Meeting Abstract 105-4 Saturday, Jan. 6 14:15 – 14:30 Does IGF-1 influence growth and cellular aging in house sparrows ( Passer domesticus )? SIRMAN, A/E*; KUCERA, A/C; VANGORDER-BRAID, J/T; LENDVAI, A/Z; HEIDINGER, B/J; North Dakota State University; North Dakota State University; North Dakota State University; University of Debrecen; North Dakota State University aubrey.sirman@ndsu.edu Correlational and experimental studies […]
sessions: Session 105
Do Plasma Levels of α-MSH or Steroid Hormones Correlate across Lizard Populations Varying in Melanization
Meeting Abstract 105-1 Saturday, Jan. 6 13:30 – 13:45 Do Plasma Levels of α-MSH or Steroid Hormones Correlate across Lizard Populations Varying in Melanization? SEDDON, RJ; HEWS, DK*; Indiana State Univ.; Indiana State Univ. diana.hews@indstate.edu The concept of hormonal pleiotropy suggests facilitated, or constrained, evolution among a suite of hormone-mediated traits, and the melanocortin system has been […]
Comparative assessment reveals widespread capacity for androgenic signaling across peripheral tissues
Meeting Abstract 105-7 Saturday, Jan. 6 15:00 – 15:15 Comparative assessment reveals widespread capacity for androgenic signaling across peripheral tissues SCHUPPE, ER*; FUXJAGER, MJ; UNIVERSITY, Wake; Wake Forest University schuer15@wfu.edu Androgenic hormones act through androgen receptors (AR) to mediate many physiological processes in vertebrates. While the prevailing dogma is that ARs are expressed in nearly all nucleated […]
The indiscrete walk-run transition and skewed forces of young children match peak power minimization, as is suitable for short bipeds
Meeting Abstract 105-7 Sunday, Jan. 6 15:00 – 15:15 The indiscrete walk-run transition and skewed forces of young children match peak power minimization, as is suitable for short bipeds USHERWOOD, JR; The Royal Veterinary College jusherwood@rvc.ac.uk https://jimusherwoodresearch.com/ The muscles of smaller animals, with their briefer stance times, are disproportionately more challenged – compared with larger animals – […]
Substrate Stiffness Affects the Coordinated Landing of Rhinella marina
Meeting Abstract 105-2 Sunday, Jan. 6 13:45 – 14:00 Substrate Stiffness Affects the Coordinated Landing of Rhinella marina DUMAN, AJ*; AZIZI, E; Univ. of California, Irvine; Univ. of California, Irvine aduman@uci.edu The musculoskeletal system is responsible for safely dissipating energy associated with locomotion. Rapid decelerations of the body and dissipation of mechanical energy are common across modes […]
Modelling the effect of long axis rotation on hindlimb moment arms in the red-legged running frog Kassina maculata
Meeting Abstract 105-1 Sunday, Jan. 6 13:30 – 13:45 Modelling the effect of long axis rotation on hindlimb moment arms in the red-legged running frog Kassina maculata BASU, CK*; RICHARDS, CT; Royal Veterinary College; Royal Veterinary College cbasu@rvc.ac.uk Frogs exhibit a varied suite of locomotor behaviours. Intrinsic to this repertoire is the property of selected joints to […]
Generalized Model of Locomotion
Meeting Abstract 105-4 Sunday, Jan. 6 14:15 – 14:30 Generalized Model of Locomotion ANTONIAK, GJ*; BISWAS, T; CORTES, N; SIKDAR, S; BHANDAWAT, V; Duke University; Loyola University; George Mason University; George Mason University; Duke University gja8@duke.edu The movement of the body during legged locomotion can be modeled using simple mechanical models such as the spring-loaded inverted pendulum […]
Does the Cost of Bipedal Walking Increase as the Square of Speed
Meeting Abstract 105-6 Sunday, Jan. 6 14:45 – 15:00 Does the Cost of Bipedal Walking Increase as the Square of Speed? LEE, D/V*; ISAACS, M/R; University of Nevada, Las Vegas; University of Nevada, Las Vegas david.lee@unlv.edu Bipedal walking is a particularly economical gait for humans and it is conventionally modeled by the inverted-pendulum construct of a rigid […]
Comparative biomechanics of horizontal, fine-branch locomotion in lizards Part 1
Meeting Abstract 105-3 Sunday, Jan. 6 14:00 – 14:15 Comparative biomechanics of horizontal, fine-branch locomotion in lizards: Part 1. KNIGHT, K.C.*; LEE, D.V.; Univ. of Nevada, Las Vegas; Univ. of Nevada, Las Vegas kit.knight@unlv.edu https://www.linkedin.com/in/kit-knight-a7a40193/ Squamates compromise the most speciose tetrapod order and move about their environments in many different ways. Evolutionary questions regarding structure-function relationships to […]
An optimal control model of bipedal leg swing for predicting gait duty factor in cursorial birds
Meeting Abstract 105-5 Sunday, Jan. 6 14:30 – 14:45 An optimal control model of bipedal leg swing for predicting gait duty factor in cursorial birds HUBICKI, CM*; DALEY, MA; Florida State University; Royal Veterinary College hubicki@eng.famu.fsu.edu http://www.christianhubicki.com Bipedal runners, when changing their speed, can theoretically choose many combinations of stride length (SL), stride frequency (SF) and duty […]
