Abstract
Sprawling posture vertebrates have a flexible spine that bends the trunk primarily in the horizontal plane during locomotion. By coordinating cyclical lateral trunk flexion and limb movements, these animals are very mobile and show extraordinary maneuverability. The dynamic and static stability displayed in complex and changing environments are highly correlated with such lateral bending patterns. The axial dynamics of their compliant body can also be critical for achieving energy-efficient locomotion at high velocities. In this paper, lateral undulation is used to characterize the bending pattern. The production of ground reaction forces (GRFs) and the related center of mass (COM) dynamics during locomotion are the fundamental mechanisms to be considered. Mainly based on research on geckos, which show unrestricted movement in three-dimensional space, we review current knowledge on the trunk flexibility and waveforms of lateral trunk movement. We investigate locomotion dynamics and mechanisms underlying the lateral undulation pattern. This paper also provides insights into the roles of this pattern in obtaining flexible and efficient walking, running, and climbing. Finally, we discuss the potential application of lateral undulation patterns to bio-inspired robotics.
Similar content being viewed by others
Abbreviations
- GRFs:
-
Ground reaction forces
- COM:
-
Center of mass
- SLIP:
-
Spring loaded inverted pendulum
- LLS:
-
Lateral leg spring
References
Aerts P, Van DR, Van EL, Duchêne V (2000) Spatio-temporal gait characteristics of the hind-limb cycles during voluntary bipedal and quadrupedal walking in bonobos (Pan paniscus). Am J Physical Anthropol 111(4):503
Altendorfer R, Moore N, Komsuoglu H, Buehler M, Brown JR, Mcmordie D, Saranli U, Full RJ, Koditschek DE (2001) RHex: a biologically inspired hexapod runner. Auton Robot 11(3):207–213
Ashley-Ross MA (1994a) Hindlimb kinematics during terrestrial locomotion in a salamander (Dicamptodon tenebrosus). J Exp Biol 193(1):255–283
Ashley-Ross MA (1994b) Metamorphic and speed effects on hindlimb kinematics during terrestrial locomotion in the salamander Dicamptodon tenebrosus. J Exp Biol 193(1):285
Autumn K (2002) Mechanisms of adhesion in geckos. Integr Comp Biol 42(6):1081–1090
Autumn K, Buehler M, Cutkosky M et al (2005) Robotics in scansorial environments. Proc SPIE 5804:291–302
Autumn K, Hsieh ST, Dudek DM et al (2006) Dynamics of geckos running vertically. J Exp Biol 209(2):260–272
Avery RA, Mueller CF, Smith JA, Bond DJ (1987) The movement patterns of lacertid lizards: speed, gait and pauses in Lacerta vivipara. J Zool 211(1):47–63
Azizi E, Horton JM (2004) Patterns of axial and appendicular movements during aquatic walking in the salamander Siren lacertina. Zoology 107(2): 111–120
Barclay OR (1946) The mechanics of amphibian locomotion. J Exp Biol 23(2):177–203
Bennett WO, Simons RS, Brainerd EL (2001) Twisting and bending: the functional role of salamander lateral hypaxial musculature during locomotion. J Exp Biol 204(11):1979–1989
Bertram JEA, Gutmann A (2009) Motions of the running horse and cheetah revisited: fundamental mechanics of the transverse and rotary gallop. J R Soc Interface 6(35):549–559
Blickhan R (1989) The spring-mass model for running and hopping. J Biomech 22(11–12):1217
Blickhan R, Full RJ (1993) Similarity in multilegged locomotion: bouncing like a monopode. J Comp Physiol A 173(5):509–517
Breithaupt R, Dahnke J, Zahedi K, Hertzberg J, Pasemann F (2002) Robo-Salamander-an approach for the benefit of both robotics and biology. In: 5th International Conference on Climbing and Walking Robots, pp 55–62
Cabelguen J, Ijspeert A, Lamarque S, Ryczko D (2010) Axial dynamics during locomotion in vertebrates: lesson from the salamander. Prog Brain Res 187:149–162
Carrier D (1990) Activity of the hypaxial muscles during walking in the lizard Iguana iguana. J Exp Biol 152(1):453–470
Cavagna GA, Heglund NC, Taylor CR (1977) Mechanical work in terrestrial locomotion: two basic mechanisms for minimizing energy expenditure. Am J Physiol 233(5):243–261
