Topic
Stair climbing
About: Stair climbing is a research topic. Over the lifetime, 1610 publications have been published within this topic receiving 30504 citations.
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TL;DR: Using microcatheter blood pressure telemetry, the pressure-lowering effect of prindolol (Visken), a beta-blocking drug, was tested at a dose of 10 mg three time daily by mouth in eight patients with essential hypertension and low to normal plasma-renin activities.
Abstract: Using microcatheter blood pressure telemetry, the pressure-lowering effect of prindolol (Visken), a beta-blocking drug, was tested at a dose of 10 mg three time daily by mouth in eight patients with essential hypertension (WHO stage II) and low to normal plasma-renin activities. After about ten days of treatment, the hypertensive reaction to everyday physical exercise (walking, climbing stairs, bicycle ergometry) was especially favourably affected. The average blood-pressure reduction at rest was 18.6/12.1 (systolic/diastolic), on stair climbing 41.5/17.2 mm Hg.
7 citations
01 Nov 2016
TL;DR: It is shown that the robot's path or gait shape can be modified by the set of overall gait parameters that can be changed at any time instance, and the robot can approach stairs with a variable number of half-steps, switch smoothly to stair climbing, and back to walking on flat surface as humans can do.
Abstract: Humans can reliably walk in dynamic and unstructured environments, simultaneously handle stairs and obstacles, as well as the transition from one gait to another. Despite the outstanding progress in the last decades, today's robots are still far from attaining that level of performance. This paper presents a new way of walk and stair climbing realization with a smooth transition between two types of gait. The gaits are composed of Reconfigurable Adaptive Motion Primitives (RAMPs), which serves as building blocks for any walking pattern. A human locomotion experiment is conducted to better understand how human approaches and positions the foot in front of the stairs with respect to the overall walk characteristics. These findings are used to compare the results of a simulation experiment with humanoid robot performing same locomotion as the human subject. It is shown that the robot's path or gait shape can be modified by the set of overall gait parameters that can be changed at any time instance. The robot can approach stairs with a variable number of half-steps, switch smoothly to stair climbing, and back to walking on flat surface, and modify walking speed and direction on-line as humans can do.
7 citations
25 May 2009
TL;DR: The simulation results show that it is possible to climb up/down a staircase but some safety counter measures are required and the idea of counter measures is also presented in this paper.
Abstract: A simulation-based approach provides a hint to study a solution to various problems. To show the feasibility of this approach, this paper focuses on a self-propelled stair climbing wheelchair. This wheelchair was designed to climb up/down a regular and common staircase without any special facilities. Using a solid model for this stair climbing wheelchair, simulation-based analysis was conducted to validate the stair climbing feasibility to fulfill the process-oriented approach, which pursues to enjoy the process as well as to comfortably achieve the goal. The simulation results in this study show that it is possible to climb up/down a staircase but some safety counter measures are required. The idea of counter measures is also presented in this paper. Some conclusions and future directions are made on the feasibility of this project.
7 citations
TL;DR: In this article, the concept and parameter design of a robust stair-climbing compliant modular robot, capable of tackling stairs with overhangs, is discussed, along with establishing a concept design, the robust design parameters are set to minimize performance variations.
Abstract: This paper discusses the concept and parameter design of a robust stair-climbing compliant modular robot, capable of tackling stairs with overhangs. Geometry modifications of the periphery of the wheels of our robot helped in tackling overhangs. Along with establishing a concept design, the robust design parameters are set to minimize performance variations. The Grey-based Taguchi method is applied to provide an optimal setting for the design parameters of the robot. The robot prototype is shown to have successfully scaled stairs of varying dimensions, with overhang, thus corroborating the analysis performed.
7 citations
01 Jan 2009
TL;DR: The training program, which is effective in improving gait velocity and stair climbing ability, was also effective in reducing turn execution times regardless of turning direction.
Abstract: Objective: To investigate the performance of hemiplegic patients in 180° turns before and after a training program which is effective in improving other functional tasks, considering the effect of the turning direction. Methods: Thirty chronic hemiplegics (17 men and 13 women; 56.36±10.86 years) participated in a training program (aerobic activities and muscular strengthening) and were evaluated before and after the intervention by means of the Step/Quick Turn (SQT; Balance Master ® ), which involves a 180° turn during gait. Gait velocity and stair climbing ability were also evaluated. Mixed repeated-measures ANOVA (2x2) was used to compare the turning direction (paretic and non-paretic) and the pre- and post-intervention evaluations. Paired t tests were used to investigate the impact of the training program on gait velocity and stair climbing ability (α=0.05). Results: No significant differences were found in any of the SQT variables when considering the turning direction (0.23
7 citations