Entity

Time filter

Source Type


Tang P.,Southern Medical University | Tang P.,Guangzhou Medical College | Chen H.,Guangdong Provincial Work Injury Rehabilitation Hospital | Uhlman M.,University of Iowa | And 5 more authors.
Asian Journal of Andrology | Year: 2013

Nomograms for predicting the risk of prostate cancer developed using other populations may introduce sizable bias when applied to a Chinese cohort. In the present study, we sought to develop a nomogram for predicting the probability of a positive initial prostate biopsy in a Chinese population. A total of 535 Chinese men who underwent a prostatic biopsy for the detection of prostate cancer in the past decade with complete biopsy data were included. Stepwise logistic regression was used to determine the independent predictors of a positive initial biopsy. Age, prostate-specific antigen (PSA), prostate volume (PV), digital rectal examination (DRE) status, % free PSA and transrectal ultrasound (TRUS) findings were included in the analysis. A nomogram model was developed that was based on these independent predictors to calculate the probability of a positive initial prostate biopsy. A receiver-operating characteristic curve was used to assess the accuracy of using the nomogram and PSA levels alone for predicting positive prostate biopsy. The rate for positive initial prostate biopsy was 41.7% (223/535). The independent variables used to predict a positive initial prostate biopsy were age, PSA, PV and DRE status. The areas under the receiver-operating characteristic curve for a positive initial prostate biopsy for PSA alone and the nomogram were 79.7% and 84.8%, respectively. Our results indicate that the risk of a positive initial prostate biopsy can be predicted to a satisfactory level in a Chinese population using our nomogram. The nomogram can be used to identify and counsel patients who should consider a prostate biopsy, ultimately enhancing accuracy in diagnosing prostate cancer. © 2013 AJA, SIMM & SJTU. Source


Liao L.-R.,Guangdong Provincial Work Injury Rehabilitation Hospital | Liao L.-R.,Hong Kong Polytechnic University | Ng G.Y.F.,Hong Kong Polytechnic University | Jones A.Y.M.,Griffith University | Pang M.Y.C.,Hong Kong Polytechnic University
Physical Therapy | Year: 2015

Background. Although whole-body vibration (WBV) has sparked tremendous research interest in neurorehabilitation, the cardiovascular responses to WBV in people with stroke remain unknown. Objective. The aim of this study was to determine the acute effects of different WBV protocols on oxygen consumption (formula presented), heart rate (HR), rate of perceived exertion (RPE), blood pressure (BP), and rate-pressure product (RPP) during the performance of 6 different exercises among people with chronic stroke (time since onset ≥ 6 months). Design. A repeated-measures design was used. Methods. Each of the 48 participants experienced all 3 WBV protocols in separate sessions: (1) no WBV, (2) low-intensity WBV (peak acceleration = 0.96 unit of gravity of Earth [g]), and (3) high-intensity WBV (1.61g). The order in which they encountered the WBV protocols was randomized, as was the order of exercises performed during each session. Oxygen consumption, HR, and RPE were measured throughout the study. Blood pressure and RPP were measured before and after each session. Results. Low-intensity and high-intensity WBV induced significantly higher (formula presented) by an average of 0.69 and 0.79 mL/kg/min, respectively, compared with the control condition. These protocols also increased HR by an average of 4 bpm. The 2 WBV protocols induced higher RPE than the control condition during static standing exercise only. Although the diastolic and systolic BP and RPP were increased at the end of each exercise session, the addition of WBV had no significant effect on these variables. Limitations. The results are generalizable only to ambulatory and communitydwelling people with chronic stroke. Conclusions. Addition of high- and low-intensity WBV significantly increased the (formula presented) and HR, but the increase was modest. Thus, WBV should not pose any substantial cardiovascular hazard in people with chronic stroke. © 2014, American Physical Therapy Association. Source


Liao L.-R.,Guangdong Provincial Work Injury Rehabilitation Hospital | Ng G.Y.F.,Hong Kong Polytechnic University | Jones A.Y.M.,Griffith University | Huang M.-Z.,Hong Kong Polytechnic University | Pang M.Y.C.,Hong Kong Polytechnic University
Medicine and Science in Sports and Exercise | Year: 2016

