2014.08.009

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Author Connick, Mark J.
Li, Francois-Xavier
Title Prolonged cycling alters stride time variability and kinematics of a post-cycle transition run in triathletes
Journal name Journal of Electromyography and Kinesiology   Check publisher's open access policy
ISSN 1050-6411
1873-5711
Publication date 2015
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.jelekin.2014.08.009
Open Access Status File (Author Post-print)
Volume 25
Issue 1
Start page 34
End page 39
Total pages 6
Place of publication London, United Kingdom
Publisher Elsevier
Collection year 2015
Language eng
Abstract Previous studies have employed relatively short cycling protocols to investigate the effect of cycling on muscle activation and kinematics in running. The aim of this study was to investigate the effect of 3 h of cycling on stride time variability (STV), stride length, tibialis anterior (TA) activation, and lower limb range of motion (ROM) in a transition run. Eight triathletes completed a run-cycle-run protocol. Data were collected from a pre-cycle run and a transition run after 3 h of cycling. STV, stride length and ROM were assessed using three-dimensional motion analysis, and TA activation was recorded using surface electromyography. Results showed that compared with the pre-cycle run triathletes exhibited increased STV (Cohen’s d = 0.95) and shorter strides (d = 0.15) in the transition run (p < 0.05). TA activation and ROM did not change. After 10 min of transition running, ankle and hip ROM significantly increased (d = 0.40 and 0.41 respectively) compared to the beginning of the transition run (p < 0.05) but no other changes were observed. The results suggest that locomotor control and kinematics in a transition run are affected by prolonged cycling and stride time variability is potentially a novel method of evaluating the immediate effect of prolonged cycling on the locomotor control of running.
Keyword Stride length
Tibialis anterior
Electromyography
Running
Neuromuscular
Locomotor control
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online: 16 September 2014.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Human Movement and Nutrition Sciences Publications
 
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Created: Wed, 15 Oct 2014, 15:55:50 EST by Dr Mark Connick on behalf of School of Human Movement and Nutrition Sciences