Descending 13 real world steps: A dataset and analysis of stair descent.
Descending 13 real world steps: A dataset and analysis of stair descent.
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下降 13 个现实世界台阶：楼梯下降的数据集和分析。
DOI：
10.1016/j.gaitpost.2021.10.039
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发表时间：
2021
期刊：
影响因子：
2.4
通讯作者：
E. Rombokas
中科院分区：
文献类型：
--
作者：
Astrini Sie;Maxim Karrenbach;Charlie Fisher;S. Fisher;Nathaniel Wieck;Callysta Caraballo;Elisabeth Case;David Boe;B. Muir;E. Rombokas
背景：楼梯下降分析通常仅限于4或5级的实验室楼梯。到目前为止，还没有关于实验室外无限制楼梯下降时步态参数的报告，也没有公开可用的运动捕获数据集。研究问题：我们的目标是收集一个数据集，并在实验室外进行楼梯下降的步态分析。我们的目标是测量基本的运动学和运动学步态参数以及脚的放置行为。方法：我们提供了一个公共的楼梯下降数据集，来自101名年龄在18-35岁的未受损的参与者，他们使用可穿戴传感器收集的无约束的13级楼梯。数据集包括运动学(全身关节角度和位置)、运动学(足底法向力、加速度)和30,609步的脚部放置。结果：报告了小腿关节角度范围(髋关节屈伸30°和8°，膝关节屈曲85°和−11°，踝关节背屈31°和足底28°)。自选速度为0.79±0.16m/S，自选周期为0.97±0.18 S，平均足外伸占足长的百分比为17.07±6.66%，脚大小仅能解释6%的脚跟摆放变异，而79%的脚趾摆放变异可以解释。我们还发现，尽管所有其他测量参数都是对称的，但左侧和右侧最大髋关节屈曲角度之间存在轻微但显著的不对称。意义：这是第一次对大量(n=101)参与者的步态数据进行定量观察，这些参与者在实验室外走下一段不受限制的楼梯。这项研究能够分析步态特征，包括自我选择的行走速度和脚的位置，以更好地了解典型的楼梯步态行为。该数据集是了解典型楼梯下降的公共资源。
Background: Stair descent analysis has been typically limited to laboratory staircases of 4 or 5 steps. To date there has been no report of gait parameters during unconstrained stair descent outside of the laboratory, and few motion capture datasets are publicly available. Research question: We aim to collect a dataset and perform gait analysis for stair descent outside of the laboratory. We aim to measure basic kinematic and kinetic gait parameters and foot placement behavior. Methods: We present a public stair descent dataset from 101 unimpaired participants aged 18–35 on an unconstrained 13-step staircase collected using wearable sensors. The dataset consists of kinematics (full-body joint angle and position), kinetics (plantar normal forces, acceleration), and foot placement for 30,609 steps. Results: We report the lower limb joint angle ranges (30° and 8° for hip flexion and extension, 85° and− 11° for knee flexion and extension, and 31° and 28° for ankle dorsi-and plantar-flexion). The self-selected speed was 0.79±0.16 m/s, with cycle duration of 0.97±0.18 s. Mean foot overhang as a percentage of foot length was 17.07±6.66%, and we calculate that foot size explains only 6% of heel placement variation, but 79% of toe placement variation. We also find a minor but significant asymmetry between left and right maximum hip flexion angle, though all other measured parameters were symmetrical. Significance: This is the first quantitative observation of gait data from a large number (n= 101) of participants descending an unconstrained staircase outside of a laboratory. This study enables analysis of gait characteristics including self-selected walking speed and foot placement to better understand typical stair gait behavior. The dataset is a public resource for understanding typical stair descent.
影响因子：
2.4
作者：
Besier, Thor F.;Fredericson, Michael;Gold, Garry E.;Beaupre, Gary S.;Delp, Scott L.
通讯作者：
Delp, Scott L.