目的本文对颈椎病的运动疗法及机制进展进行综述,以期进一步为本病临床运动处方的制定和相关研究的开展提供参考。方法基于文献研究,以“颈椎病”“颈痛”“运动治疗”“运动控制”“悬吊”“传统功法”“八段锦”等为关键词,在中国知...目的本文对颈椎病的运动疗法及机制进展进行综述,以期进一步为本病临床运动处方的制定和相关研究的开展提供参考。方法基于文献研究,以“颈椎病”“颈痛”“运动治疗”“运动控制”“悬吊”“传统功法”“八段锦”等为关键词,在中国知网、万方知识服务平台、维普网数据库中检索中文文献;以“cervical spondylosis”“neck pain”“exercise therapy”“motor control training”“sling exercise training”“qigong”“Baduanjin”为关键词,在PubMed、Web of Science数据库中检索英文文献,检索时间范围2013年2月至2023年5月。结果在治疗颈椎病的运动疗法中,传统功法如八段锦、太极拳、五禽戏等运动强度小,简便易学,安全有效;现代运动疗法如运动控制、悬吊、牵伸训练等运动强度不等、坚持治疗疗效显著;运动疗法联合其他常规治疗或是运动疗法间的联合治疗效果更佳。运动疗法通过拉伸颈肌促进血液循环,激活脊髓上中枢镇痛通路,增加抗炎信号转导,降低肿瘤坏死因子-α(TNF-α)水平,发挥镇痛作用;增强肌力,改善僵硬和疲劳,恢复椎体力学平衡;增加神经与肌肉间的反馈,改善颈部本体感觉。结论运动疗法主要通过抗炎镇痛、改善颈椎感觉与运动功能来治疗颈椎病。运动疗法可有效改善颈椎病患者颈部疼痛和功能障碍,缓解患者焦虑不安等不良情绪,提高患者生活质量。展开更多
An equivalent electrical network method is presented in this paper to analyze the cooling characteristics of a laser diode module (LDM).And a modified equivalent model of a thermoelectric cooler (TEC) with an adjuncti...An equivalent electrical network method is presented in this paper to analyze the cooling characteristics of a laser diode module (LDM).And a modified equivalent model of a thermoelectric cooler (TEC) with an adjunctive thermal resistance and a contact resistance is proposed.The performance of a commercial TEC has been simulated.The thermal analysis of a LDM incorporated with a TEC has been performed by using an equivalent circuit model of the LDM.In the analysis the change of LD current,TEC current,and the ambient temperature are all considered.It shows that the equivalent circuit approach is an effective tool for the qualitative analysis of TEC and LDM.展开更多
A one-dimensional two-layer Frenkel–Kontorova model is studied.Firstly,a feedback tracking control law is given.Then,the boundedness result for the error states of single particles of the model is derived using the L...A one-dimensional two-layer Frenkel–Kontorova model is studied.Firstly,a feedback tracking control law is given.Then,the boundedness result for the error states of single particles of the model is derived using the Lyapunov Method.Especially,the motion of single particles can be approximated analytically for the case of sufficiently large targeted velocity.Simulations illustrate the accuracy of the derived results.展开更多
文摘目的本文对颈椎病的运动疗法及机制进展进行综述,以期进一步为本病临床运动处方的制定和相关研究的开展提供参考。方法基于文献研究,以“颈椎病”“颈痛”“运动治疗”“运动控制”“悬吊”“传统功法”“八段锦”等为关键词,在中国知网、万方知识服务平台、维普网数据库中检索中文文献;以“cervical spondylosis”“neck pain”“exercise therapy”“motor control training”“sling exercise training”“qigong”“Baduanjin”为关键词,在PubMed、Web of Science数据库中检索英文文献,检索时间范围2013年2月至2023年5月。结果在治疗颈椎病的运动疗法中,传统功法如八段锦、太极拳、五禽戏等运动强度小,简便易学,安全有效;现代运动疗法如运动控制、悬吊、牵伸训练等运动强度不等、坚持治疗疗效显著;运动疗法联合其他常规治疗或是运动疗法间的联合治疗效果更佳。运动疗法通过拉伸颈肌促进血液循环,激活脊髓上中枢镇痛通路,增加抗炎信号转导,降低肿瘤坏死因子-α(TNF-α)水平,发挥镇痛作用;增强肌力,改善僵硬和疲劳,恢复椎体力学平衡;增加神经与肌肉间的反馈,改善颈部本体感觉。结论运动疗法主要通过抗炎镇痛、改善颈椎感觉与运动功能来治疗颈椎病。运动疗法可有效改善颈椎病患者颈部疼痛和功能障碍,缓解患者焦虑不安等不良情绪,提高患者生活质量。
文摘An equivalent electrical network method is presented in this paper to analyze the cooling characteristics of a laser diode module (LDM).And a modified equivalent model of a thermoelectric cooler (TEC) with an adjunctive thermal resistance and a contact resistance is proposed.The performance of a commercial TEC has been simulated.The thermal analysis of a LDM incorporated with a TEC has been performed by using an equivalent circuit model of the LDM.In the analysis the change of LD current,TEC current,and the ambient temperature are all considered.It shows that the equivalent circuit approach is an effective tool for the qualitative analysis of TEC and LDM.
基金by the U.S.National Science Foundation under Grant No CMMI 0825613.
文摘A one-dimensional two-layer Frenkel–Kontorova model is studied.Firstly,a feedback tracking control law is given.Then,the boundedness result for the error states of single particles of the model is derived using the Lyapunov Method.Especially,the motion of single particles can be approximated analytically for the case of sufficiently large targeted velocity.Simulations illustrate the accuracy of the derived results.
