The influence of sagittal trunk leans on uneven running mechanics.

Journal article

AminiAghdam, S., Blickhan, R. and Karamanidis, Ki. (2020). The influence of sagittal trunk leans on uneven running mechanics. The Journal of Experimental Biology. 224 (1). https://doi.org/10.1242/jeb.228288
AuthorsAminiAghdam, S., Blickhan, R. and Karamanidis, Ki.
AbstractThe role of trunk orientation during uneven running is not well understood. This study compares the running mechanics during the approach step to and the stepdown of a 10-cm expected drop, positioned halfway through a 15-m runway, with that of the level step in twelve participants at a speed of 3.5 m/s while maintaining self-selected (17.7±4.2°; mean±S.D.), posterior (1.8±7.4°) and anterior (26.6±5.6°) trunk leans from the vertical. Our findings reveal that the global (i.e., the spring-mass model dynamics and centre-of-mass height) and local (i.e., knee and ankle kinematics and kinetics) biomechanical adjustments during uneven running are specific to the step nature and trunk posture. Unlike the anterior-leaning posture, running with a posterior trunk lean is characterized with increases in leg angle, leg compression, knee flexion angle and moment, resulting in a stiffer knee and a more compliant spring-leg compared with self-selected condition. In the approach versus level step, reductions in the leg length and stiffness through the ankle stiffness yield lower leg force and centre-of-mass position. Contrariwise, significant increases in the leg length, angle and force, and the ankle moment, reflect in a higher centre-of-mass position during the stepdown. Plus, the ankle stiffness significantly decreases, owing to a substantially increased leg compression. Overall, the stepdown appears to be dominated by centre-of-mass height changes, regardless of having a trunk lean. Observed adjustments during uneven running can be attributed to anticipation of changes to running posture and height. These findings highlight the role of trunk posture in human perturbed locomotion relevant for design and development of exoskeleton or humanoid bipedal robots. [Abstract copyright: © 2020. Published by The Company of Biologists Ltd.]
KeywordsJoint stiffness; Leg stiffness; Spring-mass model; Trunk posture; Uneven running
Year2020
JournalThe Journal of Experimental Biology
Journal citation224 (1)
PublisherThe Company of Biologists
ISSN1477-9145
Digital Object Identifier (DOI)https://doi.org/10.1242/jeb.228288
Web address (URL)https://jeb.biologists.org/content/early/2020/11/26/jeb.228288
Publication dates
Print06 Jan 2021
Online30 Nov 2020
Publication process dates
Deposited01 Dec 2020
Accepted19 Nov 2020
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Open
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Epro, G, McCrum, C, Mierau, A, Leyendecker, M, Brüggemann, G-P and Karamanidis, K (2017). Effect Of Triceps Surae Muscle-Tendon Unit Mechanical Properties On Gait Stability And Adaptability In Older Female Adults. BASES Biomechanics Interest Group (BIG) Meeting 2017. Portsmouth, UK 19 - 19 Apr 2017
Achilles tendon is mechanosensitive in old adults: a 1.5 year resistance training intervention
Epro, G, Mierau, A, Doerner, J, Luetkens, J, Scheef, L, Kukuk, G, Boecker, H, Maganaris, C and Karamanidis, K (2017). Achilles tendon is mechanosensitive in old adults: a 1.5 year resistance training intervention. BASES Biomechanics Interest Group (BIG) Meeting 2017. Portsmouth, UK 19 - 19 May 2017
Matching triceps surae muscle strength and tendon stiffness eliminates age-related differences in drop-jump performance
Koenig, M, Hemmers, S, McCrum, C, Epro, G, Ackermans, TMA, Hartmann, U and Karamanidis, K (2017). Matching triceps surae muscle strength and tendon stiffness eliminates age-related differences in drop-jump performance. 35th International Conference on Biomechanics in Sports. Cologne 14 - 18 Jun 2017
Muscle-tendon adaptation monitoring in elite athletes: Preliminary results from a longitudinal investigation
Epro, G, Koenig, M, McCrum, C, Baedorf, M, Schade, F and Karamanidis, K (2017). Muscle-tendon adaptation monitoring in elite athletes: Preliminary results from a longitudinal investigation. 35th Conference of the International Society of Biomechanics in Sport. Cologne, Germany 14 - 18 Jun 2017
Loading rate and contraction type effects on the human Achilles tendon force-elongation relationship
McCrum, C, Oberländer, KD, Epro, G, Krauss, P, Reeves, N and Karamanidis, K (2017). Loading rate and contraction type effects on the human Achilles tendon force-elongation relationship. 22nd Annual Congress of the European College of Sport Science. Essen, Germany 05 - 08 Jul 2017
Monitoring muscle-tendon adaptation in elite athletes: Preliminary data from a 1-year longitudinal investigation
Koenig, M, Epro, G, McCrum, C, Bädorf, M, Schade, F and Karamanidis, K (2017). Monitoring muscle-tendon adaptation in elite athletes: Preliminary data from a 1-year longitudinal investigation. 22nd annual Congress of the European College of Sport Science (ECSS). Essen 05 - 08 Jul 2017
Achilles tendon mechanosensitivity is preserved in old age: In vivo evidence from a 1.5 years long resistance training intervention
Epro, G, Mierau, A, Doerner, J, Luetkens, J, Scheef, L, Kukuk, G, Boecker, H, Maganaris, C, Brüggemann, G-P and Karamanidis, K (2017). Achilles tendon mechanosensitivity is preserved in old age: In vivo evidence from a 1.5 years long resistance training intervention. 22nd annual Congress of the European College of Sport Science. Essen, Germany 05 - 08 Jul 2017
Loading rate and contraction duration effects on in vivo human Achilles tendon mechanical properties.
