Kondraske George V, Mulukutla Rahul, Stewart R Malcolm
Human Performance Inst., Texas Univ., Arlington, TX 76019-0180, USA.
Conf Proc IEEE Eng Med Biol Soc. 2006;2006:3962-5. doi: 10.1109/IEMBS.2006.260796.
Motivated by the need for clinical screening for early detection of neurologic disease, a prototype portable instrument dubbed the human performance multimeter (HPMM) was developed. The HPMM is based on a set of lab-based performance capacity tests developed and evaluated over the last two decades. We attempted to integrate selected functionality of a set of modular lab-based instruments into a single, small package. In the present study, a 4th generation prototype was developed and evaluated for usability, measurement repeatability, and preliminary measurement validity. Five performance capacity tests (upper extremity coordination, isometric grip strength, simple response speed, rapid alternating movement, and steadiness/tremor) were administered to twenty healthy adult volunteers. Short-term reliability was investigated using a test-retest protocol. Most measures were found to possess good test-retest reliability (r>0.75). Preliminary validity was investigated by comparing results to those obtained with non-portable devices that served as models for the HPMM. Results were in good agreement with those instruments. It is concluded that measures of good fidelity can be obtained with this type of instrument.
受临床筛查以早期发现神经系统疾病需求的推动，研发了一种名为人体性能万用表（HPMM）的便携式仪器原型。HPMM基于过去二十年来开发和评估的一组实验室性能测试。我们试图将一组模块化实验室仪器的选定功能集成到一个小的单一设备中。在本研究中，开发了第四代原型，并对其可用性、测量重复性和初步测量有效性进行了评估。对20名健康成年志愿者进行了五项性能测试（上肢协调性、等长握力、简单反应速度、快速交替运动以及稳定性/震颤）。使用重测方案研究短期可靠性。发现大多数测量具有良好的重测可靠性（r>0.75）。通过将结果与用作HPMM模型的非便携式设备获得的结果进行比较来研究初步有效性。结果与那些仪器高度一致。得出的结论是，使用这种类型的仪器可以获得高保真度的测量结果。
