Browsing by Author "Kuo, Chih-Lin"

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Calcium and Vitamin D Supplementation on Bone Health: Current Evidence and Recommendations
(2014-12-01)
Chen, Li-Ru
;
Wen, Yu-Tang
;
Kuo, Chih-Lin
;
Chen, Kuo-Hu
;
機械工程學系
Population aging and osteoporosis are global public health challenges. Osteoporosis markedly increases the risk of fractures, and further morbidity and mortality. Calcium is a major constituent of the bone and vitamin D helps maintain calcium homeostasis. Calcium and vitamin D supplements have long been recognized as the cornerstones for prevention and management of osteoporosis and fractures. Although the associations between calcium and vitamin D supplementation and bone mineral density, fracture prevention, and potential adverse outcomes from available evidence are inconsistent, the Institute of Medicine Committee and the American Geriatrics Society support a key role of calcium and vitamin D in skeletal health. There is insufficient evidence to conclude that calcium with or without vitamin D supplementation increases the risk of cardiovascular events and cancer. Older adults should obtain at least 1000 IU/day of vitamin D with 1000-1200 mg/day of calcium to reduce the risk of fractures. The actual supplementation levels of calcium and vitamin D should be advised individually to specific patient or situation. Copyright (C) 2014, Taiwan Society of Geriatric Emergency & Critical Care Medicine. Published by Elsevier Taiwan LLC. All rights reserved.
Surface electromyography analysis of blepharoptosis correction by transconjunctival incisions
(2016-06)
Tu, Lung-Chen
;
Wu, Ming-Chya
;
Chu, Hsueh-Liang
;
Chiang, Yi-Pin
;
Kuo, Chih-Lin
Upper eyelid movement depends on the antagonistic actions of orbicularis oculi muscle and levator aponeurosis. Blepharoptosis is an abnormal drooping of upper eyelid margin with the eye in primary position of gaze. Transconjunctival incisions for upper eyelid ptosis correction have been a welldeveloped technique. Conventional prognosis however depends on clinical observations and lacks of quantitatively analysis for the eyelid muscle controlling. This study examines the possibility of using the assessments of temporal correlation in surface electromyography (SEMG) as a quantitative description for the change of muscle controlling after operation. Eyelid SEMG was measured from patients with blepharoptosis preoperatively and postoperatively, as well as, for comparative study, from young and aged normal subjects. The data were analyzed using the detrended fluctuation analysis method. The results show that the temporal correlation of the SEMG signals can be characterized by two indices associated with the correlation properties in short and long time scales demarcated at 3 ms, corresponding to the time scale of neural response. Aging causes degradation of the correlation properties at both time scales, and patient group likely possess more serious correlation degradation in long-time regime which was improved moderately by the ptosis corrections. We propose that the temporal correlation in SEMG signals may be regarded as an indicator for evaluating the performance of eyelid muscle controlling in postoperative recovery. (C) 2016 Elsevier Ltd. All rights reserved.