Ferrigno G, Pedrocchi A, Baroni G, Bracciaferri F, Neri G, Pedotti A
TBM-Lab Department di Bioengineering Politecnico di Milano, Milano, Italy.
Acta Astronaut. 2004 May;54(10):723-35. doi: 10.1016/s0094-5765(03)00240-6.
Experimental observations of adaptation processes of the motor control system to altered gravity conditions can provide useful elements to the investigations on the mechanisms underlying motor control of human subject. The microgravity environment obtained on orbital flights represents a unique experimental condition for the monitoring of motor adaptation. The research in motor control exploits the changes caused by microgravity on the overall sensorimotor process, due to the impairment of the sensory systems whose function depends upon the presence of the gravity vector. Motor control in microgravity has been investigated during parabolic flights and short-term space missions, in particular for analysis of movement-posture co-ordination when equilibrium is no longer a constraint. Analysis of long-term adaptation would also be very interesting, calling for long-term body motion observations during the process of complete motor adaptation to the weightlessness environment. ELITE-S2 is an innovative facility for quantitative human movement analysis in weightless conditions onboard the International Space Station (ISS). ELITE-S2 is being developed by the Italian Space Agency, ASI is to be delivering the flight models to NASA to be included in an expressed rack in US Lab Module in February 2004. First mission is currently planned for summer 2004 (increment 10 ULF 2 ISS).
运动控制系统对重力条件改变的适应过程的实验观察，可以为研究人类受试者运动控制的潜在机制提供有用的元素。轨道飞行中获得的微重力环境是监测运动适应的独特实验条件。运动控制研究利用了微重力对整个感觉运动过程造成的变化，这是由于感觉系统功能依赖重力矢量的存在而受损所致。微重力环境下的运动控制已在抛物线飞行和短期太空任务中进行了研究，特别是在平衡不再是限制因素时对运动 - 姿势协调的分析。对长期适应的分析也会非常有趣，这需要在完全适应失重环境的运动过程中进行长期身体运动观察。ELITE - S2是国际空间站（ISS）上用于在失重条件下进行人体运动定量分析的创新设备。ELITE - S2由意大利航天局开发，ASI将于2004年2月向美国国家航空航天局交付飞行模型，以便纳入美国实验室模块的一个专用机架。首次任务目前计划于2004年夏季执行（国际空间站第10次长期飞行任务第2阶段）。
