Data and code from: Faster fowl fall frequently: speed and force regulation during turning maneuvers by guinea fowl on high and low friction terrains
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This repository contains MATLAB code and data files for analyzing the biomechanics of turning in guinea fowl (Numida meleagris) across high and low friction terrain conditions. The analysis investigates how birds modulate ground reaction forces, limb posture, and body center of mass dynamics during straight runs and turns on high-friction (control) and low-friction (slippery) surfaces. The files contain ground reaction forces, center of pressure, and body center of mass (CoM) trajectories from guinea fowl as they navigated straight and 90-degree turning runways, on high and low friction surfaces. The data and code are associated with the paper: âFaster fowl fall frequently: speed and force regulation during turning maneuvers by guinea fowl on high and low friction terrainsâ, and all the specific details of the methods are explained in further detail in that paper. , Materials and Methods [These methods are from the associated manuscript, therefore references to tables, figures and supplemental information are for the associated manuscript. However, the dataset and code here fully reproduces the statistical analysis described. See the README file] Animals and training: Seven helmeted guinea fowl (Numida meleagris, 4 males, 3 females) were used in this study, which were hatched and reared at the Royal Veterinary College (RVC). Sample size is based on effect size estimates from previous studies on ostriches turning and guinea fowl on slippery terrain (Jindrich et al. 2007; Clark and Higham 2011). Eight birds were initially trained, but one animal was excluded from the analysis because it refused to cross slippery terrain and therefore had an incomplete dataset. At the time of testing, the guinea fowl were 4 years old with body mass 1.89 ± 0.21 kg and standing hip height 17.53 ± 2.38cm (mean ± s.d). Primary feathers were kept clipped to th..., ## Guinea fowl turning biomechanics on high and low friction terrain Data and code associated with the paper: **\"Faster fowl fall frequently: Speed and force regulation during turning maneuvers by guinea fowl on high and low friction terrains\"** Authors: Hannah Goldsmith, Jade Hall and Monica A Daley\ J Exp Biol (2026) 229 (6): jeb250929. [https://doi.org/10.1242/jeb.250929](https://doi.org/10.1242/jeb.250929) \***Author for correspondence:** [madaley@uci.edu](mailto:madaley@uci.edu) ## Overview This repository contains MATLAB code and data files for analyzing the biomechanics of turning in guinea fowl (*Numida meleagris*) across high and low friction terrain conditions. The analysis investigates how birds modulate ground reaction forces, limb posture, and body center of mass dynamics during straight runs and turns on high-friction (control) and low-friction (slippery) surfaces. ## Directory Structure ``` DataDryad/ âââ README_public.md # This file ââ..., ,
本存储库包含用于分析高低摩擦地形条件下珠鸡（Numida meleagris）转向运动生物力学的MATLAB代码与数据文件。本分析旨在探究珠鸡在高摩擦（对照）与低摩擦（湿滑）表面进行直线奔跑与转向动作时，如何调节地面反作用力（ground reaction forces）、肢体姿态以及身体质心（CoM）动力学特性。本数据集包含珠鸡在高低摩擦表面沿直线跑道与90度转向跑道运动时采集的地面反作用力、压力中心（center of pressure）以及身体质心（CoM）运动轨迹数据。本数据集与代码关联的论文为：《更快的珠鸡更易摔倒：高低摩擦地形下珠鸡转向动作中的速度与力调控》（Faster fowl fall frequently: speed and force regulation during turning maneuvers by guinea fowl on high and low friction terrains），实验方法的全部细节已在该论文中详细阐释。 ## 材料与方法 [本部分方法来自关联论文手稿，因此文中提及的表格、图表与补充材料均指向该手稿。不过本数据集与代码可完整复现论文中描述的统计分析流程，详见README文件。] ### 实验动物与训练 本研究共使用7只盔头珠鸡（Numida meleagris，4雄3雌），均由皇家兽医学院（RVC）孵化饲养。样本量基于此前关于鸵鸟转向与珠鸡在湿滑地形运动的研究效应量估算（Jindrich等人，2007；Clark与Higham，2011）。最初共训练了8只珠鸡，但其中1只因拒绝通过湿滑地形导致数据集不完整，被排除在分析之外。实验测试时，受试珠鸡均为4岁龄，体质量为1.89 ± 0.21 kg，站立时髋部高度为17.53 ± 2.38 cm（均值±标准差）。初级飞羽被定期修剪以…… ## 高低摩擦地形下珠鸡转向运动的生物力学 本数据集与代码关联的论文为：**《更快的珠鸡更易摔倒：高低摩擦地形下珠鸡转向动作中的速度与力调控》**，作者：Hannah Goldsmith、Jade Hall与Monica A Daley 发表于《实验生物学杂志》（*Journal of Experimental Biology*, J Exp Biol）2026年第229卷第6期，文章编号jeb250929。[https://doi.org/10.1242/jeb.250929] **通讯作者：** [madaley@uci.edu](mailto:madaley@uci.edu) ## 概述 本存储库包含用于分析高低摩擦地形条件下珠鸡（Numida meleagris）转向运动生物力学的MATLAB代码与数据文件。本分析旨在探究珠鸡在高摩擦（对照）与低摩擦（湿滑）表面进行直线奔跑与转向动作时，如何调节地面反作用力、肢体姿态以及身体质心动力学特性。 ## 目录结构 DataDryad/ ├─── README_public.md # 本说明文件 ├───..., ,
