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Lo, Hsin Chang; Tsai, Kun-Hung; Su, Fong Chin; Yeh, Chun Yu

doi:10.5405/jmbe.857

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…Other research has focused on Functional Electrical Stimulation (FES) to stimulate specific lower limb muscles for recumbent cycling motion [22,23,24]. Lo et al proposed an FES-based cycling wheelchair for stroke patients engaged in the recovery stage [25]. Clinical evaluation results showed that the proposed wheelchair was easier to use and more efficient than a manual wheelchair.…”

Section: Introductionmentioning

confidence: 99%

Design and Feasibility Study of a Leg-exoskeleton Assistive Wheelchair Robot with Tests on Gluteus Medius Muscles

Huang

Ceccarelli

Mai

2019

Sensors

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The muscles of the lower limbs directly influence leg motion, therefore, lower limb muscle exercise is important for persons living with lower limb disabilities. This paper presents a medical assistive robot with leg exoskeletons for locomotion and leg muscle exercises. It also presents a novel pedal-cycling actuation method with a crank-rocker mechanism. The mechanism is driven by a single motor with a mechanical structure that ensures user safety. A control system is designed based on a master-slave control with sensor fusion method. Here, the intended motion of the user is detected by pedal-based force sensors and is then used in combination with joystick movements as control signals for leg-exoskeleton and wheelchair motions. Experimental data is presented and then analyzed to determine robotic motion characteristics as well as the assistance efficiency with attached electromyogram (EMG) sensors. A typical muscle EMG signal analysis shows that the exercise efficiency for EMG activated amplitudes of the gluteus medius muscles approximates a walking at speed of 3 m/s when cycling at different speeds (i.e., from 16 to 80 r/min) in a wheelchair. As such, the present wheelchair robot is a good candidate for enabling effective gluteus medius muscle exercises for persons living with gluteus medius muscle disabilities.

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Section: Introductionmentioning

confidence: 99%

Design and Feasibility Study of a Leg-exoskeleton Assistive Wheelchair Robot with Tests on Gluteus Medius Muscles

Huang

Ceccarelli

Mai

2019

Sensors

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“…Compared with MWs, EPWs have several important advantages, including a reduced user effort and a lower risk of strain-induced injuries [1,[15][16][17][18][19][20][21][22]. Consequently, EPWs have gained in popularity and importance in recent years and have prompted an increasing number of users to switch from manual propulsion to motor-powered propulsion [13].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, most EPWs are inconvenient to maintain because of their many mechanical and electrical components. In addition, they cannot be easily folded or disassembled and are therefore cumbersome to store and transport [13,[15][16][17][18][19][20][21][22]. Consequently, their market share is not yet as much as that of traditional MWs.…”

Section: Introductionmentioning

confidence: 99%

Design and development of solar power-assisted manual/electric wheelchair

et al. 2014

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Abstract-Wheelchairs are an essential assistive device for many individuals with injury or disability. Manual wheelchairs provide a relatively low-cost solution to the mobility needs of such individuals. Furthermore, they provide an effective means of improving the user's cardiopulmonary function and upperlimb muscle strength. However, manual wheelchairs have a gross loss of mechanical efficiency, and thus the risk of user fatigue and upper-limb injury is increased. Electric-powered wheelchairs reduce the risk of injury and provide a more convenient means of transportation. However, they have a large physical size and are relatively expensive. Accordingly, the present study utilizes a quality function deployment method to develop a wheelchair with a user-selectable manual/electric propulsion mode and an auxiliary solar power supply system. The auxiliary solar power supply increased the travel range of the wheelchair by approximately 26% compared with that of a wheelchair powered by battery alone. Moreover, the wheelchair has a modular design and can be disassembled and folded for ease of transportation or storage. Overall, the present results suggest that the proposed wheelchair provides an effective and convenient means of meeting the mobility needs of individuals with mobility difficulties.

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