Chen JJ, Peattie AM, Autumn K, Full RJ (2006) Differential leg function in a sprawling posture quadrupedal trotter. J Exp Biol 209(2):249–259
Clark JE, Goldman DI, Chen TS, Full RJ, Koditschek D (2006) Toward a dynamic vertical climbing robot. In Belgium, Brussels: International Conference On Climbing And Walking Robots (CLAWAR), Sep 2006
Clark JE, Goldman DI, Pei-Chun L, Lynch G, Chen TS, Komsuoglu H, Full RJ, Koditschek D (2007) Design of a bio-inspired dynamical vertical climbing robot. In Atlanta, USA: Proceedings of Robotics: Science and Systems, June 2007
Cohen AH (1988) Evolution of the vertebrate central pattern generator for locomotion. In: Cohen AH, Rossignol S, Grillner S (eds) Neural control of rhythmic movements in vertebrates. Wiley Inter-Science, New York, pp 129–166
Crespi A, Karakasiliotis K, Guignard A, Ijspeert AJ (2013) Salamandra robotica II: an amphibious robot to study salamander-like swimming and walking gaits. IEEE T Robot 29(2):308–320
Daan S, Belterman T (1968) Lateral bending in locomotion of some lower tetrapods. Proc Koninklijke Nederlandse Akademie van Wetenschappen Series C 71(3):245–266
Dai ZD, Ji AH (2011) Biomechanical base for bioinspiration of gecko locomotion. Harbin Institute of Technology Press, Harbin
Dai ZD, Yu M, Ji AH, Guo C, Zhang H (2005) Study on tribological characteristics of animals’ driving pads and their bionic design. Chin Mech Eng 16(16):1454–1457
De A, Lynch G, Johnson A, Koditschek D (2011) Motor selection using task specifications and thermal limits. In: IEEE International Conference on Technologies for Robot Applications, 2011
Deban SM, Schilling N (2009) Activity of trunk muscles during aquatic and terrestrial locomotion in Ambystoma maculatum. J Exp Biol 212(18):2949–2959
Delvolvé I, Bem T, Cabelguen JM (1997) Epaxial and limb muscle activity during swimming and terrestrial stepping in the adult newt, Pleurodeles waltl. J Neurophysiol 78(2):638–650
Dickinson MH, Farley CT, Full RJ, Koehl MA, Kram R, Lehman S (2000) How animals move: an integrative view. Science 288(5463):100–106
Edwards JL (1977) The evolution of terrestrial locomotion. In: Hetch M, Goody P, Hetch B (eds) Major patterns in vertebrate evolution. Plenum, New York, pp 553–576
English AW (1980) The functions of the lumbar spine during stepping in the cat. J Morphol 165(1):55–66
Farley CT, Ko TC (1997) Mechanics of locomotion in lizards. J Exp Biol 200(16):2177–2188
Frolich LM, Biewener AA (1992) Kinematic and electromyographic analysis of the functional role of the body axis during terrestrial and aquatic locomotion in the salamander Ambystoma tigrinum. J Exp Biol 162(1):107–130
Full RJ, Koditschek D (1999) Templates and anchors: neuromechanical hypotheses of legged locomotion on land. J Exp Biol 202(23):3325–3332
Full RJ, Tu MS (1991) Mechanics of a rapid running insect: two-, four- and six-legged locomotion. J Exp Biol 156(3):215
Full RJ, Blickhan R, Ting LH (1991) Leg design in hexapedal runners. J Exp Biol 158(1):369–390
Full RJ, Kubow T, Schmitt J, Holmes P, Koditschek D (2002) Quantifying dynamic stability and maneuverability in legged locomotion. Integr Comp Biol 42(1):149–157
Gál JM (1993a) Mammalian spinal biomechanics. I. Static and dynamic mechanical properties of intact intervertebral joints. J Exp Biol 174(1):247–280
Gál JM (1993b) Mammalian spinal biomechanics. II. Intervertebral lesion experiments and mechanisms of bending resistance. J Exp Biol 174:S 3–4): 281
Gambaryan PP (1974) How mammals run: anatomical adaptations. Wiley, New York
Goldman DI, Chen TS, Dudek DM, Full RJ (2006) Dynamics of rapid vertical climbing in a cockroach reveals a template. J Exp Biol 209(15):2990–3000
Hildebrand M (1985) Walking and running. In: Hildebrand M, Bramble DL, Liem KF, Wake DB (eds) Functional vertebrate morphology. Harvard University Press, Cambridge, pp 38–57
Hill WO (1953) Primates: comparative anatomy and taxonomy. Edinburgh University Press, Edinburgh
