The Design of a New Manual Wheelchair for Sport

Quaglia, Giuseppe; Bonisoli, Elvio; Cavallone, Paride

doi:10.3390/machines7020031

Cited by 17 publications

(9 citation statements)

References 21 publications

(32 reference statements)

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“…In Section 4, some simulation results related to kinematic and dynamic performances of the system are reported. This architecture is highly inspired by the innovative wheelchair propulsion system proposed in [25,26] because it allows its user greater mobility while pulling the cables.…”

Section: Leg Exercises Control Systemmentioning

confidence: 99%

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Rehabilitation Machine for Bariatric Individuals

et al. 2020

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Obesity is known to be growing worldwide. The World Health Organization (WHO) reports that obesity has tripled since 1975. In 2016, 39% of adults over 18 years old were overweight, and 13% were obese. Obesity is mostly preventable by adopting lifestyle improvements, enhancing diet quality, and doing physical exercise. The workload of the physical exercises should be proportionate to the patient’s capabilities. However, it must be considered that obese people are not used to training; they may not endure physical exertion and, even more critically, they could have some psychological impediments to the workouts. Physical exercises and equipment must, therefore, guarantee comfort and prevent situations in which the bariatric individual may feel inadequate. For these reasons, this study aims to design an innovative system to approach simple physical activities, like leg and arm exercises, to bariatric users to enable them to recover mobility and muscle tone gradually. The leading feature of this architecture is the design of hidden exercise mechanisms to overcome the psychological barriers of the users toward these kinds of machines. This paper proposes the initial design of the main sub-systems composing the rehabilitation machine, namely the leg curl and leg extension mechanism and its control architecture, the upper body exercises system, and a series of regulation mechanisms required to accommodate a wide range of users. The proposed functional design will then lead to the development of a prototype to validate the machine.

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Section: Leg Exercises Control Systemmentioning

confidence: 99%

“…This architecture is highly inspired by the innovative wheelchair propulsion system proposed in [25,26] because it allows its user greater mobility while pulling the cables. Like for the leg exercises mechanism, the user sets a desired opposing force to their exercises.…”

Section: Upper Body Exercises Mechanismmentioning

confidence: 99%

Rehabilitation Machine for Bariatric Individuals

et al. 2020

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“…One of the oldest and most commonly used means of supporting the mobility of disabled people are wheelchairs. Wheelchair's structures are dynamically developed in many directions, e.g., in order to increase the range of overcoming terrain obstacles (thresholds [5], stairs [6][7][8], elevations [9], ditches characterized by large differences in height [10]), both weight and dimensions reduction [11], frame reinforcements [12], technologies supporting propulsion [13], systems enabling the transmission of driving force from hands to wheels of a wheelchair with various degrees of dysfunction [14], structural improvements increasing the safety of movement [15,16], systems facilitating manual driving of the wheelchair, e.g., gears [8,17]. The group that has been most developed in recent years consists of electric wheelchairs with the possibility of supporting the manual propulsion [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

An Analytical Modelling of Demand for Driving Torque of a Wheelchair with Electromechanical Drive

et al. 2021

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This study aimed at analysing the influence of the position of the centre of gravity variability and the movement velocity on the demand for a torque and work time coverage of a wheelchair with an electromechanical drive. The variable parameter in the study was the configuration of the wheelchair, namely changes in the position of the batteries which changed the weight distribution. An analytical model describing the demand for torque was used in the analysis. The set of equations was introduced into the numerical calculation software. Simulations were carried out which allowed it to analyse selected parameters of the wheelchair dynamics. An increase in the torque demand was observed due to the increase in the mass of the system from 427.7 N to 533.1 N, ranging from 6.1% to 31.6% at the simulated velocity v7 = 4.2 m/s. The increase in the demand for torque due to the increase in velocity of the wheelchair from v2 = 1.05 m/s to v7 = 4.2 m/s ranged from 25.9% to 31.6% compared to the reference velocity v1 = 0.525 m/s. The centre of gravity of the wheelchair structure localization has a non-linear impact on the analysed values. At the same time, it was not possible to define its nature—this issue remains open and requires further research.

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“…In recent years Research Institutes around the world have been looking to increase the quality of life of spinal cord injury (SCI) people by the development of different devices like assistive robots, the design of a mechanism for therapies and devices to transport patients between different zones of the hospital or house [1][2][3][4][5][6][7][8]. There are several examples of devices [9][10][11][12][13][14][15][16][17]. Alkhateeb shows one of them, where the seat's effect to back support angle adjustments on head, neck, and shoulder postural alignment in people with cerebral palsy [18].…”

Section: Introductionmentioning

confidence: 99%

Design of an Automated Multiposition Dynamic Wheelchair

Aguilar-Peréz

Paredes-Rojas

Sanchez-Cruz

et al. 2021

Sensors

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This work presents a design for an automatized multiposition dynamic wheelchair used to transport quadriplegic patients by reconfiguring a manual wheelchair structure. An electric actuator is attached to a four-bar mechanism fixed to each side of a wheelchair’s backrest to reach multiposition. The entire device is actuated through a PID controller. An experimental test is carried out in a simplified wheelchair structure. Finally, the structure of the wheelchair is evaluated through the Dynamic analysis and Finite Element Method under the payload computed with the most critical position reached by the mechanism.

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The Design of a New Manual Wheelchair for Sport

Cited by 17 publications

References 21 publications

Rehabilitation Machine for Bariatric Individuals

Rehabilitation Machine for Bariatric Individuals

An Analytical Modelling of Demand for Driving Torque of a Wheelchair with Electromechanical Drive

Design of an Automated Multiposition Dynamic Wheelchair

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