I have a broad interest in understanding the biomechanics, energetics, and balance of human and animal locomotion. Current projects focus on four main areas:
- Locomotor Training: develop training interventions aimed at improving muscle-tendon function, economy, and balance.
- Stability and Muscle-Tendon Mechanics: investigate how the intrinsic properties of muscle and tendon contribute to stability in response to perturbations.
- Assistive Devices: engineer and test devices that reduce metabolic cost, with implications for rehabilitative gait training strategies in older adults and in individuals with balance disorders.
- Human Performance: advance our understanding of locomotion biomechanics and apply these insights to improve performance in the context of athletics, space-flight, elderly, etc.
Recent Publications and Research Activity
Rose VL & Arellano CJ (2021). Simple models highlight differences in the walking biomechanics of young children and adults. https://doi.org/10.1242/jeb.243040
Featured in the November 2021 issue of “Inside JEB”: https://doi.org/10.1242/jeb.243739
Vega D & Arellano CJ (2021). Using a simple rope-pulley system that mechanically couples the arms, legs, and treadmill reduces the metabolic cost of walking. Journal of NeuroEngineering and Rehabilitation. https://doi.org/10.1186/s12984-021-00887-3
Thomas SA, Vega D & Arellano CJ (2021). Do humans exploit the metabolic and mechanical benefits of arm swing across slow to fast walking speeds? Journal of Biomechanics. https://doi.org/10.1016/j.jbiomech.2020.110181
Arellano, C. J., McReynolds, O. B., & Thomas, S. A. (2020). A low-cost method for carrying loads during human walking. The Journal of Experimental Biology, 223(Pt 23). http://doi.org/10.1242/jeb.216119
Snyder, K. L., Hoogkamer, W., Triska, C., Taboga, P., Arellano, C. J., & Kram, R. (2020). Effects of course design (curves and elevation undulations) on marathon running performance: a comparison of Breaking 2 in Monza and the INEOS 1:59 Challenge in Vienna. Journal of Sports Sciences, 1–6. http://doi.org/10.1080/02640414.2020.1843820
Arellano CJ, Gidmark NJ, Konow N & Roberts TJ(2019). Tunable tendons: elastic energy storage in aponeuroses varies with transverse strain in vivo. Proceedings of the Royal Society B: Biological Sciences. 286 (1900)
Hoogkamer W, Snyder KL, & Arellano CJ (2019). Reflecting on Eliud Kipchoge's Marathon World Record: An update to our model of cooperative drafting and its potential for a sub-2-hour performance.Sports Medicine.49 (2): 167-170
Hoogkamer W, Snyder KL, & Arellano CJ (2018). Modeling the benefits of cooperative drafting: Is there an optimal strategy to facilitate a sub-2-hour marathon performance. Sports Medicine.48 (12): 2859-2867.
Hoogkamer W, Kram R, & Arellano CJ (2017). Author’s Reply to Candau et al.: Comment on: “How biomechanical improvements in running economy could break the 2-hour marathon barrier”. Sports Medicine. 47 (11): 2405-2407
Hoogkamer W, Kram R, & Arellano CJ (2017). How biomechanical improvements in running economy can break the 2-hour marathon barrier. Sports Medicine. 47 (9): 1739-1750. Featured in the “New York Times” and other national/international media outlets.
Arellano CJ, Gidmark NJ, Konow N, Azizi E, & Roberts TJ (2016). Determinants of aponeurosis shape change during muscle contraction. Journal of Biomechanics, doi: 10.1016/j.jbiomech.2016.04.022
Arellano CJ, Caha D, Henessey JE, Ioannis, A, Baudry S, & Enoka RM (2016). Fatigue-induced adjustment in antagonist coactivation by old adults during a steadiness task. Journal of Applied Physiology, doi: 10.1152/japplphysiol.00908.2015
Arellano CJ, McDermott WJ, Kram R, & Grabowski AG (2015). Effect of running speed and leg prostheses on mediolateral foot placement and its variability. PloS One. doi:10.1371/journal.pone.0115637
Arellano CJ & Kram R (2014). Partitioning the metabolic cost of human running: A task-by-task approach. Integrative and Comparative Biology. 54 (6): 1084-98.
Arellano CJ & Kram R (2014). On the metabolic cost of human running: is swinging the arms worth it? Journal of Experimental Biology. 217 (14): 2456-61. Featured in the “New York Times” and other national/international media outlets.
Look NE, Arellano CJ, Grabowski A, McDermott B, Kram R, & Bradley E (2013). Nonlinear dynamics of running: Speed, stability, symmetry and the effects of leg amputations. Chaos. 23:043131.
Arellano CJ & Kram R (2012). The energetic cost of maintaining lateral balance during human running. Journal of Applied Physiology. 112: 427-434.
Kram R, Arellano CJ, & Franz JR (2011). The metabolic cost of locomotion: muscle by muscle. Exercise and Sports Science Reviews. 39(2): 57-58.
Arellano CJ & Kram R (2011). The effects of step width and arm swing on energetic cost and lateral balance during running. Journal of Biomechanics. 44(7): 1291-95.
Arellano CJ, Layne CS, O’Connor DP, & Kurz MJ (2009). The independent effect of added mass on the stability of the sagittal plane leg kinematics during steady-state human walking. Journal of Experimental Biology. 212(12): 1965-70.
Arellano CJ, Layne CS, O’Connor DP, Scott-Pandorf M, & Kurz MJ (2009). Does load carrying influence sagittal plane locomotive stability? Medicine and Science in Sports and Exercise.41(3): 620-27.
Kurz MJ, Scott-Pandorf M, Arellano CJ, Olsen D, & Whittaker G (2008). The penguin waddling gait pattern has a more consistent step width than step length. Journal of Theoretical Biology. 252(2): 272-76.
Kurz MJ, Judkins TN, Arellano CJ, & Scott-Pandorf M (2008). A passive dynamic walking robot that has a deterministic nonlinear gait. Journal of Biomechanics. 41(6): 1310-16.
Kurz MJ, Pothakos K, Jamaluddin S, Scott-Pandorf M, Arellano CJ, & Lau YS (2007). A chronic mouse model of Parkinson’s disease has a reduced gait pattern certainty. Neuroscience Letters. 429(1): 39-42.
B.S. in Mechanical Engineering with concentration in Biomedical Engineering at University of Texas-Austin, 2003
M.S. in Exercise Science at University of Houston, 2007
Ph.D. in Integrative Physiology at University of Colorado Boulder, 2012