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Items: 44


An instrumented centrifuge for studying mouse locomotion and behaviour under hypergravity.

Smith BJH, Usherwood JR.

Biol Open. 2019 Jun 14;8(6). pii: bio043018. doi: 10.1242/bio.043018.


An extension to the collisional model of the energetic cost of support qualitatively explains trotting and the trot-canter transition.

Usherwood JR.

J Exp Zool A Ecol Integr Physiol. 2019 Apr 29. doi: 10.1002/jez.2268. [Epub ahead of print]


The scaling or ontogeny of human gait kinetics and walk-run transition: The implications of work vs. peak power minimization.

Usherwood JR, Hubel TY, Smith BJH, Self Davies ZT, Sobota G.

J Biomech. 2018 Nov 16;81:12-21. doi: 10.1016/j.jbiomech.2018.09.004. Epub 2018 Sep 17.


The grazing gait, and implications of toppling table geometry for primate footfall sequences.

Usherwood JR, Smith BJH.

Biol Lett. 2018 May;14(5). pii: 20180137. doi: 10.1098/rsbl.2018.0137.


Work minimization accounts for footfall phasing in slow quadrupedal gaits.

Usherwood JR, Self Davies ZT.

Elife. 2017 Sep 14;6. pii: e29495. doi: 10.7554/eLife.29495.


The muscle-mechanical compromise framework: Implications for the scaling of gait and posture.

Usherwood JR.

J Hum Kinet. 2016 Sep 10;52:107-114. doi: 10.1515/hukin-2015-0198. eCollection 2016 Sep 1.


Physiological, aerodynamic and geometric constraints of flapping account for bird gaits, and bounding and flap-gliding flight strategies.

Usherwood JR.

J Theor Biol. 2016 Nov 7;408:42-52. doi: 10.1016/j.jtbi.2016.07.003. Epub 2016 Jul 11.


Locomotor preferences in terrestrial vertebrates: An online crowdsourcing approach to data collection.

Lees J, Gardiner J, Usherwood J, Nudds R.

Sci Rep. 2016 Jul 6;6:28825. doi: 10.1038/srep28825.


Social density processes regulate the functioning and performance of foraging human teams.

King AJ, Myatt JP, Fürtbauer I, Oesch N, Dunbar RI, Sumner S, Usherwood JR, Hailes S, Brown MR.

Sci Rep. 2015 Dec 17;5:18260. doi: 10.1038/srep18260.


Identification of mouse gaits using a novel force-sensing exercise wheel.

Smith BJ, Cullingford L, Usherwood JR.

J Appl Physiol (1985). 2015 Sep 15;119(6):704-18. doi: 10.1152/japplphysiol.01014.2014. Epub 2015 Jul 2.


Matching times of leading and following suggest cooperation through direct reciprocity during V-formation flight in ibis.

Voelkl B, Portugal SJ, Unsöld M, Usherwood JR, Wilson AM, Fritz J.

Proc Natl Acad Sci U S A. 2015 Feb 17;112(7):2115-20. doi: 10.1073/pnas.1413589112. Epub 2015 Feb 2.


Leap and strike kinetics of an acoustically 'hunting' barn owl (Tyto alba).

Usherwood JR, Sparkes EL, Weller R.

J Exp Biol. 2014 Sep 1;217(Pt 17):3002-5. doi: 10.1242/jeb.107169. Epub 2014 Jun 19.


Upwash exploitation and downwash avoidance by flap phasing in ibis formation flight.

Portugal SJ, Hubel TY, Fritz J, Heese S, Trobe D, Voelkl B, Hailes S, Wilson AM, Usherwood JR.

Nature. 2014 Jan 16;505(7483):399-402. doi: 10.1038/nature12939.


Constraints on muscle performance provide a novel explanation for the scaling of posture in terrestrial animals.

Usherwood JR.

Biol Lett. 2013 Jul 3;9(4):20130414. doi: 10.1098/rsbl.2013.0414. Print 2013 Aug 23.


Vaulting mechanics successfully predict decrease in walk-run transition speed with incline.

Hubel TY, Usherwood JR.

Biol Lett. 2013 Jan 16;9(2):20121121. doi: 10.1098/rsbl.2012.1121. Print 2013 Apr 23.


The human foot and heel-sole-toe walking strategy: a mechanism enabling an inverted pendular gait with low isometric muscle force?

Usherwood JR, Channon AJ, Myatt JP, Rankin JW, Hubel TY.

J R Soc Interface. 2012 Oct 7;9(75):2396-402. doi: 10.1098/rsif.2012.0179. Epub 2012 May 9.


Energetically optimal running requires torques about the centre of mass.

Usherwood JR, Hubel TY.

J R Soc Interface. 2012 Aug 7;9(73):2011-5. doi: 10.1098/rsif.2012.0145. Epub 2012 Apr 4.