Purpose A single-blinded randomized controlled study was conducted to investigate the effects of different whole-body vibration (WBV) intensities on body functions/structures, activity, and participation in individuals with stroke. Methods Eighty-four individuals with chronic stroke (mean age = 61.2 yr, SD = 9.2) with mild to moderate motor impairment (Chedoke-McMaster Stroke Assessment lower limb motor score: median = 9 out of 14, interquartile range = 7-11.8) were randomly assigned to a low-intensity WBV, high-intensity WBV, or control group. The former two groups performed various leg exercises while receiving low-intensity and high-intensity WBV, respectively. Controls performed the same exercises without WBV. All individuals received 30 training sessions over an average period of 75.5 d (SD = 5.2). Outcome measurements included knee muscle strength (isokinetic dynamometry), knee and ankle joint spasticity (Modified Ashworth Scale), balance (Mini Balance Evaluation Systems Test), mobility (Timed-Up-And-Go test), walking endurance (6-Minute Walk Test), balance self-efficacy (Activities-specific Balance Confidence scale), participation in daily activities (Frenchay Activity Index), perceived environmental barriers to societal participation (Craig Hospital Inventory of Environmental Factors), and quality of life (Short-Form 12 Health Survey). Assessments were performed at baseline and postintervention. Results Intention-To-Treat analysis revealed a significant time effect for muscle strength, Timed-Up-And-Go distance, and oxygen consumption rate achieved during the 6-Minute Walk Test, the Mini Balance Evaluation Systems Test, the Activities-specific Balance Confidence scale, and the Short-Form 12 Health Survey physical composite score domain (P < 0.05). However, the time-group interaction was not significant for any of the outcome measures (P > 0.05). Conclusion The addition of the 30-session WBV paradigm to the leg exercise protocol was no more effective in enhancing body functions/structures, activity, and participation than leg exercises alone in chronic stroke patients with mild to moderate motor impairments. Copyright © 2016 by the American College of Sports Medicine. Unauthorized reproduction of this article is prohibited. Source


Liao L.-R.,Guangdong Provincial Work Injury Rehabilitation Hospital | Liao L.-R.,Hong Kong Polytechnic University | Ng G.Y.F.,Hong Kong Polytechnic University | Jones A.Y.M.,Griffith University | And 2 more authors.
Physical Therapy | Year: 2015

Background. Whole-body vibration (WBV) has increasingly been used as an adjunct treatment in neurological rehabilitation. However, how muscle activation level changes during exposure to different WBV protocols in individuals after stroke remains understudied. Objective. The purpose of this study was to examine the influence of WBV intensity on the magnitude of biceps femoris (BF) and tibialis anterior (TA) muscle activity and its interaction with exercise and with severity of motor impairment and spasticity among individuals with chronic stroke. Methods. Each of the 36 individuals with chronic stroke (mean age 57.3 years, SD 10.7) performed 8 different static exercises under 3 WBV conditions: (1) no WBV, (2) low-intensity WBV (frequency 20 Hz, amplitude 0.60 mm, peak acceleration 0.96g), and (3) high- intensity WBV (30 Hz, 0.44 mm, 1.61g). The levels of bilateral TA and BF muscle activity were recorded using surface electromyography (EMG). Results. The main effect of intensity was significant. Exposure to the low-intensity and high-intensity protocols led to a significantly greater increase in normalized BF and TA muscle electromyographic magnitude in both legs compared with no WBV. The intensity exercise interaction also was significant, suggesting that the WBV-induced increase in EMG activity was exercise dependent. The EMG responses to WBV were similar between the paretic and nonparetic legs and were not associated with level of lower extremity motor impairment and spasticity. Limitations. Leg muscle activity was measured during static exercises only. Conclusions. Adding WBV during exercise significantly increased EMG activity in the TA and BF muscles. The EMG responses to WBV in the paretic and nonparetic legs were similar and were not related to degree of motor impairment and spasticity. The findings are useful for guiding the design of WBV training protocols for people with stroke. © 2015 American Physical Therapy Association. Source


Liu X.,Guangdong Provincial Work Injury Rehabilitation Hospital
Chinese Journal of Rehabilitation Medicine | Year: 2014

Conclusion: Most of the patients with spinal cord injury need the service of assistive technology. And the assistive device can improve the abilities of activities of daily living(ADL) of the patients with spinal cord injury. The current assistive device and assistive service can not meet the needs of people with spinal cord injury. A sound service network, specification process of aids service and personnel training are recommended to improve the assistive devices service.Objective: To survey the needs and application of rehabilitation aids in hospitalized patients with spinal cord injury.Method: Using pre-designed questionnaire, by reading case histories and assistive devices equipped records, to survey the application of rehabilitation aids in patients with spinal cord injury.Result: Seventy-three patients with spinal cord injury involved in the survey. Forty cases (54.79%) were equipped with assistive devices before admission, but 61.54% of the assistive devices did not meet the needs of patients. Seventy-one patients (97.26%) were equipped with assistive devices after admission. The amounts of rehabilitation aids were 224 self-care aids, 101 orthopedics, 64 wheelchairs, 49 pressure garments, and 37 walking aids, respectively. Compared with before, the scores of modified Barthel index improved significantly (P<0.001) after using assistive devices in all the groups of cervical, thoracic and lumbar injury levels. Source

Discover hidden collaborations