Ming-Lun Lee

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OBJECTIVE To use kinetic assessment of the sit-to-stand movement as a means of sorting out those stroke patients at risk for falling. DESIGN A retrospective study, using a force platform to assess sit-to-stand performance and to determine its correlation with falls in stroke patients. SETTING Hospital-based rehabilitation units. METHODS Thirty-three(More)
A new design of cervical traction modality with closed loop traction weight control based on electromyographic (EMG) biofeedback was developed. It consists of the development of a high signal-to-noise ratio EMG scanner, on-line self-adjusted traction weight controller, computer interface hardware, and closed loop biofeedback control software. Six healthy,(More)
This study was undertaken to explore whether we could provide supportive laboratory evidence for the clinical observations that a stroke patient has lost functional mobility/locomotion capability based on dynamic balance responses (center of force sway patterns) and motor control activities (electromyography patterns) during the motor task of sit-to-stand.(More)
For patients with neurological damage of the central nervous system, such as that due to cerebrovascular accident (CVA), standing balance training is a critical therapeutic procedure to be undertaken before walking and self-care training. The identification and characterization of neurological disorder in postural steadiness will enhance our understanding(More)
A new standing biofeedback training device, which includes a height-adjustable work table, weight-bearing sensors, and a real-time visual and auditory feedback system, has been developed for postural training. Sixty persons with hemiplegia after acute stroke or traumatic brain injury were randomly divided into Group A (experimental) and Group B (control).(More)
The graphical password authentication scheme uses icons instead of text-based passwords to authenticate users. Icons might be somehow more familiar to human beings than text-based passwords, since it is hard to remember the latter with sufficient security strength. No matter what kind of password is used, there are always shoulder-surfing problems. An(More)
An intermittent cervical traction modality with closed-loop traction force control based on EMG biofeedback was developed and used for clinical study. This system consists of a EMG scanner, on-line self-adjusted traction force controller, audio/video alarm system, real time therapeutic status display, computer interface hardware, and control software.(More)
The purpose of this study was to explore whether we could provide supportive laboratory evidence for clinical observations that a stroke patient has lost functional mobility/locomotion capability based on dynamic balance responses (centre of pressure, COP sway patterns) and motor control activities (EMG patterns) during the motor task of sit-to-stand. A(More)
This paper demonstrates that quantum-confined Stark effect (QCSE) within the multiple quantum wells (MQWs) can be suppressed by the growths of InGaN-based light-emitting diodes (LEDs) on the nano-sized patterned c-plane sapphire substrates (PCSSs) with reducing the space. The efficiency droop is also determined by QCSE. As verified by the experimentally(More)