The implications of time on the ground on running economy: less is not always better.
Biomechanics
Energy cost
Running form
Self-optimization
Journal
The Journal of experimental biology
ISSN: 1477-9145
Titre abrégé: J Exp Biol
Pays: England
ID NLM: 0243705
Informations de publication
Date de publication:
18 03 2019
18 03 2019
Historique:
received:
10
09
2018
accepted:
14
02
2019
pubmed:
23
2
2019
medline:
1
5
2020
entrez:
22
2
2019
Statut:
epublish
Résumé
A lower duty factor (DF) reflects a greater relative contribution of leg swing versus ground contact time during the running step. Increasing time on the ground has been reported in the scientific literature to both increase and decrease the energy cost (EC) of running, with DF reported to be highly variable in runners. As increasing running speed aligns running kinematics more closely with spring-mass model behaviours and re-use of elastic energy, we compared the centre of mass (COM) displacement and EC between runners with a low (DF
Identifiants
pubmed: 30787136
pii: jeb.192047
doi: 10.1242/jeb.192047
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2019. Published by The Company of Biologists Ltd.
Déclaration de conflit d'intérêts
Competing interestsThe authors declare no competing or financial interests.