http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
운동선수의 대칭성을 위한 롤링 패턴의 평가와 중재 : 편측 종목 중심으로 연구
심운용,김재은 대한스포츠물리치료학회 2023 정형스포츠물리치료학회지 Vol.19 No.2
Purpose: The rolling pattern is a crucial part of human development and movement, utilized in assessingmovement development in children and evaluating the physical abilities of adults. This pattern is essentialfor enhancing various joint movements and balance, serving as a significant performance element for athletessuch as unilateral sports athletes. It can be a vital tool for injury prevention and identifying functionalimpairments, even among athletes. Methods: The rolling test helps differentiate localized and overall functional limitations. To conduct an accurateevaluation, it requires flexibility, core stability, controlled movement, and adequate limb/trunk range. Itassesses thoracic/lumbar rotation, core control, and limb rotation. Prior to the test, examinations such asthoracic rotation, pelvic rotation, and pelvic tilt are necessary. Moreover, the rolling test should be evaluatedin conjunction with selective functional movement assessment (TPI medical2). Before intervening in rollingissues, they're broadly divided into Mobility Dysfunction (MD) and Stability Motor Control Dysfunction (SMCD). A 3-step process called 3R (Reset, Reinforce, Retrain) is used for resolution, enhanced through correctiveexercises. These exercises apply two feedback types: Facilitate, easing movement difficulty, and Challenge,engaging other body parts for core posture adjustments. Results: A 15-year experienced, right-handed professional golfer in his 20s, standing at 188 cm and weighing90 kg, addressed his asymmetry issues. After the evaluation, corrective exercises for pelvic tilting, rotation,and rolling were conducted, resulting in an improvement in clubhead speed from 106 mph to 110 mph. Thisled to enhancements in upper and lower body rolling and improvements in thoracic and pelvic examinations. These outcomes suggest an improvement in the participant's swing mechanics. Conclusion: Athletes may suffer imbalances and injuries due to biased movements and rotations. Unilateralsports athletes, in particular, are prone to spinal injuries as a result of these issues. Symmetry is crucial forhealthy functionality, and the rolling pattern aids in restoring this symmetry. Additionally, evaluating symmetrybetween the upper and lower body, as well as left-right balance, is crucial.
李鎬俊,沈雲用,鄭白鎬 湖西大學校工業技術硏究所 1999 工業技術硏究所論文集 Vol.18 No.-
In recent years, the biggest issue of WDM system is in increasing its bandwidth. Transmission bandwidth of WDM may be limited by many kinds of component, and the bandwidth plays impotent role in most of all optical amplifiers. Transmission bandwidth of recent WDM is limited in about 40 nm. This limit depends on EDFA(?? Fiber Amplifier) gain bandwidth. To overcome this problem, we may use L and S band using Yb/Nd doped fiber amplifier. Wideband amplifier, which is consisted of RFA for L band and EDFA for M band using single pump laser diode, is presented. The amplifiers have been analyzed numerically for the design.