نتایج جستجو برای: gait planning
تعداد نتایج: 226215 فیلتر نتایج به سال:
objectives: the purpose of this study was to compare spatio-temporal gait parameters between elderly and young male subjects. methods & materials: 57 able-bodied elderly (72±5.5 years) and 57 healthy young (25±8.5 years) subjects participated in this study. a four segment model consist of trunk, hip, shank, and foot with 10 reflective markers were used to define lower limbs. kinematic data coll...
Background and purpose: High cost and complication of some instruments assessing functional capabilities in athletes with anterior cruciate ligament (ACL) deficiency have caused increasing attentions towards using inexpensive and user-friendly instruments as accelerometers and gait analyzing based on signal processing. Therefore, gait phases detection seems to be necessary while accelerometer i...
Objectives: This study aimed to compare elderly fallers and non fallers by balance test under dual tasks conditions. Methods & Materials: This study was a analyse-comparative study. Subjects were chosen from three parks of Tehran. Subjects were 20 older adults with no history of falls (aged 72.60±5 years) and 21 older adults with a history of 2 or more falls in the last one year (aged 74.50±...
BACKGROUND Functional independence with aging is an important goal for individuals and society. Simple prognostic indicators can inform health promotion and care planning, but evidence is limited by heterogeneity in measures of function. METHODS We performed a pooled analysis of data from seven studies of 27,220 community-dwelling older adults aged 65 or older with baseline gait speed, follow...
In this paper we describe the mechanical construction and AI-based planning techniques for the locomotion and reconfiguration of a modular self-reconfigurable robot(MSR) called ModRED (Modular Robot for Exploration and Discovery). ModRED is a highly dexterous, chain-type MSR with 4 degrees of freedom. It can maneuver in tight spaces and is suitable for autonomous locomotion over unstructured an...
Purpose – The purpose of this paper is to introduce the robotic quadrupedal platform ALoF that is designed to aid research on perception in legged locomotion. Design/methodology/approach – A well-balanced size and complexity of the robot results in a robust platform that is easy to handle, yet able to perform complex maneuvers as well as to carry sophisticated 3D sensors. A very large range of ...
This paper proposes a gait planning approach to reduce the required friction for a biped robot walking on various surfaces. To this end, a humanoid robot with 18 DOF is considered to develop a dynamics model for studying various 3D manoeuvres. Then, feasible trajectories are developed to alleviate the fluctuations on the upper body to resemble human-like walking. In order to generate feasible w...
as a robot could be stable statically standing on three or more legs, a six legged walking robot can be highly flexible in movements and perform different missions without dealing with serious kinematic and dynamic problems. an experimental six legged walking robot with 18 degrees of freedom is studied and built in this paper. the kinematic and gait analysis formulations are demonstrated by an e...
background: in this study we investigated the differences of functional gait and balance measures between patients with chronic stroke with different level of concern about falling. methods: fifty-four patients with chronic stroke participated in this observational, cross-sectional study. the level of concern relating to falls was assessed by using the falls efficacy scale-international. thirty...
It has been shown that during the planning of a voluntary movement the transmission of cutaneous afferent inputs to the somatosensory cortex is attenuated shortly before the motor output as well as during movement execution. However, it is not known whether the sensory suppression observed during the planning phase (i.e., before any movement execution) is a systemic phenomenon or whether it is ...
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