Ijspeert AJ (2001) A connectionist central pattern generator for the aquatic and terrestrial gaits of a simulated salamander. Biol Cybern 84(5):331–348
Ijspeert AJ (2014) Biorobotics: using robots to emulate and investigate agile locomotion. Science 346(6206):196–203
Ijspeert AJ, Crespi A, Ryczko D, Cabelguen JM (2007) From swimming to walking with a salamander robot driven by a spinal cord model. Science 315(5817):1416–1420
Jenkins FA, Camazine SM (1977) Hip structure and locomotion in ambulatory and cursorial carnivores. J Zool 181(3):351–370
Ji AH, Han LB, Dai ZD (2011) Adhesive contact in animal: morphology, mechanism and bio-inspired application. J Bionic Eng 8(4):345–356
Ji AH, Lei YF, Wang ZY, Dong BZ, Yao N, Dai ZD (2014) Balancing strategy to lateral impact in a rat Rattus norvegicus. J Bionic Eng 59:1249–1257
Jindrich DL, Full RJ (1999) Many-legged maneuverability: dynamics of turning in hexapods. J Exp Biol 202(12):1603–1623
Jusufi A, Goldman DI, Revzen S, RJ Full (2008) Active tails enhance arboreal acrobatics in geckos. P Natl Acad Sci USA 105(11):4215–4219
Karakasiliotis K (2013) Legged locomotion with spinal undulations. PhD thesis, Lausanne: Swiss federal Institute of Technology in Lausanne
Karakasiliotis K, Ijspeert AJ (2009) Analysis of the terrestrial locomotion of a salamander robot. In: 2009 IEEE/RSJ International Conference on Intelligent Robots and Systems
Karakasiliotis K, Schilling N, Cabelguen J, Ijspeert AJ (2013) Where are we in understanding salamander locomotion: biological and robotic perspectives on kinematics. Biol Cybern 107(5):529–544
Karakasiliotis K, Thandiackal R, Melo K, Horvat T, Mahabadi NK, Tsitkov S, Cabelguen JM, Ijspeert AJ (2016) From cineradiography to biorobots: an approach for designing robots to emulate and study animal locomotion. J R Soc Interface 13(119):20151089
Kim S, Asbeck AT, Cutkosky MR, Provancher WR (2015) SpinybotII: climbing hard walls with compliant microspines. In: Seattle, WA: Proceedings, IEEE, ICAR, PP 601–605
Knuesel J, Ijspeert AJ (2011) Effects of muscle dynamics and proprioceptive feedback on the kinematics and CPG activity of salamander stepping. Bmc Neurosci 12(1):1–2
Knuesel H, Geyer H, Seyfarth A (2005) Influence of swing leg movement on running stability. Hum Movement Sci 24(4):532–543
Krause C, Fischer MS (2013) Biodynamics of climbing: effects of substrate orientation on the locomotion of a highly arboreal lizard (Chamaeleo calyptratus). J Exp Biol 216(8):1448–1457
Kukillaya RP, Holmes P (2009) A model for insect locomotion in the horizontal plane: Feedforward activation of fast muscles, stability, and robustness. J Theor Biol 261(2):210–226
Lamarque S, Ryczko D, Didier H, Cabelguen JM (2009) Dynamics of the axial locomotor network in intact, freely moving salamanders. In: 31st International Symposium GRSNC: Breathe, walk and chew—the neural challenge: Abstr. 22
Libby T, Moore TY, Chang-Siu E, Li D, Cohen DJ, Jusufi A, Full RJ (2012) Tail-assisted pitch control in lizards, robots and dinosaurs. Nature 481(7380):181–184
Lynch GA, Rome L, Koditschek D (2011) Sprawl angle in simplified models of vertical climbing: Implications for robots and roaches. Appl Bionics Biomech 8(3–4):441–452
Manoonpong P (2007) Neural preprocessing and control of reactive walking machines: towards versatile artificial perception-action systems: cognitive Technologies, Springer
Manoonpong P, Parlitz U, Wörgötter F (2013) Neural control and adaptive neural forward models for insect-like, energy-efficient, and adaptable locomotion of walking machines. Front Neural Circuit 7(3):12
Martinez MM, Full RJ, Koehl M (1998) Underwater punting by an intertidal crab: a novel gait revealed by the kinematics of pedestrian locomotion in air versus water. J Exp Biol 201(18):2609–2623
Nam W, Seo T, Kim B, Jeon D, Choi K, Kim J (2009) Kinematic analysis and experimental verification on the locomotion of gecko. J Bionic Eng 6(3):246–254
Nyakatura JA, Fischer MS (2010) Functional morphology and three-dimensional kinematics of the thoraco-lumbar region of the spine of the two-toed sloth. J Exp Biol 213(24):4278–4290