Microparticle formation after co-culture of human whole blood and umbilical artery in a novel in vitro model of flow.

Holtom E, Usherwood JR, Macey MG, Lawson C.

Cytometry A. 2012 May;81(5):390-9. doi: 10.1002/cyto.a.22010. Epub 2011 Dec 29.


The extraordinary athletic performance of leaping gibbons.

Channon AJ, Usherwood JR, Crompton RH, Günther MM, Vereecke EE.

Biol Lett. 2012 Feb 23;8(1):46-9. doi: 10.1098/rsbl.2011.0574. Epub 2011 Aug 10.


Flying in a flock comes at a cost in pigeons.

Usherwood JR, Stavrou M, Lowe JC, Roskilly K, Wilson AM.

Nature. 2011 Jun 22;474(7352):494-7. doi: 10.1038/nature10164.


Inverted pendular running: a novel gait predicted by computer optimization is found between walk and run in birds.

Usherwood JR.

Biol Lett. 2010 Dec 23;6(6):765-8. doi: 10.1098/rsbl.2010.0256. Epub 2010 May 19.


Two explanations for the compliant running paradox: reduced work of bouncing viscera and increased stability in uneven terrain.

Daley MA, Usherwood JR.

Biol Lett. 2010 Jun 23;6(3):418-21. doi: 10.1098/rsbl.2010.0175. Epub 2010 Mar 24.


Pitch then power: limitations to acceleration in quadrupeds.

Williams SB, Tan H, Usherwood JR, Wilson AM.

Biol Lett. 2009 Oct 23;5(5):610-3. doi: 10.1098/rsbl.2009.0360. Epub 2009 Jun 24.


Inertia may limit efficiency of slow flapping flight, but mayflies show a strategy for reducing the power requirements of loiter.

Usherwood JR.

Bioinspir Biomim. 2009 Mar;4(1):015003. doi: 10.1088/1748-3182/4/1/015003. Epub 2009 Mar 4.


Exploring the mechanical basis for acceleration: pelvic limb locomotor function during accelerations in racing greyhounds (Canis familiaris).

Williams SB, Usherwood JR, Jespers K, Channon AJ, Wilson AM.

J Exp Biol. 2009 Feb;212(Pt 4):550-65. doi: 10.1242/jeb.018093.


Compass gait mechanics account for top walking speeds in ducks and humans.

Usherwood JR, Szymanek KL, Daley MA.

J Exp Biol. 2008 Dec;211(Pt 23):3744-9. doi: 10.1242/jeb.023416.


Phasing of dragonfly wings can improve aerodynamic efficiency by removing swirl.

Usherwood JR, Lehmann FO.

J R Soc Interface. 2008 Nov 6;5(28):1303-7. doi: 10.1098/rsif.2008.0124.


Accounting for elite indoor 200 m sprint results.

Usherwood JR, Wilson AM.

Biol Lett. 2006 Mar 22;2(1):47-50.


Why not walk faster?

Usherwood JR.

Biol Lett. 2005 Sep 22;1(3):338-41.


Biomechanics: no force limit on greyhound sprint speed.

Usherwood JR, Wilson AM.

Nature. 2005 Dec 8;438(7069):753-4.


The mechanics of jumping versus steady hopping in yellow-footed rock wallabies.

McGowan CP, Baudinette RV, Usherwood JR, Biewener AA.

J Exp Biol. 2005 Jul;208(Pt 14):2741-51.


Dynamic pressure maps for wings and tails of pigeons in slow, flapping flight, and their energetic implications.

Usherwood JR, Hedrick TL, McGowan CP, Biewener AA.

J Exp Biol. 2005 Jan;208(Pt 2):355-69.


Gait transition cost in humans.

Usherwood JR, Bertram JE.

Eur J Appl Physiol. 2003 Nov;90(5-6):647-50. Epub 2003 Oct 17.


The aerodynamics of avian take-off from direct pressure measurements in Canada geese (Branta canadensis).

Usherwood JR, Hedrick TL, Biewener AA.

J Exp Biol. 2003 Nov;206(Pt 22):4051-6.


Understanding brachiation: insight from a collisional perspective.

Usherwood JR, Bertram JE.

J Exp Biol. 2003 May;206(Pt 10):1631-42.


Mechanisms of force and power production in unsteady ricochetal brachiation.

Usherwood JR, Larson SG, Bertram JE.

Am J Phys Anthropol. 2003 Apr;120(4):364-72.


The aerodynamics of revolving wings II. Propeller force coefficients from mayfly to quail.

Usherwood JR, Ellington CP.

J Exp Biol. 2002 Jun;205(Pt 11):1565-76.


The aerodynamics of revolving wings I. Model hawkmoth wings.

Usherwood JR, Ellington CP.

J Exp Biol. 2002 Jun;205(Pt 11):1547-64.

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