Bhambhani Y, Esmail S, Brintnell S
Department of Occupational Therapy, University of Alberta, Edmonton, Canada.
Am J Occup Ther. 1994 Jan;48(1):19-25. doi: 10.5014/ajot.48.1.19.
The Baltimore Therapeutic Equipment (BTE) work simulator is routinely used by occupational therapists in functional capacity evaluation. Currently, there is a lack of normative data for various attachments on this instrument. The purposes of this study were to (a) establish norms for the biomechanical and physiological responses during three tasks on the BTE work simulator, namely, wheel-turn, push-pull, and overhead-reach; (b) compare these responses during the three tasks, and (c) examine the interrelationships of these responses during the tasks.
Twenty healthy men completed five testing sessions: (a) task familiarization on the BTE work simulator to identify the work intensity, which was perceived as hard on the Borg scale; (b) an incremental arm ergometer exercise test to determine their peak oxygen uptake (pVO2) and peak heart rate (pHR); and (c) one of the three tasks on the BTE work simulator for 4 min in each of the next three sessions.
Analysis of variance indicated that torque, work, and power during the overhead-reach were significantly higher (p = .000) compared with the wheel-turn and push-pull tasks. However, no significant differences (p > .05) were observed among the tasks for the VO2 and HR, which were approximately 50% and 70% of pVO2 and pHR respectively. Although there was a significant relationship (p < .05) among tasks for the torque, work, and power, the common variance ranged only between 38% and 67%. The relative pVO2 was significantly related to work (p = .028) and power (p = .027) only during the push-pull task but not the wheel-turn and overhead-reach tasks.
These results suggest that occupational therapists should include as many tasks as possible when designing functional capacity evaluation test batteries, and that there is no consistent relationship between cardiorespiratory fitness and performance of various tasks on the BTE work simulator.
职业治疗师在功能能力评估中经常使用巴尔的摩治疗设备（BTE）工作模拟器。目前，该仪器各种附件缺乏规范数据。本研究的目的是：（a）建立BTE工作模拟器上三项任务（即轮转、推拉和过顶伸展）期间生物力学和生理反应的规范；（b）比较这三项任务期间的这些反应；（c）检查任务期间这些反应的相互关系。
20名健康男性完成了五次测试：（a）在BTE工作模拟器上进行任务熟悉，以确定工作强度，在博格量表上被认为是高强度；（b）进行递增式手臂测力计运动测试，以确定他们的峰值摄氧量（pVO2）和峰值心率（pHR）；（c）在接下来的三次测试中，每次在BTE工作模拟器上进行三项任务之一，持续4分钟。
方差分析表明，与轮转和推拉任务相比，过顶伸展期间的扭矩、功和功率显著更高（p = .000）。然而，VO2和HR在任务之间未观察到显著差异（p > .05），分别约为pVO2和pHR的50%和70%。尽管扭矩、功和功率在任务之间存在显著关系（p < .），但共同方差仅在38%至67%之间。仅在推拉任务期间，相对pVO2与功（p = .028）和功率（p = .027）显著相关，而在轮转和过顶伸展任务中则不然。
这些结果表明，职业治疗师在设计功能能力评估测试组时应包括尽可能多的任务，并且心肺适能与BTE工作模拟器上各种任务的表现之间没有一致的关系。
