Contribution of blood oxygen and carbon dioxide sensing to the energetic optimization of human walking
Abstract
Human gait adaptation implies that the nervous system senses energetic cost, yet this signal is unknown. We tested the hypothesis that the blood gas receptors sense cost for gait optimization by controlling blood O2and CO2with step frequency as people walked. At the simulated energetic minimum, ventilation and perceived exertion were lowest, yet subjects preferred walking at their original frequency. This suggests that blood gas receptors are not critical for sensing cost during gait.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 01, 2017
- Source ID
- 10.1152/jn.00195.2017
Entities
People
- J Maxwell Donelan
- Jeremy D. Wong
- Jessica C Selinger
- Shawn M. O’connor
Organizations
- Army Research Office
- Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada
- Michael Smith Foundation for Health Research