McCrum, C, Oberländer, KD, Epro, G, Krauss, P, James, DC, Reeves, N and Karamanidis, K (2017). Loading rate and contraction duration effects on in vivo human Achilles tendon mechanical properties. Clinical Physiology and Functional Imaging. 38 (3), pp. 517-523. https://doi.org/10.1111/cpf.12472
Locomotor stability and adaptation during perturbed walking across the adult female lifespan.
McCrum, C, Epro, G, Meijer, K, Zijlstra, W, Brüggemann, G-P and Karamanidis, K (2016). Locomotor stability and adaptation during perturbed walking across the adult female lifespan. Journal of Biomechanics. 49 (7), pp. 1244-1247. https://doi.org/10.1016/j.jbiomech.2016.02.051
Use of a Lucas-Kanade-Based Template Tracking Algorithm to Examine In Vivo Tendon Excursion during Voluntary Contraction Using Ultrasonography.
Karamanidis, K, Travlou, A, Krauss, P and Jaekel, U (2016). Use of a Lucas-Kanade-Based Template Tracking Algorithm to Examine In Vivo Tendon Excursion during Voluntary Contraction Using Ultrasonography. Ultrasound in Medicine and Biology. 42 (7), pp. 1689-1700. https://doi.org/10.1016/j.ultrasmedbio.2016.02.019
Visual and proprioceptive contributions to postural control of upright stance in unilateral vestibulopathy.
Eysel-Gosepath, K, McCrum, C, Epro, G, Brüggemann, G-P and Karamanidis, K (2016). Visual and proprioceptive contributions to postural control of upright stance in unilateral vestibulopathy. Somatosensory and Motor Research. 33 (2), pp. 72-78. https://doi.org/10.1080/08990220.2016.1178635
Matching participants for triceps surae mechanical properties eliminates age-related differences in drop jump performance
Koenig, M, Hemmers, S, McCrum, C, Epro, G, Ackermans, TMA, Hartmann, U and Karamanidis, K (2016). Matching participants for triceps surae mechanical properties eliminates age-related differences in drop jump performance. 11th Joint Conference on Motor Control & Learning, Biomechanics & Training of the German Society of Sports Sciences. Darmstadt, Germany 28 - 30 Sep 2016
Aging and the effects of a half marathon on Achilles tendon force-elongation relationship.
Ackermans, TMA, Epro, G, McCrum, C, Oberländer, KD, Suhr, F, Drost, MR, Meijer, K and Karamanidis, K (2016). Aging and the effects of a half marathon on Achilles tendon force-elongation relationship. European Journal of Applied Physiology. 116 (11-12), pp. 2281-2292. https://doi.org/10.1007/s00421-016-3482-z
Age-related differences in drop jump performance are eliminated when triceps surae mechanical properties are matched
Koenig, M, Hemmers, S, McCrum, C, Epro, G, Ackermans, TMA, Hartmann, U and Karamanidis, K (2016). Age-related differences in drop jump performance are eliminated when triceps surae mechanical properties are matched. Dutch Society for Movement Sciences (VvBN) PhD Day 2016. Maastricht 09 - 09 Nov 2016
Effect of exercise-induced enhancement of the leg-extensor muscle-tendon unit capacities on ambulatory mechanics and knee osteoarthritis markers in the elderly.
Karamanidis, K, Oberländer, KD, Niehoff, A, Epro, G and Brüggemann, G-P (2014). Effect of exercise-induced enhancement of the leg-extensor muscle-tendon unit capacities on ambulatory mechanics and knee osteoarthritis markers in the elderly. PLoS ONE. 9 (6). https://doi.org/10.1371/journal.pone.0099330