Locomotion Solution for Stair Climbing Wheelchair with ER Fluid Based Control

Author(s):  
Viorel Stoian ◽  
Ionel Cristian Vladu ◽  
Ileana Vladu ◽  
Cristina Pana ◽  
Daniela Patrascu
Keyword(s):  
2012 ◽  
Author(s):  
Keith S. Jones ◽  
Elizabeth A. Schmidlin ◽  
Noah J. Wheeler
Keyword(s):  

2018 ◽  
Vol 33 (8) ◽  
pp. 1195-1201
Author(s):  
Dorothée Altmeier ◽  
Otmar Bock ◽  
Daniel Memmert

ROBOT ◽  
2010 ◽  
Vol 32 (2) ◽  
pp. 226-232 ◽  
Author(s):  
Bo HUANG ◽  
Jianwen ZHAO ◽  
Lining SUN

2018 ◽  
Vol 143 ◽  
pp. 671-677 ◽  
Author(s):  
Anurag Narayan Sarmah ◽  
Abhijit Boruah ◽  
Daisy Kalita ◽  
Darshana Neog ◽  
Saumay Paul

Author(s):  
Daniel Stark ◽  
Stefania Di Gangi ◽  
Caio Victor Sousa ◽  
Pantelis Nikolaidis ◽  
Beat Knechtle

Though there are exhaustive data about participation, performance trends, and sex differences in performance in different running disciplines and races, no study has analyzed these trends in stair climbing and tower running. The aim of the present study was therefore to investigate these trends in tower running. The data, consisting of 28,203 observations from 24,007 climbers between 2014 and 2019, were analyzed. The effects of sex and age, together with the tower characteristics (i.e., stairs and floors), were examined through a multivariable statistical model with random effects on intercept, at climber’s level, accounting for repeated measurements. Men were faster than women in each age group (p < 0.001 for ages ≤69 years, p = 0.003 for ages > 69 years), and the difference in performance stayed around 0.20 km/h, with a minimum of 0.17 at the oldest age. However, women were able to outperform men in specific situations: (i) in smaller buildings (<600 stairs), for ages between 30 and 59 years and >69 years; (ii) in higher buildings (>2200 stairs), for age groups <20 years and 60–69 years; and (iii) in buildings with 1600–2200 stairs, for ages >69 years. In summary, men were faster than women in this specific running discipline; however, women were able to outperform men in very specific situations (i.e., specific age groups and specific numbers of stairs).


2020 ◽  
Vol 23 ◽  
pp. S644
Author(s):  
M. Tengström ◽  
B. Byrom ◽  
S. Volotinen ◽  
U. Huopaniemi ◽  
T. Laurila

Machines ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 10
Author(s):  
Luca Bruzzone ◽  
Mario Baggetta ◽  
Shahab E. Nodehi ◽  
Pietro Bilancia ◽  
Pietro Fanghella

This paper presents the conceptual and functional design of a novel hybrid leg-wheel-track ground mobile robot for surveillance and inspection, named WheTLHLoc (Wheel-Track-Leg Hybrid Locomotion). The aim of the work is the development of a general-purpose platform capable of combining tracked locomotion on irregular and yielding terrains, wheeled locomotion with high energy efficiency on flat and compact grounds, and stair climbing/descent ability. The architecture of the hybrid locomotion system is firstly outlined, then the validation of its stair climbing maneuver capabilities by means of multibody simulation is presented. The embodiment design and the internal mechanical layout are then discussed.


Author(s):  
Zubair Ahmad Bhat ◽  
Junaid Ashraf ◽  
Saurav Gupta ◽  
Deepak Rai ◽  
Ande Gnanadeep ◽  
...  
Keyword(s):  

2021 ◽  
Vol 11 (7) ◽  
pp. 2987
Author(s):  
Takumi Okumura ◽  
Yuichi Kurita

Image therapy, which creates illusions with a mirror and a head mount display, assists movement relearning in stroke patients. Mirror therapy presents the movement of the unaffected limb in a mirror, creating the illusion of movement of the affected limb. As the visual information of images cannot create a fully immersive experience, we propose a cross-modal strategy that supplements the image with sensual information. By interacting with the stimuli received from multiple sensory organs, the brain complements missing senses, and the patient experiences a different sense of motion. Our system generates the sense of stair-climbing in a subject walking on a level floor. The force sensation is presented by a pneumatic gel muscle (PGM). Based on motion analysis in a human lower-limb model and the characteristics of the force exerted by the PGM, we set the appropriate air pressure of the PGM. The effectiveness of the proposed system was evaluated by surface electromyography and a questionnaire. The experimental results showed that by synchronizing the force sensation with visual information, we could match the motor and perceived sensations at the muscle-activity level, enhancing the sense of stair-climbing. The experimental results showed that the visual condition significantly improved the illusion intensity during stair-climbing.


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