The Society of Chinese Bioscientists in America and the Department of Biochemis-try,Chinese University of Hong Kong,are organizing a third international sympo-sium and workshop to be held in Hong Kong,June 24-30,1990....The Society of Chinese Bioscientists in America and the Department of Biochemis-try,Chinese University of Hong Kong,are organizing a third international sympo-sium and workshop to be held in Hong Kong,June 24-30,1990.The Society ofChinese Bioscientists in America was founded in 1985 and has a membership of justover 1000.Most of the members are located in North America.The membership alsoincludes an appreciable number of bioscientists in China’s mainland,Taiwan,andHong Kong.The preliminary program includes the following:展开更多
The Society of Chinese Bioscientists in America and the Department of Biochemistry, Chinese University of Hong Kong, are organizing a third international symposium and workshop to be held in Hong Kong, June 24-30, 199...The Society of Chinese Bioscientists in America and the Department of Biochemistry, Chinese University of Hong Kong, are organizing a third international symposium and workshop to be held in Hong Kong, June 24-30, 1990. The Society of Chinese Bioscientists in America was founded in 1985 and has a membership of just over 1000. Most of the members are located in North America. The membership also includes an appreciable number of bioscientists in Mainland China, Taiwan, and Hong Kong. The following is an outline of the program:展开更多
Firefighters’low back disorders(LBDs)are closely related to excessive spine loading when using the self-contained breathing apparatus(SCBA)continuously.The purpose of this study was to quantify firefighters’spine lo...Firefighters’low back disorders(LBDs)are closely related to excessive spine loading when using the self-contained breathing apparatus(SCBA)continuously.The purpose of this study was to quantify firefighters’spine loading and evaluate the effects of strap lengths of SCBA on altering spine loading.Computer-based musculoskeletal models of three varying-strapped SCBA conditions and a control condition(CC)with no SCBA equipped were developed.The model was driven using three-dimensional(3 D)inertial motion capture data from twelve male subjects performing a walking task and the predicted ground reaction force(GRF).Electromyography(EMG)activities were also recorded to validate the results from the model.The 4 th-5 th lumbar vertebra(L4/L5)joint reaction forces,as well as erector spinae and rectus abdominis forces,were finally obtained.Results demonstrated that carrying SCBA significantly increased the compressive force and anteroposterior shear force at the spine.The risk of potential LBDs increased by about 17.77%.Dynamic balance of erector spinae and rectus abdominis contraction was also disturbed when carrying SCBA,indicating a higher risk of spine muscle strain.Adjustment of SCBA strap length was an efficient method to influence spine loading.The medium-fitting strap(MS)with a length of around 101 cm generated minimum joint reaction forces and achieved the optimum dynamic balance of spine muscle contraction,which was recommended for firefighters.展开更多
文摘The Society of Chinese Bioscientists in America and the Department of Biochemis-try,Chinese University of Hong Kong,are organizing a third international sympo-sium and workshop to be held in Hong Kong,June 24-30,1990.The Society ofChinese Bioscientists in America was founded in 1985 and has a membership of justover 1000.Most of the members are located in North America.The membership alsoincludes an appreciable number of bioscientists in China’s mainland,Taiwan,andHong Kong.The preliminary program includes the following:
文摘The Society of Chinese Bioscientists in America and the Department of Biochemistry, Chinese University of Hong Kong, are organizing a third international symposium and workshop to be held in Hong Kong, June 24-30, 1990. The Society of Chinese Bioscientists in America was founded in 1985 and has a membership of just over 1000. Most of the members are located in North America. The membership also includes an appreciable number of bioscientists in Mainland China, Taiwan, and Hong Kong. The following is an outline of the program:
基金Fundamental Research Funds for the Central Universities,China(No.2232022G-08)。
文摘Firefighters’low back disorders(LBDs)are closely related to excessive spine loading when using the self-contained breathing apparatus(SCBA)continuously.The purpose of this study was to quantify firefighters’spine loading and evaluate the effects of strap lengths of SCBA on altering spine loading.Computer-based musculoskeletal models of three varying-strapped SCBA conditions and a control condition(CC)with no SCBA equipped were developed.The model was driven using three-dimensional(3 D)inertial motion capture data from twelve male subjects performing a walking task and the predicted ground reaction force(GRF).Electromyography(EMG)activities were also recorded to validate the results from the model.The 4 th-5 th lumbar vertebra(L4/L5)joint reaction forces,as well as erector spinae and rectus abdominis forces,were finally obtained.Results demonstrated that carrying SCBA significantly increased the compressive force and anteroposterior shear force at the spine.The risk of potential LBDs increased by about 17.77%.Dynamic balance of erector spinae and rectus abdominis contraction was also disturbed when carrying SCBA,indicating a higher risk of spine muscle strain.Adjustment of SCBA strap length was an efficient method to influence spine loading.The medium-fitting strap(MS)with a length of around 101 cm generated minimum joint reaction forces and achieved the optimum dynamic balance of spine muscle contraction,which was recommended for firefighters.
