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Keywords: Gait
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Journal Articles
J Exp Biol (2022) 225 (6): jeb243104.
Published: 18 March 2022
..., and from most energy expended to least energy expended. Only 7/15 participants had the same rankings for their preferences and perceived energy expenditure. Our results suggest that energy expenditure is not the only factor influencing a person's conscious gait choices. © 2022. Published by The Company...
Journal Articles
J Exp Biol (2022) 225 (Suppl_1): jeb243235.
Published: 8 March 2022
...Eric J. McElroy; Michael C. Granatosky ABSTRACT The difficulty of quantifying asymmetrical limb movements, compared with symmetrical gaits, has resulted in a dearth of information concerning the mechanics and adaptive benefits of these locomotor patterns. Further, no study has explored...
Journal Articles
J Exp Biol (2022) 225 (Suppl_1): jeb243254.
Published: 8 March 2022
.... M. N. ( 1984 ). Elastic energy stores in running vertebrates . Am. Zool. 24 , 85 - 94 . 10.1093/icb/24.1.85 Alexander , R. M. N. ( 1989 ). Optimization and gaits in the locomotion of vertebrates . Physiol. Rev. 69 : 1199 - 1227 . 10.1152/physrev.1989.69.4.1199...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (1): jeb242305.
Published: 7 January 2022
... pitching moment with horizontal force couples of the beak, feet and tail. Vertical Branch Dynamics Torque Gait Locomotion National Science Foundation http://dx.doi.org/10.13039/100000001 0840950 GRFP-1256065 041233 Specialization for scansorial locomotion appears in every...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (22): jeb242813.
Published: 26 November 2021
...Olaf Ellers; Melody Khoriaty; Amy S. Johnson ABSTRACT Sea stars have slower crawling and faster bouncing gaits. Both speed and oscillation amplitude increase during the transition from crawling to oscillating. In the bouncy gait, oscillating vertical velocities precede oscillating horizontal...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (11): jeb217463.
Published: 8 June 2021
... become less athletic during their evolution; however, there are multiple evolutionary solutions to the constraints associated with giant size. Scaling Muscle Gait Effective mechanical advantage Maximal speed Two patterns prevail when surveying the evolution of legged vertebrates on land...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (6): jeb232850.
Published: 18 March 2021
...Geoffrey T. Burns; Richard Gonzalez; Ronald F. Zernicke ABSTRACT Runners are commonly modeled as spring–mass systems, but the traditional calculations of these models rely on discrete observations during the gait cycle (e.g. maximal vertical force) and simplifying assumptions (e.g. leg length...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (5): jeb228296.
Published: 9 March 2021
... empirical MOI were not reported. It was also unclear whether MOI affects gait energetics at slow speeds. Here, I show that a particular normalization of the pitch moment of inertia (the Murphy number) has opposite effects on walking and running energetics. During walking, simultaneous forelimb and hindlimb...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (2): jeb225532.
Published: 15 January 2021
...Reinhard Blickhan; Emanuel Andrada; Eishi Hirasaki; Naomichi Ogihara ABSTRACT Across a wide range of Froude speeds, non-human primates such as macaques prefer to use grounded and aerial running when locomoting bipedally. Both gaits are characterized by bouncing kinetics of the center of mass...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (14): jeb220319.
Published: 30 July 2020
.... Gait Proleg Locomotion Climbing Motor control Most legged terrestrial animals change their gait (i.e. stepping pattern) to accommodate different substrates, carrying loads, speeds and inclines. For articulated animals such as vertebrates and adult insects, changes in gait (e.g. from walking...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (14): jeb224360.
Published: 28 July 2020
... walking of macaques. Locomotion Gait Evolution Ape Quadrupedal Chimpanzees, bonobos and gorillas are unique among primates in their predominant use of knuckle-walking hand postures when terrestrial. Why, when and how many times this peculiar locomotor hand posture evolved has been...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (13): jeb224113.
Published: 1 July 2020
...Peter C. Raffalt; Jenny A. Kent; Shane R. Wurdeman; Nick Stergiou ABSTRACT During locomotion, humans change gait mode between walking and running as locomotion speed is either increased or decreased. Dynamical systems theory predicts that the self-organization of coordinated motor behaviors...
Journal Articles
J Exp Biol (2019) 222 (24): jeb198226.
Published: 18 December 2019
... applied a novel, high-resolution bio-logging tag (ITAG) to seven veined squid, Loligo forbesii , in a controlled experimental environment to quantify their short-term (24 h) behavioral patterns. Tag accelerometer, magnetometer and pressure data were used to develop automated gait classification algorithms...
Journal Articles
J Exp Biol (2019) 222 (17): jeb202895.
Published: 3 September 2019
... – the remaining energy is, in a sense, wasted. The majority of this wasted energy is expended to support the bodyweight and redirect the center of mass during the stance phase of gait. An order of magnitude less energy is expended to brake and accelerate the swinging leg. Accordingly, most devices designed...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (14): jeb202093.
Published: 16 July 2019
... state could be severely disabling in this context, and necessitate conservative strategies to be continually employed in order to maintain balance. Further investigation of the strength of the relationship between COM dynamics and foot placement at different points in the gait cycle, alongside...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (13): jeb197228.
Published: 9 July 2019
...Andrew K. Yegian; Yanish Tucker; Stephen Gillinov; Daniel E. Lieberman ABSTRACT Stereotypically, walking and running gaits in humans exhibit different arm swing behavior: during walking, the arm is kept mostly straight, while during running, the arm is bent at the elbow. The mechanism...
Journal Articles
J Exp Biol (2019) 222 (10): jeb198325.
Published: 23 May 2019
... stiffness to preserve their center-of-mass mechanics. We did not estimate center-of-mass mechanics in this study; nevertheless, our estimates of hindlimb stiffness suggest that goats exhibit a different behavior. This study offers new insight into mechanisms that allow quadrupeds to modulate their gait...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (24): jeb178897.
Published: 10 December 2018
... 15 10 2018 In the present study, smooth gait sequences without stumbling and distraction were selected for further analysis. These were classified as a symmetrical grounded run for duty factor ≥0.5 or a symmetrical aerial run for duty factor <0.5. The selections resulted in a sample of 76...
Journal Articles
J Exp Biol (2018) 221 (22): jeb189142.
Published: 16 November 2018
... ) Competing interests The authors declare no competing or financial interests. 22 7 2018 26 9 2018 © 2018. Published by The Company of Biologists Ltd 2018 http://www.biologists.com/user-licence-1-1/ References Alexander , R. M. ( 1989 ). Optimization and gaits...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (18): jeb174268.
Published: 25 September 2018
... with certain gaits can enable efficient, stable locomotion; however, switching gaits requires complex information flow between and coordination of an animal's limbs. We show here that upon losing two legs, spiders can switch to a novel, more statically stable gait, or use temporal adjustments without a gait...
Includes: Supplementary data