摘要:

As part of an evaluation of the voluntary health promotion program offered by Johnson & Johnson to its employees, comparisons were made between nonrespondents and respondents (75% of all employees) in the baseline health screen. A survey of randomly selected nonrespondents was conducted in 1979–1980 to collect health and life-style information. Comparisons between respondents and nonrespondents on a multitude of characteristics indicated that the nonrespondents reported life-styles as healthful as those of the respondents with the exception that significantly more nonrespondents reported ever having smoked cigarettes and significantly more female nonrespondents currently smoke. These results suggest that the systematic biases found among nonrespondents in general population health surveys do not exist among this more homogeneous employed population and imply that the participants in the program provide a good estimate of the health status and life-style of the entire workforce.

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

摘要:

The frequency spectrum of hand tremor amplitude was investigated in a group of 15 control subjects under four different conditions (rest position, wrist loading with 2 kg, pointer directed to a target, and wrist loading plus pointer). The series of four tremor recordings was repeated on three different days. The hand tremor pattern was recorded using an accelerometer connected to a tape recorder through a precision sound level meter. The tremor signals were subsequently analyzed with a real time spectrum analyzer. Different parameters (peak frequencies, acceleration amplitudes, moments, displacements, and velocities) have been determined and their variablity has been characterized. The method described for hand tremor recording is suitable for field application.

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID