Nene A V, Jennings S J
Orthotic Research & Locomotor Assessment Unit, Robert Jones & Agnes Hunt Hospital, Oswestry, Shropshire, England.
Paraplegia. 1992 Apr;30(4):246-52. doi: 10.1038/sc.1992.63.
Energy expenditure is an important parameter in the assessment of gait and orthotic treatment of locomotor disabilities. Up until now oxygen uptake measurement has been the most common method used to assess this. In able bodied subjects heart rate monitoring is also increasingly used. In high thoracic level lesion paraplegics monitoring heart rate was considered to be unreliable because of suspicion of injury to the sympathetic contribution to the cardiac plexus. Bar-On & Nene found that in paraplegics below the lesion level T3 heart rate still shows linear relation to oxygen uptake. MacGregor combined the heart rate and speed of locomotion to produce a single index called physiological cost index. This study consists of monitoring heart rate and speed of 16 adult thoracic level paraplegics walking with the ORLAU ParaWalker, calculation of their physiological cost index, and establishing a range of physiological cost index of paraplegic locomotion using the ORLAU ParaWalker.
能量消耗是评估步态和运动障碍矫形治疗的一个重要参数。到目前为止，测量摄氧量一直是评估能量消耗最常用的方法。在身体健全的受试者中，心率监测也越来越多地被使用。在高位胸椎损伤的截瘫患者中，由于怀疑心脏丛的交感神经受到损伤，心率监测被认为不可靠。Bar-On和Nene发现，在T3以下损伤水平的截瘫患者中，心率与摄氧量仍呈线性关系。MacGregor将心率和运动速度结合起来，得出一个名为生理成本指数的单一指标。本研究包括监测16名成年胸椎水平截瘫患者使用ORLAU ParaWalker行走时的心率和速度，计算他们的生理成本指数，并确定使用ORLAU ParaWalker的截瘫患者运动的生理成本指数范围。
