Running perturbations reveal general strategies for step frequency selection

Journal of Applied Physiology
Kristine L SnyderJ Maxwell Donelan

Abstract

Recent research has suggested that energy minimization in human walking involves both a fast preprogrammed process and a slow optimization process. Here, we studied human running to test whether these two processes represent control mechanisms specific to walking or a more general strategy for minimizing energetic cost in human locomotion. To accomplish this, we used free response experiments to enforce step frequency with a metronome at values above and below preferred step frequency and then determined the response times for the return to preferred steady-state step frequency when the auditory constraint was suddenly removed. In forced response experiments, we applied rapid changes in treadmill speed and examined response times for the processes involved in the consequent adjustments to step frequency. We then compared the dynamics of step frequency adjustments resulting from the two different perturbations to each other and to previous results found in walking. Despite the distinct perturbations applied in the two experiments, both responses were dominated by a fast process with a response time of 1.47 ± 0.05 s with fine-tuning provided by a slow process with a response time of 34.33 ± 0.50 s. The dynamics of the processes u...Continue Reading

References

Nov 1, 1977·The American Journal of Physiology·G A CavagnaC R Taylor
Apr 1, 1979·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·J W BellvilleD M Wiberg
Apr 15, 1978·European Journal of Applied Physiology and Occupational Physiology·M Y Zarrugh, C W Radcliffe
Jun 1, 1991·The Journal of Physiology·G A CavagnaC Detrembleur
May 22, 1990·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·T McGeer
Oct 1, 1989·Physiological Reviews·R M Alexander
Jul 1, 1983·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·M P KaufmanJ H Mitchell
Jan 1, 1982·Medicine and Science in Sports and Exercise·P R Cavanagh, K R Williams
Jan 1, 1994·European Journal of Applied Physiology and Occupational Physiology·J MercierC Préfaut
Oct 1, 1993·Medicine and Science in Sports and Exercise·P A FarrellD L Costill
Sep 26, 2001·Proceedings. Biological Sciences·J M DonelanA D Kuo
Feb 25, 2003·Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society·Marc P Kaufman, Shawn G Hayes
Jun 1, 1995·Journal of Motor Behavior·K J HoltJ Hamill
Dec 5, 2003·Progress in Brain Research·Keir G Pearson
Nov 19, 2004·Nature·Dennis M Bramble, Daniel E Lieberman
Feb 2, 2006·The Journal of Experimental Biology·Anne K GutmannJohn E A Bertram
Sep 4, 2007·The Journal of Experimental Biology·Brian R Umberger, Philip E Martin
Feb 15, 2011·Journal of Biomechanics·Christopher J Arellano, Rodger Kram
Mar 12, 2011·Journal of Applied Physiology·Mark SnaterseJ Maxwell Donelan
May 27, 2011·The Journal of Experimental Biology·Kristine L Snyder, Claire T Farley

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Citations

Feb 15, 2015·European Journal of Applied Physiology·Jean-René Lacour, Muriel Bourdin
Oct 19, 2016·Medicine and Science in Sports and Exercise·Wouter HoogkamerRodger Kram
Jul 13, 2016·The Journal of Experimental Biology·Jan Stenum, Julia T Choi
Mar 1, 2019·Journal of Applied Physiology·Aitor Fernández MenéndezDavide Malatesta
Dec 18, 2013·Journal of Neurophysiology·Molly A WellinghoffJesse C Dean
Aug 24, 2019·Biomedical Engineering Online·Jie YaoYubo Fan
Jun 24, 2017·Journal of Neurophysiology·Jeremy D WongJ Maxwell Donelan
Jan 17, 2021·Journal of Sport and Health Science·Maurice MohrBenno M Nigg
Jun 7, 2014·The Journal of Experimental Biology·Renato PagliaraJ Maxwell Donelan

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