Ritter D (1992) Lateral bending during lizard locomotion. J Exp Biol 173(1):1–10
Ritter D (1995) Epaxial muscle function during locomotion in a lizard (Varanus salvator) and the proposal of a key innovation in the vertebrate axial musculoskeletal system. J Exp Biol 198(12):2477–2490
Ritter D (1996) Axial muscle function during lizard locomotion. J Exp Biol 199(11):2499–2510
Roos PJ (1964) Lateral bending in newt locomotion. Proc Kon Ned Akad Wet (C) 67:223–232
Rubin CT, Lanyon LE (1982) Limb mechanics as a function of speed and gait: a study of functional strains in the radius and tibia of horse and dog. J Exp Biol 101(3):187–211
Schilling N, Carrier DR (2009) Function of the epaxial muscles during trotting. J Exp Biol 212(7):1053–1063
Schilling N, Hackert R (2006) Sagittal spine movements of small therian mammals during asymmetrical gaits. J Exp Biol 209(19):3925–3939
Schmiedeler JP (2001) The mechanics of and robotic design for quadrupedal galloping. PhD thesis, Columbus: The Ohio State University
Schmitt J, Holmes P (2000) Mechanical models for insect locomotion: dynamics and stability in the horizontal plane I. Theory. Biol Cybern 83(6):501–515
Schmitt J, Holmes P (2001) Mechanical models for insect locomotion: stability and parameter studies. Physica D Nonlinear Phenomena 156(1–2):139–168
Schmitt J, Garcia M, Razo RC, Holmes P, Full RJ (2002) Dynamics and stability of legged locomotion in the horizontal plane: a test case using insects. Biol Cybern 86(5):343–353
Ting LH, Blickhan R, Full RJ (1994) Dynamic and static stability in hexapedal runners. J Exp Biol 197(6):251
Walker A (1969) The locomotion of the lorises, with special reference to the potto. Afr J Ecol 7(1):1–5
Walter RM, Carrier DR (2002) Scaling of rotational inertia in murine rodents and two species of lizard. J Exp Biol 205(14):2135–2141
Wang ZY, Gu WW, Wu Q, Ji AH, Dai ZD (2010) Morphology and reaction force of toes of geckos freely moving on ceilings and walls. Sci China Technol Sc 53(6):1688–1693
Wang ZY, Wang JT, Ji AH, Zhang YY, Dai ZD (2011) Behavior and dynamics of gecko’s locomotion: the effects of moving directions on a vertical surface. Chin Sci Bull 56(6):573–583
Wang ZY, Ji AH, Endlein T, Li W, Samuel D, Dai ZD (2014) Locomotor kinematics of the gecko (tokay gecko) upon challenge with various inclines. Chin Sci Bull 59(33):4568–4577
Wang W, Wu S, Zhu P, Liu R (2015a) Analysis on the dynamic climbing forces of a gecko inspired climbing robot based on GPL model. In Hamburg, Germany: 2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp 3314–3319
Wang ZY, Cai L, Li W, Ji AH, Wang WB, Dai ZD (2015b) Effect of slope degree on the lateral bending in Gekko gecko. J Bionic Eng 12(2):238–249
Wang ZY, Dai ZD, Ji AH, Ren L, Xing Q, Dai LM (2015c) Biomechanics of gecko locomotion: the patterns of reaction forces on inverted, vertical and horizontal substrates. Bioinspir Biomim 10(1):16019
Zaaf A, Van Damme R, Herrel A, Aerts P (2001) Spatio-temporal gait characteristics of level and vertical locomotion in a ground-dwelling and a climbing gecko. J Exp Biol 204(7):1233–1246
Zhang H (2010) Research on gecko’s moving behavior and developing gecko-like robot. PhD thesis, Nanjing: Nanjing University of Aeronautics and Astronautics
Acknowledgements
The authors thank Dr. Guangming Chen from the University of Aeronautics and Astronautics for his constructive comments on this paper. This work was supported by the National Natural Science of Foundation of China (Grant No. 51375232, 51475230) and the Key Research and Development Plan of Jiangsu Province (Grant No. BE2017766). Poramate Manoonpong acknowledges funding by the Thousand Talents Program of China.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Wang, W., Ji, A., Manoonpong, P. et al. Lateral undulation of the flexible spine of sprawling posture vertebrates. J Comp Physiol A 204, 707–719 (2018). https://doi.org/10.1007/s00359-018-1275-z
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00359-018-1275-z