Recent studies reveal that grip forces during the hand-arm vibration are most significant for the genesis of vibration-induced white finger syndrome. Therefore, exerted grip forces and skin temperatures or fingers were regarded as dependent variables in experiments and the effects of grip temperature, noise, pushing force, vibration and the combined effect of vibration and pushing force were studied. The objectives or the present study were, first, to varify and compare the changes of grip force affected by grip temperature, noise, pushing force, vibration and the combined effect of vibration and pushing force and, second, to observe the reaction of finger skin temperature affected by above factors. Forty-six healthy male students(25.07+/-2.85) participated in five systematically permuted trials, which endured 4 minutes each other. Experiments were executed in a special chamber with an air temperature of 21 C. In each experiments, the subjects were exposed to five experiment types: (l) grip force of 25 N only, (2) pushing force of 50 N, (3) acceleration of vibration 7.1m/sec2(z-direction), (4) pink noise or 95 dB(A) and (5) combination of pushing force 50 N and acceleration of vibration 7.1m/sec2. A repeated-measures analysis of variance(ANOVA) was performed on the grip force to test whether it was affected by noise, pushing force, vibration and pushing force. The present results show that vibration was significantly related to the increase of grip force, but the other factors, such as pushing force, noise and grip temperature had no significant influence on the increase of grip force and that the reaction of finger skin temperature were significantly affected by the skin temperature at start of experiment and grip temperature, not grip force and other experimental conditions. Therefore, we suggest that the management for decreasing the grip force is meaningful to prevent the occurrence of Hand-arm vibration syndrome (HAVS).
Acceleration ; Fingers* ; Hand Strength* ; Hand-Arm Vibration Syndrome ; Humans ; Male ; Noise* ; Skin Temperature* ; Skin* ; Vibration*

Background: According to the American Heart Association, post- stroke patients often have neurologic deficits which can lead to a variety of complications. Patient-centered approach to care promotes shared decision-making between physicians and patients regarding treatment plan and may lead to better health outcomes for these post-stroke patients Objective: The effectiveness of patient-centered intervention in improving physical functioning among adult post-stroke patients with residual neurologic deficit was determined. Secondary outcomes such as improvement in social functioning, activities of daily living, quality of life and prevention of negative events such as death, re-hospitalization and depression were also evaluated Method: This systematic review included comparative randomized clinical trials involving humans as the clinical subjects, diagnosed to have had a stroke and appropriately evaluated to be in recovery with residual neurologic deficit, with the intervention described labeled as ‘patient-centered care’, and reporting an outcome on the improvement of physical functioning. Online search was done in Pubmed, CENTRAL, NICE, and the grey literature. Three reviewers independently conducted the search, appraisal and data extraction Results: Results varied depending on the outcome measurement tool utilized by the included studies. There was no difference between groups in terms of overall physical functioning and ADL as measured by SIS 16 and SIS 3.0. However, significant improvement was noted in the following subscales of SIS 3.0: hand movement (0.45,3.18, p=0.009, I2=0%), communication (0.86,2.16, p<0.00001, I2= 0%), and memory and thinking (0.13, 1.74, p=.02, I2= 33%). Physical function, ADL and social functioning using RNLI as an outcome (1.44-3.70] p<0.00001, I2= 0%), and physical functioning, social functioning, ADL and QOL as measured by participation (1.48, 3.74, p<0.00001, I2= 0%) and perception of recovery (2.22, 4.00, p<0.00001, I2=0%) also showed significant improvement Conclusion Patient-centered approaches have potential benefit in improving specific components of physical and social functioning, ADL and quality of life. However, differences in the type of patient-centered intervention and outcome measurement tools warrant further investigation into the specific interventions which will provide the most benefit to post-stroke patients
Meta-Analysis ; Stroke